STMicroelectronics STPS16150CT

Overview

STPS16150CT from STMicroelectronics is a dual center-tap Schottky rectifier in TO-220AB package, rated for 150 V repetitive peak reverse voltage and 2 × 8 A average forward current per diode, with typical forward voltage drop of 0.70 V at 125 °C and 8 A. It serves as a high-efficiency output rectifier in AC/DC adapters and LCD power supplies.

For engineers reviewing the STPS16150CT datasheet, STPS16150CT pinout, STPS16150CT application, or STPS16150CT equivalent, key selection criteria include junction temperature capability (175 °C), low conduction loss profile, avalanche energy rating (338 W), and thermal resistance (R_th(j-c) = 3 °C/W per diode), critical for thermally constrained SMPS designs.

Technical Context

This dual-center-tap Schottky rectifier integrates two independent anode-cathode diodes sharing a common cathode terminal, enabling synchronous half-wave rectification in flyback or forward converters. Its design targets high-frequency switching (≥100 kHz) with minimal reverse recovery charge and low forward voltage at elevated junction temperatures.

The device features avalanche-rated capability (P_ARM = 338 W at t_p = 10 µs, T_j = 125 °C) and is optimized for thermal coupling between diodes via a shared case-R_th(c) = 0.6 °C/W enables accurate junction temperature estimation when both diodes conduct simultaneously.

Key Specifications

Pinout & Package

Supplied in TO-220AB package with isolated mounting tab (non-electrically connected), featuring three leads: Pin 1 (Anode 1), Pin 2 (Cathode, common center tap), Pin 3 (Anode 2). The case is electrically isolated from all terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-16CTH02 and MBR16150CT, STPS16150CT offers superior avalanche ruggedness and lowest V_F at high temperature-critical for thermally aggressive, unclamped switch-mode topologies where reliability and efficiency co-constrain design.

Availability

STPS16150CT is available at Aetrix Electronics and suitable for LCD monitor power supplies, USB-C PD adaptors, and industrial LED drivers requiring stable component supply and long-term production continuity.

Supply support for STPS16150CT 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.

The STPS series targets high-efficiency, high-reliability power conversion-specifically engineered for Schottky rectification in SMPS, DC/DC converters, and LED lighting where low V_F, high T_j, and avalanche tolerance are decisive.

FAQ

Is STPS16150CT pin-compatible with MBR16150CT?

Yes-both devices use identical TO-220AB package with Anode1–Cathode–Anode2 pinout (1–2–3). Mechanical footprint, mounting hole position, and thermal pad isolation match exactly. No PCB redesign is required for drop-in replacement, though thermal and surge performance differences must be validated in final system testing.

What is the maximum recommended case temperature for continuous operation?

The datasheet specifies I_F(AV) = 8 A per diode at T_c = 150 °C. Exceeding this case temperature requires linear derating: at T_c = 160 °C, max I_F(AV) drops to ~6.7 A per diode. Sustained operation above 150 °C risks accelerated parametric shift and reduced lifetime, even if T_j remains below 175 °C.

Does STPS16150CT require a heatsink in a 12 A total load application?

At 12 A total (6 A per diode), junction temperature rise is ~18 °C above case with R_th(j-c) = 3 °C/W. If case temperature is held ≤100 °C (e.g., via 20 cm² internal copper pour), T_j stays ≤118 °C-well within limit. A heatsink is optional but recommended for ambient >60 °C or sealed enclosures.

How is avalanche capability tested and what does 338 W signify?

The 338 W rating is measured per diode under single-pulse conditions: 10 µs duration, T_j = 125 °C, with peak current calibrated to produce that power. It reflects energy-handling capacity during transient overvoltage events-not continuous dissipation. This value validates robustness against reflected spikes in flyback transformers without external snubbers.