Taiwan Semiconductor Corporation P6KE22H

Overview

P6KE22H 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 22 V, clamps transients to ≤31.9 V at 19 A peak surge current, and delivers sub-1 ps response time from 0 V to V_BR. It is AEC-Q101 qualified and housed in a DO-204AC (DO-15) package for automotive body electronics and industrial control inputs.

For engineers reviewing the P6KE22H datasheet, P6KE22H pinout, P6KE22H application, or P6KE22H equivalent, key selection criteria include its 22 V standoff rating (V_WM = 17.8 V), low dynamic impedance, <1 μA leakage above 10 V, UL 94V-0 molding compound, and AEC-Q101 qualification - all critical for robust ESD and EFT immunity in automotive-grade designs.

Technical Context

The P6KE22H operates as a unidirectional avalanche diode with a single-die DO-204AC structure, optimized for fast clamping of high-energy transients per IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT). Its 10/1000 µs waveform rating of 600 W enables protection against load dump and inductive switching surges without thermal runaway.

Junction temperature range spans −55 °C to +175 °C, supporting under-hood automotive environments. The device exhibits a V_BR min/max of 19.8 V / 24.2 V at 1 mA test current, with a temperature coefficient of 0.092 %/°C - enabling predictable voltage drift across operating conditions.

Key Specifications

Pinout & Package

Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band marking. Dimensions conform to JEDEC DO-15 standard: overall length 4.2–5.2 mm, diameter 2.1–2.7 mm, lead spacing 5.0–7.0 mm. Meets UL 94V-0 flammability and 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 SMAJ22A and 1.5KE22A, the P6KE22H uniquely combines AEC-Q101 qualification, 600 W capability in the compact DO-15 form factor, and a clamping voltage 1.3–1.4 V lower than alternatives - making it optimal for space-constrained, automotive-compliant 24 V protection.

Availability

P6KE22H is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC inputs, LED driver power stages, and smart sensor node power rails requiring stable component supply with full AEC-Q101 traceability.

Supply support for P6KE22H 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 automotive-grade process validation.

The P6KE series was developed specifically for cost-effective, high-reliability transient suppression in automotive and industrial environments - emphasizing AEC-Q101 compliance, robust surge handling, and standardized DO-15 packaging for legacy and new designs alike.

FAQ

What is the AEC-Q101 qualification status of P6KE22H?

The P6KE22H is explicitly AEC-Q101 qualified per the manufacturer's ordering code "H" suffix and documentation (Version P2203, Page 4). This includes full stress testing per AEC-Q101 Rev D - HTOL, temperature cycling, HAST, and mechanical shock - confirming suitability for automotive under-hood and chassis applications. P6KE22H is not a generic variant; qualification applies specifically to this part number.

How does P6KE22H differ from the non-H version P6KE22?

The P6KE22H differs from P6KE22 solely in AEC-Q101 qualification and associated process controls - identical electrical specs (V_WM = 17.8 V, V_BR = 19.8–24.2 V, V_C = 31.9 V), DO-204AC package, and surge rating. The "H" suffix denotes additional screening, lot traceability, and reliability validation required for automotive use; no parameter or performance change exists between the two.

What is the maximum peak pulse current I_PP for P6KE22H at 25°C?

The maximum peak pulse current I_PP for P6KE22H is 19.0 A under 10/1000 µs waveform conditions at T_A = 25°C, as specified in the Electrical Specifications table (Page 2). This value derates linearly above 25°C per the Pulse Derating Curve (Fig.2), reaching ~13.3 A at 100°C ambient.

Can P6KE22H be used in bidirectional configurations?

No - P6KE22H is a unidirectional TVS diode, indicated by its single cathode band marking and absence of "CA" or "C" suffix. Bidirectional operation requires parts like P6KE22CA (which has symmetrical V_BR in both directions). Using P6KE22H in reverse-biased AC applications risks permanent failure due to forward conduction during negative half-cycles.

What is the junction capacitance of P6KE22H at zero bias?

The junction capacitance of P6KE22H is not specified in the provided documentation. Figure 5 shows typical C_J curves for the P6KE family versus breakdown voltage, but no numeric value is given for the 22 V variant. For signal-line ESD protection where capacitance matters (e.g., USB, CAN), consult Taiwan Semiconductor's SPICE model or request characterization data directly - C_J is typically >100 pF for DO-15 TVS diodes in this voltage range.