CTNS-4603S

Diode Arrays Overview

The CTNS-4603S is a fast recovery diode manufactured by Sanken Electric USA Inc. It features a peak repetitive reverse voltage of 300 V and an average forward current rating of 60 A. The device achieves a maximum forward voltage drop of 1.2 V at 30 A and a reverse recovery time of 100 ns under specified test conditions. Packaged in a TO3P-3L through-hole configuration, it offers a thermal resistance from junction to case of 1.0 °C/W. The component operates within a junction temperature range of -40 to 150 °C.

Diode Arrays Feature Summary

• Optimized trade-off between forward voltage and reverse recovery time for efficient switching performance
• Low thermal resistance package design facilitating effective heat dissipation
• Lead frame construction compliant with RoHS standards

Diode Arrays Applications

• Secondary side rectifier diodes in flyback converters
• Secondary side rectifier diodes in LLC converters
• Freewheel diodes in offline buck converters
• Freewheel diodes in buck-boost converters

Diode Arrays Procurement Notes

Verify the specific revision status of the datasheet before procurement, as Sanken notes that product information is subject to change without notice due to improvements. Confirm compliance with applicable environmental regulations such as the EU RoHS Directive prior to integration. Ensure that the sourcing channel provides authentic components directly from authorized distribution networks to maintain reliability standards.

Diode Arrays Selection Notes

Select this component for designs requiring a balance between low conduction loss and moderate switching speed. The 60 A current rating suits medium-power applications where thermal management via a screw-mounted TO3P-3L package is feasible. Consider the 300 V blocking capability for circuits operating at lower DC bus voltages. Evaluate derating curves for average forward current based on expected case temperatures during operation.

Diode Arrays Part Context

This part belongs to Sanken's fast recovery diode lineup designed for general-purpose electronic equipment. The manufacturer explicitly marks this component as 'Not Recommended for New Designs,' indicating it may be superseded by newer generations or phased out. Engineers should review current product portfolios for alternative solutions intended for future development projects.

Diode Arrays Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Sanken Electric sales representatives for updated product recommendations suitable for new designs.