The output logic levels are compatible with standard TTL and CMOS circuits, simplifying the interface with microcontrollers. Typical Applications
If you are looking to understand the electrical characteristics, pinouts, and practical applications of the A1458, you have come to the right place.
Inside the package, pin 1 connects to the LED’s anode, pin 2 to its cathode. The phototransistor sits with its collector on pin 4 and emitter on pin 3. There is no base pin exposed; base current is generated solely by illumination.
(Top View) ┌───┐ 1│o │4 │ │ 2│ │3 └───┘
The output logic levels are compatible with standard TTL and CMOS circuits, simplifying the interface with microcontrollers. Typical Applications
If you are looking to understand the electrical characteristics, pinouts, and practical applications of the A1458, you have come to the right place.
Inside the package, pin 1 connects to the LED’s anode, pin 2 to its cathode. The phototransistor sits with its collector on pin 4 and emitter on pin 3. There is no base pin exposed; base current is generated solely by illumination.
(Top View) ┌───┐ 1│o │4 │ │ 2│ │3 └───┘
© 2026 Burlington India. All Rights Reserved.