Taiwan Semiconductor Corporation SFS1001G

Overview

SFS1001G from Taiwan Semiconductor is a 10A, 50V super fast surface-mount rectifier in TO-263AB (D2PAK) package, featuring 0.975V forward voltage at 5A/25°C, 125A surge capability, and 2°C/W junction-to-case thermal resistance. It serves as a freewheeling or output rectifier in high-frequency DC-DC converters.

For engineers reviewing the SFS1001G datasheet, SFS1001G pinout, SFS1001G application, or SFS1001G equivalent, key selection criteria include its 50V V_RRM, dual-die configuration, 35ns reverse recovery time, J-STD-020 Level 1 moisture sensitivity, and RoHS/halogen-free compliance for industrial power conversion designs.

Technical Context

The SFS1001G integrates two fast-recovery diode dies in a single TO-263AB thermally optimized package, enabling high-current conduction with low forward loss and minimal switching loss. Its 35ns trr and 70pF junction capacitance support operation in switching-mode supplies up to several hundred kHz.

Designed for surface-mount automated assembly, the device uses matte tin-plated leads compliant with J-STD-002 and passes JESD201 Class 2 whisker testing. Polarity is marked on the case, and the molding compound meets UL 94V-0 flammability rating.

Key Specifications

Pinout & Package

TO-263AB (D2PAK) package with three terminals: Anode 1, Cathode (common), Anode 2 - configured as dual common-cathode diodes. Exposed metal tab is electrically connected to cathode and serves as primary thermal path.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH10R06DJF and MBR1050CT, the SFS1001G uniquely balances 50V-rated low V_F, industry-leading thermal resistance, and SMT-ready qualification - making it optimal for space-constrained, high-efficiency 50V-output DC-DC converters requiring zero bake and robust surge handling.

Availability

SFS1001G is available at Aetrix Electronics and suitable for DC-DC converter output rectification, switching mode inverter freewheeling, and high-frequency buck regulator applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for SFS1001G 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 industrial, computing, and telecom markets since 1979.

The SFS1001G belongs to TSC's Super Fast Rectifier family, engineered specifically for high-frequency, high-efficiency power conversion where low V_F, fast t_rr, and robust thermal performance are critical in surface-mount power supplies.

FAQ

What is the maximum junction temperature rating for the SFS1001G?

The SFS1001G has a maximum junction temperature (T_J) of +150°C, with operational range from –55°C to +150°C. This rating allows reliable use in high-ambient environments such as enclosed industrial power supplies or telecom rectifiers. Derating curves in the official datasheet define allowable current versus case temperature, and the 2°C/W R_θJC enables effective thermal management when mounted on adequate copper area. The SFS1001G must not exceed this limit during steady-state or transient operation.

Is the SFS1001G suitable for automated SMT assembly without pre-baking?

Yes, the SFS1001G is rated J-STD-020 Level 1 for moisture sensitivity, meaning it can be placed and reflowed directly from dry pack without baking. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the UL 94V-0 molding compound ensures process stability. This eliminates production delays and cost associated with moisture mitigation - a key advantage over Level 2 or higher discrete rectifiers. The SFS1001G is fully qualified for high-volume automated placement.

What does the "G" suffix signify in SFS1001G?

The "G" suffix in SFS1001G indicates RoHS-compliant, halogen-free construction per IEC 61249-2-21, using green molding compound. It also denotes compliance with JEDEC J-STD-020 moisture sensitivity Level 1 and JESD201 Class 2 whisker resistance. This suffix distinguishes the environmentally qualified version from legacy non-G variants and confirms suitability for modern eco-conscious electronics manufacturing. All SFS1001G units shipped meet these material and reliability standards.

How is the dual-die configuration of the SFS1001G implemented electrically?

The SFS1001G contains two independent super fast rectifier dies sharing a common cathode connection at the exposed tab (Pin 2). Pins 1 and 3 serve as separate anodes, forming a dual common-cathode structure. This allows use in dual-output supplies, interleaved phases, or redundant paths - unlike single-die TO-263 rectifiers. The SFS1001G's internal layout maintains matched thermal and electrical characteristics between both dies, ensuring balanced current sharing when paralleled or independently driven.

What is the reverse recovery time test condition for the SFS1001G?

The SFS1001G reverse recovery time (t_rr) is specified as 35 ns maximum under the condition: I_F = 0.5 A, I_R = 1.0 A, I_RR = 0.25 A, with measurement per JEDEC standard test circuit (Fig.6 in datasheet). This reflects real-world switching behavior in high-frequency converters. The value is measured at 25°C ambient and remains stable across the –55°C to +125°C junction range. Designers should reference the t_rr curve versus temperature in the SFS1001G datasheet for thermal-aware layout decisions.