Taiwan Semiconductor Corporation SF26GH

Overview

SF26GH from Taiwan Semiconductor is a 400V, 2A AEC-Q101-qualified super fast rectifier diode in DO-204AC (DO-15) package, featuring 35ns reverse recovery time, 1.30V forward voltage at 2A/25°C, and 50A surge capability - deployed in automotive-grade DC-DC converters and switching inverters.

For engineers reviewing the SF26GH datasheet, SF26GH pinout, SF26GH application, or SF26GH equivalent, key selection criteria include its 400V repetitive peak reverse voltage, AEC-Q101 qualification status, 1.30V VF at rated current, thermal resistance (R_θJA = 65°C/W), and DO-15 mechanical compatibility with high-reliability power conversion designs.

Technical Context

This super fast rectifier uses a glass-passivated silicon junction to achieve low forward voltage and rapid carrier recombination. Its 35ns trr and 20pF junction capacitance at 1MHz/4V support high-frequency switching up to several hundred kHz in hard-switched topologies.

The device operates across –55°C to +150°C junction temperature range and delivers 50A non-repetitive surge current under 8.3ms half-sine conditions. Its pure tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.

Key Specifications

Pinout & Package

DO-204AC (DO-15) package with axial leads: cathode indicated by band; no internal terminals beyond anode/cathode; lead finish is pure tin per J-STD-002.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH2R04G and MUR240, the SF26GH uniquely combines AEC-Q101 qualification, DO-15 form factor, and 35ns recovery in a single 400V/2A device - enabling drop-in replacement in space-constrained automotive modules without sacrificing reliability or high-frequency performance.

Availability

SF26GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switching inverters, and renewable energy charge controllers requiring stable component supply and long-term lifecycle assurance.

Supply support for SF26GH 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 SF2xG family was designed specifically for high-reliability, high-frequency power conversion - emphasizing AEC-Q101 qualification, low-loss rectification, and robust packaging for under-hood and factory-floor environments.

FAQ

What is the peak repetitive reverse voltage rating for SF26GH?

The SF26GH has a peak repetitive reverse voltage (V_RRM) rating of 400 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version H2105), where SF26G is explicitly listed under the 400 V column. It defines the maximum reverse-bias voltage the SF26GH can block continuously without breakdown under normal operating conditions.

Is SF26GH qualified to AEC-Q101 standards?

Yes, SF26GH is AEC-Q101 qualified. The "H" suffix in the ordering code (SF26GH) explicitly denotes AEC-Q101 qualification per Taiwan Semiconductor's Ordering Information table. This includes stress testing for temperature cycling, humidity bias, and mechanical shock - making SF26GH suitable for automotive power electronics where reliability under harsh conditions is mandatory.

What is the forward voltage of SF26GH at 2A and 25°C?

The forward voltage (V_F) of SF26GH is 1.30 V at I_F = 2 A and T_J = 25°C. This value is specified in the Electrical Specifications table under the SF25G–SF26G row for the "MAX" column. It reflects the conduction loss under nominal DC load and is critical for calculating thermal rise and system efficiency in power supply designs using SF26GH.

What package type does SF26GH use, and what are its key mechanical features?

SF26GH uses the DO-204AC (DO-15) axial package. Key mechanical features include pure tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 molding compound, cathode polarity indicated by a band, and a typical weight of 0.400 g. These attributes ensure reliable through-hole assembly and long-term interconnect integrity in vibration-prone environments where SF26GH is deployed.

Does SF26GH have a specified reverse recovery time, and how is it measured?

Yes, SF26GH has a maximum reverse recovery time (t_rr) of 35 ns. Per the Electrical Specifications table, this is measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This parameter quantifies switching speed and directly influences turn-off loss and EMI generation - making it essential for selecting SF26GH in high-frequency SMPS and inverter freewheeling applications.