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Taiwan Semiconductor Corporation P4SMA15H
- Part No.:
- P4SMA15H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA15H.pdf
- Description:
- 400W, 15V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:9,174
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Product details
Overview
P4SMA15H 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 13.5–16.5 V breakdown voltage (VBR), 12.1 V working stand-off voltage (VWM), 22.0 V clamping voltage (VC) at 19.0 A peak pulse current, 400 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the P4SMA15H datasheet, P4SMA15H pinout, P4SMA15H application, or P4SMA15H equivalent, key selection criteria include its DO-214AC (SMA) package compatibility, low leakage (<1 µA at VWM), fast sub-1 ps response time, and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive transients.
Technical Context
The P4SMA15H operates as a unidirectional avalanche diode, clamping transient overvoltages above its VBR threshold while maintaining low leakage below VWM. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
Designed for single-die configuration in DO-214AC packaging, it supports automated SMT placement and meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 - enabling reflow compatibility without baking. Thermal derating begins above 25°C ambient per Fig.2, with maximum junction temperature rated at 150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT=1.0 mA | 13.5–16.5 V: Ensures reliable turn-on during overvoltage events without premature conduction during normal operation. |
| VWM | 12.1 V: Maximum continuous reverse operating voltage before leakage exceeds 1 µA - defines safe DC rail margin. |
| VC @ IPPM=19.0 A | 22.0 V: Clamped voltage during 10/1000 µs surge - limits downstream IC stress to ≤22 V. |
| PPPM | 400 W: Peak pulse power handling capability - supports robust protection against ISO 7637-2 automotive transients. |
| IR @ VWM | <1 µA: Ultra-low reverse leakage preserves battery life and minimizes standby power loss in always-on systems. |
| Response Time | <1.0 ps: Enables effective suppression of ESD and fast-rising transients before sensitive circuitry is damaged. |
| TJ Max | 150 °C: Allows operation in under-hood automotive environments and high-power industrial enclosures. |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-ended unidirectional configuration with cathode band marking. Matte tin-plated leads comply with J-STD-002 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side | Connected to protected line (e.g., +12 V rail); conducts during forward surge or bidirectional variants only if configured accordingly. |
| Cathode | Clamp/Return side | Connected to ground or lower-potential reference; avalanche conduction occurs here during reverse overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS sensors requiring zero-failure reliability. |
| Glass passivated junction | Enhances long-term stability of VBR and reduces parameter drift under thermal cycling and humidity exposure. |
| ISO 7637-2 compliant | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) without degradation. |
| Moisture Sensitivity Level 1 | Enables standard SMT reflow without pre-bake - reduces manufacturing complexity and cost in high-volume production. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive - suitable for green electronics manufacturing and export to regulated markets. |
Applications
| Switching Mode Power Supply (SMPS) | On-board DC/DC Converter |
|---|---|
Use Scenario: Protection of primary-side MOSFET gate drivers and secondary-side rectifier outputs against switching spikes and load dump transients. IC Role / Device Role: Unidirectional TVS placed across input/output rails to clamp voltage excursions beyond 12.1 V. Use Value: Prevents MOSFET avalanche failure and output capacitor overvoltage by limiting peak clamped voltage to 22.0 V during 400 W surges. | Use Scenario: Input rail protection in automotive infotainment or ADAS domain controllers using 12 V-to-3.3 V/5 V buck converters. IC Role / Device Role: Standoff protection element on VIN pin to absorb ISO 7637-2 Pulse 1 and Pulse 2a transients. Use Value: Maintains converter uptime by preventing latch-up or damage to internal LDOs and PWM controllers during cold-crank or jump-start events. |
| Lighting Application | Adapters |
Use Scenario: Overvoltage suppression in LED driver modules for automotive headlights or interior lighting subjected to load dump. IC Role / Device Role: Parallel-connected TVS on constant-current driver input to shunt energy from 12 V battery transients. Use Value: Extends LED module lifetime by eliminating cumulative stress from repeated 100 V/50 ms pulses defined in ISO 7637-2 Pulse 5a. | Use Scenario: Secondary-side surge protection in wall adapters powering consumer electronics and IoT gateways. IC Role / Device Role: Final-stage clamp on DC output connector to prevent user-induced ESD or lightning-induced surges from reaching end equipment. Use Value: Achieves IEC 61000-4-2 Level 4 (±8 kV contact) immunity without additional filtering components due to sub-1 ps response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | DO-214AA (SMB) package; 15 V nominal VBR; 1000 W peak power rating; higher VC = 24.4 V at 41.3 A. | Higher power handling but larger footprint; better suited for industrial AC/DC front-end protection than space-constrained automotive modules. | Select SMBJ15A when board area allows larger package and system requires >400 W surge margin. |
| 1.5SMC15A | DO-214AB (SMC) package; same VBR range; 1500 W peak power; VC = 24.4 V at 61.5 A; higher thermal mass. | Used in high-reliability telecom power supplies where sustained surge duty cycles demand greater thermal dissipation. | Choose 1.5SMC15A for applications needing extended surge repetition rate or higher IPPM endurance. |
Compared with P4SMA15H, SMBJ15A offers higher surge capacity in a slightly larger DO-214AA package, while 1.5SMC15A delivers significantly greater thermal robustness in DO-214AB - making both alternatives suitable where PCB layout permits larger footprints and higher power margins are required.
