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IC, TLP521-4, Four Photocoupler, DIP16. The TOSHIBA TLP521-1 consist of a photo-transistor optically coupled to a gallium arsenide infrared emitting diode. TLP521-4 provides four isolated channels in a sixteen plastic DIP package.
| Collector-emitter voltage: 55 V (min) | |
| Current transfer ratio: 50% (min) | |
| Isolation voltage: 2500 Vrms (min) |
