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Taiwan Semiconductor Corporation P4SMA62H
- Part No.:
- P4SMA62H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA62H.pdf
- Description:
- 400W, 62V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:5,855
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Product details
Overview
P4SMA62H from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 50.2 V working stand-off voltage, 55.8–68.2 V breakdown range at 1 mA, 89.0 V clamping voltage at 4.7 A (10/1000 µs), 400 W peak pulse power rating, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the P4SMA62H datasheet, P4SMA62H pinout, P4SMA62H application, or P4SMA62H equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, junction temperature derating above 25°C, DO-214AC (SMA) package compatibility with automated placement, and leakage current ≤1 µA at VWM.
Technical Context
The P4SMA62H operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response (<1.0 ps) and stable breakdown characteristics. Its 150°C maximum junction temperature and -55°C to +150°C operating range support under-hood and industrial environments.
It meets ISO 7637-2 for automotive transients and complies with J-STD-020 moisture sensitivity level 1. The device uses a single-die DO-214AC (SMA) package with matte tin-plated leads, rated for 40 A non-repetitive forward surge current and 3.5 V max forward voltage at 25 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 50.2 V - Maximum continuous reverse voltage before significant leakage; defines safe operating DC rail margin |
| VBR min/max | 55.8 V / 68.2 V at 1.0 mA - Confirmed breakdown window ensures predictable turn-on during transients |
| VC@IPPM | 89.0 V at 4.7 A (10/1000 µs) - Clamping voltage limits downstream IC stress during surge events |
| PPPM | 400 W - Peak pulse power handling capability per standard 10/1000 µs waveform |
| IR@VWM | ≤1 µA - Ultra-low reverse leakage preserves efficiency in high-impedance bias networks |
| TJ max | +150 °C - Enables use in thermally constrained locations without thermal shutdown |
| Package | DO-214AC (SMA) - Standardized SMD footprint compatible with IPC-7351B land patterns |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with cathode band marking; anode and cathode terminals aligned for standard pick-and-place and reflow soldering. Weight: 0.060 g. Meets UL 94V-0 flammability rating and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected circuit ground or low-side return | Provides low-impedance path to ground during clamping; must be routed with minimal inductance |
| Cathode | Current exit point in forward bias; connected to protected line (e.g., 12 V rail, CAN_H) | Marked by band; reverse-biased during normal operation; conducts only during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal cycling |
| Clamping ratio (VC/VBR) | ~1.31 (89.0 V / 68.2 V max) - Balances low clamping with reliable margin above VWM |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) |
| Moisture sensitivity level 1 | Enables board assembly without baking or dry-pack requirements |
Applications
| Switching Mode Power Supply (SMPS) | Automotive 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 coupling. IC Role / Device Role: Unidirectional TVS placed across input/output rails to clamp transient energy before it reaches controller ICs or output capacitors. Use Value: Limits VDS stress on 600 V MOSFETs and prevents false triggering of PWM controllers during 400 W surge events. | Use Scenario: Input rail protection in 12 V-to-5 V/3.3 V buck converters powering ADAS sensors and infotainment ECUs. IC Role / Device Role: Front-end transient suppressor on converter input, positioned upstream of EMI filters and input bulk capacitors. Use Value: Maintains <50.2 V stand-off while clamping ISO 7637-2 Pulse 1 to ≤89.0 V, ensuring regulator IC survival under 100 V/50 ms load dump. |
| Industrial Lighting Driver | USB-C Power Delivery Interface |
Use Scenario: Surge suppression on constant-current LED driver outputs exposed to cable discharge events and lightning-induced surges. IC Role / Device Role: Output-side TVS protecting LED string controllers and current-sense amplifiers from reverse-polarity transients. Use Value: Leverages 1 µA leakage at 50.2 V to avoid loading precision current regulation; clamps 4.7 A transients within 1.0 ps response time. | Use Scenario: Overvoltage protection on VBUS lines in USB-C PD sink designs where 20 V max is specified. IC Role / Device Role: Secondary-level clamping device after primary front-end protection, guarding PD controller and port power switches. Use Value: Provides 50.2 V working stand-off with 89.0 V clamping-compatible with USB PD 3.0 20 V profiles while avoiding false trips during normal 20 V operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ60A | DO-214AA (SMB) package; 60 V VWM, 66.7–73.3 V VBR, 96.8 V VC @ 4.1 A | Higher clamping voltage (+7.8 V) and lower IPPM (−0.6 A); same 400 W rating | Select when board space allows larger SMB footprint and higher clamping margin is acceptable |
| 1.5SMC62A | DO-214AB (SMC) package; 62 V VWM, 68.9–76.0 V VBR, 100 V VC @ 4.0 A | 11 V higher clamping voltage; 1.5 kW surge rating but larger footprint and higher thermal mass | Prefer for higher-energy transients where PCB layout accommodates SMC and thermal dissipation is prioritized |
Compared with P4SMA62H, SMBJ60A offers identical power rating but requires PCB redesign for DO-214AA, while 1.5SMC62A delivers greater surge headroom at the cost of size and clamping performance-making P4SMA62H optimal for space-constrained AEC-Q101-compliant designs needing precise 50.2 V stand-off and 89.0 V clamping.
