Taiwan Semiconductor Corporation SF22GHR0G

Overview

SF22GHR0G from Taiwan Semiconductor is a 2 A, 100 V super fast recovery rectifier diode in DO-204AC (DO-15) package, featuring 35 ns reverse recovery time, 0.95 V forward voltage at 2 A and 25°C, and AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or output rectifier in high-frequency switching power supplies.

For engineers reviewing the SF22GHR0G datasheet, SF22GHR0G pinout, SF22GHR0G application, or SF22GHR0G equivalent, key selection criteria include its 100 V repetitive peak reverse voltage, 50 A surge capability, glass-passivated junction, RoHS- and halogen-free compliance, and thermal resistance of 65°C/W (junction-to-ambient).

Technical Context

This device is a single-die, planar epitaxial silicon rectifier optimized for high-efficiency DC/DC conversion. Its super fast recovery (trr ≤ 35 ns) and low VF enable reduced switching losses in SMPS operating above 50 kHz.

The DO-204AC package supports through-hole mounting with pure tin-plated leads compliant to J-STD-002, and its 16°C/W junction-to-case thermal resistance facilitates effective heat dissipation under continuous 2 A conduction.

Key Specifications

Pinout & Package

DO-204AC (DO-15) package with axial leads: cathode indicated by band; lead finish is pure tin, solderable per J-STD-002; weight ≈ 0.400 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH2R010DJF and MUR210EG, SF22GHR0G uniquely combines AEC-Q101 qualification, halogen-free compliance, and DO-204AC packaging-making it the only drop-in solution for automotive front-end DC/DC where space, regulation, and reliability intersect.

Availability

SF22GHR0G is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial switch-mode power supplies, and LED driver power stages requiring stable component supply across multi-year production cycles.

Supply support for SF22GHR0G 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with global distribution and AEC-Q101 validation capability.

The SF2xG series was designed specifically for high-frequency, high-reliability rectification in automotive and industrial power conversion-emphasizing fast recovery, low loss, and robust packaging for harsh-environment deployment.

FAQ

What is the peak repetitive reverse voltage rating of SF22GHR0G?

The SF22GHR0G has a peak repetitive reverse voltage (VRRM) rating of 100 V. This value is defined per the absolute maximum ratings table in the official Taiwan Semiconductor datasheet (Version H2105). It specifies the maximum reverse-biased voltage the device can block repeatedly without breakdown during normal operation. Exceeding this voltage risks avalanche failure or permanent degradation of the SF22GHR0G junction.

Is SF22GHR0G suitable for automotive applications?

Yes, SF22GHR0G is AEC-Q101 qualified, as confirmed by the "H" suffix in the ordering code and explicitly stated in the features section of the Taiwan Semiconductor datasheet. This qualification validates the SF22GHR0G for use in automotive powertrain, body electronics, and infotainment systems where temperature cycling, humidity, and mechanical shock resistance are critical. The SF22GHR0G's −55°C to +150°C operating range further supports under-hood deployment.

What is the forward voltage drop of SF22GHR0G at rated current?

The forward voltage (VF) of SF22GHR0G is 0.95 V at 2 A and 25°C, per the electrical specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents typical conduction loss behavior. At elevated junction temperatures (e.g., 125°C), VF decreases slightly due to semiconductor physics, but system-level thermal design must ensure the SF22GHR0G remains within its 150°C TJ limit to maintain reliability.

Does SF22GHR0G have halogen-free and RoHS-compliant construction?

Yes, SF22GHR0G meets both RoHS Directive 2011/65/EU and halogen-free requirements per IEC 61249-2-21, as documented in the features list. The molding compound is UL 94V-0 rated, and the pure tin-plated leads comply with J-STD-002 solderability standards. These attributes make the SF22GHR0G acceptable for export to EU, China, and other regulated markets requiring environmental compliance documentation.

What is the reverse recovery time of SF22GHR0G and how is it tested?

The reverse recovery time (trr) of SF22GHR0G is 35 ns maximum, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per the electrical specifications table. This test condition reflects real-world commutation in high-frequency switching circuits. The SF22GHR0G achieves this performance via optimized carrier lifetime control in its epitaxial structure, directly reducing switching loss compared to standard fast rectifiers-critical for maintaining efficiency in 100–500 kHz SMPS designs using the SF22GHR0G.