High Reliability Photocoupler
z Features
1. Current transfer ratio
( CTR：Min. 60% at IF=±1mA VCE=5V )
2. High isolation voltage between input and output
( Viso：5000Vrms )
3. Compact long creepage distance type package.
4. AC input.
z Application：
1. Programmable Controller Applications for Low Input
Photocouplers and High Vceo Photocouplers.
2. Telephone sets, telephone exchangers.
3. System appliances, Limit Switches, Sensors,
Thermostats etc.
4. Signal transmission between circuits of different
potentials and impedances.

Classification table of current
transfer ratio is shown below.
Model No. CTR ( % )
K30103A 60 ~ 600
K30103B 60 ~ 300