Intended for use as power, status, or warning indicators in panel applications, the 558 Series LED indicators have 3-mm emitters in a snap-in mount that fits in a 0.156-in. hole. The daylight-visible ...

If you’re working with 3.3V or 5V circuits, it’s easy for you to throw on a power or status LED here or there. [Tom Gralewicz] has found himself in a pickle, though, often working on projects with ...

This LED DC voltage indicator circuit is a voltmeter, rather than simply a battery tester. As such it may measure voltages as low as 3V. It utilizes venerable LM741 operational amplifiers applied as ...

APEM Inc. is expanding its line of LED indicators to feature HYPERBRIGHT LED indicators for daytime viewing and for applications where battery life and low power consumption are critical. APEM Inc. is ...

Termination is by solder lug, quickconnect, wire lead, and 200-mm extended wire. Package sizes are 6, 8, and 14 mm and come with prominent, recessed, or flushbezel styles in bright-chrome, blackchrome ...