Catalog > Semiconductors > Opto-Electronic Components > Opto Couplers 1 Channel Photo Transistor Opto Isolator 1 Channel Photo Transistor Opto Isolator TLP521-1GB 1 Channel Photo Transistor Opto Isolator • 4 Pin DIP • BVCEO= 55V • VIsol= 5.3kV 28.50 ZAR inc for 1 Each 39 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Features with In Line Led's and Transistors Additional Information Model TLP521-1GB Current Transfer Ratio 0.06% Isolation Voltage 5.3V Collector to Emitter Voltage 55V Package 4 Pin DIP