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Taiwan Semiconductor Corporation P4KE150A
- Part No.:
- P4KE150A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE150A.pdf
- Description:
- TVS DIODE 128VWM 207VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,092
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Product details
Overview
P4KE150A 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 150V nominal breakdown voltage (VBR min/max = 143V/158V at 1mA), 128V working stand-off voltage (VWM), and clamps to ≤207V at 2.0A peak pulse current under 10/1000μs waveform - used in automotive body control modules, industrial PLC I/O protection, and telecom power supply surge suppression.
For engineers reviewing the P4KE150A datasheet, P4KE150A pinout, P4KE150A application, or P4KE150A equivalent, key selection criteria include its DO-41 package compatibility, low leakage (<1μA @ 128V), fast response (<1.0ps from 0V to VBR), AEC-Q101 qualification option (P4KE150AH), and precise clamping performance critical for IEC 61000-4-5 Level 4 compliance.
Technical Context
The P4KE150A operates as a silicon avalanche diode with unidirectional polarity, leveraging controlled reverse-biased breakdown to shunt transient energy away from protected circuitry. Its junction temperature range spans –55°C to +175°C, and it maintains stable VBR temperature coefficient of 0.108%/°C - enabling reliable operation in under-hood automotive environments and high-ambient industrial settings.
It delivers 400W non-repetitive peak pulse power per ANSI/IEEE C62.35 standard at 10/1000μs waveform, with steady-state power dissipation rated at 1W when mounted on 5×5 mm copper pads. The device exhibits low dynamic impedance during clamping and forward voltage of 3.5V at 25A (per unidirectional spec), supporting robust surge handling without latch-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT=1mA | 143–158 V - ensures predictable, repeatable breakdown onset above normal operating voltage |
| VWM | 128 V - maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VC @ IPPM=2.0A | ≤207 V - clamping voltage limiting downstream component stress during 10/1000μs transients |
| PPK | 400 W - peak surge power handling capability compliant with IEC 61000-4-5 test conditions |
| ID @ VWM | <1 μA - negligible standby current enabling low-power system design and battery-backed circuits |
| TJ max | +175 °C - supports placement near heat-generating components in engine control units and motor drives |
| Package | DO-204AL (DO-41) - industry-standard axial leaded package with tin-plated leads, RoHS/halogen-free |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, epoxy-molded case with cathode band marking. Lead finish: pure tin, solderable per J-STD-002. Weight: ~0.300 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry point during forward conduction | Connected to ground or low-side return path in unidirectional TVS configuration |
| Cathode (banded end) | Transient current sink during reverse breakdown | Connected to protected line (e.g., 12V rail); clamps to anode when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified variant available | P4KE150AH meets automotive-grade reliability requirements for under-hood applications |
| Fast response time | <1.0 ps rise-to-breakdown enables protection against nanosecond-scale ESD and EFT events |
| Low clamping ratio (VC/VBR) | ~1.45 (207V/143V) ensures minimal overvoltage margin during surge events |
| UL 94V-0 flammability rating | Molding compound resists ignition and flame propagation in safety-critical enclosures |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling, ensuring long-term solder joint integrity |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 12V/24V microcontroller I/O lines from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input terminal and ground to clamp spikes before reaching MCU GPIO. Use Value: Withstands 400W surges per ISO 7637-2 Pulse 5a while maintaining <1μA leakage at 128V stand-off - preserving signal integrity and MCU sleep current. |
Use Scenario: Safeguarding 24V digital input channels against field-wiring induced surges and inductive kickback. IC Role / Device Role / Timing Role: Primary-level surge suppression on terminal block side, upstream of optocoupler input stage. Use Value: Clamps to ≤207V within 1ps, limiting voltage seen by optocoupler LED to safe levels and extending system MTBF in factory automation environments. |
| Telecom Power Supply Front-End | LED Driver Output Line Protection |
Use Scenario: Secondary-side DC output protection in AC/DC adapters supplying PoE-powered devices. IC Role / Device Role / Timing Role: Standoff-rated TVS across +VOUT/GND to absorb coupling transients from Ethernet magnetics or nearby switching noise. Use Value: 128V VWM allows use on 48V systems with 20% tolerance; 207V VC prevents overvoltage damage to downstream DC-DC converters and PHY ICs. |
Use Scenario: Preventing catastrophic failure of constant-current LED drivers due to open-circuit transients during hot-plug or cable disconnect. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output terminals to clamp inductive flyback voltage spikes. Use Value: 400W peak power rating absorbs energy from >100mH inductive loads; DO-41 package enables through-hole mounting directly at connector interface. |
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 P4KE150A | Identical electrical specs, same DO-41 package, UL E326243 recognized, but not AEC-Q101 qualified by default | Preferred for commercial/industrial designs where automotive qualification is not required | Select when cost sensitivity outweighs AEC-Q101 need; verify sourcing continuity vs. Taiwan Semiconductor's longer production history on this series |
| ON Semiconductor 1.5KE150A | Same 150V nominal, 400W rating, but larger DO-201AE package; higher thermal mass but requires PCB rework | Better suited for high-reliability power supplies needing enhanced thermal derating margin | Choose only if board layout allows DO-201AE footprint; otherwise P4KE150A offers direct DO-41 drop-in replacement with identical pin spacing |
Compared with Littelfuse P4KE150A and ON Semi 1.5KE150A, the Taiwan Semiconductor P4KE150A provides identical clamping performance in the smallest axial package, with optional AEC-Q101 qualification - making it optimal for space-constrained automotive and industrial modules requiring proven long-lifecycle availability.
