CUI INC – Board-mount AC-DC power supply for low-power circuits


The VSK-S3 series of board-mount AC-DC power supplies from CUI Inc., can easily be accommodated in low-power and portable electronic devices in which board space is limited.

Measuring 37mm x 23mm x 15mm, these encapsulated power modules accept universal mains-voltage inputs, and provide a choice of six fixed output voltages from 3.3V to 24V DC. All the VSK-S3 units have a continuous-power rating of 3W, apart from the VSK-S3-3R3U, which is rated for 2.3W.

Offering high efficiency, and providing isolation rated at 3kV AC, the VSK-S3 modules achieve a typical load-regulation accuracy of ±1%.

• Over-voltage, over-temperature and short-circuit protections
• UL/cUL safety approvals
• Low no-load power consumption