STMicroelectronics STPS15H100CB-TR

Overview

STPS15H100CB-TR from STMicroelectronics is a dual-center-tab high-voltage Schottky rectifier in DPAK package, rated for 100 V repetitive peak reverse voltage and 15 A total average forward current (7.5 A per diode), with typical forward voltage drop of 0.62 V at 7.5 A and 125 °C, designed for high-frequency DC–DC converters and SMPS secondary-side rectification.

For engineers reviewing the STPS15H100CB-TR datasheet, STPS15H100CB-TR pinout, STPS15H100CB-TR application, or STPS15H100CB-TR equivalent, key selection criteria include low thermal resistance (4 °C/W per diode), avalanche capability (475 W, 10 µs), ECOPACK®2 compliance, and dual-diode configuration enabling interleaved or parallel output paths in compact power supplies.

Technical Context

This dual Schottky rectifier integrates two independent anode-cathode junctions sharing a common cathode tab (center-tab DPAK), enabling synchronous or split-output topologies. Its negligible switching losses stem from majority-carrier conduction and absence of reverse recovery charge, while its 175 °C maximum junction temperature supports operation in thermally constrained environments without forced air cooling.

The device features specified avalanche capability (475 W, 10 µs pulse at 125 °C) and low leakage current (≤4 mA per diode at 125 °C, VR = 100 V), making it suitable for transient-prone industrial power rails where reliability under overvoltage stress is critical.

Key Specifications

Pinout & Package

Package: DPAK (TO-252), surface-mount, single-sided heat transfer via exposed cathode tab. Dimensions per Figure 10: D = 6.095 mm (max), E = 6.54 mm (max), L = 1.39 mm (max), thermal pad area ≈ 30 mm².

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-15CTH10-M3/45 and MBR15100CT, STPS15H100CB-TR uniquely combines low V_F, rated avalanche energy, and DPAK SMT packaging-enabling compact, efficient, and transient-hardened designs without trade-offs in thermal or environmental compliance.

Availability

STPS15H100CB-TR is available at Aetrix Electronics and suitable for server power supplies, industrial DC–DC converters, solar microinverters, and automotive on-board charger auxiliary supplies requiring stable component supply and long-term production continuity.

Supply support for STPS15H100CB-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 analog, digital, and mixed-signal ICs, discrete devices, and MEMS sensors for industrial, automotive, and consumer markets.

The STPS high-voltage Schottky rectifier product line targets high-efficiency, high-frequency power conversion systems where low conduction loss, thermal performance, and transient robustness are critical-especially in SMPS, solar inverters, and EV infrastructure.

FAQ

What is the maximum junction temperature and how is it enforced?

The STPS15H100CB-TR has a maximum operating junction temperature of 175 °C, verified per absolute ratings table. This limit is enforced by thermal design: with R_th(j-c) = 4 °C/W per diode and proper PCB copper area (≥30 mm² thermal pad), junction temperature remains within spec at 7.5 A per diode and 135 °C case temperature.

Does this device require a heatsink in typical applications?

No external heatsink is required if mounted on ≥30 mm² of 2-oz copper with thermal vias to inner layers. At 7.5 A per diode and 135 °C case temperature, junction rise is ≤30 °C-well below the 175 °C limit. Heatsinks become necessary only above 10 A total output or in sealed enclosures with >60 °C ambient.

How does the dual-diode configuration affect PCB layout?

The dual-anode, common-cathode (center-tab) structure requires separate anode traces routed to distinct switching nodes (e.g., two transformer secondaries or interleaved FETs), while the large cathode tab must be connected to a unified low-impedance output plane. This layout minimizes loop inductance and enables balanced current sharing without external balancing components.

Is the STPS15H100CB-TR suitable for synchronous rectification control?

No-it is a passive Schottky rectifier, not a MOSFET-based synchronous rectifier controller. It operates autonomously based on forward bias, with no gate drive or timing interface. For synchronous rectification, a dedicated SR controller (e.g., STSR3) driving external MOSFETs is required; this device serves as the rectifying element in non-controlled or self-driven topologies.