STMicroelectronics STPS8H100G-TR

Overview

STPS8H100G-TR from STMicroelectronics is a high-voltage Schottky barrier rectifier in D²PAK (TO-263) package, rated for 100 V repetitive peak reverse voltage and 8 A average forward current at TC = 165 °C. It delivers low forward voltage drop (0.56 V typ. at 125 °C, 8 A), negligible switching losses, and avalanche-rated capability (750 W, 10 µs pulse), optimized for compact high-frequency SMPS in AC/DC adapters and on-board DC-DC converters.

For engineers reviewing the STPS8H100G-TR datasheet, STPS8H100G-TR pinout, STPS8H100G-TR application, or STPS8H100G-TR equivalent, key selection criteria include thermal resistance (Rth(j-c) = 1.6 °C/W), insulating package compliance (ECOPACK®2), junction temperature limit (175 °C), and leakage-current vs. VF trade-off at elevated temperatures.

Technical Context

This Schottky rectifier uses a planar silicon structure with metal-semiconductor junction to eliminate minority-carrier storage delay, enabling zero reverse recovery time and minimal switching loss in high-frequency operation. Its avalanche rating (PARM = 750 W at Tj = 125 °C, tp = 10 µs) supports robust transient handling in unregulated or loosely regulated power stages.

The D²PAK package provides low thermal resistance (1.6 °C/W junction-to-case) and enhanced thermal dissipation via copper pad soldering, while maintaining 2000 VRMS insulation between case and heatsink - critical for isolated secondary-side rectification in offline SMPS designs.

Key Specifications

Pinout & Package

D²PAK (TO-263) surface-mount package with insulated tab (2000 VRMS isolation), 3-pin configuration: anode, cathode, and thermally conductive exposed drain pad (cathode-connected). Requires full-solder coverage of tab for optimal thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-8EWH10FN-M3/45 and SB8100, STPS8H100G-TR offers superior thermal performance (1.6 °C/W), lowest VF at high temperature (0.56 V), and guaranteed avalanche energy - making it the preferred choice for thermally constrained, high-reliability SMPS where efficiency and ruggedness are co-prioritized.

Availability

STPS8H100G-TR is available at Aetrix Electronics and suitable for AC/DC adapters, on-board DC-DC converters, and industrial power supplies requiring stable component supply, tape-and-reel packaging for automated assembly, and long-term lifecycle support.

Supply support for STPS8H100G-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, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.

The STPS high-voltage Schottky rectifier product line targets high-efficiency, high-frequency switched-mode power conversion - specifically engineered to replace fast recovery diodes in adapter, charger, and DC-DC applications where low VF and zero Qrr are essential.

FAQ

What is the maximum allowable case temperature for continuous operation?

The STPS8H100G-TR is rated for 8 A average forward current at TC = 165 °C. Exceeding this temperature requires linear derating per Figure 3 in the datasheet; operation above 165 °C case temperature violates the absolute rating and risks thermal runaway due to negative temperature coefficient of VF.

Is the exposed tab electrically isolated from the cathode?

No - the exposed tab is internally connected to the cathode (Pin 2) and serves as both the primary thermal path and electrical return. The 2000 VRMS insulation rating refers to isolation between the tab and any external heatsink or mounting surface, not internal pin-to-tab isolation.

Can STPS8H100G-TR replace a standard PN-junction rectifier in an existing design?

Yes, provided layout accommodates D²PAK footprint and thermal pad, and circuit timing accounts for zero reverse recovery. No snubber is needed, but input capacitance (CJ ≈ 300 pF at 10 V) may require minor EMI filter adjustment compared to slower diodes.

Does this part require a heatsink for 8 A operation?

A dedicated heatsink is not mandatory - the D²PAK's 1.6 °C/W Rth(j-c) allows full 8 A operation with ≥4 cm² of 2-oz copper on FR4 PCB per ST's recommended footprint. For ambient >60 °C or enclosure-constrained layouts, adding an external heatsink improves margin and longevity.