Taiwan Semiconductor Corporation P6KE100

Overview

P6KE100 from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a nominal breakdown voltage of 100 V, clamps transients to ≤144 V at 4.3 A peak surge current, and delivers fast response (<1.0 ps from 0 V to V_BR), with <1 μA reverse leakage at 81 V stand-off voltage.

For engineers reviewing the P6KE100 datasheet, P6KE100 pinout, P6KE100 application, or P6KE100 equivalent, key selection criteria include its DO-204AC (DO-15) axial package, unidirectional polarity, 175 °C junction rating, and suitability for automotive-grade surge immunity per AEC-Q101 (when ordered as P6KE100H).

Technical Context

The P6KE100 operates as a silicon avalanche diode, leveraging controlled reverse-biased breakdown to shunt high-energy transients away from downstream circuitry. Its clamping action begins at V_BR = 90–110 V (tested at 1 mA), with a maximum clamping voltage V_C = 144 V at I_PP = 4.3 A under the standardized 10/1000 μs waveform.

It exhibits low dynamic impedance and a temperature coefficient of V_BR = 0.106 %/°C, enabling stable clamping performance across industrial temperature ranges (−55 °C to +175 °C). The device is rated for non-repetitive 600 W surge dissipation and supports steady-state power dissipation of 5 W at 75 °C with specified PCB mounting conditions.

Key Specifications

Pinout & Package

DO-204AC (DO-15) is a standard axial-lead package with cathode indicated by a band. Leads are pure tin-plated and solderable per J-STD-002. Polarity is unidirectional: anode (unmarked end), cathode (banded end).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMBJ100A and 1.5KE100A, the P6KE100 offers optimal balance of proven through-hole reliability, AEC-Q101 qualification path (as P6KE100H), and precise 600 W clamping performance-making it ideal for cost-sensitive, high-volume automotive and industrial power protection where DO-15 mounting is established.

Availability

P6KE100 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, LED lighting drivers, and DC power supply input stages requiring stable component supply and long-term obsolescence management.

Supply support for P6KE100 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 thyristors, with global distribution and AEC-Q101 qualification capabilities.

The P6KE series belongs to TSC's high-reliability transient suppression portfolio, engineered specifically for robust overvoltage protection in automotive, industrial, and lighting applications where consistent clamping and thermal stability are critical.

FAQ

What is the maximum clamping voltage of the P6KE100 under surge conditions?

The P6KE100 has a maximum clamping voltage (V_C) of 144 V when subjected to a 4.3 A peak pulse current (I_PP) using the standard 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events. The P6KE100 maintains this clamping performance consistently due to its low dynamic impedance and stable avalanche characteristics.

Is the P6KE100 unidirectional or bidirectional?

The P6KE100 is a unidirectional transient voltage suppressor, meaning it conducts only in reverse bias (cathode positive relative to anode) and blocks forward current like a standard rectifier diode. Its marking includes a cathode band, and it is intended for DC line protection where polarity is fixed. For bidirectional protection, the P6KE100CA variant would be required-but that part is not the P6KE100.

Does the P6KE100 meet AEC-Q101 qualification?

The base P6KE100 is not AEC-Q101 qualified; however, the variant P6KE100H (ordered with "H" suffix) is explicitly qualified per AEC-Q101 Rev D for automotive applications. This qualification includes stress testing for temperature cycling, humidity, mechanical shock, and accelerated life, confirming suitability for under-hood and chassis-mounted electronics. Always specify P6KE100H when automotive compliance is required.

What is the standoff voltage (V_WM) of the P6KE100, and why does it matter?

The standoff voltage (V_WM) of the P6KE100 is 81.0 V - the maximum DC or continuous peak reverse voltage the device can block without exceeding 1 μA leakage. This parameter ensures the P6KE100 remains inactive during normal operation, avoiding power loss or interference, while still triggering reliably above 90 V (V_{BR min}). It directly determines compatibility with system operating voltages, e.g., 72 V nominal battery systems.

Can the P6KE100 be used in place of the 1.5KE100A?

The P6KE100 and 1.5KE100A share the same DO-15 package and similar electrical specs (V_BR, V_C, V_WM), but they differ in surge rating: the 1.5KE100A is rated for 1500 W, while the P6KE100 is rated for 600 W. Substituting P6KE100 for 1.5KE100A is acceptable only if the application's surge threat level does not exceed 600 W. Using P6KE100 in a 1.5KE100A-design may compromise protection margin under severe transients.