Taiwan Semiconductor Corporation SFAF1005G

Overview

SFAF1005G from Taiwan Semiconductor is a single-die, AEC-Q101-qualified super fast rectifier in ITO-220AC package, rated for 10 A average forward current, 300 V repetitive peak reverse voltage (V_RRM), and 150 A non-repetitive surge current (I_FSM). It delivers 1.300 V forward voltage at 10 A and 25°C, with 35 ns reverse recovery time and 140 pF junction capacitance - optimized for high-efficiency DC/DC converters and freewheeling paths in automotive-grade switching power supplies.

For engineers reviewing the SFAF1005G datasheet, SFAF1005G pinout, SFAF1005G application, or SFAF1005G equivalent, key selection criteria include its 300 V V_RRM, 1.300 V V_F at 10 A, 35 ns t_rr, ITO-220AC thermal performance (R_θJC = 4°C/W), and AEC-Q101 qualification for under-hood automotive use.

Technical Context

The SFAF1005G employs a glass-passivated silicon die to achieve fast recovery (t_rr ≤ 35 ns) and low conduction loss, enabling high-frequency operation in SMPS topologies. Its 300 V V_RRM and 150 A I_FSM support robust transient handling in boost, buck-boost, and flyback converters.

Thermally, the ITO-220AC package provides direct case-to-heatsink mounting with R_θJC = 4°C/W, allowing sustained 10 A operation up to T_J = 150°C. The device's 140 pF junction capacitance minimizes switching losses during turn-off in hard-switched applications.

Key Specifications

Pinout & Package

Package: ITO-220AC - insulated TO-220 variant with electrically isolated tab, matte tin-plated leads (J-STD-002 compliant), UL 94V-0 molding compound, and 0.56 N·m maximum mounting torque. Polarity marked on device body.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH10R06DJF and VS-10ETX03-M3, the SFAF1005G offers balanced 300 V/10 A/35 ns performance with AEC-Q101 qualification - making it optimal for cost-sensitive, thermally constrained automotive and industrial converters where both surge robustness and mid-frequency switching efficiency matter.

Availability

SFAF1005G is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial switching inverters, and motor drive freewheeling paths requiring stable component supply, traceable sourcing, and lifecycle continuity.

Supply support for SFAF1005G 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 automotive, industrial, and consumer markets since 1979.

The SFAF1005G belongs to TSC's AEC-Q101-qualified super fast rectifier family, engineered for high-reliability power conversion in harsh environments - emphasizing low V_F, fast t_rr, and robust thermal performance in ITO-220AC packaging.

FAQ

What is the repetitive peak reverse voltage (V_RRM) of the SFAF1005G?

The SFAF1005G has a repetitive peak reverse voltage (V_RRM) of 300 V, confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version H2105). This rating defines the maximum allowable reverse-biased voltage the device can block continuously without breakdown. It is specifically assigned to the SFAF1005G within the SFAF1001G–SFAF1008G series, distinguishing it from lower- and higher-voltage variants like the SFAF1004G (200 V) and SFAF1006G (400 V).

Is the SFAF1005G AEC-Q101 qualified?

Yes, the SFAF1005G is AEC-Q101 qualified, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification applies to the base part number SFAF1005G and is further reinforced by the ordering code suffix "H" (e.g., SFAF1005GH) indicating AEC-Q101 compliance. The qualification covers stress tests including temperature cycling, humidity bias, and mechanical shock - validating suitability for automotive power electronics.

What is the forward voltage (V_F) of the SFAF1005G at 10 A and 25°C?

The forward voltage (V_F) of the SFAF1005G is 1.300 V at 10 A and 25°C, per the Electrical Specifications table in the official datasheet. This value is measured under pulsed conditions (PW = 0.3 ms) and represents typical conduction loss under nominal operating conditions. It is higher than the 0.975 V of the SFAF1004G (200 V version) due to increased doping compensation for higher voltage blocking capability.

What package type does the SFAF1005G use, and is the tab electrically isolated?

The SFAF1005G uses the ITO-220AC package, which features an electrically isolated metal tab. As specified in the Mechanical Data section, the ITO-220AC construction provides insulation between the internal die and the external heatsink-mounting surface - eliminating the need for thermal interface insulators. This isolation is critical for high-voltage applications where the cathode or anode must remain galvanically separated from the heatsink potential.

What is the reverse recovery time (t_rr) of the SFAF1005G, and under what test conditions is it measured?

The reverse recovery time (t_rr) of the SFAF1005G is 35 ns, measured under the conditions IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, as documented in the Electrical Specifications table. These standardized test conditions ensure consistent comparison across fast rectifier families. The 35 ns value reflects the device's super fast recovery performance, enabling efficient operation in switching power supplies operating up to 500 kHz without significant reverse recovery loss.