Diodes Incorporated SBR60A300PT

Overview

SBR60A300PT from Diodes Incorporated is a 60A, 300V Super Barrier Rectifier in TO-247AB package, designed as a high-current, low-V_F power rectifier for primary-side AC/DC conversion and DC-DC output stages. Confirmed parameters: V_RRM = 300 V, I_O = 60 A @ T_C = 140°C, V_F = 0.89 V @ 30 A / 25°C, t_rr = 32 ns (typ), R_θJC = 1.0 °C/W per leg. Used in industrial SMPS front-end rectification.

For engineers reviewing the SBR60A300PT datasheet, SBR60A300PT pinout, SBR60A300PT application, or SBR60A300PT equivalent, key selection criteria include forward voltage drop at high junction temperature, soft-switching behavior under di/dt stress, thermal resistance to heatsink, and surge current rating for line transient immunity.

Technical Context

This dual-leg super barrier rectifier integrates two independent anode-cathode paths in a single TO-247AB package, enabling interleaved or parallel rectification without external paralleling. Its patented super barrier structure replaces traditional PN junctions with metal-semiconductor interfaces, delivering lower V_F than standard Schottky diodes while maintaining higher V_RRM and superior high-temperature leakage stability.

The device operates with soft reverse recovery (t_rr ≤ 50 ns, I_RR/I_F = 0.25) and exhibits <2 μA leakage at 300 V and 125°C - critical for maintaining efficiency in high-density, thermally constrained power supplies where conduction loss and switching EMI must be jointly minimized.

Key Specifications

Pinout & Package

Package: TO-247AB - 3-terminal molded plastic case (UL 94V-0), with isolated mounting tab (cathode-connected), lead-free bright tin plating, and polarity marked on body.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current super barrier rectifier applications.

Compared with VS-60CPH03-M3 and MUR6030CT, SBR60A300PT uniquely balances low V_F, soft recovery, and high-temperature leakage control - making it optimal for next-gen high-efficiency, high-power-density AC/DC and DC/DC converters where thermal headroom and EMI compliance are co-constrained.

Availability

SBR60A300PT is available at Aetrix Electronics and suitable for industrial power supplies, renewable energy inverters, and EV onboard chargers requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for SBR60A300PT 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-performance power management, signal integrity, and protection solutions for industrial, computing, and automotive markets.

The SBR® Super Barrier Rectifier product line was developed to replace conventional Schottky and fast recovery diodes in high-current, high-efficiency power conversion systems where low V_F, soft switching, and thermal robustness are simultaneously required.

FAQ

What is the maximum junction temperature rating for SBR60A300PT?

The SBR60A300PT has a rated operating junction temperature range of –65°C to +175°C. Its absolute maximum T_J is 175°C, validated under conditions of I_O = 60 A at T_C = 140°C with proper heatsinking per the datasheet's thermal test setup (black aluminum heatsink, 37 mm × 15 mm × 50 mm).

Is SBR60A300PT suitable for use in synchronous rectification circuits?

No - SBR60A300PT is a passive rectifier, not a controlled switch. It cannot replace MOSFETs in synchronous rectification. However, its low V_F and soft recovery make it ideal as a freewheeling or auxiliary rectifier alongside synchronous FETs in hybrid topologies like active clamp forward or LLC with secondary-side SR assist.

Does the TO-247AB package have an electrically isolated tab?

Yes - the mounting tab is internally connected to the common cathode (Terminal 2). Electrical isolation from the heatsink is required unless the heatsink is referenced to the cathode potential. Standard practice uses mica or ceramic washers with thermal grease to maintain isolation while enabling thermal transfer.

How does SBR60A300PT compare to standard Schottky rectifiers at 125°C?

At 125°C and 300 V reverse bias, SBR60A300PT draws only 2 μA leakage - over 10× lower than typical 300 V Schottky diodes (>25 μA). This enables stable operation in high-temperature environments where Schottky leakage would cause thermal runaway or excessive standby loss.