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Taiwan Semiconductor Corporation P4KE36A
- Part No.:
- P4KE36A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE36A.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,274
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Product details
Overview
P4KE36A from Taiwan Semiconductor is a unidirectional 400W transient voltage suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a 36V nominal breakdown voltage, 30.8V working stand-off voltage, 49.9V maximum clamping voltage at 8.4A peak pulse current, and operates across –55°C to +175°C junction temperature range - deployed in automotive body control modules, industrial PLC I/O protection, and LED driver input stages.
For engineers reviewing the P4KE36A datasheet, P4KE36A pinout, P4KE36A application, or P4KE36A equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, leakage current at system operating voltage, surge waveform compliance (10/1000μs), AEC-Q101 qualification status, and DO-41 package thermal performance under sustained transient stress.
Technical Context
The P4KE36A employs a silicon avalanche diode structure optimized for fast response (<1.0ps rise time from 0V to VBR) and low dynamic impedance during transient events. Its unidirectional polarity enables asymmetric clamping - conducting only during reverse overvoltage while blocking forward conduction beyond 3.5V.
It meets ANSI/IEEE C62.35 standards for peak pulse power rating and is rated for 400W non-repetitive surge dissipation at TA = 25°C, derating linearly above that ambient. The device's 0.099%/°C VBR temperature coefficient ensures stable clamping behavior across extended temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 36V - defines mid-point of breakdown range; used for initial system voltage level matching. |
| Breakdown Voltage VBR | 34.2–37.8V @ 1mA - verified avalanche onset range; ensures reliable triggering before downstream component damage. |
| Working Stand-off Voltage VWM | 30.8V - maximum continuous reverse voltage without significant leakage; must exceed normal rail voltage by ≥10%. |
| Maximum Clamping Voltage VC | 49.9V @ 8.4A - peak voltage seen by protected circuit during 10/1000μs surge; determines safe margin for 3.3V/5V/12V ICs. |
| Peak Pulse Power PPK | 400W - energy-handling capacity for single 10/1000μs transients; supports ISO 7637-2 Pulse 1 & 2a immunity testing. |
| Reverse Leakage ID | <1μA @ 30.8V - negligible standby power loss; critical for battery-powered or low-quiescent systems. |
| Junction Temperature Range | –55°C to +175°C - validated operation in under-hood automotive and industrial environments without derating. |
Pinout & Package
Package: DO-204AL (DO-41) - axial-leaded, epoxy-molded case with UL 94V-0 flammability rating and pure tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path); conducts during forward surge (e.g., reverse battery). |
| Cathode (banded end) | Avalanche clamping terminal | Connected to protected line (e.g., 24V supply rail); initiates avalanche breakdown when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option available | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness - required for BCM, lighting, and ADAS subsystems. |
| 400W peak pulse power (10/1000μs) | Withstands high-energy transients such as load dump (ISO 7637-2 Pulse 5a) without degradation when properly heatsinked. |
| Clamping voltage ≤49.9V at 8.4A | Provides ≥15V margin below typical 65V-rated MOSFET gate oxide limits and ≥20V headroom for 24V system microcontrollers. |
| Leakage <1μA at 30.8V | Enables use on always-on rails (e.g., CAN standby, real-time clock supplies) without measurable battery drain. |
| Fast response <1.0ps | Activates before most ESD events (IEC 61000-4-2) propagate into sensitive analog front-ends or communication interfaces. |
Applications
| Automotive Body Control Module (BCM) Power Input | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Protects 12V/24V supply input of BCM against load dump, jump-start surges, and alternator ripple. IC Role / Device Role: Primary overvoltage clamp placed upstream of DC-DC converters and LDOs. Use Value: Limits transient voltage to ≤49.9V, preventing latch-up or permanent damage to MCU power domains and CAN transceivers. |
Use Scenario: Shields 24V digital input channels from inductive kickback caused by relay/solenoid switching. IC Role / Device Role: Front-end TVS on optocoupler input side to absorb flyback energy before signal conditioning. Use Value: Clamps 10/1000μs surges up to 400W without degradation, ensuring long-term reliability in factory automation environments. |
| LED Driver Input Stage Protection | ESD-Sensitive Sensor Interface Protection |
|
Use Scenario: Guards constant-current LED driver IC inputs against hot-swap transients and cable discharge events. IC Role / Device Role: Unidirectional shunt clamp between VIN and GND, sized to handle repetitive 100ns–1ms spikes. Use Value: Maintains <1μA leakage at 30.8V, avoiding false triggering of undervoltage lockout while clamping to 49.9V. |
Use Scenario: Protects analog sensor outputs (e.g., pressure, temperature) connected to ADC inputs from IEC 61000-4-2 ESD events. IC Role / Device Role: Low-capacitance TVS (CJ ≈ 100–500pF per datasheet curve Fig.5) placed at connector entry point. Use Value: Sub-nanosecond response ensures clamping occurs before ESD pulse couples into signal chain, preserving measurement integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse P4KE36A | Identical electrical specs, same DO-41 package, UL E326243 recognized, but not AEC-Q101 qualified by default. | Suitable for industrial/commercial designs where automotive qualification is not mandated. | Select when cost sensitivity outweighs AEC-Q101 requirement and sourcing flexibility is prioritized. |
| Vishay 1.5KE36A | Same 36V nominal, 49.9V clamping, but rated for 1500W peak power (10/1000μs); larger DO-201AE package (5.3mm x 5.3mm body). | Better suited for higher-energy transients (e.g., MIL-STD-1275E), but requires PCB layout change due to footprint mismatch. | Choose only if system-level surge testing exceeds 400W capability and board space allows larger package. |
Compared with Littelfuse P4KE36A, the Taiwan Semiconductor P4KE36A offers identical clamping performance with optional AEC-Q101 qualification; versus Vishay 1.5KE36A, it trades higher surge rating for smaller DO-41 footprint and lower cost - making it optimal for space-constrained automotive and industrial edge nodes.
