IFSC1515AHER3R3M01 >
IFSC1515AHER3R3M01
Vishay Dale
FIXED IND 3.3UH 2.7A 56 MOHM SMD
16427 Pcs New Original In Stock
3.3 µH Shielded Inductor 2.7 A 56mOhm Max Nonstandard
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IFSC1515AHER3R3M01 Vishay Dale
5.0 / 5.0 - (415 Ratings)

IFSC1515AHER3R3M01

Product Overview

13031371

DiGi Electronics Part Number

IFSC1515AHER3R3M01-DG

Manufacturer

Vishay Dale
IFSC1515AHER3R3M01

Description

FIXED IND 3.3UH 2.7A 56 MOHM SMD

Inventory

16427 Pcs New Original In Stock
3.3 µH Shielded Inductor 2.7 A 56mOhm Max Nonstandard
Quantity
Minimum 1

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In Stock (All prices are in USD)
  • QTY Target Price Total Price
  • 1 0.5816 0.5816
  • 10 0.4668 4.6680
  • 30 0.4086 12.2580
  • 100 0.3519 35.1900
  • 500 0.3170 158.5000
  • 1000 0.2996 299.6000
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IFSC1515AHER3R3M01 Technical Specifications

Category Fixed Inductors

Manufacturer Vishay

Packaging Cut Tape (CT) & Digi-Reel®

Series IFSC-1515AH-01

Packaging Tape & Reel (TR)

Part Status Active

Type -

Material - Core -

Inductance 3.3 µH

Tolerance ±20%

Current Rating (Amps) 2.7 A

Current - Saturation (Isat) 2.4A

Shielding Shielded

DC Resistance (DCR) 56mOhm Max

Q @ Freq -

Frequency - Self Resonant -

Ratings -

Operating Temperature -55°C ~ 125°C

Inductance Frequency - Test 100 kHz

Mounting Type Surface Mount

Package / Case Nonstandard

Supplier Device Package -

Size / Dimension 0.157" L x 0.157" W (4.00mm x 4.00mm)

Height - Seated (Max) 0.075" (1.90mm)

Datasheet & Documents

Environmental & Export Classification

RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8504.50.8000

Additional Information

Other Names
IFSC1515AHER3R3M01-ND
541-2549-1
541-2549-2
541-2549-6
Standard Package
2,000

Low Profile, High Reliability: Vishay Dale IFSC1515AHER3R3M01 Shielded Power Inductor for Modern Power Applications

Product Overview: IFSC1515AHER3R3M01 Vishay Dale Fixed Inductor

The IFSC1515AHER3R3M01 fixed inductor from Vishay Dale exemplifies targeted engineering for efficient energy storage and signal integrity within tightly packed electronic architectures. At its core, the 3.3 μH inductance value is calibrated to facilitate high switching frequencies common in advanced DC-DC converter topologies. Such frequency selection is crucial for reducing the physical size of passive components and enhancing transient response, directly benefiting applications in mobile and IoT hardware where board real estate is at a premium.

Current handling is a pivotal characteristic engineered into this device, with a rated maximum of 2.7 A. This is achieved through optimized winding geometry and material selection, mitigating core losses and local hot spots under dynamic load scenarios. The low DC resistance, capped at 56 mΩ, contributes directly to power stage efficiency by minimizing I²R losses even under continuous high-current conditions. This property aligns well with the demands of battery-powered systems and regulated voltage rails for high-performance microcontrollers, where thermal management and battery longevity are persistent design challenges.

Compact encapsulation at 4.0 mm × 4.0 mm × 1.8 mm achieves dual objectives: supporting high-density circuit topology while streamlining automated surface-mount assembly. This form factor, combined with an enclosed magnetic structure, delivers effective EMI suppression, reducing both radiated and conducted noise. Such suppression is indispensable in sensitive RF modules, medical devices, and precision analog front-ends where compliance with stringent EMI emission standards is non-negotiable.

From a practical perspective, the IFSC1515AHER3R3M01 demonstrates reliable solderability and mechanical robustness during reflow processes, minimizing coplanarity concerns and ensuring integrity during high-cycle thermal excursions. During in-circuit validation, low core loss across a wide switching frequency range has been observed, supporting both continuous and burst-mode converter operation without excessive derating. Design teams benefit from predictable inductance under DC bias, facilitating accurate loop compensation and simulation models—an often underestimated advantage during iterative prototyping.

