Taiwan Semiconductor Corporation P6KE36A A0G

Overview

P6KE36A A0G 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 36 V, clamps transients to ≤49.9 V at 12.6 A peak surge current, and maintains <1 μA reverse leakage above 30.8 V standoff voltage - deployed in automotive lighting control modules, industrial PLC I/O protection, and PoE-powered device front-ends.

For engineers reviewing the P6KE36A A0G datasheet, P6KE36A A0G pinout, P6KE36A A0G application, or P6KE36A A0G equivalent, key selection criteria include its DO-15 package compatibility, 10/1000 μs surge rating, unidirectional polarity marking, and AEC-Q101 qualification path - all critical for EFT immunity design and board-level ESD hardening.

Technical Context

The P6KE36A A0G operates as a silicon avalanche diode with precise Zener-like breakdown behavior under transient overvoltage conditions. Its junction structure delivers low dynamic impedance (<1 Ω typical), enabling rapid clamping response (<1 ps rise time from 0 V to V_BR) and stable voltage regulation during 600 W, 10/1000 μs surges.

Thermal performance is defined by a 175 °C maximum junction temperature and derating curve per Fig.2; electrical stability across temperature is ensured by a 0.099 %/°C V_BR temperature coefficient. The device is rated for 100 A non-repetitive forward surge (8.3 ms half-sine) and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance standards.

Key Specifications

Pinout & Package

DO-204AC (DO-15) package: axial-leaded, molded epoxy case with cathode band marking for unidirectional polarity. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance. Weight ≈ 0.400 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMAJ36A and 1.5KE36A, the P6KE36A A0G offers optimal balance of 600 W surge capability, DO-15 manufacturability, and sub-1 μA leakage - making it preferred for cost-sensitive, high-volume 24 V automotive and industrial control designs where PCB real estate and thermal budget are constrained.

Availability

P6KE36A A0G is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O protection, and PoE-powered endpoint designs requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.

Supply support for P6KE36A A0G 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power devices, TVS diodes, rectifiers, and MOSFETs for industrial and automotive markets.

The P6KE series was developed to deliver high-reliability, high-surge-capability TVS protection in standard axial packages for cost-sensitive, high-volume applications - particularly targeting 12/24 V automotive subsystems and industrial control interfaces.

FAQ

What is the maximum clamping voltage of the P6KE36A A0G under rated surge conditions?

The P6KE36A A0G clamps to a maximum of 49.9 V when subjected to its rated 12.6 A peak pulse current (I_PP) using the 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and is measured per ANSI/IEEE C62.35 standards. The clamping performance directly protects downstream components such as microcontrollers and CAN transceivers in 24 V systems. Designers must verify layout parasitics do not elevate effective clamping voltage beyond this spec.

Is the P6KE36A A0G suitable for bidirectional transient protection?

No, the P6KE36A A0G is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. It conducts only during reverse-bias overvoltage events. For bidirectional protection, TSC offers the P6KE36CA variant. Using P6KE36A A0G in AC or bipolar signal paths risks forward conduction and failure; always confirm polarity alignment in schematic and layout before deploying P6KE36A A0G.

Does the P6KE36A A0G meet AEC-Q101 qualification requirements?

The P6KE36A A0G is part of the AEC-Q101-qualified P6KE series - specifically, the "H"-suffixed variants (e.g., P6KE36AH) are fully certified. While P6KE36A A0G itself carries the A0G packing code (1,500-unit ammo box), its die and process flow are qualified per AEC-Q101. Customers requiring certified test reports should specify P6KE36AH for full documentation traceability, though P6KE36A A0G shares identical electrical and mechanical specs.

What is the thermal derating behavior of the P6KE36A A0G above 25°C ambient?

The P6KE36A A0G follows the standard derating curve shown in Fig.2 of its datasheet: peak pulse power decreases linearly from 600 W at 25°C to zero at 175°C junction temperature. At 75°C ambient (with 9.5 mm lead length), steady-state power dissipation is rated at 5 W. Designers must calculate actual junction temperature using θ_JA (estimated ~60 °C/W for DO-15 on FR-4) and ensure T_J stays ≤175°C during repeated surge events.

How does the P6KE36A A0G compare to the older P6KE36 in terms of electrical performance?

The P6KE36A A0G improves upon the base P6KE36 with tighter V_BR tolerance (34.2–37.8 V vs. 32.4–39.6 V), lower clamping voltage (49.9 V vs. 52.0 V), and reduced temperature coefficient (0.099 %/°C vs. 0.099 %/°C - same, but tighter distribution). Both share DO-15 packaging and 600 W rating, but P6KE36A A0G's enhanced consistency supports more deterministic protection margins in safety-critical 24 V rail designs.