STMicroelectronics STPS16150CG-TR

Overview

STPS16150CG-TR from STMicroelectronics is a dual center-tap 150 V Schottky rectifier in TO-220AB package, rated for 2 × 8 A average forward current per diode and 175 °C maximum junction temperature. It delivers low forward voltage drop (0.70 V typ. at 125 °C, 8 A) and low leakage current (4.0 mA max at 125 °C, 150 V), optimized for high-frequency SMPS in LCD power supplies and AC/DC adapters.

For engineers reviewing the STPS16150CG-TR datasheet, STPS16150CG-TR pinout, STPS16150CG-TR application, or STPS16150CG-TR equivalent, key selection factors include thermal resistance (R_th(j-c) = 3 °C/W per diode), avalanche rating (338 W peak), and dual-diode center-tap configuration enabling synchronous rectification or dual-output DC/DC topologies.

Technical Context

This dual Schottky rectifier integrates two independent anode-cathode junctions sharing a common cathode terminal (center-tap configuration), enabling use in dual-output flyback or forward converters without external node tying. Its low Q_rr and absence of minority-carrier storage minimize switching losses in high-frequency operation up to several hundred kHz.

The device employs platinum-silicide Schottky barrier technology on epitaxial silicon, delivering stable VF vs. temperature behavior and avalanche-rated capability under transient overvoltage conditions. Thermal coupling between diodes is quantified by R_th(c) = 0.6 °C/W, allowing accurate junction temperature estimation when both diodes conduct simultaneously.

Key Specifications

Pinout & Package

Supplied in TO-220AB package: insulated case, vertical mounting, single-side heat transfer via tab (cathode-connected metal flange). Mechanical outline conforms to ST's standard TO-220AB drawing (DS2251 Rev 3, page 5), with recommended torque 0.55 N·m.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-16CTQ015 and MBR16150CT, STPS16150CG-TR uniquely combines 175 °C T_j(max), 338 W avalanche rating, and 3 °C/W thermal resistance-making it optimal for thermally dense, unclamped, high-reliability SMPS designs.

Availability

STPS16150CG-TR is available at Aetrix Electronics and suitable for LCD monitor power supplies, USB-C PD adapters, and industrial DC/DC converters requiring stable component supply, long-term lifecycle support, and traceable ECOPACK®2-compliant sourcing.

Supply support for STPS16150CG-TR 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 microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.

The STPS series targets high-efficiency power conversion, with STPS16150CG-TR specifically engineered for dual-output, high-frequency switch-mode power supplies where thermal density and reliability under transient stress are critical.

FAQ

Is STPS16150CG-TR pin-compatible with STPS16150CT?

Yes. STPS16150CG-TR and STPS16150CT share identical TO-220AB mechanical outline, pin assignment (Anode1–Anode2–Cathode), and thermal pad connection. The "G-TR" suffix denotes tape-and-reel packaging (1,000 pcs/reel), while "CT" indicates tube packaging (50 pcs/tube); electrical and thermal specs are identical.

What is the maximum allowable case temperature for continuous 8 A per diode operation?

At 8 A per diode and δ = 0.5 square wave, the maximum case temperature is 150 °C per datasheet (Table 1). With R_th(j-c) = 3 °C/W and typical P_cond ≈ 5.6 W per diode (using P = 0.64×I_F(AV) + 0.014×I_F(RMS)²), junction temperature remains ≤167 °C at T_c = 150 °C.

Does STPS16150CG-TR require a thermal pad under the tab for reliable operation?

Yes. The metal tab is electrically connected to the cathode and serves as the primary heat path. ST specifies mandatory isolation (e.g., mica washer + thermal grease) if mounted to a grounded heatsink. Direct mounting is allowed only if the cathode node is system ground; otherwise, dielectric isolation is required to prevent short circuits.

Can STPS16150CG-TR be used in place of a single 16 A Schottky diode?

No. STPS16150CG-TR is a dual-diode device with shared cathode; its 16 A total rating is distributed across two independent anodes. Using only one anode limits current to 8 A per diode. It cannot replace a true 16 A single-anode Schottky without redesigning the transformer secondary or rectifier topology.