STMicroelectronics STPS80H100TV

Overview

STPS80H100TV from STMicroelectronics is a high-voltage dual Schottky barrier rectifier in ISOTOP package, rated for 100 V repetitive peak reverse voltage, 80 A average forward current (per device), and 150 °C maximum junction temperature. It delivers low forward voltage drop (0.65 V max at 40 A, 125 °C) and negligible switching losses, targeting high-frequency telecom and computer SMPS.

For engineers reviewing the STPS80H100TV datasheet, STPS80H100TV pinout, STPS80H100TV application, or STPS80H100TV equivalent, key selection factors include its insulated 2500 V_RMS package, dual-leg thermal resistance (R_th(j–c) = 0.55 °C/W total), dV/dt rating of 10,000 V/µs, and low leakage (25 mA max at 125 °C, V_RRM).

Technical Context

This dual-diode Schottky rectifier integrates two independent 40 A legs in a single insulated ISOTOP housing, enabling parallel or half-bridge configurations without external isolation. Its low Q_rr and absence of minority-carrier storage eliminate reverse recovery loss - critical for >100 kHz operation in telecom DC/DC converters.

The device uses a metal–semiconductor junction with optimized PtSi/Si interface to achieve simultaneous low V_F (0.61 V typ. @ 40 A, 125 °C) and controlled I_R (7–25 mA @ 125 °C, V_RRM). Thermal coupling between legs is minimized via R_th(c) = 0.1 °C/W, allowing accurate junction temperature estimation under unbalanced load conditions.

Key Specifications

Pinout & Package

Packaged in ISOTOP (insulated TO-220 variant), STPS80H100TV features four terminals: two anodes (A1, A2), two cathodes (K1, K2), and an isolated metal baseplate. The package provides creepage/clearance compliant with reinforced insulation requirements.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-80SQ040 and MBR80100CT, STPS80H100TV uniquely combines dual-leg 100 V operation, 2500 V_RMS insulation, and 0.55 °C/W total thermal resistance - enabling compact, isolated, high-efficiency rectification where safety standards or space constraints prohibit discrete solutions.

Availability

STPS80H100TV is available at Aetrix Electronics and suitable for telecom DC/DC converters, server power supply outputs, and industrial PLC power inputs requiring stable component supply, long-lifecycle assurance, and traceable sourcing.

Supply support for STPS80H100TV 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, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

STPS80H100TV belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-frequency, high-reliability power conversion in telecom infrastructure and enterprise computing equipment.

FAQ

What is the maximum allowable case temperature for continuous operation?

The datasheet specifies T_c = 120 °C as the reference condition for I_F(AV) = 40 A per diode (80 A total). At this case temperature, the device sustains full rated current with junction temperature held at ≤150 °C using the stated R_th(j–c) = 0.55 °C/W. Operation above 120 °C requires current derating per Fig. 2.

Can STPS80H100TV be used in a center-tapped transformer configuration?

Yes - its dual independent diode structure (A1/K1 and A2/K2) is explicitly designed for center-tapped secondary rectification. Each leg handles half the transformer secondary voltage, enabling efficient 12 V or 5 V output generation without cross-conduction risk or shared cathode parasitics.

Is the ISOTOP package compatible with standard TO-220 heatsinks?

Yes - the ISOTOP mechanical outline matches TO-220AB dimensions (D = 38.0 mm, E = 25.3 mm), allowing direct mounting to standard TO-220 heatsinks. However, the insulated baseplate requires no additional insulator, unlike conventional TO-220 devices, simplifying thermal interface design.

Does STPS80H100TV require a minimum reverse voltage to maintain low leakage?

No - leakage current increases monotonically with applied reverse voltage, as shown in Fig. 5. At 25 °C, I_R is only 20 µA at V_RRM, rising to ~100 µA at 50 V. No minimum bias is needed; the device performs reliably from 0 V to 100 V reverse bias.