Taiwan Semiconductor Corporation P6KE82CA

Overview

P6KE82CA from Taiwan Semiconductor is a bidirectional 600W transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a nominal breakdown voltage of 82 V, clamps transients to ≤113 V at 5.5 A peak surge current, and delivers fast response (<5 ns) with low dynamic impedance. It is used in automotive power supply rails, industrial I/O interfaces, and DC-DC converter input protection.

For engineers reviewing the P6KE82CA datasheet, P6KE82CA pinout, P6KE82CA application, or P6KE82CA equivalent, key selection criteria include its bidirectional configuration, DO-204AC (DO-15) package, 113 V clamping voltage at 5.5 A, -55°C to +175°C operating junction temperature, and AEC-Q101 qualification status.

Technical Context

The P6KE82CA operates as a silicon avalanche diode configured in a symmetrical bipolar structure, enabling identical clamping behavior in both forward and reverse directions. Its electrical characteristics-including V_BR (min/max), V_WM = 70.1 V, and I_PP = 5.5 A-are defined per ANSI/IEEE C62.35 and validated under 10/1000 µs surge waveform conditions.

It exhibits a maximum temperature coefficient of V_BR of 0.105 %/°C and junction capacitance <100 pF at 0 V (1 MHz), making it suitable for moderate-speed data line protection where capacitive loading must remain low. The device is rated for non-repetitive peak pulse power of 600 W and steady-state power dissipation of 5 W at 75°C ambient with specified PCB pad layout.

Key Specifications

Pinout & Package

DO-204AC (DO-15) package: axial-leaded, cylindrical glass-passivated body with cathode band marking for unidirectional variants; P6KE82CA is bidirectional and marked without polarity band. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMBJ85CA and 1.5KE82CA, the P6KE82CA uniquely combines AEC-Q101 qualification, axial DO-15 form factor, and 113 V clamping at 5.5 A-making it optimal for legacy-compatible automotive and high-reliability industrial designs requiring through-hole assembly and traceable qualification.

Availability

P6KE82CA is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and DC-DC converter input protection requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for P6KE82CA 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 MOSFETs, with global distribution and AEC-Q101-compliant production lines.

The P6KE series was developed specifically for high-energy transient suppression in automotive and industrial power systems, emphasizing robustness, repeatable clamping, and qualification-ready reliability under harsh environmental stress.

FAQ

What does the 'CA' suffix indicate in P6KE82CA?

The 'CA' suffix in P6KE82CA denotes a bidirectional configuration-meaning the device provides symmetrical transient suppression in both polarities, with identical breakdown and clamping characteristics in either direction. This eliminates PCB polarity constraints and simplifies layout for AC-coupled or floating signal lines. The P6KE82CA is not polarity-sensitive, unlike unidirectional 'A' or base variants.

Is P6KE82CA AEC-Q101 qualified?

Yes, the P6KE82CA is AEC-Q101 qualified when ordered with the 'H' suffix (i.e., P6KE82CAH). Per TSC's ordering information, the 'H' designation indicates full AEC-Q101 validation-including temperature cycling, HAST, and mechanical shock testing-required for automotive under-hood and chassis applications. Standard P6KE82CA is not automatically qualified unless explicitly ordered as P6KE82CAH.

What is the maximum clamping voltage of P6KE82CA and at what current is it specified?

The maximum clamping voltage (V_C) of P6KE82CA is 113 V, measured at a peak pulse current (I_PP) of 5.5 A under the standard 10/1000 µs double-exponential surge waveform. This value represents the upper limit of voltage seen by protected circuitry during worst-case transient events and is guaranteed across temperature and production lot per TSC's electrical specifications table.

Can P6KE82CA replace P6KE82A in a design?

No-P6KE82CA and P6KE82A are not interchangeable. P6KE82A is unidirectional (anode/cathode polarity matters), while P6KE82CA is bidirectional (no polarity marking). Substituting one for the other risks incorrect clamping behavior: P6KE82A would fail to protect reverse-polarity transients, and P6KE82CA may allow unintended conduction in DC-biased unidirectional paths. Always verify circuit topology and polarity requirements before replacement.

What is the junction-to-ambient thermal resistance (R_θJA) of P6KE82CA in DO-204AC package?

TSC does not publish a specific R_θJA value for P6KE82CA in the DO-204AC package. Instead, thermal performance is defined via derating curves: the device sustains 600 W peak power only for short pulses, and steady-state power dissipation is rated at 5 W when mounted on 5 × 5 mm copper pads at 75°C ambient. For thermal modeling, designers should reference Fig.2 (Pulse Derating Curve) and apply PCB copper area rules per JEDEC standards-not R_θJA alone.