Taiwan Semiconductor Corporation SFAF2003GH

Overview

SFAF2003GH from Taiwan Semiconductor is a 20A, 150V AEC-Q101-qualified super fast rectifier in ITO-220AC package, featuring 35ns reverse recovery time, 0.975V forward voltage at 20A/25°C, and 3°C/W junction-to-case thermal resistance for high-efficiency power conversion in automotive and industrial systems.

For engineers reviewing the SFAF2003GH datasheet, SFAF2003GH pinout, SFAF2003GH application, or SFAF2003GH equivalent, key selection criteria include repetitive peak reverse voltage (150V), surge current rating (200A), junction temperature range (–55°C to +150°C), AEC-Q101 qualification status, and ITO-220AC mechanical compatibility with heatsink mounting.

Technical Context

This super fast rectifier uses glass passivated chip junction technology to achieve low forward voltage and high reliability under repetitive surge stress. Its single-die configuration and 35ns trr support high-frequency switching in DC–DC converters and freewheeling paths where fast turn-off minimizes switching losses.

The device operates across –55°C to +150°C junction temperature, with UL 94V-0 molding compound and matte tin-plated leads compliant with J-STD-002 solderability. Thermal performance is defined by R_θJC = 3°C/W, enabling direct heatsink mounting without thermal interface material in many designs.

Key Specifications

Pinout & Package

Package: ITO-220AC - Insulated TO-220 variant with electrically isolated tab, UL 94V-0 mold compound, and matte tin-plated leads rated for 0.56 N·m mounting torque.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar super fast rectifier applications.

Compared with STTH2003D and MUR2003CT, the SFAF2003GH provides AEC-Q101 qualification, UL recognition, and an electrically isolated tab-critical for automotive and safety-certified industrial designs-while maintaining competitive speed and conduction loss at its 150V rating.

Availability

SFAF2003GH is available at Aetrix Electronics and suitable for automotive power conversion, industrial DC–DC modules, and onboard charger designs requiring stable component supply, AEC-Q101 compliance, and long-term lifecycle support.

Supply support for SFAF2003GH 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, serving global automotive, industrial, and computing markets since 1979.

The SFAF200xG series belongs to TSC's AEC-Q101-qualified super fast rectifier product line, engineered specifically for high-reliability power conversion in harsh-environment applications including engine control, battery management, and industrial motor drives.

FAQ

What is the maximum junction temperature rating for SFAF2003GH?

The SFAF2003GH has a maximum junction temperature (T_J) of +150°C and a minimum of –55°C, verified per AEC-Q101 stress testing. This rating allows reliable operation in under-hood automotive environments and high-ambient industrial enclosures. Derating curves in the official datasheet define allowable forward current versus case temperature, with full 20A supported up to 85°C case temperature.

Is SFAF2003GH pin-compatible with standard TO-220AC rectifiers?

The SFAF2003GH uses the ITO-220AC package, which shares the same outline and lead spacing as TO-220AC but features an electrically isolated metal tab. While mechanical mounting is identical, the isolation eliminates need for insulating washers-unlike non-isolated TO-220AC devices. Therefore, SFAF2003GH is mechanically compatible but electrically distinct from standard TO-220AC rectifiers.

Does SFAF2003GH meet RoHS and halogen-free requirements?

Yes, the SFAF2003GH is RoHS compliant and halogen-free per IEC 61249-2-21. These compliance statements are confirmed in the official Taiwan Semiconductor product documentation (Version J2105) and supported by material declarations. The device uses green molding compound and matte tin-plated leads, both fully aligned with EU and customer-specific environmental specifications.

What is the reverse recovery time (t_rr) specification for SFAF2003GH?

The SFAF2003GH has a maximum reverse recovery time (t_rr) of 35 ns, measured at I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This value is consistent across the SFAF2001G–SFAF2004G subgroup and enables efficient operation in switching power supplies operating up to 500 kHz. The fast recovery reduces switching losses and associated EMI generation.

How does the "H" suffix in SFAF2003GH affect its qualification status?

Per Taiwan Semiconductor's ordering information, the "H" suffix in SFAF2003GH explicitly denotes AEC-Q101 qualification. This means the device has undergone full stress testing-including HTGB, H3TRB, TC, AC/DC life test, and ESD-to meet automotive reliability standards. The base part SFAF2003G lacks this qualification, making SFAF2003GH the only version approved for automotive powertrain and safety-critical applications.