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P4SMA13A
NextGen Components
TVS Diode 400W 13V UNI SMA
10306 Pcs New Original In Stock
18.2V Clamp Ipp Tvs Diode Surface Mount DO-214AC, SMA
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5.0 / 5.0
- (103 Ratings)
P4SMA13A
Product Overview
2051773
DiGi Electronics Part Number
P4SMA13A-DGManufacturer
NextGen Components
P4SMA13A
Description
TVS Diode 400W 13V UNI SMAInventory
10306 Pcs New Original In Stock
18.2V Clamp Ipp Tvs Diode Surface Mount DO-214AC, SMA
Quantity
Minimum 1
Minimum 1
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P4SMA13A Technical Specifications
Category
Transient Voltage Suppressors (TVS), TVS Diodes
Packaging
Tape & Reel (TR)
Series
SMA
Product Status
Active
Type
Zener
Unidirectional Channels
1
Voltage - Reverse Standoff (Typ)
11.1V
Voltage - Breakdown (Min)
12.4V
Voltage - Clamping (Max) @ Ipp
18.2V
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
P4SMA13A-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-P4SMA13ATR
Standard Package
5,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
產品設計精良，品質一流，加上快速的售後服務，完全滿足我的需求。
Dec 02, 2025
DiGi Electronicsは品質管理がしっかりしており、いつも期待以上のものが届きます。
Dec 02, 2025
The shopping experience with DiGi Electronics was seamless and enjoyable, thanks to their consistent product quality.
Dec 02, 2025
DiGi Electronics' packaging not only safeguarded the product perfectly but also reflected their dedication to aesthetic excellence.
Dec 02, 2025
Their post-purchase follow-up was reassuring, showing genuine care for customer satisfaction beyond the sale.
Dec 02, 2025
Their support ensures I maximize the value of my investment, thanks to their affordability.
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Frequently Asked Questions (FAQ)
Can the P4SMA13A TVS diode safely replace a SMAJ13A in a 12V automotive power rail protection circuit, and what are the key risks to evaluate?
Yes, the P4SMA13A can generally replace the SMAJ13A due to similar breakdown (12.4V min vs. 12.5V min) and clamping voltages (18.2V @ Ipp), but critical differences exist: the P4SMA13A has a lower peak pulse power rating (400W vs. 400W–600W typical for SMAJ series under 10/1000μs). In high-energy transients like load dump (ISO 7637-2), this may lead to premature failure. Always validate with actual transient energy calculations and consider derating; if your design exceeds 400W under expected surge conditions, opt for a higher-power alternative like the SMBJ13A (600W) instead.
What layout and PCB design practices are essential when using the P4SMA13A for protecting a sensitive 12V microcontroller input from ESD and inductive spikes?
Place the P4SMA13A as close as possible to the connector or entry point of the signal/power line—ideally within 5mm—to minimize inductance in the protection path. Use short, wide traces (≥20 mil) to the ground plane with multiple vias to reduce impedance. Avoid stubs or loops in the grounding path. Ensure the ground connection ties directly to the system’s low-impedance ground plane, not through a narrow trace. Without proper layout, parasitic inductance can cause voltage overshoot beyond the 18.2V clamp, risking damage to downstream ICs despite the TVS being present.
Is the P4SMA13A suitable for bidirectional voltage spike protection in a single-supply 12V industrial sensor interface, or does its unidirectional nature introduce risks?
No—the P4SMA13A is unidirectional and only clamps positive transients above 12.4V; negative voltage spikes (e.g., from inductive kickback or ground bounce) will not be suppressed and can damage sensitive circuitry. For bidirectional protection in such applications, use a bidirectional TVS like the P4SMA13CA (same package and power rating but symmetric clamping) or pair two unidirectional diodes back-to-back. Relying solely on the P4SMA13A in a bidirectional threat environment risks latent failures during negative transients, especially in long-wire sensor installations.
How does the P4SMA13A’s operating temperature range (-50°C to 150°C) impact its reliability in outdoor telecom equipment exposed to thermal cycling?
While the P4SMA13A’s -50°C to 150°C junction rating appears robust, sustained operation near extremes—especially repeated cycling between cold startup and high ambient loads—can accelerate fatigue at the die-attach and wire-bond interfaces. In outdoor telecom enclosures with poor thermal management, localized heating during surge events may push TJ beyond safe limits if duty cycles are high. Mitigate this by ensuring adequate copper pour for heat spreading, avoiding placement near other heat sources, and derating power handling by ≥20% for long-term reliability. MSL 1 rating helps, but mechanical stress from CTE mismatch remains a concern over time.
Can I parallel two P4SMA13A diodes to increase surge current handling in a high-risk lightning-exposed RS-485 port, and what are the pitfalls?
Paralleling P4SMA13A diodes is not recommended due to inherent manufacturing variations in breakdown voltage (±5% typical), which cause uneven current sharing during fast transients. The diode with slightly lower Vbr will conduct first and absorb disproportionate surge energy, leading to thermal runaway and premature failure of one device—then overloading the second. Instead, select a single higher-power TVS in a larger package (e.g., SMBJ13A or P6KE13A) rated for the total required surge current. If space constraints prevent upsizing, use a dedicated multi-stage protection circuit with series impedance and a coordinated clamp hierarchy to avoid relying on paralleled TVS diodes.
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.
P4SMA13A CAD Models
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