Taiwan Semiconductor Corporation P4KE62C

Overview

P4KE62C from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 62V nominal breakdown voltage, 89V maximum clamping voltage at 4.7A peak pulse current, 400W peak pulse power rating per 10/1000μs waveform, and DO-204AL (DO-41) axial package - deployed in automotive lighting control modules to absorb load-dump transients.

For engineers reviewing the P4KE62C datasheet, P4KE62C pinout, P4KE62C application, or P4KE62C equivalent, key selection criteria include bidirectional clamping symmetry, low leakage (<1μA at 50.2V), fast response (<5ns), AEC-Q101 qualification, and compatibility with 175°C junction temperature operation in harsh environments.

Technical Context

The P4KE62C operates as a voltage-clamped shunt protector: during overvoltage events exceeding its 55.8–68.2V breakdown range, it avalanches to divert surge current away from downstream circuitry. Its bidirectional structure ensures identical VBR, VC, and IPPM specifications in both polarities - critical for AC-coupled or floating signal line protection.

It complies with ANSI/IEEE C62.35 for transient suppression, supports 10/1000μs surge testing, and maintains stable performance across -55°C to +175°C operating junction temperature. The device exhibits a 0.104%/°C VBR temperature coefficient and meets UL 94V-0 flammability and RoHS/halogen-free requirements.

Key Specifications

Pinout & Package

Package: DO-204AL (DO-41), axial-leaded, glass-passivated case with pure tin-plated leads solderable per J-STD-002; polarity marked by cathode band (not applicable for bidirectional P4KE62C - no polarity marking required).

Key Features

Applications

Equivalent & Alternatives

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

Compared with P4KE62C, SMAJ64CA offers compact SMT integration but reduced surge margin, while 1.5KE62CA delivers greater robustness at the cost of board area and thermal mass - P4KE62C balances 400W capability, AEC-Q101 compliance, and axial through-hole manufacturability for mid-tier automotive and industrial use.

Availability

P4KE62C is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O protection, AC motor drive feedback lines, and smart meter communication ports requiring stable component supply, long-term lifecycle support, and AEC-Q101 qualified parts.

Supply support for P4KE62C 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 - headquartered in Hsinchu, Taiwan, with global distribution and AEC-Q101 validation capabilities.

The P4KE series targets cost-sensitive, high-reliability transient suppression in automotive, industrial, and consumer applications - engineered for robust 400W surge handling, tight parameter tolerances, and full regulatory compliance out-of-the-box.

FAQ

What is the clamping voltage of P4KE62C and how is it measured?

The P4KE62C has a maximum clamping voltage (VC) of 89 V, measured at a peak pulse current (IPPM) of 4.7 A under the standard 10/1000 μs double-exponential surge waveform. This value represents the highest voltage that appears across the P4KE62C terminals during a defined transient event - critical for ensuring downstream components remain within their absolute maximum ratings.

Is P4KE62C unidirectional or bidirectional, and how does that affect circuit placement?

P4KE62C is a bidirectional TVS diode, indicated by the "C" suffix, meaning it provides symmetrical clamping in both polarities. Unlike unidirectional variants (e.g., P4KE62A), P4KE62C has no cathode marking and requires no orientation during placement - ideal for AC-coupled lines, floating sensors, or any application where voltage polarity may reverse.

Does P4KE62C meet automotive reliability standards?

Yes, P4KE62C is AEC-Q101 qualified when ordered with the "H" suffix (e.g., P4KE62CH), confirming compliance with stress tests including high-temperature reverse bias, temperature cycling, and ESD. The base P4KE62C variant shares identical electrical specs and construction - qualification status depends on ordering code per Taiwan Semiconductor's documentation.

What is the maximum operating temperature for P4KE62C?

The P4KE62C supports a junction temperature range of -55°C to +175°C, enabling reliable operation in under-hood automotive environments, industrial motor controls, and other high-thermal-stress applications. Derating applies above 25°C ambient per the steady-state power derating curve in the official datasheet.

How does the leakage current of P4KE62C compare to similar TVS diodes?

P4KE62C specifies reverse leakage current (ID) of less than 1 μA at its working stand-off voltage of 50.2 V - competitive with industry-standard 400W TVS diodes. This low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes quiescent power loss in battery-powered systems using the P4KE62C.