Taiwan Semiconductor Corporation P6KE100CAH

Overview

P6KE100CAH from Taiwan Semiconductor is a bidirectional 600W transient voltage suppressor (TVS) diode designed for high-energy ESD and surge protection in automotive and industrial power rails. It features a 100V nominal breakdown voltage (VBR min/max: 90–110V), 81V stand-off voltage (VWM), clamping voltage of 144V at 4.3A peak surge current, and AEC-Q101 qualification for under-hood applications.

For engineers reviewing the P6KE100CAH datasheet, P6KE100CAH pinout, P6KE100CAH application, or P6KE100CAH equivalent, this device serves as a robust, unidirectional/bidirectional overvoltage clamp for DC power inputs, CAN bus lines, and sensor interfaces where fast response (<5ns), low leakage (<1μA @ 81V), and high surge immunity per IEC 61000-4-5 are required.

Technical Context

The P6KE100CAH operates as a silicon avalanche diode with bidirectional clamping symmetry - identical VBR, VC, and IPP characteristics in both polarities. Its junction structure enables sub-5ns response to transients while maintaining low dynamic impedance (<0.5Ω typical) across its 600W 10/1000μs surge rating.

Designed for surface-mount compatibility with DO-204AC (DO-15) package constraints, it supports lead-free reflow soldering (J-STD-002 compliant) and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements - critical for automotive-grade reliability under thermal cycling and vibration stress.

Key Specifications

Pinout & Package

Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band marking for polarity identification. Leads are pure tin-plated, RoHS-compliant, and halogen-free per IEC 61249-2-21.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMBJ100CA and 1.5KE100CA, P6KE100CAH uniquely combines AEC-Q101 qualification, DO-15 compactness, and sub-5ns response - making it the only option for space-constrained, safety-critical automotive modules requiring validated reliability and nanosecond-level ESD immunity.

Availability

P6KE100CAH is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, CAN FD communication interfaces, and LED driver input stages requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for P6KE100CAH 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs since 1979.

The P6KE series targets cost-sensitive, high-reliability transient protection in automotive and industrial markets - emphasizing AEC-Q101 compliance, halogen-free materials, and consistent DO-204AC form factor across 6.8V–440V voltage grades.

FAQ

What does the "CA" suffix indicate in P6KE100CAH?

The "CA" suffix in P6KE100CAH denotes bidirectional configuration - meaning the device provides symmetrical clamping for both positive and negative transients across its terminals. This differs from "A"-suffixed unidirectional variants (e.g., P6KE100AH), which clamp only in reverse bias and require correct anode/cathode orientation. P6KE100CAH is functionally identical to P6KE100C but adds AEC-Q101 qualification indicated by the "H" suffix.

Is P6KE100CAH compatible with lead-free reflow soldering processes?

Yes, P6KE100CAH is fully compatible with lead-free reflow soldering. Its pure tin-plated leads meet J-STD-002 solderability standards, and the DO-204AC package withstands peak reflow temperatures up to 260°C for 10 seconds per JEDEC J-STD-020. The epoxy molding compound is rated UL 94V-0 and supports standard Pb-free assembly without delamination or voiding.

How does the 144V clamping voltage (VC) of P6KE100CAH relate to system-level surge testing?

The 144V clamping voltage (VC) of P6KE100CAH is measured at 4.3A peak surge current under the standardized 10/1000μs waveform. In system-level IEC 61000-4-5 testing, this VC value directly determines the maximum voltage imposed on downstream components during a 2Ω/12Ω coupled surge event - ensuring protected ICs rated for ≤150V absolute maximum survive Level 4 (4kV) tests when properly decoupled.

Can P6KE100CAH be used in place of P6KE100C in existing designs?

Yes, P6KE100CAH is a direct replacement for P6KE100C in most applications, as both share identical electrical specifications, DO-204AC packaging, and bidirectional functionality. The "H" suffix adds AEC-Q101 qualification - meaning P6KE100CAH meets automotive stress-test requirements that P6KE100C does not. No layout or schematic changes are needed, though PPAP documentation must be updated to reflect the qualified part.

What is the maximum allowable mounting pad size for P6KE100CAH to achieve rated 600W surge capability?

To achieve the full 600W 10/1000μs surge rating, P6KE100CAH must be mounted on 5 × 5 mm copper pads per terminal, as specified in the Absolute Maximum Ratings table. Smaller pads reduce thermal dissipation and cause premature failure under repeated surges; pad size directly impacts junction temperature rise during pulse events and must be verified per IPC-7351B land pattern guidelines for DO-204AC.