Taiwan Semiconductor Corporation P4SMA62CA
- Part No.:
- P4SMA62CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA62CA.pdf
- Description:
- TVS DIODE 53VWM 85VC DO214AC
- Quantity:
- Payment:

- Shipping:

Inventory:4,002
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Product details
Overview
P4SMA62CA from Taiwan Semiconductor is a bidirectional 400W surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a working stand-off voltage of 53.0 V, breakdown voltage range of 58.9–65.1 V at 1 mA, clamping voltage of 85.0 V at 5.0 A peak pulse current, and operates across –55°C to +150°C junction temperature.
For engineers reviewing the P4SMA62CA datasheet, P4SMA62CA pinout, P4SMA62CA application, or P4SMA62CA equivalent, key selection considerations include its DO-214AC (SMA) package compatibility, bidirectional surge handling per ISO 7637-2 Pulse 1/2a/2b/3a/3b, sub-1 ps response time, and <1 µA reverse leakage at VWM, critical for low-power automotive and industrial power supply designs.
Technical Context
The P4SMA62CA implements a glass-passivated silicon avalanche junction optimized for fast transient suppression in both polarities. Its unidirectional counterpart is P4SMA62A; the "CA" suffix explicitly denotes bidirectional configuration with symmetrical electrical characteristics in forward and reverse directions.
It delivers 400 W peak pulse power (10/1000 µs waveform), supports 40 A non-repetitive forward surge current, and maintains clamping performance under ambient temperatures up to +150°C - validated per JEDEC JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 53.0 V - Maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VBR min/max | 58.9 V / 65.1 V at IT = 1 mA - Confirmed avalanche onset range ensuring reliable turn-on during transients |
| VC @ IPPM | 85.0 V at 5.0 A (10/1000 µs) - Clamped voltage limiting downstream circuit stress during 400 W surge events |
| IR @ VWM | <1 µA - Minimal standby power loss and signal integrity impact in always-on systems |
| PPK | 400 W - Peak pulse power rating enabling protection against ISO 7637-2 automotive load dump and inductive switching spikes |
| TJ max | +150 °C - Junction temperature limit supporting operation in under-hood or enclosed industrial environments |
| Package | DO-214AC (SMA) - Standardized surface-mount outline with matte tin-plated leads, UL 94V-0 molding compound |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with two coplanar gull-wing leads; cathode band marking indicates polarity for unidirectional variants - absent on P4SMA62CA due to bidirectional symmetry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional terminal pair | No fixed anode/cathode; either lead serves as input/output depending on transient polarity - enables single-component protection on AC-coupled or floating lines |
| Case | Non-terminating body | Electrically isolated plastic housing; no thermal or electrical connection to PCB except via soldered leads |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances long-term reliability and stability of breakdown voltage under thermal cycling and humidity exposure |
| Response time <1.0 ps | Enables suppression before sensitive ICs experience voltage overshoot - critical for protecting USB, CAN, and sensor interfaces |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validated for automotive ECU-level surge immunity without external filtering or derating |
| Moisture Sensitivity Level 1 | Zero bake requirement prior to reflow - supports standard SMT assembly without process modification |
| Halogen-free & RoHS-compliant | Meets IEC 61249-2-21 and EU Directive 2011/65/EU for environmentally constrained applications |
Applications
| Automotive Body Control Module (BCM) | Industrial DC/DC Converter Input Stage |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O from load dump and jump-start surges in vehicle door modules. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector entry point to shunt transients before they reach protected ICs. Use Value: Maintains signal integrity under ISO 7637-2 Pulse 5a (load dump) while adding no propagation delay or capacitance penalty to 20 kbps LIN signaling. |
Use Scenario: Safeguarding primary-side MOSFET gate drivers and controller ICs in 24 V-to-5 V isolated flyback converters used in factory automation PLCs. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing inductive kickback from relay coils and motor drives coupled onto shared 24 V rail. Use Value: Limits rail voltage excursions to ≤85 V during 40 A surge events, preventing latch-up or gate oxide rupture in 60 V-rated controllers. |
| LED Streetlight Driver Input | Telecom Power Shelf Surge Protection |
Use Scenario: Suppressing lightning-induced surges on outdoor-rated 120–277 VAC LED driver inputs subjected to Category III surge environments. IC Role / Device Role / Timing Role: First-stage clamping device upstream of bridge rectifier and bulk capacitor, coordinated with MOVs for staged energy handling. Use Value: Withstands repeated 400 W pulses without degradation, extending system MTBF beyond 50,000 hours in humid coastal deployments. |
Use Scenario: Protecting -48 V DC distribution boards in central office equipment from induced surges on telecom plant wiring. IC Role / Device Role / Timing Role: Bidirectional TVS deployed across power/return pairs to suppress common-mode transients without ground reference dependency. Use Value: Symmetrical clamping ensures equal protection regardless of fault polarity - eliminating need for dual-device placement on redundant power feeds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA (Bourns) | Same DO-214AA (SMB) package; 64 V VWM, 86.4 V VC @ 4.6 A; 600 W rating | Higher power rating but larger footprint - requires PCB layout change | Select when higher surge margin is required and board space allows SMB package |
| 1.5KE68CA (ON Semiconductor) | Through-hole DO-201AD package; 68 V VWM, 104 V VC @ 3.8 A; 1500 W rating | Not surface-mountable; incompatible with automated SMT lines | Choose only for legacy through-hole designs or prototyping where manual assembly is acceptable |
Compared with P4SMA62CA, SMBJ64CA offers higher surge capacity but demands larger board area, while 1.5KE68CA provides greater peak power at the cost of SMT incompatibility - making P4SMA62CA the optimal balance of 400 W capability, DO-214AC footprint, and full bidirectional compliance for high-volume automotive and industrial PCBs.
