STMicroelectronics STPS30M100SFP

Overview

STPS30M100SFP from STMicroelectronics is a 100 V, 30 A average forward current Schottky rectifier in TO-220FPAB package, optimized for high-frequency SMPS and DC/DC converters. It delivers low forward voltage drop (0.605 V typ. at 30 A, 125 °C), specified avalanche capability (1900 W peak), and ECOPACK®2 compliance for desktop power supplies and LED lighting adapters.

For engineers reviewing the STPS30M100SFP datasheet, STPS30M100SFP pinout, STPS30M100SFP application, or STPS30M100SFP equivalent, key selection criteria include thermal resistance (Rth(j-c) = 4 °C/W), reverse leakage (20–50 mA at 125 °C, VR = 100 V), junction temperature limit (150 °C), and conduction loss equation (P = 0.475 × IF(AV) + 0.006 × IF²(RMS)).

Technical Context

This Schottky rectifier operates without minority-carrier storage, enabling zero-recovery switching essential for >100 kHz SMPS topologies. Its low VF/IR trade-off is achieved via platinum-silicide barrier metallization and optimized epitaxial layer doping, balancing conduction loss and thermal runaway risk under high ambient conditions.

The device supports dual-package design: TO-220FPAB provides insulated mounting with 4 °C/W junction-to-case thermal resistance, while maintaining identical electrical specs as the TO-220AB variant. Avalanche rating is validated per 10 µs pulse at Tj = 125 °C, supporting transient overvoltage robustness in unregulated flyback stages.

Key Specifications

Pinout & Package

STPS30M100SFP is housed in TO-220FPAB package: insulated plastic case with metal tab (cathode-connected), 3-pin configuration, screw-mount compatible, UL 94 V0 epoxy, recommended torque 0.55 N·m.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-30CPH01-M3 and MBR30100CT, STPS30M100SFP offers superior VF/IR balance, certified avalanche capability, and TO-220FPAB insulation-making it optimal for safety-critical, thermally constrained, and high-reliability AC/DC adapters.

Availability

STPS30M100SFP is available at Aetrix Electronics and suitable for desktop power supplies, LED lighting drivers, notebook adapters, and game station power modules requiring stable component supply and long-term industrial availability.

Supply support for STPS30M100SFP 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.

ST's Power Schottky Rectifier product line targets high-efficiency AC/DC and DC/DC conversion, emphasizing low VF, high Tj rating, and rugged packaging for demanding power supply applications.

FAQ

What is the maximum allowable case temperature for continuous operation?

The STPS30M100SFP is rated for continuous operation with case temperature up to 100 °C, derived from its 150 °C maximum junction temperature and 4 °C/W thermal resistance. At 30 A average current and 0.605 V forward drop, power dissipation is ~18.2 W, requiring a heatsink that limits case rise to ≤100 °C under worst-case ambient conditions.

Is the metal tab electrically isolated in the TO-220FPAB package?

Yes-the TO-220FPAB package features an electrically insulated metal tab bonded to the cathode, allowing direct mounting to grounded heatsinks without additional isolation hardware. The insulation withstands ≥2500 V RMS per IEC 60747-5-2, verified in production testing.

How does the conduction loss equation P = 0.475 × IF(AV) + 0.006 × IF²(RMS) apply in practice?

This empirical equation models total conduction loss across operating conditions: the linear term accounts for ohmic resistance, while the quadratic term captures voltage-dependent barrier effects. For a 30 A DC load, IF(AV) = IF(RMS) = 30 A, yielding P ≈ 18.2 W-matching datasheet curves within ±3% error across 25–125 °C.

Can STPS30M100SFP replace STPS30M100ST in existing designs?

Yes-STPS30M100SFP and STPS30M100ST share identical electrical specifications and pinout, differing only in package (TO-220FPAB vs. TO-220AB). The FPAB variant adds electrical insulation on the tab, enabling safer grounding in Class I systems without redesigning heatsink isolation.