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Single Channel Optocoupler

The 66158 contains a gallium arsenide infrared LED optically coupled to a silicon planar phototransistor. The optocoupler is built on a TO-46 header. The collector of the phototransistor is electrically connected to the case. This optocoupler is capable of transmitting signals between two galvanic sources. The potential difference between transmitter and receiver should not go over the maximum isolation voltage. The internal base connection has been eliminated for improved noise immunity.
Product Family Standard
Collector Isolated
Forward Voltage 25°C 1.5V at 10mA
IC(ON) min. @ IF 4.0mA at 10.0mA
Number of Channels 1
Operating Temperature -55°C to +125°C
Output Type Phototransistor
Package TO-72 Metal Can
Screening TX


· High Reliability
· Base lead eliminated for improved noise immunity
· Rugged package
· Stability over wide temperature
· +500V electrical isolation


· Eliminate ground loops
· Level shifting
· Line receiver
· Switching power supplies
· Motor control


Models & Simulations

Similar Products

Product No. Industry Number BVCEO Collector Forward Voltage 25°C IC(ON) min. @ IF Number of Channels Output Type Package QML Screening
66158-001 - 50V Isolated 1.5V at 10mA 4.0mA at 10.0mA 1 Phototransistor TO-72 Metal Can - Commercial
66158-011 - 50V Isolated 1.5V at 10mA 4.0mA at 10.0mA 1 Phototransistor TO-72 Metal Can - Military Temp. Tested

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Single Channel Optocoupler