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SWPA3010S470MT
Shenzhen Sunlord Electronics Co., Ltd.
FIXED IND 47UH 260MA 2.535OHM SM
25315 Pcs New Original In Stock
47 µH Shielded Drum Core, Wirewound Inductor 260 mA 2.535Ohm Max Nonstandard
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5.0 / 5.0
- (352 Ratings)
SWPA3010S470MT
Product Overview
9877684
DiGi Electronics Part Number
SWPA3010S470MT-DGManufacturer
Shenzhen Sunlord Electronics Co., Ltd.
SWPA3010S470MT
Description
FIXED IND 47UH 260MA 2.535OHM SMInventory
25315 Pcs New Original In Stock
47 µH Shielded Drum Core, Wirewound Inductor 260 mA 2.535Ohm Max Nonstandard
Quantity
Minimum 1
Minimum 1
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SWPA3010S470MT Technical Specifications
Category
Fixed Inductors
Packaging
Tape & Reel (TR)
Series
SWPA
Product Status
Active
Type
Drum Core, Wirewound
Material - Core
Ferrite
Inductance
47 µH
Tolerance
±20%
Current Rating (Amps)
260 mA
Current - Saturation (Isat)
220mA
Shielding
Shielded
DC Resistance (DCR)
2.535Ohm Max
Q @ Freq
-
Frequency - Self Resonant
18MHz
Ratings
-
Operating Temperature
-40°C ~ 125°C
Inductance Frequency - Test
100 kHz
Features
-
Mounting Type
Surface Mount
Package / Case
Nonstandard
Supplier Device Package
-
Size / Dimension
0.118" L x 0.118" W (3.00mm x 3.00mm)
Height - Seated (Max)
0.039" (1.00mm)
Datasheet & Documents
HTML Datasheet
SWPA3010S470MT-DG
Environmental & Export Classification
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
8504.50.8000
Additional Information
Other Names
3442-SWPA3010S470MTTR
Standard Package
2,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
믿고 구매하는 브랜드로, 항상 기대를 저버리지 않네요.
Dec 02, 2025
購入後も丁寧なフォローがあり、安心して次回も利用したいと思いました。
Dec 02, 2025
質の高い商品を幅広く取り扱っており、満足しています。
Dec 02, 2025
Reliable performance and affordable pricing—DiGi delivers consistently.
Dec 02, 2025
The logistics tracking features make it easy to plan for delivery times.
Dec 02, 2025
The platform was easy to navigate, even for first-time users.
Dec 02, 2025
DiGi Electronics consistently delivers high-quality products that exceed expectations.
Dec 02, 2025
They handle logistics with care, ensuring timely delivery at all times.
Dec 02, 2025
DiGi Electronics' fast shipping has been instrumental in helping me meet tight delivery schedules.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the SWPA3010S470MT in a high-frequency DC-DC converter above 5MHz?
When integrating the SWPA3010S470MT into a DC-DC converter operating above 5MHz, the primary risk is approaching its 18MHz self-resonant frequency (SRF), where inductive behavior diminishes and parasitic capacitance dominates. Operating near SRF can lead to reduced filtering effectiveness, unpredictable impedance, and increased EMI. To mitigate this, ensure your switching frequency is no higher than 1/3 to 1/5 of the SRF (ideally ≤3.6MHz). If your design requires >5MHz operation, consider lower-inductance alternatives or verify impedance characteristics with network analyzer data at your specific frequency. Derate performance margins if temperature or DC bias pushes the effective inductance lower.
Can the SWPA3010S470MT replace the Murata LQH3NPN470M53 in a space-constrained power rail design?
Yes, the SWPA3010S470MT can serve as a form-fit-function replacement for the Murata LQH3NPN470M53, as both are 47µH shielded wirewound SMD inductors in a 3.0mm x 3.0mm footprint with similar height (1.00mm max). However, compare saturation current: the SWPA3010S470MT has 220mA Isat vs. 260mA for the Murata. If your load experiences transient spikes, the Sunlord part may saturate earlier, increasing core losses and reducing efficiency. Verify under worst-case load transients and consider adding margin in current headroom. The higher DCR of the SWPA3010S470MT (2.535Ω max) also increases conduction losses compared to Murata's 2.0Ω max, impacting thermal performance in compact PCB layouts.
How does DC bias current affect the effective inductance of the SWPA3010S470MT in a buck regulator application?
The SWPA3010S470MT is rated for 220mA saturation current (Isat), defined as the point where inductance drops by 30%. Under DC bias in a buck converter, exceeding this current level causes core saturation, sharply reducing effective inductance and impairing energy storage. This can lead to increased ripple current, reduced efficiency, and potential instability in voltage regulation. Designers must ensure peak inductor current (average load plus ripple) stays below 220mA. Use Sunlord's DC bias curves if available, or perform empirical testing under actual operating conditions. For applications with variable loads, derate by at least 20% (stay below 175mA peak) to maintain reliable performance.
What thermal and reliability concerns should be considered when operating the SWPA3010S470MT near its 125°C maximum temperature?
Operating the SWPA3010S470MT near 125°C requires careful thermal management due to combined ambient heat and self-heating from I²R losses via its 2.535Ω max DCR. At full rated current (260mA RMS), resistive power loss can reach ~170mW, raising internal temperature. In enclosed or high-ambient environments, this can accelerate insulation aging and degrade core properties over time. Ensure adequate PCB copper pour (but avoid excessive thermal pads that hinder reflow). Monitor hotspot temperature with IR imaging during prototyping. Stay within the 260mA current rating only if ambient is ≤85°C; otherwise derate current linearly. The MSL-1 rating simplifies handling, but long-term reliability requires staying within combined thermal-electrical stress limits.
Is the SWPA3010S470MT suitable for automotive-grade power supplies given its -40°C to 125°C temperature range?
While the SWPA3010S470MT specifies an operating temperature range of -40°C to 125°C that overlaps with some automotive requirements, it is not explicitly AEC-Q200 qualified. For under-hood or safety-critical applications (e.g., ADAS, engine control), this lack of qualification poses reliability and certification risks. Use in non-critical, cabin-based systems (e.g., infotainment, USB charging) may be acceptable with thorough stress testing. Consider AEC-Q200 compliant alternatives like the Taiyo Yuden MLB1608S470TF or TDK VLS201610ET-470M for production automotive designs. Ensure local voltage regulation stability across temperature, as ferrite core permeability and DCR drift can impact loop response in sensitive SMPS designs using the SWPA3010S470MT.
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SWPA3010S470MT CAD Models
Shenzhen Sunlord Electronics Co., Ltd. SWPA3010S470MT PCB symbols & footprints
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