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Taiwan Semiconductor Corporation P4KE36
- Part No.:
- P4KE36
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE36.pdf
- Description:
- 400W, 36V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,301
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Product details
Overview
P4KE36 from Taiwan Semiconductor is a unidirectional 400W transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a nominal breakdown voltage of 36 V, clamps transients to ≤52.0 V at 8.0 A peak pulse current, and operates with ≤1 μA reverse leakage at its 29.1 V working stand-off voltage - deployed in automotive lighting control modules, industrial PLC I/O protection, and telecom power supply surge suppression.
For engineers reviewing the P4KE36 datasheet, P4KE36 pinout, P4KE36 application, or P4KE36 equivalent, key selection criteria include clamping voltage under 10/1000 μs surge, DO-204AL (DO-41) package compatibility, unidirectional polarity marking, junction temperature range (–55°C to +175°C), and AEC-Q101 qualification availability for automotive-grade variants.
Technical Context
The P4KE36 uses an avalanche breakdown mechanism to provide fast, low-impedance clamping during ESD and lightning-induced transients. Its 10/1000 μs waveform rating of 400 W defines energy-handling capability, while its <1.0 ps response time ensures protection before sensitive downstream ICs experience overstress.
Designed for placement across DC inputs or between signal and ground, the device operates unidirectionally with cathode-band polarity marking and requires no bias circuitry. Thermal performance is validated up to 175°C junction temperature, with derating applied above 25°C ambient per published curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 32.4 V / 39.6 V at 1 mA test current - defines guaranteed avalanche onset window for reliable turn-on margin |
| VWM | 29.1 V - maximum continuous DC or RMS voltage the device blocks without significant leakage |
| IPPM | 8.0 A - peak pulse current it safely clamps at 10/1000 μs waveform, directly determining protected circuit's surge withstand |
| VC | 52.0 V - maximum clamped voltage seen by protected load during rated surge, critical for IC voltage tolerance margin |
| PPK | 400 W - non-repetitive surge power handling capacity, defining single-event robustness in harsh environments |
| TJ max | +175 °C - maximum junction temperature enabling operation in under-hood or high-ambient industrial enclosures |
| Package | DO-204AL (DO-41) - axial-leaded through-hole package with tin-plated leads, compatible with standard wave-solder processes |
Pinout & Package
DO-204AL (DO-41) axial package with cathode band marking on one end; leads are pure tin-plated and solderable per J-STD-002. Polarity is unidirectional: cathode (banded end) connects to system ground or lower-potential rail; anode connects to protected line.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Protected line input | Connects to DC supply rail or signal trace requiring transient suppression; carries surge current into device during clamping |
| Cathode (banded) | Reference/ground return | Must be tied to stable local ground plane; establishes clamping reference and completes low-inductance surge path |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24 V systems without cascading failure |
| Clamping voltage ≤52.0 V | Ensures protected 3.3 V/5 V/12 V logic and power ICs remain within absolute maximum ratings during transients |
| Reverse leakage ≤1 μA at 29.1 V | Minimizes standby power loss and avoids false triggering in battery-powered or low-current sensor circuits |
| AEC-Q101 qualified option | Validates reliability for automotive applications including headlight drivers, body control modules, and infotainment power inputs |
| UL 94V-0 molding compound | Meets flammability requirements for enclosed industrial equipment and transportation electronics enclosures |
Applications
| Automotive Lighting Control | Industrial PLC Digital I/O |
|---|---|
Use Scenario: Protecting LED driver ICs and MOSFET gate drivers from load-dump and inductive kickback in vehicle headlamp modules. IC Role / Device Role / Timing Role: Primary clamping element placed across 12 V/24 V supply input to absorb >400 W surges within nanoseconds. Use Value: Prevents catastrophic failure of buck controllers and gate drivers during alternator load dump events per ISO 7637-2 Pulse 5a. | Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers exposed to field-wiring transients. IC Role / Device Role / Timing Role: Standoff protector on input terminal block, shunting fast EFT bursts (IEC 61000-4-4) before signal conditioning circuitry. Use Value: Maintains channel integrity and prevents firmware lockup or false state detection during factory floor EMI events. |
| Telecom Power Supply Input | Smart Meter AC/DC Converter Stage |
Use Scenario: Secondary surge protection on 48 V DC input of telecom base station power modules after primary MOV stage. IC Role / Device Role / Timing Role: Precision clamping device limiting residual overshoot to ≤52.0 V to protect DC-DC controller ICs and sense resistors. Use Value: Extends mean time between failures (MTBF) by preventing cumulative degradation of feedback optocouplers and error amplifiers. | Use Scenario: Overvoltage clamp on auxiliary 12 V rail derived from AC/DC converter in utility smart meters. IC Role / Device Role / Timing Role: Fast-response TVS placed across microcontroller VDD and isolated communication ICs (e.g., RS-485 transceivers). Use Value: Guarantees meter uptime during neutral-ground fault surges and lightning-induced coupling on distribution lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | Surface-mount SMB package (vs. DO-41); slightly lower clamping voltage (58.1 V vs. 52.0 V at same IPPM) | Better suited for space-constrained PCBs; requires rework of footprint and thermal relief design | Select when board real estate is limited and automated SMT assembly is preferred over through-hole |
| 1.5KE36A | Same DO-41 package but higher 1500 W rating; larger die size increases capacitance (≈150 pF vs. ≈50 pF for P4KE36) | Higher energy handling trades off with slower response and greater signal distortion on high-speed lines | Choose only for legacy designs requiring backward compatibility with 1.5KE footprint and higher surge margin |
Compared with SMBJ36A and 1.5KE36A, the P4KE36 offers optimal balance of compact axial packaging, low clamping voltage, and minimal junction capacitance - making it ideal for cost-sensitive, medium-energy protection where leaded assembly and signal integrity are priorities.
