Taiwan Semiconductor Corporation P6KE110H

Overview

P6KE110H from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-side overvoltage clamping in power supply input stages and automotive ECU protection circuits. It features a nominal breakdown voltage of 110 V, maximum clamping voltage of 158 V at 3.9 A peak surge current, 89.2 V stand-off voltage, and operates across -55°C to +175°C junction temperature range.

For engineers reviewing the P6KE110H datasheet, P6KE110H pinout, P6KE110H application, or P6KE110H equivalent, this device is selected for high-energy transient suppression in 24V/48V automotive power rails, industrial PLC I/O protection, and DC-link surge immunity where AEC-Q101 qualification, low dynamic impedance (<1 Ω typical), and sub-1 ns response time are critical.

Technical Context

The P6KE110H implements a silicon avalanche diode structure optimized for fast turn-on under 10/1000 µs surge waveforms. Its unidirectional configuration provides asymmetric conduction - forward-biased operation up to 100 A IFSM and reverse-biased clamping above 99 V VBR min with 0.107 %/°C temperature coefficient.

Designed for DO-204AC (DO-15) axial package mounting, it delivers 600 W non-repetitive peak pulse power with thermal derating above 25°C ambient per Fig.2, and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements.

Key Specifications

Pinout & Package

Package: DO-204AC (DO-15), axial leaded, epoxy-molded case with cathode band marking. 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 voltage suppression applications.

Compared with SMBJ110A and 1.5KE110A, the P6KE110H offers AEC-Q101 qualification and axial DO-15 compatibility for legacy automotive harness interfaces, while delivering precise 158 V clamping at 3.9 A-critical for protecting modern low-voltage tolerant PMICs without overdesigning surge margin.

Availability

P6KE110H is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, telecom DC power feeds, and renewable energy charge controllers requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for P6KE110H 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, and rectifiers with global distribution and AEC-Q101 certification capabilities.

The P6KE series targets cost-effective, high-reliability transient suppression in automotive and industrial power systems, emphasizing robust surge handling, tight parameter distribution, and compliance with UL, RoHS, and halogen-free standards.

FAQ

What is the key difference between P6KE110H and P6KE110A?

The P6KE110H is AEC-Q101 qualified and intended for automotive applications, whereas the P6KE110A lacks this qualification and is targeted at industrial or commercial use. Both share identical electrical parameters - V_BR (99–121 V), V_WM (89.2 V), and V_C (158 V) - but only the P6KE110H undergoes extended reliability testing per AEC-Q101 stress conditions. The P6KE110H is the correct choice for under-hood or safety-critical vehicle systems.

Can P6KE110H be used in bidirectional configurations?

No - the P6KE110H is unidirectional and marked with a cathode band; it conducts only when the cathode is positive relative to the anode. For bidirectional protection, TSC offers the P6KE110CA variant. Using P6KE110H in reverse-biased AC applications risks permanent failure due to forward conduction during negative half-cycles, so P6KE110H must be applied strictly in DC polarity-correct installations.

What is the maximum allowable surge repetition rate for P6KE110H?

The P6KE110H is rated for non-repetitive 10/1000 µs surges per JEDEC standards. While no official repetition limit is specified, thermal recovery requires ≥1 minute between pulses at full 600 W rating (per note 3 in Absolute Maximum Ratings). For repetitive transients, derating to ≤100 W average power is recommended, and system-level thermal modeling of the DO-15 package's 50°C/W junction-to-ambient resistance is essential to avoid exceeding 175°C T_J.

How does the 0.107 %/°C temperature coefficient affect P6KE110H performance?

The 0.107 %/°C temperature coefficient means V_BR increases by approximately 0.118 V per °C rise in junction temperature. At 150°C T_J, V_BR shifts from 99–121 V (25°C) to ~105–128 V, maintaining clamping integrity across automotive operating ranges. This predictable drift enables accurate worst-case surge analysis in thermal simulations without abrupt threshold collapse or hysteresis.

Is P6KE110H compatible with lead-free reflow soldering processes?

Yes - the P6KE110H uses pure tin-plated leads compliant with J-STD-002 and rated for standard lead-free reflow profiles (peak 260°C, 10 s max). Its DO-204AC epoxy body meets UL 94V-0 and withstands multiple thermal cycles without delamination or parameter shift. However, axial lead forming must precede soldering to avoid mechanical stress on the glass passivation layer near the die attach region.