Taiwan Semiconductor Corporation P6KE150A A0G

Overview

P6KE150A A0G from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 150V nominal breakdown voltage (VBR = 143–158 V), 128 V maximum standoff voltage (VWM), 207 V clamping voltage at 3.0 A peak surge current, and DO-204AC (DO-15) axial package - used in automotive power supply input stages and industrial sensor interface protection.

For engineers reviewing the P6KE150A A0G datasheet, P6KE150A A0G pinout, P6KE150A A0G application, or P6KE150A A0G equivalent, key selection criteria include clamping performance under 10/1000 µs surges, low leakage (<1 µA @ 128 V), AEC-Q101 qualification eligibility, thermal derating above 25°C, and compatibility with lead-free reflow and J-STD-002 soldering standards.

Technical Context

The P6KE150A A0G operates as a silicon avalanche diode with fast response time (<1.0 ps from 0 V to VBR), low dynamic impedance, and stable junction temperature range of –55°C to +175°C. Its unidirectional configuration provides reverse-biased clamping only, requiring correct polarity alignment relative to protected circuit ground.

It delivers 600 W non-repetitive peak pulse power per 10/1000 µs waveform, with thermal derating linearly applied above TA = 25°C per Fig.2, and supports steady-state dissipation of 5 W at TA = 75°C on 5 × 5 mm copper pads. The device meets UL 94V-0 flammability and IEC 61249-2-21 halogen-free requirements.

Key Specifications

Pinout & Package

DO-204AC (DO-15) axial package with cathode band marking; leads are pure tin-plated and solderable per J-STD-002. Device is unidirectional - cathode terminal must be connected toward positive rail or protected node.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient voltage suppression applications.

Compared with Littelfuse P6KE150A, the Taiwan Semiconductor P6KE150A A0G offers identical protection specs in the same DO-15 package but with halogen-free construction and UL recognition; versus Vishay 1.5KE150A, it provides tighter clamping and smaller footprint at the cost of lower thermal mass.

Availability

P6KE150A A0G is available at Aetrix Electronics and suitable for automotive body control modules, industrial programmable logic controllers, LED lighting drivers, and telecom power supplies requiring stable component supply and traceable sourcing.

Supply support for P6KE150A A0G 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 headquartered in Hsinchu, Taiwan, specializing in discrete power devices, TVS diodes, rectifiers, and thyristors since 1979.

The P6KE series targets cost-sensitive, high-reliability transient suppression in automotive, industrial, and consumer power systems - emphasizing robust surge handling, low leakage, and regulatory compliance without premium packaging.

FAQ

What is the maximum clamping voltage of the P6KE150A A0G under standard test conditions?

The P6KE150A A0G has a maximum clamping voltage (VC) of 207 V when subjected to a 10/1000 µs surge waveform at 3.0 A peak current (IPP). This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.

Is the P6KE150A A0G suitable for automotive applications requiring AEC-Q101 qualification?

The P6KE150A A0G itself is not AEC-Q101 qualified; however, the functionally identical P6KE150AH (with "H" suffix) is AEC-Q101 qualified and shares the same die, package, and electrical specifications. For automotive use, specify P6KE150AH - the A0G suffix denotes ammo box packaging, not qualification status.

What is the standoff voltage rating (VWM) of the P6KE150A A0G, and how does it relate to system operating voltage?

The P6KE150A A0G has a maximum standoff voltage (VWM) of 128 V, meaning it remains in high-impedance blocking mode up to this DC or RMS voltage. System operating voltage must be ≤128 V to avoid excessive leakage; for a 120 VDC bus, this provides ~6% margin - sufficient for normal operation while allowing headroom for ripple and drift.

Does the P6KE150A A0G have polarity sensitivity, and how is it marked?

Yes, the P6KE150A A0G is unidirectional and polarity-sensitive. It features a cathode band (dark stripe) on the DO-204AC (DO-15) package body - the banded end is the cathode and must be connected toward the positive side of the protected line. Reverse installation will cause forward conduction and failure under normal bias.

What is the junction temperature range and thermal derating behavior of the P6KE150A A0G?

The P6KE150A A0G supports a junction temperature range of –55°C to +175°C. Its 600 W peak pulse power is rated at TA = 25°C and derates linearly above that point per Fig.2 in the datasheet - approximately 4.5 W/°C reduction, reaching zero at ~135°C ambient on standard PCB mounting. This defines usable surge capacity in real-world thermal environments.