STMicroelectronics STPS6M100SF

Overview

STPS6M100SF from STMicroelectronics is a 100 V, 6 A average forward current Schottky barrier rectifier in PSMC (TO-277A) package, optimized for high-frequency DC/DC converters and reverse battery protection. It delivers low forward voltage drop (0.57 V typ. at 6 A, 125 °C), supports 175 °C maximum junction temperature, and features avalanche capability for robust transient handling in notebook adapters and LED lighting systems.

For engineers reviewing the STPS6M100SF datasheet, STPS6M100SF pinout, STPS6M100SF application, or STPS6M100SF equivalent, key selection criteria include its 2.1 °C/W junction-to-case thermal resistance, wettable flanks for automated optical inspection, ECOPACK®2 compliance, and conduction loss profile defined by P = 0.49 × IF(AV) + 0.0267 × IF²(RMS).

Technical Context

This Schottky rectifier uses a planar metal-silicon junction to achieve fast switching with negligible reverse recovery charge, enabling efficient operation above 100 kHz in isolated and non-isolated DC/DC topologies. Its 100 V repetitive peak reverse voltage and 200 A non-repetitive surge rating support input-stage protection in 24–48 V industrial power supplies.

The device's thermal design centers on low Rth(j-c) = 2.1 °C/W and flat PSMC package geometry, allowing direct PCB copper thermal spreading without heatsinks. Avalanche energy rating of 480 W (tp = 10 µs, Tj = 125 °C) enables reliable clamping during inductive turn-off events in battery charger circuits.

Key Specifications

Pinout & Package

STPS6M100SF is housed in a 3-terminal PSMC (TO-277A) surface-mount package with 1.1 mm typical height, wettable flanks, and exposed cathode tab for thermal and electrical connection. The package meets UL94 V0 flammability rating and is ECOPACK®2 compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-6EWH10FN-M3 and SBRA610, STPS6M100SF uniquely combines ultra-low profile (1.1 mm), wettable flanks, 0.57 V VF, and 480 W avalanche rating-making it optimal for thermally constrained, high-reliability DC/DC and adapter designs requiring AOI-compatible SMT assembly.

Availability

STPS6M100SF is available at Aetrix Electronics and suitable for notebook adapters, LED lighting drivers, and high-frequency DC/DC converters requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.

Supply support for STPS6M100SF 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 microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

STPS6M100SF belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-efficiency, high-density power conversion in space- and thermal-constrained applications such as portable power adapters and solid-state lighting.

FAQ

What is the recommended PCB layout for optimal thermal performance of STPS6M100SF?

Maximize copper area under the exposed cathode tab using ≥6 cm² of 35 µm thick FR4 copper; connect to internal ground plane via ≥6 thermal vias (0.3 mm diameter, 0.8 mm pitch). Avoid routing signal traces beneath the tab. Refer to Figure 7 in DS12699 for Rth(j-a) vs. copper surface curves.

Does STPS6M100SF require a heatsink in a 6 A, 100 kHz DC/DC application?

No heatsink is required if case temperature remains ≤155 °C. With Rth(j-c) = 2.1 °C/W and typical conduction loss of ~3.4 W at 6 A, 125 °C, a well-designed 6 cm² copper pad keeps Tj < 175 °C at 25 °C ambient-verified per AN5088 thermal guidelines.

How does the avalanche rating of STPS6M100SF improve system reliability?

The 480 W avalanche power rating (tp = 10 µs, Tj = 125 °C) allows the diode to safely absorb inductive energy during MOSFET turn-off without failure. This eliminates need for external RC snubbers in flyback or boost converters, reducing BOM count and improving long-term field reliability.

Is STPS6M100SF compatible with lead-free reflow profiles?

Yes-STPS6M100SF is qualified for standard JEDEC J-STD-020D lead-free reflow, with peak temperature up to 260 °C (10 s max). Its PSMC package withstands thermal cycling without delamination, and wettable flanks ensure reliable solder fillet formation per IPC-A-610 Class 2 requirements.