Availability
P4SMA62CA is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial programmable logic controllers, and LED lighting drivers requiring stable component supply with full traceability and lifecycle management.
Supply support for P4SMA62CA 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 global automotive, industrial, and consumer markets since 1979.
The P4SMA series belongs to TSC's transient voltage suppressor product line, engineered specifically for AEC-Q101 qualified automotive power rail protection and industrial-grade surge immunity in compact surface-mount form factors.
FAQ
What does the "CA" suffix mean in P4SMA62CA?
The "CA" suffix in P4SMA62CA designates a bidirectional configuration, meaning the device functions identically in both forward and reverse bias directions. Unlike unidirectional variants such as P4SMA62A, P4SMA62CA has no cathode marking and provides symmetrical clamping - essential for protecting AC-coupled signals or floating power domains where polarity is undefined.
Is P4SMA62CA compliant with automotive surge standards?
Yes, P4SMA62CA meets ISO 7637-2 requirements for Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling), verified per manufacturer test data. Its 400 W peak pulse rating and 85.0 V clamping voltage ensure robust protection for ECUs, body control modules, and infotainment systems without additional external components.
What is the maximum operating temperature for P4SMA62CA?
P4SMA62CA has a specified junction temperature range of –55°C to +150°C. This allows reliable operation in under-hood automotive environments and enclosed industrial enclosures. Derating curves in the datasheet confirm usable power dissipation down to 50% at +125°C ambient, supporting sustained surge duty cycles in thermally demanding applications.
Can P4SMA62CA replace P4SMA62A in a design?
No - P4SMA62CA and P4SMA62A are not interchangeable. P4SMA62A is unidirectional with a cathode band and asymmetric conduction; P4SMA62CA is bidirectional with no polarity marking. Substituting one for the other risks incorrect clamping behavior, especially on DC-biased lines. Always verify circuit topology and transient polarity before selecting between "A" and "CA" variants.
What is the typical reverse leakage current of P4SMA62CA at rated VWM?
P4SMA62CA exhibits a maximum reverse leakage current of 1 µA at its working stand-off voltage of 53.0 V, measured at 25°C. This ultra-low leakage minimizes standby power loss and avoids false triggering in high-impedance sensing circuits - a key advantage over higher-leakage alternatives like older 1N6267-series devices.
P4SMA62CA 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 53V
- Voltage - Breakdown (Min):
- 58.9V
- Voltage - Clamping (Max) @ Ipp:
- 85V
- Current - Peak Pulse (10/1000µs):
- 5A
- 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)
P4SMA62CA FAQ
1.How can I place an order for P4SMA62CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA62CA 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 P4SMA62CA reliable?
The price and inventory of P4SMA62CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA62CA is usually 5 days.
3.What payment methods are accepted for P4SMA62CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA62CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA62CA?
P4SMA62CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA62CA 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 P4SMA62CA?
For technical support, including P4SMA62CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA62CA requirements.
6.How does Aetrix verify that P4SMA62CA is sourced from the original manufacturer or authorized distributors?
All P4SMA62CA 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 P4SMA62CA meets industry standards.
7.What is the process for return or replacement of P4SMA62CA?
All P4SMA62CA units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA62CA, 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 P4SMA62CA part is unused and in its original packaging.
Return procedure for P4SMA62CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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