83CNQ080SM

Overview

The 83CNQ080SM is a dual common cathode Schottky rectifier manufactured by SMC Diode Solutions. It features an 80-volt maximum repetitive reverse voltage and a combined average forward rectified current of 3 amperes per common cathode configuration. The device utilizes a low-profile surface-mount package designed for high-efficiency power conversion applications. Key electrical characteristics include a low forward voltage drop to minimize conduction losses and a fast switching speed suitable for high-frequency operations.

Feature Summary

• Dual common cathode configuration for efficient bridgeless PFC or synchronous rectification topologies
• Low forward voltage drop reduces power dissipation and improves system efficiency
• Fast switching characteristics support high-frequency operation in modern power supplies

Applications

• Bridgeless Power Factor Correction (PFC) circuits
• Synchronous rectification in DC-DC converters
• High-frequency AC/DC adapters and chargers

Procurement Notes

Verify the specific suffix code against the manufacturer's official datasheet to confirm exact pinout, thermal resistance, and packaging specifications. Ensure the component meets RoHS compliance requirements if mandated by your design standards. Cross-reference the part number with authorized distributors to confirm authenticity and traceability documentation availability before finalizing procurement.

Selection Notes

Select this component when designing circuits requiring a compact dual Schottky solution with low forward voltage characteristics. Consider the thermal performance and package size constraints relative to the expected current load. Evaluate the reverse leakage current specifications at elevated temperatures to ensure reliability in high-ambient environments compared to standard silicon rectifiers.

Part Context

This component belongs to SMC Diode Solutions' series of surface-mount Schottky rectifiers. These devices are engineered to replace bulkier through-hole alternatives in space-constrained designs. The dual common cathode arrangement allows for simplified circuit layouts in applications requiring two rectifying paths sharing a common ground reference.

Replacement Considerations

Consult official substitution guides for equivalent dual Schottky diodes with matching voltage and current ratings. Verify that alternative components offer comparable forward voltage drops and reverse recovery times to maintain circuit performance. Ensure package compatibility and pinout alignment to facilitate direct board replacement without redesign.