Taiwan Semiconductor Corporation SFS1605G

Overview

SFS1605G from Taiwan Semiconductor is a 16A, 500V super fast surface-mount rectifier in TO-263AB (D2PAK) package, featuring dual-die configuration, 1.300V forward voltage at 8A/25°C, 35ns reverse recovery time, and 60pF junction capacitance per diode - used in high-frequency DC-DC converters and freewheeling paths.

For engineers reviewing the SFS1605G datasheet, SFS1605G pinout, SFS1605G application, or SFS1605G equivalent, key selection criteria include its 500V V_RRM, 125A I_FSM, 2.5°C/W R_θJC, JESD201 Class 2 whisker resistance, and RoHS/halogen-free compliance for industrial power conversion designs.

Technical Context

The SFS1605G integrates two fast-recovery silicon dies in a single TO-263AB thermally optimized package, enabling high-current freewheeling with low conduction loss and minimal switching tail current. Its 35ns trr and 60pF CJ support operation up to several hundred kHz in SMPS topologies.

Rated for 150°C maximum junction temperature and 1.41g mass, the device uses matte tin-plated leads compliant with J-STD-002 solderability and J-STD-020 Level 1 moisture sensitivity - eliminating bake requirements prior to reflow.

Key Specifications

Pinout & Package

TO-263AB (D2PAK) package with three terminals: Anode 1, Cathode (common), Anode 2 - configured as dual common-cathode rectifier. Case serves as thermal path and electrical cathode connection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH1605D and IXYS MUR1650CT, the SFS1605G offers superior thermal performance (2.5°C/W), native SMT compatibility, and integrated dual-common-cathode topology - reducing PCB area, parasitic inductance, and assembly steps in high-density power modules.

Availability

SFS1605G is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and industrial power supplies requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for SFS1605G 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 consumer markets since 1979.

The SFS1605G belongs to TSC's Super Fast Surface Mount Rectifier product line, engineered specifically for high-frequency, high-reliability power conversion where low V_F, fast t_rr, and robust thermal performance are critical.

FAQ

What is the maximum junction temperature rating for the SFS1605G?

The SFS1605G has a maximum junction temperature (T_J) of +150°C, with operational range from –55°C to +150°C. This rating enables reliable use in enclosed industrial power supplies and automotive under-hood auxiliary converters where ambient temperatures exceed 100°C. The SFS1605G maintains specified electrical parameters within this full range when thermal design respects the 2.5°C/W R_θJC limit.

Does the SFS1605G support automated SMT placement?

Yes, the SFS1605G is explicitly designed for automated placement, as confirmed in its official features list. Its TO-263AB (D2PAK) package, matte tin-plated leads, and J-STD-020 Level 1 moisture sensitivity eliminate pre-bake requirements and ensure compatibility with standard reflow profiles. The SFS1605G is supplied in 800-unit tape-and-reel format optimized for pick-and-place machines.

What is the reverse recovery time (t_rr) of the SFS1605G and under what test conditions?

The SFS1605G has a reverse recovery time (t_rr) of 35 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per diode. This value is specified in the Electrical Specifications table and applies to both dies. The SFS1605G's consistent 35 ns t_rr across its voltage grade family enables predictable timing behavior in high-frequency SMPS designs without derating.

Is the SFS1605G halogen-free and RoHS compliant?

Yes, the SFS1605G is RoHS compliant and halogen-free per IEC 61249-2-21, as stated in its official features list. The "G" suffix in SFS1605G denotes green compound packaging material. These compliance attributes are verified and documented in Taiwan Semiconductor's product change notices and material declarations - confirming suitability for export-controlled and environmentally regulated end equipment.

How does the dual-die configuration of the SFS1605G affect PCB layout compared to two discrete diodes?

The dual-die common-cathode configuration of the SFS1605G consolidates two anodes and one shared cathode into a single TO-263AB footprint, eliminating interconnect traces between discrete devices. This reduces layout parasitics, saves ~30% board area versus two TO-263AB diodes, and ensures matched thermal and electrical characteristics. The SFS1605G's integrated structure also avoids current imbalance issues seen in paralleled discretes, improving reliability in high-current freewheeling paths.