Established in Japan in 1969, COSEL is one of the world’s leading designers and manufacturers of high-performance AC-DC Power supplies, DC-DC Converters and EMI Filters. With quality, reliability, & flexibility as our main focus, we pride ourselves on developing some of the highest quality and most reliable products anywhere in the world today. Read More

New Products
FETA Series

High efficiency 1U front end power supply with output voltages up to 350VDC and trim range down to near zero.

HCA Series

High efficiency 3500W liquid cooled power supply with ultra wide 3-phase input.

GHA Series

Ultra high efficiency 3x5" power supply with flexible hybrid cooling possibilities.

AEA Series

Free air convection cooled power supply with 300% peak capability, 2MOPP and OVCIII approvals for medical and industrial applications.

Best Sellers
PCA Series

Smart power supply with digital and analog programing and monitoring. Industrial and medical approved.

TUNS Series

Conduction cooled AC/DC brick power supply. TUNS1200 comes with wide voltage and current programming.

CHS Series

Ultra compact and high efficiency DC/DC brick converter.

MG Series

High power density DC/DC converter modules with industry standard pins, full potting and 10 year warranty.

Product Listing from Cosel

Passive Components

Power & Line Protection

Show All Products (854)

New Products from Cosel

Passive Components

Power & Line Protection

Show All Products (236)



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