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Taiwan Semiconductor Corporation P4SMA10
- Part No.:
- P4SMA10
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA10.pdf
- Description:
- 400W, 10V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:5,348
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Product details
Overview
P4SMA10 from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for overvoltage protection in DC power lines and signal paths. It features a 9.0–11.0 V breakdown voltage (VBR), 8.10 V working stand-off voltage (VWM), 15.0 V clamping voltage (VC) at 28.0 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 P4SMA10 datasheet, P4SMA10 pinout, P4SMA10 application, or P4SMA10 equivalent, key selection criteria include its DO-214AC (SMA) package compatibility, low 10 µA maximum reverse leakage at VWM, fast sub-1 ps response time, and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive electronics robustness.
Technical Context
The P4SMA10 operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve stable breakdown behavior and low leakage. Its clamping action begins at ≥9.0 V (VBR min) and limits transients to ≤15.0 V (VC) while conducting up to 28.0 A under standardized 10/1000 µs surge conditions.
It is rated for continuous operation from –55 °C to +150 °C junction temperature, with moisture sensitivity level (MSL) 1 per J-STD-020 and RoHS/halogen-free compliance. The device meets UL 94V-0 flammability requirements and passes JESD201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1.0 mA | 9.0–11.0 V: Ensures reliable turn-on above normal operating voltage while avoiding false triggering |
| VWM | 8.10 V: Maximum continuous reverse voltage before significant leakage begins |
| VC @ IPPM = 28.0 A | 15.0 V: Clamped voltage during 400 W transient - defines protected circuit's worst-case overvoltage |
| IR @ VWM | ≤10 µA: Low leakage preserves efficiency in battery-powered or high-impedance circuits |
| PPPM | 400 W (10/1000 µs): Sustains automotive load dump and ESD-like surges without failure |
| TJ max | +150 °C: Enables use in thermally constrained PCB layouts near power components |
| Package | DO-214AC (SMA): Standardized SMT footprint compatible with automated placement and reflow |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking; two-terminal unidirectional configuration. Matte tin-plated leads meet J-STD-002 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side | Connected to protected line (e.g., +12 V rail); conducts surge current toward ground when clamped |
| Cathode | Ground reference side | Connected to system ground; polarity mark (band) ensures correct orientation during assembly |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances long-term reliability and stability of VBR under thermal cycling and humidity stress |
| Response time < 1.0 ps | Clamps ESD and fast transients before sensitive ICs experience overstress |
| ISO 7637-2 compliant | Validated for automotive Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (load dump simulation) |
| MSL Level 1 | Unlimited floor life - no baking required prior to reflow soldering |
| UL 94V-0 molding compound | Self-extinguishing encapsulation meets safety standards for enclosed power systems |
Applications
| Switching Mode Power Supply (SMPS) | On-Board DC/DC Converter |
|---|---|
Use Scenario: Protects primary-side controller ICs and secondary-side rectifiers from input voltage spikes caused by transformer leakage inductance or MOSFET switching. IC Role / Device Role: Unidirectional TVS placed across input capacitor or between gate-driver supply and ground. Use Value: Limits transient overshoot to ≤15.0 V, preventing latch-up or gate oxide damage in PWM controllers and synchronous rectifiers. | Use Scenario: Shields point-of-load regulators and microcontroller power rails in automotive infotainment modules against coupled noise from nearby CAN/LIN buses. IC Role / Device Role: Mounted at DC/DC converter input to clamp load-dump-induced surges per ISO 7637-2 Pulse 2b. Use Value: Withstands 400 W pulses without degradation, maintaining regulation integrity during engine cranking or alternator field collapse. |
| Lighting Application | Adapter Protection |
Use Scenario: Safeguards LED driver ICs and current-sense resistors in automotive headlamp modules exposed to battery reversal and jump-start transients. IC Role / Device Role: Installed between battery feed and buck controller input, oriented anode-to-battery, cathode-to-ground. Use Value: 8.10 V VWM allows operation across 12 V nominal systems while blocking reverse polarity up to –15 V. | Use Scenario: Prevents damage to AC/DC adapter output stages due to lightning-induced surges on connected USB-C or barrel-jack outputs. IC Role / Device Role: Placed across output terminals to shunt surge energy before reaching downstream USB PD controllers or linear regulators. Use Value: 10 µA max leakage at 8.10 V avoids standby current penalty in energy-efficient adapters meeting DOE Level VI. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | 600 W rating, 10.0–11.1 V VBR, DO-214AA (SMB) package - larger footprint, higher surge capacity | Better suited for industrial 24 V systems requiring >400 W margin; not drop-in due to different pad layout | Select SMBJ10A only if board space allows SMB footprint and higher peak power is required. |
| 1.5SMC10A | 1500 W rating, 10.0–11.1 V VBR, DO-214AB (SMC) package - significantly larger, higher IPPM (123 A) | Targeted at heavy-duty surge environments (e.g., telecom power entry); incompatible with SMA land pattern | Choose 1.5SMC10A only for front-end AC/DC or PoE injectors where PCB area and thermal mass support SMC mounting. |
Compared with P4SMA10, SMBJ10A offers higher surge margin in same voltage class but requires PCB redesign, while 1.5SMC10A delivers threefold power handling at the cost of footprint and assembly compatibility - P4SMA10 remains optimal for space-constrained 12 V DC/DC and adapter outputs.
