VS-47CTQ020PBF

Diode Arrays Overview

The Vishay VS-47CTQ020PBF is a center-tap Schottky rectifier featuring two independent 20 A legs in a TO-220AB package. It provides a maximum repetitive reverse voltage of 20 V and operates up to a junction temperature of 150 °C. The device exhibits an ultralow forward voltage drop of 0.34 V at 20 A and 125 °C, with a maximum non-repetitive surge current capability of 1000 A per leg.

Diode Arrays Feature Summary

• Optimized for ultralow forward voltage drop specifically for 3.3 V output power supplies
• Features a guard ring structure to enhance ruggedness and long-term reliability
• Utilizes high purity, high temperature epoxy encapsulation for mechanical strength and moisture resistance

Diode Arrays Applications

• Switching power supplies
• Converters
• Reverse battery protection
• Redundant power subsystems

Diode Arrays Procurement Notes

Verify the specific ordering suffix when sourcing components. The PbF designation indicates lead-free and RoHS compliance, while the -N3 suffix adds halogen-free status. Confirm that the required quantity matches the standard packaging minimums specified by the manufacturer for antistatic plastic tubes.

Diode Arrays Selection Notes

Select this component for applications requiring high-frequency operation and robust thermal performance up to 150 °C. Ensure the circuit design accommodates the common cathode configuration and verify that the 20 V reverse voltage rating aligns with the system's peak operating requirements.

Diode Arrays Part Context

This part belongs to the Vishay Schottky Q series, designed for high current density and low voltage applications. It utilizes proprietary barrier technology to achieve superior electrical characteristics compared to standard silicon rectifiers, making it suitable for demanding power conversion environments.

Diode Arrays Replacement Considerations

The VS-47CTQ020-N3 serves as a direct replacement offering identical electrical specifications with added halogen-free compliance. Verify pinout compatibility and thermal resistance values before substituting with other manufacturers' equivalents.

Diode Arrays FAQ

What is the maximum average forward current per leg?

The maximum average forward current per leg is 20 A under rectangular waveform conditions at a case temperature of 135 °C.

How does the junction capacitance vary with reverse voltage?

The typical junction capacitance decreases as the reverse voltage increases, measured at 3000 pF at 5 VDC with a test signal range of 100 kHz to 1 MHz.

Is the base connected to the cathode?

Yes, the base is electrically connected to the common cathode terminal.