STMicroelectronics STPS3L60QRL

Overview

STPS3L60QRL from STMicroelectronics is a 60 V, 3 A low-drop Schottky rectifier in DO-15 axial package, designed for high-frequency switching applications including SMPS, DC/DC converters, and LED lighting. It features a typical forward voltage of 0.53 V at 100 °C and 3 A, avalanche rating up to 144 W (10 µs), and maximum junction temperature of 150 °C.

For engineers reviewing the STPS3L60QRL datasheet, STPS3L60QRL pinout, STPS3L60QRL application, or STPS3L60QRL equivalent, key selection criteria include forward voltage drop at elevated temperature, surge current capability (100 A IFSM), thermal resistance (Rth(j-l) = 35 °C/W), and DO-15 mechanical compatibility in space-constrained battery charger designs.

Technical Context

This Schottky rectifier operates as a unidirectional power switch with negligible reverse recovery charge and no minority-carrier storage-enabling high-efficiency operation in 100 kHz–1 MHz DC/DC topologies. Its low VF minimizes conduction losses, while avalanche rating supports transient robustness without external clamping.

The device is optimized for ambient temperatures up to 72 °C under continuous 3 A average forward current (IF(AV)) in DO-15 package, with thermal performance governed by lead-to-ambient resistance (Rth(j-a) = 100 °C/W on FR4) and junction-to-lead resistance (35 °C/W).

Key Specifications

Pinout & Package

STPS3L60QRL is housed in DO-15 axial-leaded package (JEDEC DO-15), with cathode identified by a band on the body. The two terminals are non-polarized mechanically but functionally asymmetric: anode accepts input current, cathode delivers rectified output.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SB360-E3/54 and SS36-E3/57T, STPS3L60QRL delivers the lowest VF at elevated temperature (0.53 V @ 100 °C), superior thermal resistance margin in DO-15, and ECOPACK2 environmental compliance-making it optimal for thermally constrained, high-efficiency commercial power supplies.

Availability

STPS3L60QRL is available at Aetrix Electronics and suitable for telecom battery chargers, LED lighting drivers, USB-C PD adapters, and industrial DC/DC modules requiring stable component supply across multi-year production cycles.

Supply support for STPS3L60QRL 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, MCU, and sensor solutions for industrial, automotive, and consumer markets.

STPS3L60QRL belongs to ST's high-efficiency Schottky rectifier product line, engineered specifically for low-VF, high-frequency power conversion in space- and thermal-constrained applications such as portable chargers and LED drivers.

FAQ

What is the maximum allowable ambient temperature for continuous 3 A operation in DO-15 package?

The STPS3L60QRL supports 3 A average forward current (IF(AV)) at TL = 72 °C in DO-15 configuration, as specified in Table 1. This assumes leads soldered to PCB with standard 10 mm length and no additional heatsinking. Operation above 72 °C requires derating per Figure 4 in DS2134 Rev 7.

Does STPS3L60QRL have a specified reverse recovery time (trr)?

No-STPS3L60QRL is a Schottky barrier diode with majority-carrier conduction; it exhibits no reverse recovery time (trr ≈ 0 ns). This eliminates switching losses associated with minority-carrier recombination, making it ideal for high-frequency SMPS above 100 kHz.

Can STPS3L60QRL be used as a replacement for standard PN-junction rectifiers like 1N5822?

Yes-STPS3L60QRL replaces 1N5822 in most applications due to identical DO-15 package, higher IF(AV) (3 A vs. 3 A), lower VF (0.53 V vs. 0.9 V typ.), and avalanche rating (absent in 1N5822). However, its higher IR at 125 °C (30 mA vs. <1 mA) requires verification in ultra-low-leakage standby circuits.

Is STPS3L60QRL compliant with lead-free and RoHS requirements?

Yes-STPS3L60QRL is manufactured in ECOPACK2-compliant packaging, which is lead-free, halogen-free, and fully compliant with EU RoHS Directive 2011/65/EU and China RoHS. The "QRL" suffix denotes DO-15 tape-and-reel packaging meeting these environmental standards.