Diodes Incorporated SBR20A60CT-G

Overview

SBR20A60CT-G from Diodes Incorporated is a 20A dual common-cathode Super Barrier Rectifier rated for 60V peak reverse voltage, with typical forward voltage of 0.56V at 20A and 25°C, 0.79V at 20A and 125°C, and leakage current ≤100μA at 60V and 125°C. It uses patented SBR® technology to deliver soft, fast switching and low conduction loss in high-efficiency DC/DC converters and automotive power supplies.

For engineers reviewing the SBR20A60CT-G datasheet, SBR20A60CT-G pinout, SBR20A60CT-G application, or SBR20A60CT-G equivalent, key selection criteria include its 0.47–0.79V forward voltage range across temperature, 180A non-repetitive surge rating, TO-220AB package thermal resistance of 2°C/W (junction-to-case), AEC-Q101 qualification eligibility (via pin-compatible SBR20A60CTBQ-13-G), and RoHS-compliant green construction.

Technical Context

This dual-diode rectifier integrates two independent SBR® junctions in a single TO-220AB thermally optimized package, enabling synchronous rectification replacement in 12V–48V input power stages. Its soft recovery minimizes EMI during turn-off, while high-temperature stability ensures consistent VF and IR performance up to +150°C junction temperature.

The device operates as a common-cathode configuration-pins 1 and 2 are anodes, pin 3 is shared cathode-supporting center-tapped transformer or dual-phase output topologies. Its 2°C/W R_θJC enables 10A per leg derating to 7.5A at +100°C ambient with standard heatsinking.

Key Specifications

Pinout & Package

Package: TO-220AB, 3-terminal through-hole plastic case with isolated tab (non-conductive mounting surface). Mounting tab is electrically connected to cathode (pin 3).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current, low-VF rectifier applications.

Compared with SBR20A60CTB-G, the SBR20A60CT-G provides easier manual assembly and superior heatsink contact in prototyping and low-volume production; versus SBRT20A60CT, it trades minor VF/IR improvements for broader legacy compatibility and cost efficiency in commercial-grade systems.

Availability

SBR20A60CT-G is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial 48V telecom power, and server VRM output stages requiring stable component supply, RoHS/Green compliance, and TO-220AB mechanical robustness.

Supply support for SBR20A60CT-G 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-efficiency power management, signal integrity, and protection solutions for automotive, industrial, and computing markets.

The SBR® Super Barrier Rectifier product line was engineered to replace Schottky diodes in medium-voltage (30–100V) applications where thermal stability and surge robustness are critical-enabling higher efficiency without thermal runaway risk.

FAQ

What is the maximum continuous current rating per anode of SBR20A60CT-G?

The SBR20A60CT-G is rated for 10A average forward current per anode (20A total device rating) at TA = +25°C with adequate heatsinking. Derating curves show 7.5A per anode is sustainable at +100°C ambient with R_θJA = 16°C/W, based on Figure 1 in DS30965 Rev. 12-2.

Is SBR20A60CT-G pin-compatible with standard TO-220AB dual diodes like MUR1060CT?

No-SBR20A60CT-G uses a common-cathode configuration (anode-anode-cathode), whereas MUR1060CT is common-anode (cathode-cathode-anode). Pin 3 is cathode in SBR20A60CT-G but anode in MUR1060CT; direct substitution would cause short-circuit failure.

Does SBR20A60CT-G require a thermal pad or insulating washer when mounted to a heatsink?

Yes-the metal tab is electrically connected to pin 3 (common cathode). If the heatsink is grounded or at a different potential, a mica or polymer insulating washer plus thermal grease is required to prevent shorting while maintaining thermal performance.

Can SBR20A60CT-G be used in place of a Schottky diode in a 48V solar charge controller?

Yes-its 60V VRRM and 0.56V VF at 20A provide lower conduction loss than many 60V Schottkys while offering superior high-temperature leakage stability (100μA at 125°C vs. >1mA for most Schottkys), making it well-suited for unventilated outdoor enclosures.