87CNQ020ASL

Overview

The VS-87CNQ020ASL is a center tap Schottky rectifier module from the Vishay 87CNQ020A series, housed in the D-61-8-SL package. It features two independent elements with a common cathode configuration. The device supports a maximum average forward current of 80 A and a repetitive peak reverse voltage of 20 V. It operates reliably up to a junction temperature of 150 °C. Key electrical characteristics include a typical forward voltage drop of 0.32 V at 40 Apk and 125 °C per leg, and a maximum non-repetitive surge current of 6000 A for a 5 μs sine pulse.

Feature Summary

• Optimized for ultralow forward voltage drop specifically for 3.3 V output power supplies
• Proprietary barrier technology allows reliable operation up to 150 °C junction temperature
• Guard ring design provides enhanced ruggedness and long term reliability
• High purity, high temperature epoxy encapsulation ensures mechanical strength and moisture resistance

Applications

• Parallel switching power supplies
• Converters
• Reverse battery protection
• Redundant power subsystems

Procurement Notes

Verify the specific ordering suffix ASL corresponds to the D-61-8-SL package style as defined in the manufacturer's ordering information table. Confirm that the component meets RoHS compliance standards if required by your application specifications. Ensure proper mounting torque between 40 and 58 kgf·cm is applied when using compatible variants. Check technical documentation for any updates regarding lead-free processing or material declarations before finalizing procurement orders.

Selection Notes

Select this component for applications requiring high current density and low forward voltage drop in compact surface mount configurations. The common cathode topology simplifies circuit design for dual-leg rectification needs. Consider the thermal resistance values when designing heatsinking solutions to maintain junction temperatures within safe operating limits during continuous DC operation or high duty cycle square wave conditions.

Part Context

This part belongs to the Vishay High Power Products Schottky Rectifier series, utilizing new generation 3 packaging technology. The 87CNQ020A series is designed for industrial level qualification and offers a small footprint with high current capabilities. The D-61-8-SL variant specifically denotes the leaded surface mount package option within this family, distinct from the standard D-61-8 or SM package styles.

Replacement Considerations

Direct substitutes within the same series include VS-87CNQ020A (D-61-8) and VS-87CNQ020ASM (D-61-8-SM). Verify pinout compatibility and thermal interface requirements when swapping between package styles. Ensure the replacement part maintains the same voltage and current ratings to preserve system performance and safety margins.

FAQ

What is the maximum non-repetitive surge current rating?

The maximum non-repetitive surge current is 6000 A for a 5 μs sine pulse or 1100 A for a 10 ms sine pulse.

How does the forward voltage drop vary with temperature?

The forward voltage drop decreases as temperature increases; it is typically 0.45 V at 25 °C and drops to 0.32 V at 125 °C for a 40 A load per leg.

What is the typical series inductance per leg?

The typical series inductance per leg is 5.5 nH, measured lead to lead 5 mm from the package body.