STMicroelectronics STPS8H100D

Overview

STPS8H100D from STMicroelectronics is a high-voltage Schottky barrier rectifier in TO-220AC package, rated for 100 V repetitive peak reverse voltage and 8 A average forward current at TC = 165 °C, with typical forward voltage drop of 0.71 V at 25 °C and 8 A. It delivers negligible switching losses and low leakage current (4.5 µA at 25 °C), enabling efficient operation in compact AC/DC adapters and on-board DC-DC converters.

For engineers reviewing the STPS8H100D datasheet, STPS8H100D pinout, STPS8H100D application, or STPS8H100D equivalent, key selection criteria include its 175 °C maximum junction temperature, 30 A RMS forward current rating, insulated thermal performance, avalanche capability (750 W, 10 µs), and ECOPACK®2 compliance - all critical for high-reliability power supply designs.

Technical Context

This Schottky rectifier uses a planar silicon structure optimized for high-frequency switching, minimizing reverse recovery charge and eliminating minority-carrier storage delay. Its low VF–IR trade-off enables high efficiency at elevated temperatures without thermal runaway under proper heatsinking (Rth(j-c) = 1.6 °C/W).

The device supports surge handling up to 250 A (10 ms sine) and specified avalanche energy absorption, making it suitable for transient-prone input stages. The TO-220AC package provides direct metal tab conduction cooling and meets UL 94 V0 flammability requirements.

Key Specifications

Pinout & Package

STPS8H100D uses the TO-220AC package: insulated plastic body with metal tab (cathode), three leads (anode, cathode tab, and isolated mounting hole). Thermal interface requires mechanical torque of 0.55 N·m (max 0.7 N·m) for reliable heatsink contact.

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 and MBR8H100G, STPS8H100D offers the lowest VF (0.71 V), highest avalanche rating (750 W), and best thermal resistance (1.6 °C/W), making it optimal for thermally aggressive, high-reliability power supply outputs.

Availability

STPS8H100D is available at Aetrix Electronics and suitable for laptop AC/DC adapters, industrial DC-DC converters, and LED driver power supplies requiring stable component supply and long-term manufacturability.

Supply support for STPS8H100D 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-frequency, high-efficiency power conversion in compact form factors - specifically engineered to replace standard PN diodes in SMPS output stages without redesigning thermal or layout architecture.

FAQ

What is the maximum allowable case temperature for continuous operation?

The STPS8H100D supports continuous operation with case temperature (TC) up to 165 °C, as specified in its absolute ratings table. This limit ensures the junction remains below 175 °C under worst-case thermal conditions, assuming Rth(j-c) = 1.6 °C/W and proper heatsink interface. Exceeding TC = 165 °C risks exceeding Tj(max) and accelerated parametric drift.

Does STPS8H100D require a thermal pad or insulator when mounted to a heatsink?

No - the TO-220AC package features an electrically insulated plastic body with 2000 VRMS dielectric strength, allowing direct mounting to grounded heatsinks without mica washers or silicone pads. Mechanical torque must be controlled to 0.55 N·m (max 0.7 N·m) to maintain insulation integrity and thermal contact pressure.

How does the 750 W avalanche rating translate to real-world surge handling?

The 750 W avalanche rating is measured at Tj = 125 °C with 10 µs pulse width, corresponding to ~7.5 mJ single-pulse energy. In practice, this enables reliable clamping of inductive spikes up to 100 V × 7.5 A for 10 µs - sufficient for unclamped flyback resets or transformer leakage energy dissipation without device failure.

Can STPS8H100D replace a standard 100 V fast recovery diode in an existing design?

Yes - STPS8H100D is a direct functional replacement for 100 V fast recovery diodes (e.g., UF1007, BYV26E) in output rectification, offering zero reverse recovery charge, lower VF, and higher Tj. Layout and thermal design remain unchanged due to identical TO-220AC footprint and mounting interface.