KINGBRIGHT KB815B 光电耦合器, UL与VDE0884认证, 4-DIP
The KB815 is a 1-channel 4-pin Optically Coupled Isolator/Photocoupler contains a GaAS LED and a Darlington silicon phototransistor. It provides high isolation voltage between input and output Viso=5000Vrms. It has lead pitch of 2.54mm.
Avoid removing the residual flux with Freon-based and chlorine-based cleaning solvent. Be aware that power is suddenly into the component any surge current may cause damage happen.