Diodes Incorporated SBL6030PT

Overview

SBL6030PT from Diodes Incorporated is a 30V, 60A TO-3P Schottky barrier rectifier optimized for low-voltage, high-frequency DC/DC conversion, freewheeling, and polarity protection. It delivers 0.55V forward voltage at 30A and 25°C, exhibits 500A non-repetitive surge capability, and features guard ring die construction for transient robustness in industrial power supplies.

For engineers reviewing the SBL6030PT datasheet, SBL6030PT pinout, SBL6030PT application, or SBL6030PT equivalent, key selection criteria include its 30V VRRM rating, 0.5°C/W thermal resistance, 1500pF junction capacitance at 4V, 60A average forward current at TC=100°C, and TO-3P mechanical compatibility with standard heatsink mounting.

Technical Context

This device operates as a unidirectional power rectifier in switching power topologies. Its Schottky barrier structure enables fast recovery (no minority-carrier storage), low conduction loss, and minimal reverse recovery charge-critical for synchronous rectification and high-efficiency SMPS designs below 30V output.

The TO-3P package provides direct metal-to-heatsink thermal path with RθJC = 0.5°C/W. Guard ring die construction enhances ruggedness against voltage transients without external snubbers, supporting reliable operation in motor drive freewheeling and battery-input polarity protection circuits.

Key Specifications

Pinout & Package

TO-3P package: insulated plastic case with three leads (anode, cathode, case tab electrically connected to cathode), UL 94V-0 rated, 5.6g mass, designed for bolt-down heatsink mounting with thermal interface material.

Key Features

Applications

Availability

SBL6030PT is available at Aetrix Electronics and suitable for industrial power supplies, motor drives, and battery management systems requiring stable component supply despite its obsolete status-inventory is secured for legacy system support and long-lifecycle production.

Supply support for SBL6030PT 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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the US.

The SBL6030PT belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for efficiency-critical, high-power-density 12–48V power conversion in industrial and computing infrastructure.

FAQ

Is SBL6030PT still in active production?

No. Diodes Incorporated has officially discontinued the SBL6030PT and marked it as obsolete with no alternate part offered. Aetrix Electronics maintains limited legacy stock for ongoing maintenance and end-of-life system support, but no new production runs are planned.

What is the cathode connection configuration in TO-3P package?

In the SBL6030PT TO-3P package, the metal tab is internally connected to the cathode. Lead 2 is also the cathode; both serve as a single electrical node. The tab must be electrically isolated from chassis unless the circuit design explicitly grounds the cathode.

Can SBL6030PT replace SBL6040PT in a 40V design?

No. SBL6030PT has a 30V peak repetitive reverse voltage (VRRM) rating. Using it in a 40V circuit exceeds its blocking capability and risks catastrophic failure under transient or steady-state reverse bias. A 40V-rated part like SBL6040PT or equivalent must be used instead.

What thermal interface material is recommended for TO-3P mounting?

For optimal thermal performance, use a thermally conductive, electrically insulating pad (e.g., Bergquist Sil-Pad 2000) or ceramic washer with thermal grease (e.g., Dow Corning TC-5622). Interface resistance must be ≤0.1°C·in²/W to maintain junction temperature within −65°C to +150°C limits at 60A load.