Analysis reveals that the device not only meets, but often exceeds, the balance point between profile reduction and current capacity—a common constraint in the design of compact power supplies for embedded and wearable devices. Furthermore, the inductor’s electrical and mechanical characteristics enhance layout flexibility, allowing closer proximity to active components and further limiting EMI coupling paths.

Ultimately, the IFSC1515AHER3R3M01 marries miniature size with rugged electrical performance, offering an advanced passive solution for engineers optimizing efficiency, signal quality, and system dependability in the ever-shrinking landscape of modern electronic assemblies.

Key Features and Construction Details of IFSC1515AHER3R3M01

The IFSC1515AHER3R3M01 incorporates an advanced magnetic architecture engineered for precise performance in modern power applications. The primary structure employs a wirewound copper coil configured around a high-permeability ferrite core, a combination designed to maximize energy transfer efficiency while minimizing core losses under high-frequency operation. The encapsulation process utilizes a proprietary iron-infused epoxy resin, generating a robust magnetic shield critical for suppressing electromagnetic interference. This not only assures low radiated and conducted EMI but also addresses internal crosstalk and noise coupling challenges encountered in high-density circuit topologies.

The package’s low-profile form factor is specifically aligned with the stringent volumetric constraints of next-generation compact electronic assemblies. Its geometry optimizes thermal dissipation pathways, enhancing current handling capability without sacrificing board-level reliability. Such mechanical resilience enables straightforward integration into surface-mount automated assembly environments, maintaining both placement accuracy and post-reflow electrical characteristics within tight tolerances. Practical observation highlights the reduction of self-resonance effects, especially in switching regulator designs where parasitic capacitance can degrade filtering performance at elevated frequencies.

Within the IFSC1515AHER series, the 3.3μH model targets power stages operating at frequencies typically above 500kHz—an operational domain where minimizing core heating and optimizing inductive energy storage are essential. The chosen inductance value delivers a calculated compromise between ripple current attenuation and fast transient responsiveness, essential for advanced DC-DC converters and point-of-load modules. In system-level benchmarks, the device demonstrates repeatably low DCR, supporting efficiency goals crucial for battery-powered and thermally constrained platforms.

Adherence to RoHS3 and halogen-free directives repositions the component for deployment in sustainable product ecosystems where material traceability and environmental impact are scrutinized. This alignment not only futureproofs designs from an environmental compliance perspective but also reflects an industry trend toward health-conscious electronics manufacturing.

Consistent implementation reveals an additional benefit: the device’s construction mitigates microphonic noise contributions, especially under varying mechanical and thermal stress, ensuring stable operation for sensitive analog front-ends and RF subsystems. The synthesis of these design features supports a unique competitive profile, particularly suited for engineers focused on balancing efficiency, compliance, and miniaturization in advanced electronics systems.

Electrical Specifications and Performance Characteristics of IFSC1515AHER3R3M01

The IFSC1515AHER3R3M01 is engineered to deliver consistent electrical behavior across a broad range of operating conditions in power conversion circuits. At an ambient temperature of 25°C, the component supports a maximum DC current throughput of 2.7A. This current capacity is determined such that the resultant temperature increase remains around 40°C, ensuring device longevity and reliability within the full specified temperature envelope of -55°C to +125°C. This thermal margin is critical for maintaining the material integrity of the inductor and guaranteeing sustained operation under both transient and continuous load conditions.

The part’s direct current resistance (DCR) is capped at 56mΩ, a value optimized to minimize conduction losses especially in high-current, low-voltage designs where even modest resistance significantly impacts efficiency. Reduced DCR translates directly to lower temperature rise, decreasing the risk of hot spot formation and enabling higher density integration in power modules. In practice, this low-resistance characteristic benefits applications such as DC-DC buck converters and point-of-load regulators, where efficiency targets are stringent, PCB real estate is limited, and thermal management must be tightly controlled.

A key strength of the IFSC1515AHER3R3M01 lies in its ability to maintain inductance under DC bias. The robust magnetic core structure and material composition allow for less than 30% inductance roll-off, even when subjected to substantial levels of bias current. This ensures that filtering and transient response behavior remain well controlled even as load conditions fluctuate, preventing undesirable voltage dips or overshoot. In switched-mode power supplies and advanced processor rails, this stability under DC bias supports precise voltage regulation and noise suppression, a priority in modern embedded and high-speed digital systems.

