Taiwan Semiconductor Corporation SF68G R0G

Overview

SF68G from Taiwan Semiconductor is a 6A, 600V super fast rectifier diode in DO-201AD package, featuring 1.700V max forward voltage at 6A/25°C, 35ns reverse recovery time, 50pF junction capacitance, and AEC-Q101 qualification option (SF68GH). It serves as a primary output rectifier in high-frequency DC-DC converters.

For engineers reviewing the SF68G datasheet, SF68G pinout, SF68G application, or SF68G equivalent, key selection criteria include peak reverse voltage rating, forward voltage drop under load, thermal resistance (R_θJL = 5°C/W), surge current capability (150A I_FSM), and automotive-grade reliability validation.

Technical Context

The SF68G employs a single-die silicon PN junction optimized for high-speed switching in hard-commutated topologies. Its 600V V_RRM supports 400V AC input bridge configurations and 380V DC bus applications with margin.

With 35ns trr and low Q_rr, it minimizes switching losses in 100–500kHz SMPS designs. The DO-201AD package provides robust thermal conduction (R_θJL = 5°C/W) and meets UL 94V-0 flammability requirements.

Key Specifications

Pinout & Package

DO-201AD axial-leaded package with cathode band marking; leads are pure tin plated per J-STD-002, compliant with JESD201 Class 2 whisker test, weight ≈1.20g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-6EWH06FN-M3 and MUR660CT, the SF68G delivers superior axial-leaded integration for space-constrained PCBs, lower V_F than MUR660CT, and faster recovery than MUR660CT-making it optimal for compact, high-efficiency 100–300kHz SMPS designs requiring no heatsink.

Availability

SF68G is available at Aetrix Electronics and suitable for DC-DC converters, industrial motor drives, automotive on-board chargers, and renewable energy inverters requiring stable component supply and long-term manufacturability.

Supply support for SF68G 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, specializing in power rectifiers, TVS diodes, and MOSFETs since 1979.

The SF68G belongs to TSC's SF6xG super fast rectifier family, engineered specifically for high-frequency switching power supplies where low forward voltage, fast recovery, and automotive-grade reliability are mandatory.

FAQ

What is the maximum junction temperature rating for SF68G?

The SF68G has a maximum junction temperature (T_J) of +150°C, verified per absolute maximum ratings table in the G2105 datasheet. This allows operation in high-ambient environments such as enclosed industrial enclosures or under-hood automotive locations when paired with appropriate thermal design using its 5°C/W junction-to-lead thermal resistance. Derating curves confirm 6A continuous current is sustainable up to 100°C ambient with minimal copper area.

Is SF68G RoHS and halogen-free compliant?

Yes, SF68G is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the "Features" and "Mechanical Data" sections of the G2105 datasheet. The molding compound contains no brominated flame retardants, and the pure tin-plated leads meet J-STD-002 solderability standards. This compliance applies to all SF6xG variants including SF68G.

Does SF68G have AEC-Q101 qualification?

The base SF68G is not AEC-Q101 qualified; however, the SF68GH variant-identical in electrical and thermal specifications-is explicitly AEC-Q101 qualified per the "Ordering Information" table in the G2105 datasheet. The "H" suffix denotes automotive qualification, and both parts share the same DO-201AD package, marking code, and performance parameters.

What is the reverse recovery time (t_rr) of SF68G and how is it measured?

The SF68G has a maximum reverse recovery time (t_rr) of 35ns, measured under conditions of I_F = 0.5A, I_R = 1.0A, and I_rr = 0.25A, as specified in the "Electrical Specifications" table. This value is validated using the test circuit shown in Figure 6 of the G2105 datasheet and reflects performance at 25°C ambient, critical for minimizing switching loss in high-frequency converters.

What packaging options are available for SF68G?

SF68G is supplied in DO-201AD package with two standard packing formats: 1,250 units per tape-and-reel (ordering code SF68G) and 500 units per ammo box (ordering code SF68G A0G). AEC-Q101 qualified versions use suffixes "H" (SF68GH) and "HA0G", maintaining identical packaging dimensions and mechanical data per the "Ordering Information" section.