Availability
P4SMA10 is available at Aetrix Electronics and suitable for switching mode power supplies, on-board DC/DC converters, and lighting applications requiring stable component supply with full traceability and lifecycle management.
Supply support for P4SMA10 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for industrial and automotive markets.
The P4SMA series is part of TSC's surface-mount TVS portfolio engineered specifically for high-reliability transient suppression in compact, automated-assembly environments - emphasizing MSL-1 handling, ISO 7637-2 compliance, and tight VBR tolerances.
FAQ
What is the breakdown voltage range of the P4SMA10?
The P4SMA10 has a specified breakdown voltage (VBR) range of 9.0 V to 11.0 V at a test current of 1.0 mA, measured per ANSI/IEEE C62.35. This range ensures consistent clamping behavior across production lots while accommodating thermal drift and manufacturing variance - critical for predictable protection in 12 V automotive and industrial systems where the P4SMA10 is commonly deployed.
Is the P4SMA10 unidirectional or bidirectional?
The P4SMA10 is a unidirectional TVS diode, indicated by the absence of "C" or "CA" suffix and confirmed by its single cathode band marking. It protects against positive-going transients only - reverse voltage beyond –15 V may cause breakdown. For bidirectional protection in AC-coupled or polarity-agnostic circuits, engineers must select P4SMA10C or P4SMA10CA instead of the standard P4SMA10.
What is the maximum clamping voltage of the P4SMA10 under surge conditions?
The P4SMA10 exhibits a maximum clamping voltage (VC) of 15.0 V when subjected to a 10/1000 µs waveform with a peak pulse current (IPPM) of 28.0 A. This value defines the upper voltage limit imposed on protected circuitry during transient events - enabling safe operation of 12 V-rated ICs such as microcontrollers, gate drivers, and voltage references when the P4SMA10 is correctly applied.
Does the P4SMA10 meet automotive surge immunity standards?
Yes, the P4SMA10 meets ISO 7637-2 requirements for Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnection), and Pulse 3a/3b (capacitive coupling), making it suitable for automotive power electronics. Its 400 W peak pulse rating, low leakage, and MSL Level 1 packaging ensure robust performance in vehicle ECUs, body control modules, and lighting systems where the P4SMA10 is routinely specified.
What is the package type and lead finish of the P4SMA10?
The P4SMA10 uses the DO-214AC (SMA) surface-mount package with matte tin-plated leads that comply with J-STD-002 for solderability. Its compact 2.5 × 4.5 mm outline supports high-density PCB layouts, and the MSL Level 1 rating allows indefinite storage without baking - essential for just-in-time manufacturing of consumer adapters and lighting products using the P4SMA10.
P4SMA10 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):
- 8.1V
- Voltage - Breakdown (Min):
- 9V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 28A
- 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)
P4SMA10 FAQ
1.How can I place an order for P4SMA10 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA10 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 P4SMA10 reliable?
The price and inventory of P4SMA10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA10 is usually 5 days.
3.What payment methods are accepted for P4SMA10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA10?
P4SMA10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA10 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 P4SMA10?
For technical support, including P4SMA10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA10 requirements.
6.How does Aetrix verify that P4SMA10 is sourced from the original manufacturer or authorized distributors?
All P4SMA10 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 P4SMA10 meets industry standards.
7.What is the process for return or replacement of P4SMA10?
All P4SMA10 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA10, 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 P4SMA10 part is unused and in its original packaging.
Return procedure for P4SMA10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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