Availability
P4KE36 is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O protection, and telecom power supply input stages requiring stable component supply and long-term obsolescence management.
Supply support for P4KE36 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, automotive, and consumer markets.
The P4KE series belongs to TSC's transient voltage suppressor product line, engineered specifically for cost-effective, high-reliability overvoltage protection in DC power and signal interfaces across harsh-environment applications.
FAQ
What is the maximum clamping voltage of the P4KE36 under standard surge conditions?
The P4KE36 clamps to a maximum of 52.0 V when subjected to an 8.0 A peak pulse current with a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and represents the upper limit of voltage imposed on protected circuitry during a defined surge event - critical for ensuring downstream ICs like microcontrollers or gate drivers remain within safe operating limits. The P4KE36 achieves this while maintaining low dynamic impedance and sub-nanosecond response.
Is the P4KE36 suitable for automotive applications?
Yes - the P4KE36 is available in an AEC-Q101 qualified variant (e.g., P4KE36H), which undergoes stress testing for temperature cycling, humidity, mechanical shock, and high-temperature operating life. While the base P4KE36 meets industrial reliability standards, the H-suffix version is certified for use in automotive subsystems such as body electronics, lighting modules, and infotainment power inputs where qualification compliance is mandatory. Always verify part number suffix and datasheet revision for qualification status.
How does the P4KE36 differ from the P4KE36A variant?
The P4KE36A has tighter breakdown voltage tolerance: 34.2–37.8 V (vs. 32.4–39.6 V for P4KE36) at 1 mA test current, resulting in more consistent clamping behavior across production lots. Its working stand-off voltage is 30.8 V (vs. 29.1 V), allowing slightly higher continuous operating voltage before leakage rises. Both share identical package, power rating (400 W), and clamping voltage (49.9 V vs. 52.0 V), making the A-version preferable where precision voltage thresholding is required.
What is the reverse leakage current specification for the P4KE36 at its working voltage?
At its rated working stand-off voltage of 29.1 V, the P4KE36 exhibits a maximum reverse leakage current (ID) of 1 μA at 25°C ambient. This ultra-low leakage minimizes power loss in always-on circuits and avoids unintended biasing of high-impedance nodes - essential in battery-operated sensors or precision analog front-ends. Leakage increases with temperature but remains below 5 μA up to 125°C per characterization data.
Can the P4KE36 be used in bidirectional configurations?
No - the P4KE36 is a unidirectional TVS diode, marked with a cathode band and intended for DC rail protection where polarity is fixed. For bidirectional protection (e.g., AC lines or differential signals), select the bipolar P4KE36CA variant, which provides symmetrical clamping in both directions. Using a unidirectional device like the P4KE36 on AC or floating signals risks forward conduction and permanent damage during negative half-cycles.
P4KE36 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):
- 29.1V
- Voltage - Breakdown (Min):
- 32.4V
- Voltage - Clamping (Max) @ Ipp:
- 52V
- Current - Peak Pulse (10/1000µs):
- 8A
- 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)
P4KE36 FAQ
1.How can I place an order for P4KE36 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE36 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 P4KE36 reliable?
The price and inventory of P4KE36 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE36 is usually 5 days.
3.What payment methods are accepted for P4KE36?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE36 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE36?
P4KE36 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE36 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 P4KE36?
For technical support, including P4KE36 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE36 requirements.
6.How does Aetrix verify that P4KE36 is sourced from the original manufacturer or authorized distributors?
All P4KE36 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 P4KE36 meets industry standards.
7.What is the process for return or replacement of P4KE36?
All P4KE36 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE36, 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 P4KE36 part is unused and in its original packaging.
Return procedure for P4KE36:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE36 Tags
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