Taiwan Semiconductor Corporation P4SMA13
- Part No.:
- P4SMA13
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA13.pdf
- Description:
- 400W, 13V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:

- Shipping:

Inventory:9,692
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Product details
Overview
P4SMA13 from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for overvoltage protection in DC power rails and signal lines. It features a 11.7–14.3 V breakdown voltage (VBR), 10.5 V working stand-off voltage (VWM), 19.0 V clamping voltage (VC) at 22 A peak pulse current, and 400 W peak pulse power rating under 10/1000 µs waveform - deployed in switching mode power supplies and on-board DC/DC converters.
For engineers reviewing the P4SMA13 datasheet, P4SMA13 pinout, P4SMA13 application, or P4SMA13 equivalent, key selection criteria include its DO-214AC (SMA) package compatibility, low leakage (<1 µA at VWM), fast sub-1 ps response, and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive transients.
Technical Context
The P4SMA13 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its specified VBR range (11.7–14.3 V at 1.0 mA test current). Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at 10.5 V), while the DO-214AC package supports automated placement and meets UL 94V-0 flammability standards.
It delivers 400 W peak pulse power handling per 10/1000 µs waveform, with clamping voltage limited to 19.0 V at 22 A impulse current. Thermal performance is rated for junction temperatures from –55 °C to +150 °C, and it satisfies JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT | 11.7–14.3 V at 1.0 mA - defines reliable avalanche initiation threshold for overvoltage triggering |
| VWM | 10.5 V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPPM | 19.0 V at 22 A (10/1000 µs) - limits protected circuit voltage during surge events |
| PPPM | 400 W - peak transient energy absorption capability under standardized surge waveform |
| IR @ VWM | <1 µA - ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ Range | –55 °C to +150 °C - enables use in industrial and under-hood automotive environments |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-diode configuration with cathode band marking. Matte tin-plated leads comply with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND) in unidirectional TVS configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., VIN); avalanche conduction occurs here during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling |
| Sub-1 ps response time | Enables suppression of fast ESD and EFT transients before downstream ICs are damaged |
| ISO 7637-2 compliance | Validated for automotive load-dump and supply-line transient immunity (Pulse 1/2a/2b/3a/3b) |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS Directive for environmentally compliant manufacturing |
Applications
| Switching Mode Power Supply (SMPS) | On-board DC/DC Converter |
|---|---|
Use Scenario: Protection of primary-side MOSFET gate drivers and secondary-side rectifier inputs against switching-induced voltage spikes and coupling transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed across input/output rails to limit transient overvoltage before it reaches control ICs or power switches. Use Value: Clamps surges to ≤19.0 V while absorbing up to 400 W, preventing latch-up or gate oxide damage in 12–24 V SMPS designs. | Use Scenario: Safeguarding point-of-load (POL) converters in telecom and server boards exposed to board-level ESD and hot-swap transients. IC Role / Device Role / Timing Role: Standoff-rated (10.5 V) TVS placed at converter input to shunt fast-rising transients before regulation stage. Use Value: Sub-1 µA leakage preserves efficiency in low-power POLs; DO-214AC footprint enables compact layout near sensitive buck controller pins. |
| Lighting Application | Adapters |
Use Scenario: Overvoltage protection in LED driver modules subjected to lightning-induced surges on AC mains or 24 V DC input lines. IC Role / Device Role / Timing Role: Primary-side transient suppressor between bridge rectifier output and bulk capacitor. Use Value: 150 °C max junction temperature supports operation in enclosed, thermally constrained LED housings without derating. | Use Scenario: Input-stage protection in wall-mounted AC/DC adapters for consumer electronics, guarding against line surges and plug-in transients. IC Role / Device Role / Timing Role: Unidirectional TVS mounted across secondary-side DC output to prevent overvoltage damage to connected devices. Use Value: 10.5 V VWM aligns with common 12 V adapter outputs; 19.0 V VC ensures safe margin below typical USB-PD or legacy device absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A (Bourns) | DO-214AA (SMB) package; 13.0–14.4 V VBR; 20.9 V VC at 19.1 A; same 400 W rating | Larger footprint (SMB vs SMA) requires PCB layout change; higher VC increases protected circuit stress | Select when higher surge current margin or existing SMB footprint is prioritized over space-constrained layouts |
| 1.5SMC13A (ON Semiconductor) | DO-214AB (SMC) package; 13.0–14.4 V VBR; 21.5 V VC at 18.6 A; 1500 W rating (10/1000 µs) | Higher power rating but larger SMC package; not drop-in compatible due to size and thermal mass differences | Choose for systems requiring higher single-pulse robustness where board area permits larger SMC footprint |
Compared with SMBJ13A and 1.5SMC13A, the P4SMA13 offers the smallest surface-mount footprint (DO-214AC) among 400 W TVS diodes at this voltage grade, enabling dense power rail protection without sacrificing clamping performance or thermal reliability.
