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P4SMA530A
NextGen Components
TVS Diode 400W 530V UNI SMA
24008 Pcs New Original In Stock
725V Clamp Ipp Tvs Diode Surface Mount DO-214AC, SMA
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5.0 / 5.0
- (396 Ratings)
P4SMA530A
Product Overview
2054602
DiGi Electronics Part Number
P4SMA530A-DGManufacturer
NextGen Components
P4SMA530A
Description
TVS Diode 400W 530V UNI SMAInventory
24008 Pcs New Original In Stock
725V Clamp Ipp Tvs Diode Surface Mount DO-214AC, SMA
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
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P4SMA530A Technical Specifications
Category
Transient Voltage Suppressors (TVS), TVS Diodes
Packaging
-
Series
SMA
Product Status
Active
Type
Zener
Unidirectional Channels
1
Voltage - Reverse Standoff (Typ)
451V
Voltage - Breakdown (Min)
503.5V
Voltage - Clamping (Max) @ Ipp
725V
Power - Peak Pulse
400W
Power Line Protection
No
Applications
General Purpose
Operating Temperature
-50°C ~ 150°C (TJ)
Mounting Type
Surface Mount
Package / Case
DO-214AC, SMA
Supplier Device Package
DO-214AC, SMA
Datasheet & Documents
HTML Datasheet
P4SMA530A-DG
Environmental & Export Classification
RoHS Status
RoHS Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8541.10.0080
Additional Information
Other Names
3372-P4SMA530ATR
Standard Package
5,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
DiGi Electronics在產品質量方面真的非常用心，所有細節都做到最好，令人滿意。
Dec 02, 2025
Die Produkte von DiGi Electronics sind äußerst zuverlässig und langlebig.
Dec 02, 2025
Their support staff listens carefully and offers helpful solutions.
Dec 02, 2025
The team handled my concerns professionally, reinforcing my confidence in their brand.
Dec 02, 2025
DiGi Electronics employs innovative packaging solutions to enhance safety.
Dec 02, 2025
Quick dispatch, friendly support, and seamless communication—excellent service.
Dec 02, 2025
Their expertise and care make every purchase a positive experience.
Dec 02, 2025
Quick response times and speedy delivery make my experience outstanding.
Dec 02, 2025
Budget-friendly pricing makes DiGi Electronics a top choice for tech enthusiasts.
Dec 02, 2025
My order was delivered quickly, and the packaging kept everything safe and sound.
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Frequently Asked Questions (FAQ)
Can the P4SMA530A be used for Ethernet line protection in a PoE application, and what are the key design risks to consider?
The P4SMA530A is not recommended for direct Ethernet line protection in PoE applications due to its high reverse standoff voltage (451V) and clamping voltage (725V), which significantly exceed typical Ethernet signal levels (e.g., 3.3V or 5V). Using the P4SMA530A in low-voltage signal lines risks damaging downstream ICs during transient events because the clamping occurs at a level that can exceed the breakdown ratings of Ethernet PHYs or switches. For PoE applications, consider lower-voltage TVS diodes like the SP3014-04UTG or SRV05-4 for 5V or 3.3V lines. The P4SMA530A is better suited for higher-voltage general-purpose protection where operating voltages approach its standoff range, such as AC power monitoring circuits or industrial I/O above 400V.
How does the P4SMA530A compare to the SMAJ530A in terms of clamping performance and interchangeability?
The P4SMA530A and SMAJ530A have nearly identical electrical specifications (451V standoff, 503.5V min breakdown, 725V max clamp), making them functionally interchangeable in most designs. However, the P4SMA530A is marketed by NextGen Components and may have slight process or sourcing differences compared to the original SMAJ530A from brands like Littelfuse or Vishay. When replacing SMAJ530A with P4SMA530A, verify long-term reliability and surge robustness via qualification testing under expected transient stress (e.g., IEC 61000-4-5). Also ensure footprint compatibility, as both use DO-214AC (SMA) package but may differ in solder pad layout or moisture sensitivity handling.
What are the PCB layout best practices for maximizing surge protection performance with the P4SMA530A in a 480VAC transient environment?
To maximize surge performance with the P4SMA530A in high-voltage transient environments like 480VAC systems, minimize trace inductance between the P4SMA530A and protected nodes by placing it as close as possible to the entry point of the threat (e.g., terminal block or connector). Use wide, short traces and connect the P4SMA530A between line and ground with a low-impedance ground plane. Ensure creepage and clearance distances exceed 6mm for 480VAC per IPC-2221 to avoid arcing. Also incorporate series impedance (e.g., a small resistor or inductor) upstream of the P4SMA530A to limit peak current and prevent overstress during multikiloamp surges that exceed the 400W rating.
What reliability concerns should be considered when using the P4SMA530A in long-life industrial equipment exposed to repetitive transients?
When deploying the P4SMA530A in industrial environments with repetitive transients, the primary reliability risk is cumulative degradation from sub-clamping-level surges or partial discharges over time. Although the P4SMA530A is rated for 400W peak pulse power, repeated exposure to smaller but frequent surges (e.g., from motor switching or contact bounce) can slowly degrade the junction. To mitigate this, monitor transient frequency and energy levels; consider upgrading to a higher pulse rating (e.g., P6SMB530A at 600W) or implementing a staged protection scheme with a gas discharge tube upstream of the P4SMA530A to shunt the bulk energy. Also verify that operating temperature remains below 125°C under sustained load to avoid accelerated aging.
Is the P4SMA530A suitable as a replacement for a failed MOV in a power supply input stage, and what trade-offs should be evaluated?
The P4SMA530A can serve as a temporary or secondary protection device in place of a failed MOV in a power supply input stage, but it is not a direct replacement due to key differences in energy handling. MOVs typically absorb much higher surge energies (e.g., 100–1000J) compared to the P4SMA530A’s 400W peak pulse rating, which limits its single-event energy capacity. Using only the P4SMA530A on AC mains risks immediate failure during large surges like lightning strikes. If substituting, combine the P4SMA530A with upstream current limiting (e.g., a fuse and series thermistor) and consider it for overvoltage clamping during fast transients, not sustained overvoltages. For reliable primary protection, use a properly rated MOV or hybrid module; reserve the P4SMA530A for supplementary, fast-response clamping in coordination with other protection elements.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
P4SMA530A CAD Models
NextGen Components P4SMA530A PCB symbols & footprints
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