Availability
P4SMA62H is available at Aetrix Electronics and suitable for automotive power systems, industrial lighting drivers, and USB-C PD interface protection requiring stable component supply and AEC-Q101 traceability.
Supply support for P4SMA62H 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, serving automotive, industrial, and consumer markets since 1979.
The P4SMA series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for automotive-grade transient immunity in power distribution networks and signal interfaces where reliability under harsh electrical environments is mandatory.
FAQ
What is the clamping voltage of P4SMA62H and how is it measured?
The P4SMA62H has a maximum clamping voltage (VC) of 89.0 V, measured at a peak impulse current (IPPM) of 4.7 A using the standardized 10/1000 µs double-exponential waveform per IEC 61000-4-5 and ANSI/IEEE C62.35. This value represents the upper limit of voltage seen by downstream circuitry during a surge event and is confirmed at TA = 25°C. The P4SMA62H maintains this clamping performance across its full operating temperature range with appropriate derating.
Is P4SMA62H suitable for bidirectional transient protection?
No, P4SMA62H is a unidirectional TVS diode intended for DC rail protection with defined polarity (cathode band marking). For bidirectional applications such as AC lines or differential data buses, the P4SMA62AH variant-or dedicated bipolar parts like P4SMA62CH-must be used. The P4SMA62H does not conduct symmetrically in reverse bias and lacks the dual-junction structure required for bidirectional clamping.
What packaging and reel quantity is available for P4SMA62H?
P4SMA62H is supplied in DO-214AC (SMA) package format on 7,500-piece tape-and-reel carriers compliant with EIA-481 standards. Each reel includes full traceability documentation, RoHS and halogen-free certification per IEC 61249-2-21, and moisture sensitivity level 1 labeling per J-STD-020-eliminating bake requirements prior to SMT assembly.
Does P4SMA62H meet automotive qualification standards?
Yes, P4SMA62H is AEC-Q101 qualified and tested per the full stress test schedule including HTGB, AC/DC life test, temperature cycling, and mechanical shock. It also meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements for automotive transient immunity, making it suitable for engine control modules, body control units, and infotainment power supplies in passenger and commercial vehicles.
How does the temperature coefficient affect P4SMA62H's breakdown voltage?
The P4SMA62H has a maximum temperature coefficient of VBR of 0.104 %/°C, meaning its breakdown voltage increases by up to 0.053 V per °C rise above 25°C. At 125°C junction temperature, VBR may shift upward by approximately 5.2 V from its 25°C nominal value-critical for designs operating near TJmax. This positive TC is inherent to silicon avalanche diodes and must be factored into worst-case clamping margin analysis alongside VC derating.
P4SMA62H 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):
- 50.2V
- Voltage - Breakdown (Min):
- 55.8V
- Voltage - Clamping (Max) @ Ipp:
- 89V
- Current - Peak Pulse (10/1000µs):
- 4.7A
- 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)
P4SMA62H FAQ
1.How can I place an order for P4SMA62H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA62H 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 P4SMA62H reliable?
The price and inventory of P4SMA62H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA62H is usually 5 days.
3.What payment methods are accepted for P4SMA62H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA62H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA62H?
P4SMA62H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA62H 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 P4SMA62H?
For technical support, including P4SMA62H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA62H requirements.
6.How does Aetrix verify that P4SMA62H is sourced from the original manufacturer or authorized distributors?
All P4SMA62H 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 P4SMA62H meets industry standards.
7.What is the process for return or replacement of P4SMA62H?
All P4SMA62H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA62H, 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 P4SMA62H part is unused and in its original packaging.
Return procedure for P4SMA62H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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