STMicroelectronics STPS16150CG

Overview

STPS16150CG from STMicroelectronics is a dual center-tap Schottky rectifier in TO-220AB package, rated for 150 V repetitive peak reverse voltage, 8 A average forward current per diode (16 A total device), and 175 °C maximum junction temperature. It delivers low forward voltage drop (0.70 V typ. at 8 A, 125 °C) and low leakage current (4.0 mA max at 125 °C, VR = 150 V), optimized for high-efficiency DC/DC converters and LED lighting adaptors.

For engineers reviewing the STPS16150CG datasheet, STPS16150CG pinout, STPS16150CG application, or STPS16150CG equivalent, key selection criteria include dual-diode thermal coupling behavior, avalanche power rating (338 W at 10 µs), junction-to-case thermal resistance (3 °C/W per diode), and ECOPACK®2 compliance for RoHS-compliant industrial power designs.

Technical Context

This dual Schottky rectifier integrates two independent anode-cathode paths sharing a common cathode terminal (center-tap configuration), enabling synchronous half-wave rectification in flyback or forward topologies. Its low VF and high Tj rating support continuous conduction mode operation up to 175 °C junction temperature without thermal runaway under proper heatsinking.

The device features avalanche-rated capability (338 W peak at 10 µs, Tj = 125 °C) and exhibits tightly controlled reverse leakage (≤4.0 mA at 125 °C, VR = 150 V), making it suitable for high-reliability SMPS where transient overvoltage and thermal stress coexist.

Key Specifications

Pinout & Package

TO-220AB package with isolated mounting tab (electrically connected to cathode), 3-terminal configuration: Pin 1 = Anode 1, Pin 2 = Cathode (common center tap), Pin 3 = Anode 2. Mounting torque: 0.55 N·m (max 0.70 N·m); epoxy meets UL 94 V0.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-16CTQ015 and MBR16150CT, STPS16150CG offers the lowest VF (0.70 V) and tightest thermal coupling (Rth(c) = 0.6 °C/W), making it optimal for thermally dense, efficiency-critical dual-output SMPS where simultaneous diode conduction occurs.

Availability

STPS16150CG is available at Aetrix Electronics and suitable for LCD power adapters, industrial DC/DC converters, and LED lighting power supplies requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for STPS16150CG 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 automotive, industrial, and consumer markets.

The STPS series targets high-efficiency, high-reliability power conversion applications, with STPS16150CG specifically engineered for dual-rail and auxiliary-winding rectification in compact, thermally demanding switch-mode power supplies.

FAQ

Is STPS16150CG pin-compatible with STPS16150CT?

Yes - STPS16150CG and STPS16150CT share identical TO-220AB mechanical outline, pin assignment (Anode 1–Cathode–Anode 2), thermal pad connection, and mounting hole pattern. The 'G' suffix denotes green (halogen-free) packaging per ECOPACK®2, with no electrical or thermal performance difference from the 'T' variant.

What is the maximum recommended heatsink thermal resistance for continuous 8 A per diode operation?

With Rth(j-c) = 3 °C/W per diode and maximum Tj = 175 °C, a 25 °C ambient requires total Rth(j-a) ≤ 15 °C/W. Accounting for Rth(c-a) ≈ 12 °C/W, the heatsink must achieve ≤12 °C/W (including interface material) to sustain 8 A per diode continuously without derating.

Does STPS16150CG support parallel operation of both diodes in a single-output configuration?

Yes - the datasheet specifies thermal coupling parameter Rth(c) = 0.6 °C/W, enabling accurate junction temperature calculation when both diodes conduct simultaneously. Total device IF(AV) = 16 A is valid only when both diodes share equal current and heatsink thermal path, confirmed by AN5088 thermal modeling guidelines.

How does the 338 W avalanche rating translate to real-world surge protection?

The 338 W rating applies to 10 µs pulses at Tj = 125 °C. In practice, this supports single-event energy absorption of 3.38 mJ, sufficient to clamp typical MOSFET drain-voltage overshoot (e.g., 150 V × 22.5 A × 10 µs) in unclamped flyback converters without degradation or failure.