Taiwan Semiconductor Corporation SFA1008G C0G

Overview

SFA1008G from Taiwan Semiconductor is a 10 A, 600 V super fast rectifier diode in TO-220AC package, featuring 1.700 V forward voltage at 10 A and 25°C, 35 ns reverse recovery time, 50 pF junction capacitance at 1 MHz/4 V, and 125 A surge capability - deployed in high-efficiency DC-DC converters and switching inverters.

For engineers reviewing the SFA1008G datasheet, SFA1008G pinout, SFA1008G application, or SFA1008G equivalent, key selection criteria include peak reverse voltage rating (600 V), thermal resistance (3.5 °C/W), AEC-Q101 qualification status, freewheeling diode performance under high dI/dt, and TO-220AC mounting compatibility with heatsink interfaces.

Technical Context

The SFA1008G uses a single-die silicon planar junction structure optimized for super-fast recovery (trr ≤ 35 ns) and low conduction loss at high blocking voltage. Its 600 V V_RRM and 125 A I_FSM support robust operation in hard-switched topologies with repetitive surge stress.

Thermal design is enabled by a low R_θJC of 3.5 °C/W and TO-220AC case geometry suitable for mechanical clamping to heatsinks. The device operates across –55°C to +150°C junction temperature range and meets JESD201 Class 2 whisker resistance.

Key Specifications

Pinout & Package

TO-220AC package: single-ended anode-cathode configuration with isolated metal tab (cathode-connected). Mounting hole centered on tab, leads tinned per J-STD-002, UL 94V-0 molding compound, 1.80 g mass.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH10R06DJF and IXYS MUR1060CT, the SFA1008G offers identical 600 V/10 A/35 ns performance in an isolated-tab TO-220AC package with lower VF than ST's part and simpler single-diode layout than IXYS's dual variant - making it optimal for space-constrained, thermally demanding single-output SMPS designs.

Availability

SFA1008G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and freewheeling applications requiring stable component supply, long-term industrial lifecycle support, and AEC-Q101-compliant alternatives (SFA1008GH).

Supply support for SFA1008G 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 semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and automotive markets since 1979.

The SFA1008G belongs to TSC's Super Fast Rectifier family, engineered for high-efficiency, high-reliability power conversion in space- and thermally constrained applications where low V_F, fast t_rr, and rugged surge capability are critical.

FAQ

What is the maximum junction temperature rating for the SFA1008G?

The SFA1008G has a maximum junction temperature (T_J) rating of +150°C, with operational range from –55°C to +150°C. This allows reliable deployment in high-ambient environments such as enclosed industrial power supplies or under-hood automotive systems when paired with appropriate heatsinking. Derating curves in the datasheet define safe current limits above 25°C ambient.

Is the SFA1008G pin-compatible with other devices in the SFA100xG series?

Yes, all SFA1001G through SFA1008G share identical TO-220AC package dimensions, pinout (anode on lead 1, cathode on tab and lead 2), and mechanical mounting interface. Voltage ratings differ only in internal die design - enabling drop-in replacement across the series when voltage margin and V_F trade-offs are acceptable.

Does the SFA1008G meet automotive qualification standards?

The base SFA1008G is not AEC-Q101 qualified, but the SFA1008GH variant is explicitly qualified per AEC-Q101. Both share identical electrical and thermal specs; the 'H' suffix denotes additional stress testing including temperature cycling, humidity bias, and mechanical shock - required for automotive powertrain and charging applications.

What is the thermal resistance from junction to case (R_θJC) for the SFA1008G?

The SFA1008G has a typical junction-to-case thermal resistance (R_θJC) of 3.5 °C/W, measured under standard mounting conditions with 0.56 N·m torque and thermal interface material. This value enables accurate heatsink sizing - for example, at 10 A and 1.7 V V_F, power dissipation is ~17 W, requiring ≤ 70°C case-to-ambient rise for 150°C max junction temperature.

How does the reverse recovery time (t_rr) of the SFA1008G impact EMI in high-frequency designs?

The SFA1008G's 35 ns reverse recovery time minimizes stored charge removal duration, reducing high-frequency ringing and voltage overshoot during turn-off. In 100–300 kHz converters, this directly lowers radiated EMI amplitude and simplifies filter design compared to standard recovery diodes with >100 ns t_rr, especially in hard-switched topologies with fast dV/dt edges.