STPS40L15CW

Diode Arrays Overview

The STPS40L15CW is a dual center tap Schottky rectifier module manufactured by Vishay General Semiconductor - Diodes Division. It features two independent diode legs housed in a TO-247AC package with a common cathode configuration. The device provides a maximum average forward current of 40 A (20 A per leg) and a maximum DC reverse voltage of 15 V. Key electrical characteristics include a peak one-cycle non-repetitive surge current of 700 A, a typical forward voltage drop of 0.25 V at 19 A and 125 °C, and a maximum junction temperature range of -55 to 125 °C.

Diode Arrays Feature Summary

• Optimized for ultra-low forward voltage drop specifically designed for OR-ing parallel power supplies
• Utilizes proprietary barrier technology allowing reliable operation up to 125 °C junction temperature
• Includes guard ring structure for enhanced ruggedness and long-term reliability
• Encapsulated in high purity, high temperature epoxy for improved mechanical strength and moisture resistance

Diode Arrays Applications

• Parallel switching power supplies
• Power converters
• Reverse battery protection circuits
• Redundant power subsystems

Diode Arrays Procurement Notes

Verify the specific datasheet revision and ordering suffix against official Vishay documentation before procurement. Confirm that the component meets industrial level qualification standards required for the target application. Ensure thermal management designs account for the specified junction-to-case thermal resistance values under actual operating conditions.

Diode Arrays Selection Notes

Select this component when low forward voltage drop is critical for minimizing power dissipation in parallel power supply configurations. Consider the 15 V reverse voltage rating and 40 A total current capacity relative to system requirements. Evaluate the TO-247AC package suitability for through-hole mounting and heatsinking constraints within the design.

Diode Arrays Part Context

This part belongs to the STPS series of Schottky rectifiers from Vishay. It is a dual center tap module distinct from single diode variants or other packages in the lineup. The 'L' designation indicates low forward voltage characteristics, while 'CW' specifies the TO-247 package style.

Diode Arrays Replacement Considerations

No public confirmed substitute part numbers are available in the provided source material.

Diode Arrays FAQ

What is the maximum repetitive avalanche current rating?

The STPS40L15CW supports a repetitive avalanche current of 2 A, decaying linearly to zero in 1 µsec.

Does the device support unclamped inductive switching?

Yes, the datasheet specifies an EAS (Energy Avalanche Stress) rating of 10 mJ per leg at TJ = 25 °C with IAS = 2 Amps and L = 5 mH.

What is the typical series inductance per leg?

The typical series inductance is 8 nH, measured lead to lead 5 mm from the package body.