QBAR® switches are solid-state, 3 terminal, normally closed (NC), non-isolated devices. Reliable and cost-effective, they boast:

no power supply needed simplified control wiring "fail safe" over a wide range of system failure conditions much lower control/input power requirement than electromechanical or optoelectronic (solid state) relays "zeroize" peripherals and PCMCIA modules fewer PCB jumpers

Part	Description	Datasheet (PDF)	Datasheet (HTML)
QB104Z	TO-92 20 Volts 175 mA Low cost	QB104Z (58.1 KB)	QB104Z
QB210T	TO-220 20 Volts 3 Amps Grounded copper tab	QB210T (64.5 KB)	QB210T
QB104M3G	SOT-23 20 Volts 175 mA Pb-free RoHS	QB104M3G (740.0 KB)	QB104M3G

PDF files require the Adobe Acrobat® Reader to be viewed. Windows XP (22.3 MB) Macintosh (xx.x MB)

Download App Notes App Notes (106 KB)

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Three QB104M3G QBAR® switches on the end of a pen.

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