Availability
P4KE150A is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and telecom power supply front-end designs requiring stable component supply, long-term lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for P4KE150A 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, specializing in power management, protection, and signal conditioning devices since 1979.
The P4KE series belongs to TSC's transient voltage suppressor product line, engineered specifically for high-energy surge immunity in automotive, industrial, and communications infrastructure - emphasizing AEC-Q101 readiness, tight parameter distribution, and extended temperature reliability.
FAQ
What is the maximum clamping voltage of the P4KE150A under standard 10/1000μs surge conditions?
The P4KE150A clamps to a maximum of 207 V when subjected to a 2.0 A peak pulse current with a 10/1000μs waveform, as specified in the manufacturer's datasheet. This value is measured at the rated test current and defines the upper voltage limit imposed on protected circuitry during transient events. The P4KE150A achieves this clamping performance while maintaining low dynamic impedance and sub-1ps response time - critical for safeguarding sensitive 150V-rated components.
Is the P4KE150A suitable for bidirectional transient protection?
No, the P4KE150A is a unidirectional TVS diode intended for DC line protection where polarity is fixed. Bidirectional operation requires the CA-suffixed variant (e.g., P4KE150CA). The P4KE150A has a cathode band marking and conducts only in reverse breakdown; applying reverse polarity beyond its forward voltage rating (3.5 V at 25 A) may cause permanent damage. Always confirm polarity alignment during PCB layout for the P4KE150A.
Does the P4KE150A meet automotive qualification standards?
The base P4KE150A is not automatically AEC-Q101 qualified; however, the variant P4KE150AH - identified by the "H" suffix in the ordering code - is fully AEC-Q101 qualified and tested per stress test conditions including temperature cycling, humidity bias, and mechanical shock. For automotive applications such as body control modules or infotainment power rails, specify P4KE150AH to ensure compliance. The P4KE150A itself remains suitable for industrial and commercial use.
What is the leakage current specification for the P4KE150A at its working stand-off voltage?
The P4KE150A exhibits a maximum reverse leakage current (ID) of 1 μA when biased at its working stand-off voltage of 128 V, measured at 25°C ambient. This ultra-low leakage preserves battery life in always-on systems and avoids false triggering in high-impedance sensing circuits. The P4KE150A maintains this specification across its full operating temperature range (–55°C to +175°C), with leakage increasing predictably per Arrhenius behavior but remaining below 10 μA at maximum junction temperature.
Can the P4KE150A be used in parallel for higher surge current handling?
No - the P4KE150A is not recommended for parallel connection due to parameter mismatch (especially VBR tolerance of ±5%) causing current imbalance and premature failure of the lower-VBR unit. For higher peak pulse current requirements, select a single higher-rated device (e.g., 1.5KE150A) or implement staged protection with upstream fusing. The P4KE150A is designed for discrete, point-of-load protection; its 2.0 A IPPM rating must be applied individually per device in the final design.
P4KE150A 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):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 2A
- 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)
P4KE150A FAQ
1.How can I place an order for P4KE150A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE150A 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 P4KE150A reliable?
The price and inventory of P4KE150A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE150A is usually 5 days.
3.What payment methods are accepted for P4KE150A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE150A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE150A?
P4KE150A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE150A 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 P4KE150A?
For technical support, including P4KE150A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE150A requirements.
6.How does Aetrix verify that P4KE150A is sourced from the original manufacturer or authorized distributors?
All P4KE150A 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 P4KE150A meets industry standards.
7.What is the process for return or replacement of P4KE150A?
All P4KE150A units undergo pre-shipment inspection (PSI). If there is an issue with P4KE150A, 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 P4KE150A part is unused and in its original packaging.
Return procedure for P4KE150A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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