Taiwan Semiconductor Corporation P6KE75C

Overview

P6KE75C 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 nominal breakdown voltage of 75 V, clamps transients to ≤108 V at 5.8 A peak surge current, and delivers sub-nanosecond response time (<1.0 ps from 0 V to V_BR) - critical for safeguarding automotive body control modules against ISO 7637-2 pulse 1/2a-induced surges.

For engineers reviewing the P6KE75C datasheet, P6KE75C pinout, P6KE75C application, or P6KE75C equivalent, this page provides verified package mapping (DO-204AC), confirmed clamping performance (V_C = 108 V @ I_PP = 5.8 A), polarity marking details, and AEC-Q101-qualified alternatives for automotive-grade design-in.

Technical Context

The P6KE75C operates as a silicon avalanche diode with unidirectional polarity and single-die construction in a DO-204AC (DO-15) axial package. Its junction exhibits low dynamic impedance and a temperature coefficient of V_BR of 0.105 %/°C, enabling stable clamping across –55 °C to +175 °C operating range.

It meets UL 94V-0 flammability rating and JESD201 Class 2 whisker resistance, with pure tin-plated leads compliant to J-STD-002 solderability. The device sustains non-repetitive 600 W peak pulse power per 10/1000 µs waveform and supports steady-state dissipation of 5 W at T_A = 75 °C on 5 × 5 mm copper pads.

Key Specifications

Pinout & Package

DO-204AC (DO-15) axial package with cathode band marking on one end. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance. Polarity is unidirectional: cathode band denotes the cathode terminal.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMAJ75A and 1.5KE75C, the P6KE75C offers identical clamping performance and package compatibility with Vishay's 1.5KE series but differs from Littelfuse's SMAJ75A in both package geometry and clamping voltage - making 1.5KE75C the preferred drop-in option where DO-15 layout is fixed and AEC-Q101 compliance is required.

Availability

P6KE75C is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, LED driver protection, and USB-C power path designs requiring stable component supply, long-term manufacturability, and AEC-Q101-compliant variants.

Supply support for P6KE75C 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 qualification capabilities.

The P6KE series was developed for cost-effective, high-reliability transient suppression in automotive and industrial power systems - emphasizing robust surge handling, tight thermal stability, and compatibility with automated through-hole assembly.

FAQ

What is the polarity configuration of the P6KE75C?

The P6KE75C is a unidirectional TVS diode with clearly marked cathode band. It conducts only in reverse-bias avalanche mode - meaning it clamps positive transients on the cathode side relative to anode (ground). This configuration prevents forward conduction during normal operation and ensures precise clamping behavior aligned with ISO 7637-2 test requirements. The P6KE75C does not function as a bidirectional device.

Does the P6KE75C meet AEC-Q101 qualification?

The base P6KE75C is not AEC-Q101 qualified; however, the P6KE75CH variant - identified by the "H" suffix in the ordering code - is fully AEC-Q101 qualified per Rev G testing. This includes temperature cycling, humidity bias HAST, mechanical shock, and accelerated life testing. For automotive applications requiring formal qualification, P6KE75CH must be specified and sourced accordingly.

What is the maximum clamping voltage of the P6KE75C under surge conditions?

The P6KE75C clamps to a maximum of 108 V when subjected to a 10/1000 µs surge current of 5.8 A, as specified in the Electrical Specifications table. This value is measured at peak current (I_PP) and represents the upper limit of voltage seen by downstream components during standardized transient events - critical for verifying margin against IC absolute maximum ratings.

Can the P6KE75C be used in surface-mount designs?

No - the P6KE75C is exclusively packaged in the axial DO-204AC (DO-15) through-hole format and is not available in surface-mount variants. For SMT implementations, engineers should consider functionally equivalent devices such as SMAJ75A (DO-214AC) or SMCJ75A (DO-214AB), which share similar electrical specs but require PCB footprint redesign and requalification of solder joint reliability.

How does the P6KE75C compare to the P6KE75A variant?

The P6KE75C has a tighter V_BR tolerance (±10 %, 67.5–82.5 V) versus the P6KE75A (±5 %, 71.3–78.8 V), resulting in higher minimum breakdown voltage and slightly improved noise immunity. Both share identical V_WM (60.7 V), V_C (108 V), and P_PK (600 W). The "C" suffix indicates standard commercial grade; "A" denotes tighter-tolerance grading - selection depends on required precision in clamping onset voltage.