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COSEL Plus

Information site for the latest
in power supply technology

Selection Support

Modification
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Certifications

EMI Filter
Selection Flowchart

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Tool

Design Tools

External Trim Resistor Hold-Up Time Internal Power Loss Inrush Current Life Expectancy

Application Guide

Power Module Type Enclosed Type PCB Mount Type Application Software Handling of Open Frame Type power supplies Caution for Safety and Products

Sample programs download（For products with communication function）

Sample programs download

Repair & Q&A

Troubleshooting

Q&A（FAQ）

Gain practical insights into switching power supplies, EMI filters, and the latest technologies, along with tips for selecting peripheral circuits.
Use these resources to enhance your skills and deepen your product knowledge.

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