STMicroelectronics STPS4S200B-TR

Overview

STPS4S200B-TR from STMicroelectronics is a 4 A average forward current, 200 V repetitive peak reverse voltage Schottky rectifier in DPAK package, optimized for high-frequency DC–DC converters and switch-mode power supplies with low conduction loss (VF = 0.64 V at 4 A, Tj = 125 °C) and negligible switching losses. It operates from –40 °C to +175 °C junction temperature and is used in telecom power supplies and battery charger output stages.

For engineers reviewing the STPS4S200B-TR datasheet, STPS4S200B-TR pinout, STPS4S200B-TR application, or STPS4S200B-TR equivalent, key selection criteria include thermal resistance (Rth(j-c) = 3.2 °C/W), low leakage current (≤0.7 mA at 125 °C), ECOPACK2 compliance, and DPAK surface-mount compatibility for high-power-density designs.

Technical Context

This Schottky rectifier employs a single-chip silicon structure with metal–semiconductor junction to eliminate minority-carrier storage delay, enabling zero reverse recovery time and minimal switching losses in high-frequency topologies. Its VF–IF curve shows strong temperature stability-typical VF drops from 0.87 V at 25 °C to 0.64 V at 125 °C under 4 A DC.

Thermal design is enabled by direct conduction cooling via the DPAK thermal pad (Rth(j-c) = 3.2 °C/W), supporting continuous operation at IF(AV) = 4 A with Tc = 160 °C. Reverse leakage remains tightly bounded (≤2.5 mA at 125 °C, VR = 200 V), critical for efficiency in low-voltage, high-current outputs.

Key Specifications

Pinout & Package

DPAK package features three terminals: anode (pin 1), cathode (pin 2), and thermal pad (pin 3, electrically connected to cathode). The thermal pad must be soldered to a dedicated copper pour for effective heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-4EWH02-M3/45 and MBR4200CT, STPS4S200B-TR delivers superior thermal performance (3.2 °C/W), lowest VF at elevated temperature, and DPAK SMT compatibility-making it optimal for space-constrained, high-efficiency telecom and industrial power modules.

Availability

STPS4S200B-TR is available at Aetrix Electronics and suitable for telecom power supplies, battery chargers, and home appliance motor drives requiring stable component supply and long-term production continuity.

Supply support for STPS4S200B-TR 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 industrial, automotive, and consumer markets.

STPS4S200B-TR belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-frequency, high-efficiency AC–DC and DC–DC conversion in space- and thermally-constrained power systems.

FAQ

What is the maximum allowable case temperature for continuous operation?

The STPS4S200B-TR is rated for continuous operation at Tc = 160 °C in DPAK package, as specified in Table 1 of DS10646 Rev 6. Exceeding this temperature risks exceeding the 175 °C maximum junction temperature, especially under high ambient or poor PCB thermal design.

Is the thermal pad electrically isolated?

No-the thermal pad of the STPS4S200B-TR DPAK package is internally connected to the cathode (Pin 2). PCB layout must ensure the thermal pad copper pour is routed to the cathode net and not shorted to other potentials.

Can STPS4S200B-TR replace a fast recovery diode in an existing 100 kHz flyback design?

Yes-its zero Qrr eliminates reverse recovery loss and associated EMI, improving efficiency and simplifying EMI filtering. However, verify reverse leakage (up to 2.5 mA at 125 °C) does not exceed system standby current budget before substitution.

What is the surge current rating and test condition?

The STPS4S200B-TR supports IFSM = 130 A for tp = 10 ms sinusoidal half-cycle, as defined in Table 1. This rating applies to transient overload events such as inrush or motor startup, provided junction temperature remains within limits.