STMicroelectronics STPS10L60D

Overview

STPS10L60D from STMicroelectronics is a 60 V, 10 A average forward current Schottky rectifier in TO-220AC package, optimized for high-frequency DC/DC converters and SMPS. It features a typical forward voltage drop of 0.48 V at 10 A and 125 °C, 150 °C maximum junction temperature, and avalanche-rated power of 417 W (10 µs pulse), enabling efficient, thermally robust operation in compact power supplies.

For engineers reviewing the STPS10L60D datasheet, STPS10L60D pinout, STPS10L60D application, or STPS10L60D equivalent, key selection criteria include forward voltage at rated current, thermal resistance (1.6 °C/W junction-to-case), reverse leakage at elevated temperature, avalanche capability, and TO-220AC mechanical mounting compatibility with heatsink interfaces.

Technical Context

This Schottky diode operates as a unidirectional, low-loss freewheeling or output rectification device in hard-switched and resonant topologies. Its low VF minimizes conduction loss, while negligible reverse recovery charge eliminates switching losses - critical for >100 kHz DC/DC stages.

The device's specified avalanche energy (417 W at 10 µs, Tj = 125 °C) enables robust transient overvoltage handling without external clamping in flyback or boost converters. Thermal design is supported by Rth(j-c) = 1.6 °C/W and a TO-220AC case designed for direct conduction cooling.

Key Specifications

Pinout & Package

TO-220AC package: single-ended, isolated tab (cathode-connected metal flange), through-hole mounting, designed for conduction cooling via heatsink interface. Tab is electrically connected to cathode.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-10BQ060 and MBR1060CT, STPS10L60D delivers lower conduction loss, superior thermal performance, and verified avalanche ruggedness - making it optimal for high-reliability, high-frequency DC/DC where efficiency and transient robustness are jointly critical.

Availability

STPS10L60D is available at Aetrix Electronics and suitable for server power supplies, LED drivers, industrial DC/DC modules, and automotive body control units requiring stable component supply and long-term manufacturability.

Supply support for STPS10L60D 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.

The STPS series targets high-efficiency power conversion, with STPS10L60D specifically engineered for thermally demanding, high-frequency rectification in compact SMPS and DC/DC converters.

FAQ

Is STPS10L60D suitable for synchronous rectification?

No - STPS10L60D is a passive Schottky rectifier, not a MOSFET-based synchronous rectifier IC. It lacks gate drive interface or control logic. It functions as a freewheeling or output rectifier in non-synchronous topologies like standard buck, flyback, or forward converters where simplicity and reliability outweigh marginal efficiency gains from synchronous control.

What is the maximum recommended heatsink thermal resistance for continuous 10 A operation?

At IF(AV) = 10 A and Tamb = 50 °C, junction temperature reaches ~135 °C using Rth(j-c) = 1.6 °C/W. To stay within 150 °C Tj(max), total Rth(j-a) must be ≤ 10 °C/W. With Rth(j-c) = 1.6 °C/W, Rth(c-a) ≤ 8.4 °C/W is recommended - achievable with a 25 mm × 25 mm × 10 mm aluminum heatsink in still air.

Does STPS10L60D require a minimum reverse voltage derating for automotive applications?

Yes - although VRRM = 60 V, automotive load-dump transients can exceed 60 V. For 12 V systems, ST recommends limiting use to applications where reverse voltage remains ≤ 45 V under all conditions, or adding a parallel TVS (e.g., SMAJ58A) to clamp transients, as the device's avalanche rating applies only to short pulses (≤10 µs), not sustained overvoltage.

Can STPS10L60D replace STPS10L60 in existing designs?

Yes - STPS10L60D is the current production version of STPS10L60, with identical electrical specifications, TO-220AC package, and marking. The "D" suffix denotes updated ECOPACK®2 compliance and minor internal process enhancements; no layout or thermal redesign is needed for drop-in replacement.