This is the price inquiry on Taobao in China：0.11yuan
CT817C Spot photocoupler DIP4 new integrated circuit with order Original electronic components
High isolation 5000 VRMS
CTR flexibility available see order information
DC input with transistor output
External Creepage > 7.4mm
Distance Through lsolation 2 0.4mm
Spatial Distance 2 7.5mm(S/SL Type)
Spatial Distance ≥ 8.0mm (M/SLM Type)
Operating Temperature range - 55 °C to 110 °C
Regulatory Approvals
The CT817 series consists of a photo transistoroptically coupled to a gallium arsenide lnfrared.emitting diode in a 4-lead DlP package different leadforming options.
Applications
Switch mode power supplies
Computer peripheral interface
Microprocessor system interface
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