STMicroelectronics STPS41H100CG-TR

Overview

STPS41H100CG-TR from STMicroelectronics is a dual-center-tab 100 V, 40 A total (2 × 20 A per diode) Schottky rectifier in D²PAK package, optimized for high-frequency switch-mode power supplies and DC/DC converters. It delivers low forward voltage drop (0.62 V typ. at 125 °C, 20 A), negligible switching losses, and avalanche-rated ruggedness (1300 W peak) for reliable operation in auxiliary power and LED lighting systems.

For engineers reviewing the STPS41H100CG-TR datasheet, STPS41H100CG-TR pinout, STPS41H100CG-TR application, or STPS41H100CG-TR equivalent, key selection criteria include thermal resistance (R_th(j-c) = 0.8 °C/W total), reverse leakage (≤10 mA at 125 °C), junction temperature rating (175 °C), and ECOPACK2 compliance for industrial-grade reliability.

Technical Context

This dual-diode Schottky rectifier integrates two independent 100 V, 20 A diodes sharing a common cathode tab-enabling synchronous rectification or dual-output configurations in isolated DC/DC topologies. Its low R_th(j-c) (0.8 °C/W total) and avalanche capability support high-power density designs without forced air cooling.

The device operates with minimal conduction loss due to its low VF (0.62–0.76 V across 25–125 °C at 20 A) and low thermal resistance coupling (R_th(c) = 0.1 °C/W between diodes), enabling simultaneous conduction while limiting thermal crosstalk in shared heatsink layouts.

Key Specifications

Pinout & Package

Package: D²PAK (TO-263AB), surface-mount, single-side heat transfer via exposed cathode tab. Compatible with standard FR4 PCB footprints (16.90 mm × 12.20 mm recommended).

Key Features

Applications

Availability

STPS41H100CG-TR is available at Aetrix Electronics and suitable for switch mode power supplies, LED lighting drivers, and auxiliary power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial and automotive programs.

Supply support for STPS41H100CG-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, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.

The STPS41H100C series belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-frequency, high-efficiency power conversion where low VF, ruggedness, and thermal performance are critical.

FAQ

What is the maximum continuous forward current per diode at 150 °C case temperature?

The STPS41H100CG-TR supports 20 A average forward current per diode at T_c = 150 °C, as specified in Table 1 of DS2677 Rev 7. This rating assumes proper PCB copper area (≥10 cm² 2-oz copper) and no airflow, leveraging its 1.5 °C/W per-diode R_th(j-c).

Does this part require a heatsink when used at full 40 A total current?

At 40 A total (20 A per diode), junction temperature rise is ~40 °C above case with R_th(j-c) = 0.8 °C/W. A minimal heatsink or ≥25 cm² 2-oz copper pour is sufficient for ambient ≤60 °C; forced air is not required unless T_amb exceeds 85 °C.

How does the dual-center-tab configuration affect PCB layout compared to standard dual-D²PAK diodes?

The center-tab cathode (K) provides a single low-inductance thermal and electrical return path, eliminating the need for separate cathode traces or vias. This reduces loop inductance by ~35% and simplifies thermal design versus side-tab dual packages like TO-220AB or I²PAK.

Is STPS41H100CG-TR pin-compatible with STPS41H100CT (TO-220AB) or STPS41H100CR (I²PAK)?

No-pinout differs across packages: TO-220AB uses A1–K–A2 vertical pin order, I²PAK uses A1–A2–K, and D²PAK (STPS41H100CG-TR) uses A1–K–A2 with K as center-tab. Footprint, thermal pad, and mounting torque specifications are also package-specific and non-interchangeable.