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Taiwan Semiconductor Corporation P4KE10A
- Part No.:
- P4KE10A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE10A.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,887
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Product details
Overview
P4KE10A from Taiwan Semiconductor is a unidirectional 400W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 10V nominal breakdown voltage, 8.55V working stand-off voltage, 14.5V maximum clamping voltage at 29A peak pulse current, and low leakage (<10μA at 8.55V), making it suitable for protecting automotive body electronics, industrial I/O interfaces, and AC/DC adapter input stages.
For engineers reviewing the P4KE10A datasheet, P4KE10A pinout, P4KE10A application, or P4KE10A equivalent, key selection criteria include clamping performance under 10/1000μs surge, thermal stability up to 175°C junction temperature, DO-41 package compatibility with through-hole assembly, and AEC-Q101 qualification for automotive-grade reliability validation.
Technical Context
The P4KE10A operates as a silicon avalanche diode with unidirectional polarity, triggered when reverse voltage exceeds its 9.50–10.5V breakdown range at 1mA test current. Its low dynamic impedance ensures rapid clamping response-typically <1.0ps from 0V to VBR-and limits transient energy dissipation across protected ICs.
It complies with ANSI/IEEE C62.35 for peak pulse power rating, delivers 400W non-repetitive surge capability at 10/1000μs waveform, and maintains stable operation across –55°C to +175°C junction temperature range with 0.073%/°C VBR temperature coefficient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.55 V - Maximum continuous reverse operating voltage before significant leakage; sets safe margin below system rail (e.g., 9–12V DC bus) |
| VBR @ 1 mA | 9.50–10.5 V - Verified avalanche onset range; ensures predictable turn-on during transients without premature conduction |
| VC @ IPPM | 14.5 V - Clamped voltage at 29 A peak pulse; defines worst-case stress on downstream circuitry during surge events |
| PPK | 400 W - Peak pulse power handling per 10/1000μs waveform; supports IEC 61000-4-5 Level 4 immunity testing |
| IR @ VWM | <10 μA - Reverse leakage at stand-off voltage; minimizes standby power loss and avoids false triggering in high-impedance nodes |
| TJ max | +175 °C - Maximum junction temperature; enables reliable operation in under-hood automotive or enclosed industrial enclosures |
| Package | DO-204AL (DO-41) - Standard axial-leaded through-hole package; compatible with legacy PCB layouts and wave soldering processes |
Pinout & Package
DO-204AL (DO-41) package with axial leads: cathode indicated by band-marked end; anode is unmarked lead. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked lead) | Current sink during clamping | Connected to protected line; conducts surge current to ground when VREV > VBR |
| Cathode (banded lead) | Reference terminal / ground connection | Typically tied to system ground plane; establishes clamping reference and defines unidirectional polarity |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option available | Validated for automotive under-hood applications including engine control modules and lighting drivers |
| 400W peak pulse power (10/1000μs) | Withstands IEC 61000-4-5 Combination Wave surges up to 4kV open-circuit / 2kA short-circuit |
| Clamping voltage ≤14.5V at 29A | Keeps protected 3.3V/5V logic ICs within absolute maximum ratings during ESD/EFT events |
| Response time <1.0ps | Activates faster than most microcontroller I/O pin ESD structures, providing upstream defense layer |
| RoHS & halogen-free compliant | Meets IPC-1752A material declaration requirements for industrial and consumer end equipment |
Applications
| Automotive Body Control Module (BCM) Power Input | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects 12V supply rail of BCM against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between fuse and DC-DC converter input. Use Value: Limits transient voltage to ≤14.5V, preventing damage to 16V-rated input capacitors and LDO regulators. | Use Scenario: Shields 24V digital input channel from inductive kickback caused by solenoid valve switching. IC Role / Device Role / Timing Role: Fast-acting shunt device parallel to optocoupler input, diverting surge energy before isolation barrier. Use Value: Clamps 100V+ transients to safe levels within nanoseconds, preserving optocoupler CTR and long-term reliability. |
| AC/DC Adapter Secondary-Side Output | USB-C Power Delivery (PD) Bus Protection |
Use Scenario: Guards regulated 5V/9V/15V output of flyback adapter against output short-circuit recovery spikes and external ESD. IC Role / Device Role / Timing Role: Final-stage TVS mounted directly at connector pins, downstream of output filter capacitor. Use Value: Absorbs 400W surge without degradation, maintaining output regulation integrity during repeated fault events. | Use Scenario: Protects CC1/CC2 communication lines and VBUS line in USB-C receptacle against contact ESD (IEC 61000-4-2 ±15kV air). IC Role / Device Role / Timing Role: Unidirectional clamp on VBUS rail; bidirectional variants used on CC lines. Use Value: Sub-1ns response prevents ESD-induced latch-up in PD controller ICs while maintaining signal integrity at 3A/5A charging currents. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | Surface-mount SMB package; same 10V nominal, 14.5V clamping, but rated for 600W peak power | Requires PCB redesign for SMT placement; better suited for space-constrained designs with higher surge margin needs | Select SMBJ10A when board area is limited and surge immunity must exceed IEC 61000-4-5 Level 4 |
| 1N6267A | Same DO-41 package and 10V rating; lower 300W peak power rating and 15.0V clamping voltage at 28A | Compatible drop-in replacement where 400W headroom is not required; slightly higher clamping stress on protected circuit | Choose 1N6267A only if cost sensitivity outweighs need for lowest possible clamping voltage and highest surge margin |
Compared with SMBJ10A and 1N6267A, the P4KE10A offers optimal balance of through-hole manufacturability, 400W surge capacity, and 14.5V clamping-making it ideal for cost-sensitive, high-volume automotive and industrial power rail protection where DO-41 footprint is retained.
