Photodarlington Optical Interrupter Switch The H21B1, H21B2 and H21B3 consist of a gallium arsenide infrared emitting diode coupled with a silicon photodarlington in a plastic housing. The packaging system is designed to optimize the mechanical ...
Dual Precision Monostable The CD4538BC is a dual, precision monostable multivibrator with independent trigger and reset controls. The deviceis retriggerable and resettable, and the control inputs areinternally latched.