Diodes Incorporated SBL4060PT

Overview

SBL4060PT from Diodes Incorporated is a 40A, 60V Schottky barrier rectifier in TO-3P package, featuring low forward voltage drop (0.70 V @ 20A, 25°C), high surge capability (375 A, 8.3 ms), and thermal resistance of 1.4 °C/W - deployed in low-voltage DC-DC output stages and polarity protection circuits for industrial power supplies.

For engineers reviewing the SBL4060PT datasheet, SBL4060PT pinout, SBL4060PT application, or SBL4060PT equivalent, key selection criteria include peak repetitive reverse voltage (60 V), average rectified current at TC = 100°C (40 A), forward voltage drop under load, thermal resistance junction-to-case, and RoHS-compliant bright tin-plated leads.

Technical Context

This device uses Schottky barrier chip construction with integrated guard ring for transient protection, enabling fast switching and minimal reverse recovery loss. Its TO-3P molded plastic case (UL 94V-0) supports direct heatsink mounting and provides mechanical robustness for high-current industrial environments.

Designed for single-phase, half-wave rectification at 60 Hz with resistive or inductive loads, it requires 20% current derating for capacitive loads. Thermal performance is specified with heatsink mounting per Note 1, and capacitance (800 pF @ 1 MHz, 4 V) reflects its suitability for high-frequency freewheeling applications.

Key Specifications

Pinout & Package

TO-3P package: 3-terminal through-hole case with isolated metal tab (cathode-connected), molded UL 94V-0 plastic body, and bright tin-plated leads solderable per MIL-STD-202, Method 208.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-40CPH06 and MBR4060CT, the SBL4060PT offers integrated transient protection via guard ring and TO-3P mechanical stability ideal for high-vibration environments - whereas alternatives trade off package ruggedness for thermal or integration advantages.

Availability

SBL4060PT is available at Aetrix Electronics and suitable for industrial AC-DC power supplies, 48 V telecom rectifier modules, and motor drive freewheeling paths requiring stable component supply despite end-of-life status.

Supply support for SBL4060PT 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, serving industrial, computing, communications, and consumer markets since 1960.

The SBL40xxPT series belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for efficiency-critical secondary-side rectification and freewheeling in high-power, high-reliability power conversion systems.

FAQ

Is SBL4060PT still in production?

No - Diodes Incorporated officially discontinued the SBL4060PT, marking it "OBSOLETE – PART DISCONTINUED" in DS30236 Rev. 4 (July 2015). Aetrix Electronics maintains limited legacy stock with full traceability and offers lifecycle coordination support for ongoing production runs.

What is the maximum allowable case temperature for continuous operation?

The datasheet specifies IO = 40 A at TC = 100°C. Operation above 100°C requires linear derating per Figure 1: at TC = 110°C, IO drops to ~32 A; at TC = 125°C, IO is ~24 A. Exceeding 125°C risks irreversible junction degradation.

Can SBL4060PT be used in synchronous rectification circuits?

No - the SBL4060PT is a passive Schottky rectifier, not a synchronous rectifier controller or MOSFET driver. It lacks gate drive logic or timing interfaces; it functions only as a two-terminal unidirectional conduction device.

Does the TO-3P package require electrical isolation from the heatsink?

Yes - the metal tab is electrically connected to the cathode. If the heatsink is grounded or at a different potential, an insulating washer (e.g., mica or silicone pad) and shoulder washer must be used to prevent short circuits while preserving thermal contact.