15CTQ035

Overview

The Vishay 15CTQ035 is a dual common-cathode Schottky rectifier in a TO-220AB package. It provides a maximum average forward current of 15 A and a maximum repetitive peak reverse voltage of 35 V. The device features a low forward voltage drop of 0.70 V at 15 A and 125 °C, with a maximum reverse leakage current of 32 mA at rated voltage and 125 °C. It supports junction temperatures up to 150 °C and includes guard ring protection for enhanced ruggedness.

Feature Summary

• Dual common-cathode configuration optimized for low forward voltage drop
• Guard ring structure designed for enhanced ruggedness and long-term reliability
• High purity epoxy encapsulation providing mechanical strength and moisture resistance
• Qualified for industrial level operation with high temperature tolerance

Applications

• Switching power supplies
• DC-to-DC converters
• Freewheeling diodes
• Reverse battery protection

Procurement Notes

Verify the specific suffix against the ordering information table to confirm lead-free status and packaging quantity. Standard production units typically come in tubes of 50 pieces. Ensure the voltage rating matches the application requirements, as the series includes 40 V and 45 V variants. Contact technical support for detailed thermal or electrical queries.

Selection Notes

Select this component for applications requiring a center-tap configuration with moderate leakage characteristics. The TO-220AB package facilitates heatsinking for high current operations. Consider the thermal resistance values when designing the cooling system to maintain junction temperature within the specified range under continuous load conditions.

Part Context

This part belongs to the 15CTQ... series of Schottky rectifiers from Vishay High Power Products. The series offers various voltage ratings including 35 V, 40 V, and 45 V options. All variants share the same physical package and general electrical characteristics, differing primarily in their maximum reverse voltage capabilities.

Replacement Considerations

Direct substitutes include other Vishay parts in the same series with different voltage ratings, such as the 15CTQ040 or 15CTQ045, provided the lower voltage rating meets the circuit requirements. Verify pinout compatibility and thermal performance before substitution.

FAQ

What is the maximum non-repetitive surge current per leg?

The maximum non-repetitive surge current per leg is 810 A for a 5 µs sine wave or 3 µs rectangular pulse.

Does the 15CTQ035 support avalanche energy?

Yes, it has a non-repetitive avalanche energy rating of 10 mJ per leg at TJ = 25 °C with IAS = 1.20 A and L = 11.10 mH.

What is the typical series inductance per leg?

The typical series inductance per leg is 8.0 nH, measured lead to lead 5 mm from the package body.