163CMQ080

Overview

The Vishay 163CMQ080 is an isolated center tap Schottky rectifier module in a TO-249AA package. It features a maximum DC reverse voltage of 80 V and a maximum average forward current of 160 A per leg at a case temperature of 87 °C with a rectangular waveform. The device supports a junction temperature range from -55 °C to 175 °C. Electrical characteristics include a maximum forward voltage drop of 0.98 V at 80 A and 1.17 V at 160 A, measured at 125 °C. Maximum reverse leakage current is 1.5 mA at 25 °C and 20 mA at 125 °C.

Feature Summary

• Isolated base configuration for enhanced thermal management
• Proprietary barrier technology enabling reliable operation up to 175 °C junction temperature
• High purity, high temperature epoxy encapsulation for mechanical strength and moisture resistance
• Guard ring design for improved ruggedness and long-term reliability

Applications

• Switching power supplies
• Converters
• Freewheeling diodes
• Reverse battery protection

Procurement Notes

Verify the specific part number suffix against official manufacturer documentation to confirm exact electrical ratings and packaging specifications. Confirm RoHS compliance status and industrial level qualification requirements prior to procurement. Ensure mounting torque specifications are strictly adhered to during assembly to maintain thermal performance and mechanical integrity.

Selection Notes

Select this component for applications requiring high current handling and elevated temperature stability. Evaluate thermal resistance values and allowable case temperatures based on the specific duty cycle and waveform conditions. Consider the isolated base feature when designing heatsinking strategies to ensure optimal heat dissipation and electrical isolation.

Part Context

This component belongs to the 163CMQ series of isolated center tap Schottky rectifier modules manufactured by Vishay General Semiconductor. The series offers various voltage ratings including 60 V, 80 V, 90 V, and 100 V options. These modules are designed for industrial level applications and utilize proprietary barrier technology to minimize reverse leakage currents at high temperatures.

Replacement Considerations

Public confirmed substitute part numbers: None identified.