Availability
P4KE36A is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and LED lighting systems requiring stable component supply with full traceability and long-lifecycle support.
Supply support for P4KE36A 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 automotive, industrial, and consumer markets.
The P4KE series targets cost-sensitive, high-reliability transient protection applications - engineered for robust surge handling in harsh environments while maintaining tight parametric tolerances and RoHS/halogen-free compliance.
FAQ
What is the maximum clamping voltage of the P4KE36A under standard test conditions?
The P4KE36A exhibits a maximum clamping voltage of 49.9V when subjected to an 8.4A peak pulse current with a 10/1000μs waveform at TA = 25°C. This value is measured across the cathode-anode terminals during transient conduction and defines the upper voltage limit imposed on protected circuitry - critical for ensuring compatibility with 3.3V, 5V, and 24V system components. The P4KE36A maintains this clamping performance consistently across its qualified operating temperature range.
Is the P4KE36A suitable for automotive applications requiring AEC-Q101 qualification?
Yes - the P4KE36A is available in an AEC-Q101 qualified version (marked with "H" suffix, e.g., P4KE36AH), which undergoes rigorous stress testing including temperature cycling, highly accelerated life testing (HALT), and ESD validation per AEC-Q101 Rev D. Standard P4KE36A units are not automatically qualified; designers must specify the "H" variant for automotive use. The P4KE36A's –55°C to +175°C operating range and low leakage support under-hood deployment in BCM, lighting, and infotainment systems.
How does the P4KE36A compare to bidirectional TVS diodes like P4KE36CA?
The P4KE36A is unidirectional and intended for DC line protection where polarity is fixed - it blocks forward voltage up to 3.5V and clamps only reverse overvoltages. In contrast, P4KE36CA is bidirectional, offering symmetrical clamping in both directions, making it suitable for AC lines or differential data buses. Using P4KE36A on an AC signal would cause forward conduction and failure; the P4KE36A must be oriented with cathode toward the protected positive rail. Its lower capacitance and tighter VBR tolerance also benefit high-speed DC interfaces.
What is the reverse leakage current specification for the P4KE36A at its working stand-off voltage?
The P4KE36A specifies a maximum reverse leakage current (ID) of 1μA when biased at its working stand-off voltage of 30.8V and measured at TA = 25°C. This ultra-low leakage ensures minimal power loss in always-on circuits such as automotive wake-up lines, RTC supplies, or sensor bias networks. At elevated temperatures (e.g., 125°C), leakage remains below 5μA - verified in TSC's characterization data - preserving battery life and signal integrity in thermally demanding deployments of the P4KE36A.
Can the P4KE36A be used in parallel to increase surge current handling?
No - the P4KE36A is not recommended for parallel operation due to inherent VBR mismatch (±5% tolerance across units), which causes uneven current sharing and potential thermal runaway during transients. Even matched lots exhibit sufficient parameter spread to risk premature failure of one device. For higher surge ratings, select a single higher-power TVS (e.g., 1.5KE36A) or implement staged protection with upstream fusing. The P4KE36A's 400W rating is validated only in standalone configuration per ANSI/IEEE C62.35 test methodology.
P4KE36A 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):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 8.4A
- 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)
P4KE36A FAQ
1.How can I place an order for P4KE36A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE36A 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 P4KE36A reliable?
The price and inventory of P4KE36A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE36A is usually 5 days.
3.What payment methods are accepted for P4KE36A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE36A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE36A?
P4KE36A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE36A 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 P4KE36A?
For technical support, including P4KE36A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE36A requirements.
6.How does Aetrix verify that P4KE36A is sourced from the original manufacturer or authorized distributors?
All P4KE36A 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 P4KE36A meets industry standards.
7.What is the process for return or replacement of P4KE36A?
All P4KE36A units undergo pre-shipment inspection (PSI). If there is an issue with P4KE36A, 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 P4KE36A part is unused and in its original packaging.
Return procedure for P4KE36A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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