Availability
P4KE10A is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and AC/DC adapter secondary-side protection requiring stable component supply and long-term lifecycle support.
Supply support for P4KE10A 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, with global distribution and AEC-Q101 qualification capabilities.
The P4KE series belongs to TSC's high-reliability transient suppression portfolio, engineered specifically for robust front-end protection in automotive, industrial, and power supply applications where consistent clamping performance and thermal resilience are critical.
FAQ
What is the breakdown voltage tolerance of P4KE10A?
The P4KE10A has a specified breakdown voltage range of 9.50 V to 10.5 V at 1 mA test current, representing a ±5% tolerance around its 10 V nominal rating. This tight VBR window ensures consistent clamping behavior across production lots and supports precise overvoltage threshold design in circuits where margin to downstream IC absolute maximum ratings is constrained. The P4KE10A datasheet confirms this range under standard test conditions (TA = 25°C).
Is P4KE10A suitable for bidirectional transient protection?
No, the P4KE10A is a unidirectional TVS diode and is not rated for bidirectional operation. Its electrical characteristics-including breakdown and clamping-are defined only for reverse-biased conduction. For bidirectional protection, the P4KE10CA variant must be used. Using P4KE10A in a bidirectional configuration risks failure during positive-going transients, as it lacks symmetrical avalanche structure. Always verify polarity marking (cathode band) during P4KE10A layout and assembly.
What is the maximum clamping voltage of P4KE10A at its rated peak pulse current?
The maximum clamping voltage of P4KE10A is 14.5 V at 29 A peak pulse current (IPPM) under the standard 10/1000 μs double-exponential waveform. This value represents the worst-case voltage seen by downstream components during full-rated surge events and is measured with specified test conditions per ANSI/IEEE C62.35. The P4KE10A maintains this clamping performance across its full operating temperature range (–55°C to +175°C), with minimal derating required.
Does P4KE10A meet automotive qualification standards?
The base P4KE10A is not AEC-Q101 qualified; however, the P4KE10AH variant (with "H" suffix) is explicitly qualified to AEC-Q101 for automotive applications. The P4KE10A shares identical electrical specifications and DO-41 packaging with the qualified version but lacks the extended reliability test documentation required for under-hood deployment. For automotive use, specify P4KE10AH to ensure compliance with stress tests including HTGB, H3TRB, and temperature cycling.
How does P4KE10A compare to P4KE10 in terms of leakage and clamping performance?
The P4KE10A improves upon the P4KE10 with tighter VBR tolerance (9.50–10.5 V vs. 9.00–11.00 V), lower working stand-off voltage (8.55 V vs. 8.10 V), and reduced clamping voltage (14.5 V vs. 15.0 V at respective IPPM). Both share identical 400W peak power rating and DO-41 package. The P4KE10A's enhanced parameters provide better noise immunity and lower stress on protected circuits, making it the preferred choice in new designs where tighter voltage control is needed. The P4KE10A datasheet explicitly lists these improvements in its MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS table.
P4KE10A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- P4KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 29A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE10A FAQ
1.How can I place an order for P4KE10A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE10A 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 P4KE10A reliable?
The price and inventory of P4KE10A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE10A is usually 5 days.
3.What payment methods are accepted for P4KE10A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE10A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE10A?
P4KE10A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE10A 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 P4KE10A?
For technical support, including P4KE10A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE10A requirements.
6.How does Aetrix verify that P4KE10A is sourced from the original manufacturer or authorized distributors?
All P4KE10A 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 P4KE10A meets industry standards.
7.What is the process for return or replacement of P4KE10A?
All P4KE10A units undergo pre-shipment inspection (PSI). If there is an issue with P4KE10A, 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 P4KE10A part is unused and in its original packaging.
Return procedure for P4KE10A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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