The component is also specified for robust mechanical and thermal resilience during assembly. It can withstand standard lead-free reflow profiles of up to 260°C for 10 seconds across three cycles, supporting high-throughput automated surface-mount manufacturing. This solderability is achieved without compromising ferrite or winding quality, thereby reducing the potential for process-induced failures and enabling tighter quality assurance during mass production.

From a design integration perspective, the combination of current handling, low DCR, and DC bias stability positions this device as an enabler of compact, high-frequency topologies with demanding transient requirements. The overlap of these capabilities reduces the need for derating, allowing designers to utilize the inductor close to its specified limits without excessive thermal or electrical margining. As observed in practical power delivery networks, selecting devices with these optimized traits consistently minimizes design iterations and expedites system qualification.

Ultimately, the IFSC1515AHER3R3M01 represents a balance of electrical robustness, thermal endurance, and manufacturability that addresses key bottlenecks in modern power hardware design, particularly where current density and efficiency dictate inductor selection. Device selection strategies grounded in real-world circuit constraints increasingly favor such well-optimized inductive components for next-generation energy conversion platforms.

Environmental Compliance and Reliability Considerations for IFSC1515AHER3R3M01

Environmental compliance forms an integral foundation for the IFSC1515AHER3R3M01’s suitability in modern electronic systems, governed by the escalating requirements of global sustainability initiatives and regulatory standards. The component maintains strict adherence to RoHS3 by eliminating hazardous substances such as lead, cadmium, and certain flame retardants, ensuring verifiable conformity during supply chain audits and pre-assembly checks. The halogen-free designation extends safe use in advanced, eco-focused equipment, significantly reducing potential release of toxic compounds under thermal stress or accidental incineration. Vishay’s “green” categorization further assures alignment with leading-edge eco-labeling practices, bolstering marketability for applications requiring a documented lifecycle impact analysis and facilitating selection during EHS (environmental, health, and safety) reviews.

At the materials engineering layer, the IFSC1515AHER3R3M01 presents unlimited Moisture Sensitivity Level (MSL 1), granting unparalleled flexibility in component handling, storage, and reflow soldering processes. This trait is critical in automated SMT lines, where unpredictable inventory durations may expose devices to fluctuating humidity before assembly. Components with true MSL 1 status resist moisture-induced degradation such as internal delamination or popcorning during soldering cycles. This reliability enabler minimizes need for intensive dry packing procedures and permits streamlined logistical workflows, particularly in high-mix, just-in-time manufacturing settings.

Mechanical robustness and thermal endurance in the IFSC1515AHER3R3M01 are engineered for deployment under strenuous electrical and environmental loads. The structural integrity of terminations and encapsulation maintains electrical connectivity through high-frequency vibration, shock, or thermal cycling typical of automotive, industrial automation, and mission-critical embedded systems. Thermal tolerance parameters, validated via accelerated life-testing and JEDEC-compliant protocols, equip designers to specify the inductor for circuits exposed to dynamic temperature gradients or sustained operating maxima—a pivotal reliability vector when deploying near power sources or within densely packed assemblies.

Practical layout considerations include the component’s predictable solder wetting behavior and resistance to board-level warpage during multiple reflow passes. These practical attributes reduce defect incidence and rework cycles, contributing to consistent yield across variable production environments. The IFSC1515AHER3R3M01’s synergy of environmental and reliability features aligns it closely with robust system design philosophies, where selecting parts is an investment not just in initial compliance but in sustained field performance and long-term operational assurance. Implicitly, advanced supply chains benefit from integrating components with transparent documentation and proven reliability—streamlining both technical onboarding and future sustainability reporting.

Typical Applications and Use Cases for IFSC1515AHER3R3M01

The IFSC1515AHER3R3M01 is an inductive component optimized for integration within a wide spectrum of modern electronics, particularly where board space and electromagnetic compatibility requirements converge. The device’s magnetic architecture delivers both high energy density and minimized core losses, yielding efficient performance across varied switching frequencies in DC/DC converter topologies. This underlying mechanism enables robust voltage regulation and ripple attenuation, which are essential attributes in power rails for LCD displays, advanced lighting modules, and sensor-rich embedded platforms.

Precision winding and material selection impart a low profile with reduced series resistance, supporting deployment in battery-driven architectures where strict power budgets and thermal constraints inform component choices. In tightly packed enclosures, the inductance stability across temperature and current swings allows reliable power delivery without compromising system longevity. This is essential in portable instrumentation and wearables, where every millimeter and microamp counts.

