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P4SMA36A
NextGen Components
TVS Diode 400W 36V UNI SMA
30431 Pcs New Original In Stock
49.9V Clamp Ipp Tvs Diode Surface Mount DO-214AC, SMA
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Minimum 1
5.0 / 5.0
- (304 Ratings)
P4SMA36A
Product Overview
2052483
DiGi Electronics Part Number
P4SMA36A-DGManufacturer
NextGen Components
P4SMA36A
Description
TVS Diode 400W 36V UNI SMAInventory
30431 Pcs New Original In Stock
49.9V Clamp Ipp Tvs Diode Surface Mount DO-214AC, SMA
Quantity
Minimum 1
Minimum 1
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P4SMA36A Technical Specifications
Category
Transient Voltage Suppressors (TVS), TVS Diodes
Packaging
-
Series
SMA
Product Status
Active
Type
Zener
Unidirectional Channels
1
Voltage - Reverse Standoff (Typ)
30.8V
Voltage - Breakdown (Min)
34.2V
Voltage - Clamping (Max) @ Ipp
49.9V
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
P4SMA36A-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-P4SMA36ATR
Standard Package
5,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
Das Team bei DiGi Electronics ist super freundlich und sorgt dafür, dass man sich beim Einkaufen wohlfühlt.
Dec 02, 2025
DiGi Electronics ensures a hassle-free shopping experience through stable delivery.
Dec 02, 2025
Affordable prices combined with prompt shipping make DiGi Electronics my go-to for electronic toys.
Dec 02, 2025
I received my order earlier than expected, and the product quality exceeded my expectations.
Dec 02, 2025
Customer reviews and ratings are easy to find, enhancing my confidence in purchases.
Dec 02, 2025
The online shopping process is smooth, secure, and enjoyable.
Dec 02, 2025
Every purchase confirms their dedication to consistent quality and transparent prices.
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Frequently Asked Questions (FAQ)
Can the P4SMA36A be used for USB 3.0 data line protection given its clamping voltage of 49.9V?
The P4SMA36A is not recommended for USB 3.0 data line protection due to its high clamping voltage of 49.9V at Ipp. USB 3.0 signal lines typically operate at 1V differential and are intolerant to voltages above 5V, so using the P4SMA36A poses a significant risk of damaging downstream ICs during transient events. For USB 3.0, consider lower-capacitance, low-clamp TVS diodes like the SMF05C or SP3014BAH-L from STMicroelectronics, specifically designed for high-speed data lines with clamping voltages under 10V.
How does the P4SMA36A compare to the Littelfuse SMAJ36A in terms of surge robustness and interchangeability?
The P4SMA36A and SMAJ36A from Littelfuse have similar electrical ratings—both are 400W, unidirectional SMA TVS diodes with a 30.8V standoff and 49.9V max clamping voltage—making them generally interchangeable in most designs. However, the Littelfuse SMAJ36A has stronger documented surge reliability (IEC 61000-4-5) and longer production history, which may reduce supply chain and field-failure risks in mission-critical applications. When replacing SMAJ36A with P4SMA36A, verify transient robustness testing under your specific surge conditions and ensure equivalent thermal performance due to potential differences in thermal resistance despite identical DO-214AC packaging.
What PCB layout practices should be followed when integrating the P4SMA36A for effective transient suppression in power rails?
To maximize the effectiveness of the P4SMA36A in power rail protection, minimize trace inductance by placing the device as close as possible to the entry point of the threat (e.g., connector or cable input). Use short, wide traces to both the protected line and ground, and connect the ground pad to a solid low-impedance ground plane with multiple vias near the SMA footprint. Avoid daisy-chaining the P4SMA36A with other components in the fault path, as added inductance can allow voltage overshoot beyond the 49.9V clamping level, compromising downstream ICs.
Is the P4SMA36A suitable for automotive load dump protection in 24V systems?
The P4SMA36A is not suitable for automotive load dump protection in 24V systems, despite its 30.8V reverse standoff voltage. Load dump transients can reach 40V to 60V for hundreds of milliseconds, and the P4SMA36A, rated for only 400W peak pulse power with no specified energy handling for extended surges, risks thermal failure. Use higher-energy TVS diodes or hybrid protection circuits with series impedance for load dump; components like the SMA6J36A (600W) or dedicated transient blocking units (TBUs) are more appropriate and robust for this application.
What are the reliability risks of using P4SMA36A in high-temperature environments near its 150°C TJ limit?
Operating the P4SMA36A near its maximum junction temperature of 150°C increases long-term degradation risks, particularly due to accelerated stress on the wire bonds and potential electromigration under repeated transient events. Even with MSL 1 (unlimited moisture resistance), prolonged high-temperature operation reduces surge life expectancy. To mitigate risk, design for thermal margin by ensuring low-power dissipation during normal operation, use adequate copper pour for heatsinking, and derate peak pulse power by at least 20–30% in environments above 100°C ambient to preserve reliability.
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.
P4SMA36A CAD Models
NextGen Components P4SMA36A PCB symbols & footprints
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