STMicroelectronics STPS5L60S

Overview

STPS5L60S from STMicroelectronics is a 60 V, 5 A average forward current surface-mount Schottky rectifier in SMC package, featuring 0.42 V typical forward voltage at 5 A and 125 °C, low thermal resistance (15 °C/W junction-to-lead), avalanche rating (144 W peak), and ECOPACK2 compliance. It is engineered for high-frequency DC/DC converters, notebook adapters, and space-constrained telecom battery chargers.

For engineers reviewing the STPS5L60S datasheet, STPS5L60S pinout, STPS5L60S application, or STPS5L60S equivalent, key selection criteria include its low VF conduction loss, 150 °C max junction temperature, 100 A non-repetitive surge capability, SMB/SMC/DO-201AD package variants, and thermal performance under PCB copper area constraints.

Technical Context

This Schottky rectifier operates as a unidirectional power switching diode with negligible reverse recovery charge and no minority-carrier storage-enabling zero-voltage-switching compatibility in high-frequency topologies. Its low VF and low R_th(j-l) directly reduce conduction losses and simplify thermal design in compact adapters.

The device is rated for repetitive avalanche energy (144 W at 10 µs, T_j = 125 °C) and exhibits stable reverse leakage (<100 µA at 125 °C, VR = 60 V). Junction-to-ambient thermal resistance varies with PCB copper area (e.g., ~3.5 °C/W with 100 cm² per lead for SMC).

Key Specifications

Pinout & Package

STPS5L60S is housed in an SMC (DO-214AB) surface-mount package with two terminals: anode and cathode. The package features gull-wing leads, UL94 V0 epoxy, and lead-free construction per ECOPACK2 standards. Thermal performance is optimized when mounted on ≥60 cm² total copper area (30 cm² per lead).

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-5EY60-M3 and SB560-E3/54, STPS5L60S delivers superior thermal efficiency (15 °C/W vs. ≥18 °C/W), lower conduction loss (0.42 V vs. ≥0.55 V), and SMC surface-mount scalability-making it optimal for high-density, high-frequency DC/DC converters where board space and thermal headroom are constrained.

Availability

STPS5L60S is available at Aetrix Electronics and suitable for notebook adapters, telecom battery chargers, and set-top box power supplies requiring stable component supply, ECOPACK2 compliance, and consistent SMC package delivery.

Supply support for STPS5L60S 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, power, microcontroller, and sensor solutions for automotive, industrial, and consumer markets.

STPS5L60S belongs to ST's high-efficiency Schottky rectifier product line, developed specifically for high-frequency, space-constrained AC/DC and DC/DC power conversion in computing, telecom, and consumer electronics.

FAQ

What is the maximum allowable PCB copper area for optimal thermal performance of STPS5L60S?

For SMC package, ST recommends ≥60 cm² total copper area (30 cm² per lead) on 35 µm FR4 PCB to achieve R_th(j-a) ≈ 3.5 °C/W. With 100 cm², junction temperature rise stays below 50 °C at 5 A continuous current, per Figure 13 in DS2741 Rev 5.

Does STPS5L60S require a heatsink in a 5 A, 12 V output DC/DC converter?

No external heatsink is required if mounted on ≥50 cm² of 2-oz copper with thermal vias to inner layers. At 5 A and 125 °C junction, R_th(j-l) = 15 °C/W yields ~75 °C temperature rise above lead temperature-achievable with adequate PCB copper area alone per AN5088 guidelines.

How does the avalanche rating of STPS5L60S improve system reliability?

The 144 W repetitive avalanche power rating (at 10 µs, T_j = 125 °C) allows STPS5L60S to absorb inductive energy spikes-such as those from transformer leakage in flyback converters-without catastrophic failure, eliminating need for external snubber networks in many 65 W-class designs.

Can STPS5L60S replace a MOSFET-based synchronous rectifier in a 300 kHz flyback?

Yes-its zero reverse recovery charge enables clean commutation at 300 kHz without shoot-through risk or gate-drive complexity. However, conduction loss will be higher than an ideal MOSFET (R_DS(on) × I²), so replacement is viable only where V_F × I < R_DS(on) × I² + gate drive loss, typically below 5 A.