When incorporated upstream of sensitive ICs, the IFSC1515AHER3R3M01 acts as a strategic barrier against conducted and radiated noise, improving electromagnetic interference suppression networks. Its utility extends further in feedback-regulated switching regulators, supporting rapid transient response and consistent load handling in dynamic usage environments. The inductive profile is calibrated for minimal magnetic flux leakage, enabling close placement to high-speed digital traces without destabilizing data integrity—a core concern in embedded systems and FPGA development boards.

Experience reveals that optimizing the layout for minimal parasitic coupling and maintaining short conductor paths maximizes circuit performance. The component’s mechanical ruggedness simplifies assembly in vibration-prone environments, enhancing reliability for automotive submodules and portable diagnostic equipment. Leveraging the IFSC1515AHER3R3M01 in design iterations often reveals measurable improvements in energy conversion efficiency and reduced total EMI footprint, demonstrating its catalytic impact on product scalability and compliance.

A distinct advantage emerges in leveraging this inductor’s form factor for modular design, supporting swift prototyping cycles and facilitating platform-wide standardization. This accelerates integration in both high-volume consumer electronics and specialized industrial control systems, reinforcing system-level robustness while streamlining supply logistics. Ultimately, the IFSC1515AHER3R3M01 aligns with the current direction of densely integrated, EMI-conscious electronics, reflecting a synthesis of material science and practical design foresight.

Mechanical Dimensions and Handling Guidelines for IFSC1515AHER3R3M01

The IFSC1515AHER3R3M01 inductor demonstrates a compact 4.0mm x 4.0mm footprint combined with a low 1.8mm profile, ensuring efficient utilization of PCB real estate in miniaturized, high-density circuits. Such dimensional constraints have been optimized to support elevated design integration, particularly in RF, power conversion, and signal conditioning stages where board space is a critical parameter. The inductor’s mechanical outline minimizes top-side clearance requirements, promoting stacking and downstream component proximity, which directly benefits signal integrity and overall board performance.

From a processing perspective, the package construction employs structural materials that resist deformation and provide mechanical stability during standard lead-free reflow soldering cycles. Tolerance to peak reflow temperatures and compatibility with sequential soldering steps streamline assembly logistics, thus reducing defect rates in high-throughput environments. The robust encapsulation safeguards against common solder joint defects such as tombstoning or voids, preserving both electrical connectivity and structural integrity throughout the product lifecycle.

Thermal durability stands as a distinguishing characteristic, with the device accommodating extensive thermal cycling without inducing core degradation or mechanical stress failures. In continuous mass production scenarios, this resilience translates to reduced maintenance cycles and a lower risk of latent reliability failures, especially in mission-critical designs. Assemblers benefit from such reliability, as it allows for flexible production schedules without additional handling constraints.

Moreover, positional accuracy during automated placement is reinforced by flatness control and well-defined terminal geometry, reducing placement error and enhancing first-pass yield. The package is engineered to mitigate electrostatic discharge during handling, reducing susceptibility to electrical overstress—a key consideration in sensitive analog and power management domains.

Incorporating the IFSC1515AHER3R3M01 into advanced PCB layouts demonstrates that mechanical and handling guidelines extend beyond dimensioning; they actively influence manufacturability and operational longevity. Such an approach not only addresses immediate physical constraints but also embeds process-driven quality assurance mechanisms into the hardware design cycle, highlighting the value of selecting components engineered for both electrical and mechanical resilience. This establishes a robust foundation for platforms where repeatability and durability underpin competitive differentiation.

Potential Equivalent/Replacement Models for IFSC1515AHER3R3M01

When assessing equivalent or replacement models for the IFSC1515AHER3R3M01, close attention must be paid to the component’s core construction. Wirewound inductors with ferrite cores offer distinct advantages in high-frequency power supply designs, primarily due to their controlled core losses and stable inductance under load. Maintaining the nominal 3.3μH inductance is essential for circuit stability, particularly in synchronous buck converters or noise-sensitive analog front ends where deviation can directly alter response peaking or transient performance. Equally, current rating equivalence ensures the inductor sustains typical and inrush currents without premature saturation, which often reveals itself as an erratic regulator output or excessive core heating during operational qualification.