Availability
P4SMA13 is available at Aetrix Electronics and suitable for switching mode power supplies, on-board DC/DC converters, and lighting applications requiring stable component supply, consistent parametric performance, and full traceability.
Supply support for P4SMA13 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power management, protection, and signal conditioning components.
The P4SMA13 belongs to TSC's P4SMAxx series of surface-mount TVS diodes, engineered for high-reliability transient suppression in automotive, industrial, and consumer power systems where space, leakage, and surge immunity are critical.
FAQ
What is the breakdown voltage range of the P4SMA13?
The P4SMA13 has a guaranteed breakdown voltage (VBR) range of 11.7 V to 14.3 V when tested at 1.0 mA DC current, per the manufacturer's electrical specifications. This range ensures consistent avalanche triggering across production lots and supports design margining for overvoltage protection thresholds in 12 V systems. The P4SMA13 maintains this specification across its qualified temperature range (–55 °C to +150 °C).
Is the P4SMA13 unidirectional or bidirectional?
The P4SMA13 is a unidirectional TVS diode, indicated by the absence of "C" or "CA" suffix and confirmed by its cathode-band marking and single-diode DO-214AC configuration. It conducts only in reverse bias above VBR, making it suitable for DC rail protection where polarity is fixed. For bidirectional protection, engineers must select the P4SMA13C variant instead.
What is the clamping voltage of the P4SMA13 under surge conditions?
The P4SMA13 clamps to a maximum of 19.0 V when subjected to a 22 A peak impulse current with a 10/1000 µs waveform - the standard test condition for 400 W TVS devices. This VC value represents the upper voltage limit imposed on the protected circuit during transient events, directly informing system-level overvoltage margin analysis. The P4SMA13 achieves this while maintaining <1 µA leakage at its 10.5 V working stand-off voltage.
Does the P4SMA13 meet automotive transient standards?
Yes, the P4SMA13 meets ISO 7637-2 requirements for automotive electrical disturbances, including Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling and ignition noise). This compliance is explicitly stated in the manufacturer's datasheet and validated through standardized testing, confirming its suitability for 12 V vehicle subsystems such as body control modules and infotainment power supplies.
What package type does the P4SMA13 use, and is it RoHS-compliant?
The P4SMA13 uses the DO-214AC (SMA) surface-mount package, featuring matte tin-plated leads, UL 94V-0 molding compound, and moisture sensitivity level 1 per J-STD-020. It is fully RoHS-compliant and halogen-free per IEC 61249-2-21. This package enables automated placement and reflow soldering while maintaining thermal performance up to 150 °C junction temperature - critical for the P4SMA13's reliability in high-density power designs.
P4SMA13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10.5V
- Voltage - Breakdown (Min):
- 11.7V
- Voltage - Clamping (Max) @ Ipp:
- 19V
- Current - Peak Pulse (10/1000µs):
- 22A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA13 FAQ
1.How can I place an order for P4SMA13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA13 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P4SMA13 reliable?
The price and inventory of P4SMA13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA13 is usually 5 days.
3.What payment methods are accepted for P4SMA13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA13?
P4SMA13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA13 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P4SMA13?
For technical support, including P4SMA13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA13 requirements.
6.How does Aetrix verify that P4SMA13 is sourced from the original manufacturer or authorized distributors?
All P4SMA13 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P4SMA13 meets industry standards.
7.What is the process for return or replacement of P4SMA13?
All P4SMA13 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA13, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P4SMA13 part is unused and in its original packaging.
Return procedure for P4SMA13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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