Availability
P4SMA15H is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and consumer adapter designs requiring stable component supply and AEC-Q101-compliant surge protection.
Supply support for P4SMA15H 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 devices.
The P4SMA15H belongs to TSC's AEC-Q101-qualified P4SMA series of surface-mount TVS diodes, engineered specifically for automotive and industrial DC power rail protection with stringent reliability and surge immunity requirements.
FAQ
What is the breakdown voltage range of the P4SMA15H?
The P4SMA15H has a guaranteed breakdown voltage (VBR) range of 13.5 V to 16.5 V at a test current of 1.0 mA. This range ensures consistent clamping behavior across production lots while allowing margin for thermal drift and manufacturing variation - critical for predictable protection in automotive 12 V systems where P4SMA15H is commonly deployed.
Is the P4SMA15H suitable for bidirectional transient suppression?
No, the P4SMA15H is a unidirectional TVS diode intended for DC rail protection with polarity-sensitive placement. For bidirectional applications such as data line or AC-coupled signal protection, the P4SMA15AH variant (with "A" suffix) or dedicated bipolar parts like P4SMA15CH must be used - the P4SMA15H itself lacks symmetrical clamping in both directions.
What is the maximum clamping voltage of the P4SMA15H during a surge event?
The P4SMA15H exhibits a maximum clamping voltage (VC) of 22.0 V when subjected to its rated 19.0 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events and is measured per ANSI/IEEE C62.35 - a key parameter for ensuring downstream ICs remain within absolute maximum ratings.
Does the P4SMA15H meet automotive qualification standards?
Yes, the P4SMA15H is explicitly AEC-Q101 qualified and tested to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b transient immunity requirements. Its DO-214AC package is rated MSL Level 1, and it undergoes full temperature cycling, humidity testing, and mechanical stress validation - confirming suitability for under-hood and chassis-mounted automotive ECUs where P4SMA15H is routinely specified.
What packaging and reel quantity is available for the P4SMA15H?
The P4SMA15H is supplied in DO-214AC (SMA) package format on 7,500-unit tape-and-reel carriers, optimized for high-speed pick-and-place assembly. The matte tin-plated leads comply with J-STD-002 solderability standards, and the green molding compound meets UL 94V-0 flammability rating - all verified per the official Taiwan Semiconductor datasheet revision A2102 for P4SMA15H.
P4SMA15H 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):
- 12.1V
- Voltage - Breakdown (Min):
- 13.5V
- Voltage - Clamping (Max) @ Ipp:
- 22V
- Current - Peak Pulse (10/1000µs):
- 19A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA15H FAQ
1.How can I place an order for P4SMA15H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA15H 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 P4SMA15H reliable?
The price and inventory of P4SMA15H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA15H is usually 5 days.
3.What payment methods are accepted for P4SMA15H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA15H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA15H?
P4SMA15H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA15H 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 P4SMA15H?
For technical support, including P4SMA15H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA15H requirements.
6.How does Aetrix verify that P4SMA15H is sourced from the original manufacturer or authorized distributors?
All P4SMA15H 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 P4SMA15H meets industry standards.
7.What is the process for return or replacement of P4SMA15H?
All P4SMA15H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA15H, 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 P4SMA15H part is unused and in its original packaging.
Return procedure for P4SMA15H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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