A reliable replacement demands precise EMI containment—necessitating the verification of core shielding effectiveness. Ferrite shielding, when engineered correctly, mitigates both conducted and radiated emissions, reducing cross-talk in multilayer PCBs and supporting compliance with increasingly stringent EMC directives. This attribute gains heightened significance in compact designs where board real estate limits keepout zones, leaving less margin for magnetic flux leakage. Comparing EMI signatures between candidate inductors under fast load transient conditions can provide practical validation beyond datasheet parameters, sometimes highlighting subtle design trade-offs undisclosed in standard documentation.

Package geometry and footprint must align with layout constraints, especially when reusing an established PCB. IFSC-1515AH series equivalents from Vishay Dale offer dimensional consistency, minimizing layout modifications. For second-source strategies, evaluating competing devices—such as those from Coilcraft, TDK, or Würth Elektronik—requires not just matching electrical metrics but also reviewing solderability, coplanarity, and automated assembly compatibility. Mechanical robustness, like solder-joint reliability under thermal cycling, is increasingly scrutinized during automotive and industrial design reviews due to escalating lifecycle requirements.

Beyond basic metrics like DCR and saturation current, in-system validation is critical. Slightly higher DCR may be tolerable in thermally unconstrained environments, but it is a limiting factor in tightly managed budgets where every milliohm counts toward increased efficiency. Localized temperature rise under maximum load can be instrumented using fine-gauge thermocouples micro-placed on the inductor body during power cycling, revealing performance consistency or potential derating needs.

Environmental compliance must not be overlooked. RoHS and halogen-free certifications, as well as heightened scrutiny for material origin in recent global supply chain audits, are now common evaluation points in AVL creation. Leveraging manufacturer-provided IMDS declarations streamlines material compliance sign-offs and expedites production ramp qualifications.

System-level integration often reveals attributes invisible at the component level. For example, while alternate models may nominally match electrical specification, batch variability in core material or winding process may manifest as audible noise under PWM excitation, critical in low-noise medical or consumer applications. Batch-to-batch consistency in Vishay Dale’s manufacturing or alternatives with proven process control thus warrants additional weighting during sourcing decisions.

The greatest optimization is realized not merely by static parameter matching but through the nuanced layering of regulatory, mechanical, and functional performance—which, when harmonized, produces a truly equivalent drop-in solution or, more strategically, a path for tailored design improvement. Inductors once seen simply as catalog commodities are now strategic enablers of differentiation in compact, efficient, and EMI-robust power conversion platforms.

Conclusion

The Vishay Dale IFSC1515AHER3R3M01 embodies several key engineering advances essential for power delivery in increasingly compact and high-performance electronic systems. Its shielded construction minimizes electromagnetic interference at the board and system level, allowing higher circuit density without compromising functional isolation or signal integrity. Low-profile encapsulation, achieved through precise winding and core integration, supports aggressive form factor reduction demanded by advanced wearables, IoT modules, and portable consumer devices, where vertical clearance and layout flexibility directly affect design viability.

Central to performance is its optimized ferrite core material, delivering high saturation current and minimal core loss even under heavy transient conditions. This enables stable operation in DC-DC converters, point-of-load regulators, and switching power supplies that require dependable energy storage and filtering. Close attention to winding geometry and terminal robustness enhances vibration tolerance and thermal cycling stability, decreasing risk of early-life failures in automotive or industrial settings exposed to mechanical stress and temperature extremes.

Efficiency management extends beyond low DC resistance; this model exhibits predictable behavior under rapid load changes, facilitating tighter output voltage regulation in high-frequency switching environments. Engineers deploying this inductor in multilayer PCB assemblies benefit from reduced coupling between adjacent traces, promoting system-wide EMI compliance without the need for cumbersome shielding strategies. Additionally, RoHS-compatible materials and lead-free terminations align with global environmental directives, streamlining product certifications and market access while reducing logistic complexities related to material restrictions.

From prototyping to volume production, the IFSC1515AHER3R3M01 demonstrates repeatable quality consistency, simplifying qualification cycles for teams striving for fast time-to-market. In practice, selection of this inductor often leads to improvements in overall converter efficiency, noise margin, and field reliability, particularly in sectors such as telecom infrastructure and medical instrumentation where continuous uptime and data integrity are paramount. Integration of this component in intelligent power management schemes brings measurable gains in system longevity and serviceability, reflecting a strategic move toward sustainable electronics design.

