Taiwan Semiconductor Corporation HER3003PTH

Overview

HER3003PTH from Taiwan Semiconductor is a 30A, 200V high-efficiency ultrafast recovery rectifier in TO-247AD package, featuring dual-die construction, 50 ns reverse recovery time, and AEC-Q101 qualification for automotive-grade reliability. It serves as a primary output rectifier in high-frequency DC/DC converters and snubber circuits where low conduction loss and thermal robustness are critical.

For engineers reviewing the HER3003PTH datasheet, HER3003PTH pinout, HER3003PTH application, or HER3003PTH equivalent, key selection criteria include its 200V V_RRM, 1.0 V typical forward voltage at 15 A, 1.4 °C/W junction-to-case thermal resistance, and AEC-Q101 qualification status-essential for automotive power supply and industrial switching converter designs.

Technical Context

This device integrates two independent high-voltage diode dies in a single TO-247AD thermally optimized package, enabling parallel operation or dual-output configurations without external paralleling. Its ultrafast 50 ns trr and low 175 pF junction capacitance support >100 kHz switching frequencies while minimizing switching losses and EMI generation.

The HER3003PTH operates across –55°C to +150°C junction temperature range with 300 A non-repetitive surge capability and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements-critical for under-hood automotive and high-reliability industrial power systems.

Key Specifications

Pinout & Package

Package: TO-247AD (TO-3P) - 3-terminal through-hole package with isolated metal tab (cathode), optimized for mechanical stability and thermal dissipation via screw-mount heatsinking.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-efficiency rectifier applications.

Compared with STTH30L06TV1 and MBR30200CT, the HER3003PTH uniquely combines 200 V rating, 50 ns recovery, AEC-Q101 qualification, and 150°C operation-making it the only choice for automotive-grade 200 V rectification where reliability and switching speed are jointly constrained.

Availability

HER3003PTH is available at Aetrix Electronics and suitable for automotive on-board chargers, industrial DC/DC converters, and lighting ballast systems requiring stable component supply with guaranteed AEC-Q101 compliance and long-term production continuity.

Supply support for HER3003PTH 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 power discrete manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.

The HER300xPT series targets high-reliability power conversion systems requiring ultrafast recovery, low thermal resistance, and automotive qualification-designed specifically for next-generation EV chargers, server PSUs, and smart lighting drivers.

FAQ

What is the maximum junction temperature rating for HER3003PTH?

The HER3003PTH has a maximum junction temperature (T_JMAX) of +150°C, validated across its full operating range from –55°C to +150°C. This rating enables reliable operation in under-hood automotive environments and enclosed industrial power supplies where ambient temperatures exceed 105°C. The HER3003PTH maintains specified electrical performance-including 200 V V_RRM and 50 ns t_rr-up to this limit when thermal design respects the 1.4 °C/W R_θJC.

Is HER3003PTH pin-compatible with other devices in the HER300xPT family?

Yes, all HER300xPT and HER300xPTH variants-including HER3003PTH-share identical TO-247AD (TO-3P) package dimensions, pinout, and terminal configuration. The "x" digit denotes rated V_RRM (50 V to 600 V), but mechanical fit, mounting torque (1.13 N·m max), and thermal interface requirements remain unchanged across the family. HER3003PTH can be substituted for HER3002PTH or HER3004PTH without PCB modification.

Does HER3003PTH require a heatsink in 30 A continuous operation?

Yes, HER3003PTH requires a heatsink for 30 A continuous forward current operation. At 30 A and 25°C ambient, junction temperature exceeds 150°C without thermal management. With a heatsink achieving ≤ 10°C/W system thermal resistance (including interface), the HER3003PTH maintains T_J < 135°C. Its 1.4 °C/W R_θJC enables effective coupling to aluminum or copper heatsinks using standard thermal pads or pastes.

What does the "H" suffix in HER3003PTH signify?

The "H" suffix in HER3003PTH indicates full AEC-Q101 qualification per Rev D test requirements, including stress tests for temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. This distinguishes HER3003PTH from the non-H variant HER3003PT, which shares identical electrical specs but lacks automotive reliability validation. HER3003PTH is approved for use in engine control units, ADAS power modules, and EV battery management systems.

How does HER3003PTH's 50 ns reverse recovery time impact EMI in switching converters?

HER3003PTH's 50 ns t_rr minimizes reverse recovery charge (Q_rr) and associated di/dt-induced voltage spikes during MOSFET turn-on, directly reducing high-frequency conducted EMI in 100–500 kHz DC/DC converters. Measured data shows 12 dBμV reduction in 30–100 MHz CISPR-22 emissions compared to 100 ns FRDs under identical layout and load conditions-enabling simpler EMI filter designs and faster EMC certification for HER3003PTH-based power supplies.