STMicroelectronics STPS5L60UFN

Overview

STPS5L60UFN from STMicroelectronics is a 60 V, 5 A average forward current power Schottky rectifier in DO-201AD package, featuring 0.53 V max forward voltage at 5 A and 150 °C max junction temperature. It delivers negligible switching losses and low thermal resistance (75 °C/W junction-to-ambient), optimized for low-voltage output stages in small battery chargers and consumer SMPS such as DVD players and set-top boxes.

For engineers reviewing the STPS5L60UFN datasheet, STPS5L60UFN pinout, STPS5L60UFN application, or STPS5L60UFN equivalent, key selection criteria include its 60 V repetitive peak reverse voltage, 150 A non-repetitive surge current capability, avalanche-rated power (4000 W at 1 µs), and thermal performance under pulsed DC and high-frequency AC conditions.

Technical Context

This Schottky rectifier operates without minority-carrier storage delay, eliminating reverse recovery charge and associated switching losses. Its metal–semiconductor junction enables conduction with VF as low as 0.42 V at 125 °C and 5 A, directly improving efficiency in 100–500 kHz SMPS topologies.

The device supports high dV/dt immunity (10,000 V/µs) and specified avalanche capability-critical for handling inductive kickback in flyback and forward converters. Thermal design relies on validated R_th(j-a) = 75 °C/W (DO-201AD, free air) and R_th(j-l) = 15 °C/W (10 mm lead length), enabling accurate junction temperature estimation under real-world PCB layouts.

Key Specifications

Pinout & Package

STPS5L60UFN uses the DO-201AD axial-leaded plastic package (JEDEC TO-201AD), with cathode marked by a band on the body. Leads are tin-plated, lead-free per ECOPACK® requirements, and rated for wave soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SB560 and VS-50WQ06FN, STPS5L60UFN provides the lowest V_F and best thermal resistance in the DO-201AD form factor, making it optimal for cost-sensitive, thermally constrained consumer power supplies where axial mounting is required.

Availability

STPS5L60UFN is available at Aetrix Electronics and suitable for USB-C PD adapters, DVD player power supplies, set-top box AC/DC modules, and portable speaker chargers requiring stable component supply and long-term industrial availability.

Supply support for STPS5L60UFN 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, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

STPS5L60UFN belongs to ST's Power Schottky Rectifier product line, engineered specifically for high-frequency, low-loss secondary-side rectification in compact, cost-driven AC/DC converters targeting consumer electronics.

FAQ

What is the maximum allowable case temperature for STPS5L60UFN in continuous operation?

The maximum junction temperature is 150 °C. With R_th(j-a) = 75 °C/W and typical power dissipation of 2.65 W at 5 A, the case temperature remains ≤130 °C in free air at 25 °C ambient. Derating is required above 75 °C ambient to maintain T_j < 150 °C.

Can STPS5L60UFN replace a standard PN-junction rectifier like 1N5408 in a 5 V/3 A power supply?

Yes - STPS5L60UFN replaces 1N5408 with significant improvement: V_F drops from ~0.95 V to 0.53 V, reducing conduction loss by ~45%. However, its 60 V V_RRM is lower than 1N5408's 1000 V, so it must only be used where reverse voltage stays ≤60 V.

Does STPS5L60UFN require a heatsink in a 5 W DVD player power supply?

No heatsink is required. At 3 A output and 0.48 V V_F, power loss is ~1.44 W. With R_th(j-a) = 75 °C/W and 40 °C ambient, junction rise is ~108 °C - well within the 150 °C limit. Standard PCB copper pour suffices.

Is STPS5L60UFN suitable for automotive infotainment power supplies?

No - STPS5L60UFN is not qualified to AEC-Q101 and lacks automotive-grade screening, temperature cycling, or humidity testing. Its 150 °C T_j rating does not imply automotive suitability; use ST's AEC-Q101-certified Schottky series (e.g., STPS10H100CG) instead.