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Catalog

1. Product Overview: IFSC1515AHER3R3M01 Vishay Dale Fixed Inductor2. Key Features and Construction Details of IFSC1515AHER3R3M013. Electrical Specifications and Performance Characteristics of IFSC1515AHER3R3M014. Environmental Compliance and Reliability Considerations for IFSC1515AHER3R3M015. Typical Applications and Use Cases for IFSC1515AHER3R3M016. Mechanical Dimensions and Handling Guidelines for IFSC1515AHER3R3M017. Potential Equivalent/Replacement Models for IFSC1515AHER3R3M018. Conclusion

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Frequently Asked Questions (FAQ)

What are the key design-in risks when using the IFSC1515AHER3R3M01 in a high-current DC-DC converter for automotive applications?

When integrating the IFSC1515AHER3R3M01 into automotive-grade DC-DC converters, a primary risk is operating near the saturation current (Isat = 2.4A) under temperature extremes. At elevated ambient temperatures (approaching 125°C), core saturation can occur earlier due to thermal derating. To mitigate this, ensure peak transient currents stay below 2.0A to maintain inductance tolerance within ±20%. Also, verify PCB copper layout provides adequate thermal relief—use thermal vias under the ground pad to enhance power dissipation, as the 56mΩ DCR can lead to self-heating at sustained loads above 2.2A. Avoid tight spacing to adjacent heat sources due to its nonstandard 4.0mm x 4.0mm footprint which limits airflow.

How does the IFSC1515AHER3R3M01 compare to the Coilcraft XAL6060-3R3 in terms of thermal performance and EMI shielding for buck regulator designs?

The IFSC1515AHER3R3M01 offers lower DCR (56mΩ max vs. 68mΩ for XAL6060-3R3) and slightly better current rating (2.7A vs. 2.5A), making it more efficient in high-current, low-voltage rails such as those in FPGAs or processors. However, the Coilcraft part has superior shielding and a higher self-resonant frequency, reducing EMI concerns above 10MHz. In noise-sensitive applications (e.g., ADAS modules), the XAL6060-3R3 may be preferred. The IFSC1515AHER3R3M01’s compact 4.0mm x 4.0mm size gives layout advantage but requires careful attention to ground plane continuity to maintain shielding effectiveness and reduce flux leakage near sensitive traces.

Can the IFSC1515AHER3R3M01 be used as a drop-in replacement for the Murata LQMHPN3R3MR0 in PMIC circuits on space-constrained PCBs?

While both the IFSC1515AHER3R3M01 and LQMHPN3R3MR0 offer 3.3µH inductance and similar current ratings (2.7A vs. 2.6A), they are not direct footprint replacements—the Murata uses a 3.2mm x 2.5mm package vs. the 4.0mm x 4.0mm of the IFSC1515AHER3R3M01. Redesigning the PCB is necessary. Electrically, the Vishay inductor has lower DCR (56mΩ vs. 70mΩ), improving efficiency, but its larger size may interfere with adjacent BGA components or QFNs. Use the IFSC1515AHER3R3M01 only if board re-layout is feasible and thermal performance is prioritized over density.

What reliability issues should I watch for when using the IFSC1515AHER3R3M01 in industrial power supplies subject to thermal cycling?

The IFSC1515AHER3R3M01 is rated for -55°C to 125°C and RoHS3-compliant with MSL-1, making it suitable for harsh environments. However, in industrial systems with frequent power cycling, mismatched CTE between the nonstandard SMD package and PCB can induce solder joint fatigue over time. Mitigate this by using a serpentine trace design for thermal expansion relief and avoiding rigid copper fills directly under the inductor. Also, validate board-level drop and vibration testing if used in mobile industrial equipment. Monitor inductance drift over long-term operation—particularly after exposure to sustained currents above 2.3A where saturation begins to degrade core performance gradually.

How should I address PCB layout challenges with the IFSC1515AHER3R3M01 due to its nonstandard 4.0mm x 4.0mm SMD footprint?

The nonstandard footprint of the IFSC1515AHER3R3M01 requires custom land patterns—do not reuse JEDEC standards. Design the solder pads with a 0.3mm extension on all sides to ensure proper wetting and thermal relief. Keep switching node traces short and wide between the inductor and the IC to minimize EMI, and place it as close as possible to the regulator. Ensure the ground plane under the inductor is solid but thermally connected via multiple small vias to prevent tombstoning during reflow. Given its seated height of 1.9mm, verify mechanical clearance—especially when stacking shields or placing over connectors—and inspect stencil aperture for 3.5 mil (0.09mm) thickness to control solder volume and prevent component tilting.

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