STMicroelectronics STPS2H100ZF

Overview

STPS2H100ZF from STMicroelectronics is a surface-mount Power Schottky rectifier optimized for high-frequency DC/DC converters and reverse polarity protection circuits, featuring 2 A average forward current, 100 V repetitive peak reverse voltage, 0.60 V typical forward voltage at 25 °C, 175 °C maximum junction temperature, and avalanche capability rated at 105 W (10 µs pulse, Tj = 125 °C).

For engineers reviewing the STPS2H100ZF datasheet, STPS2H100ZF pinout, STPS2H100ZF application, or STPS2H100ZF equivalent, key selection criteria include low conduction loss (VF ≤ 0.70 V @ 2 A, 125 °C), negligible switching losses, thermal robustness (Rth(j-l) = 20 °C/W), and ECOPACK®2 compliance for environmentally constrained designs.

Technical Context

This Schottky rectifier uses a single-chip silicon structure with metal-semiconductor junction to eliminate minority-carrier storage delay, enabling zero reverse recovery time and eliminating switching-related power loss in high-frequency (>100 kHz) topologies. Its low VF and high Tj rating support compact thermal design in space-constrained power supplies.

The device is characterized for avalanche energy handling (105 W, 10 µs) under transient overvoltage conditions and exhibits <0.5 mA reverse leakage at 125 °C - critical for maintaining efficiency in elevated ambient environments such as automotive engine compartments or industrial motor drives.

Key Specifications

Pinout & Package

SOD123Flat package: ultra-thin, surface-mount plastic case with two gull-wing leads (cathode and anode), footprint dimensions 2.60 mm × 1.60 mm × 0.98 mm (L × E × A), UL94 V0 epoxy, designed for conduction cooling via PCB copper pads.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NSS2H100MT1G and SS210HE3/5BT, STPS2H100ZF delivers superior thermal performance (20 vs. 25 °C/W), lower forward voltage, and verified avalanche ruggedness - making it preferred for high-reliability automotive and industrial DC/DC modules where transient immunity and power density are critical.

Availability

STPS2H100ZF is available at Aetrix Electronics and suitable for high-frequency DC/DC converters, reverse polarity protection circuits, and freewheeling diode applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for STPS2H100ZF 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.

STPS2H100ZF belongs to ST's Power Schottky Rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in space-constrained and thermally demanding applications.

FAQ

What is the maximum allowable PCB copper area for optimal thermal performance of STPS2H100ZF?

Per Figure 8 in the datasheet, thermal resistance junction-to-ambient drops from ~120 °C/W (no copper) to ~55 °C/W with 250 mm² of 35 µm copper per lead. For continuous 2 A operation at 75 °C ambient, ≥400 mm² total copper (200 mm² per lead) is recommended to maintain Tj < 150 °C without airflow.

Does STPS2H100ZF require a snubber circuit in high-frequency flyback applications?

No snubber is required due to zero reverse recovery charge. However, a small RC snubber (e.g., 100 Ω + 100 pF) across the diode may be used to damp high-frequency ringing caused by parasitic inductance in high-di/dt layouts - not for loss reduction, but for EMI suppression.

Can STPS2H100ZF replace a standard PN-junction rectifier in an existing 24 V power supply?

Yes, provided layout accommodates SOD123Flat footprint and VR requirements are ≤100 V. Forward voltage reduction from ~0.95 V (PN) to ~0.65 V (Schottky) lowers conduction loss by ~32%, but reverse leakage increases - verify system standby current budget allows ≤0.5 mA extra leakage at elevated temperature.

Is STPS2H100ZF qualified for automotive AEC-Q101 stress testing?

No - STPS2H100ZF is not AEC-Q101 qualified. It is a standard industrial-grade Schottky rectifier. For automotive applications, ST recommends the AEC-Q101-qualified STPS2H100TV1 (same electrical specs, same package, automotive-qualified variant).