CNY75A/ B/ C/ GA/ GB/ GC is an optocoupler produced by Vishay Semiconductors, which has low coupling capacitance and high common mode rejection.
The CNY75 series optocouplers from Vishay combine a phototransistor with a gallium arsenide infrared LED in a 6‑pin DIP package. They are intended for safe protective isolation in applications such as switch‑mode power supplies, line receivers, and computer peripheral interfaces.
The document lists key electrical parameters, including isolation voltage, current transfer ratio, and power dissipation, and details compliance with UL, VDE, and RoHS standards. Typical performance curves and safety ratings are provided for each variant (A, B, C, GA, GB, GC).
| Rated isolation voltage (RMS) | 600 VRMS |
|---|---|
| Current Transfer Ratio (CNY75A) | 63‑125 % |
| Maximum forward current (IF) | 130 mA |
| Maximum power dissipation (Pdiss) | 265 mW |
| Rated impulse voltage | 6 kV peak |
| Collector‑base voltage (VCBO) | 90 V |
| Coupling capacitance (typical) | 0.2 pF |
| Maximum junction temperature (Tj) | 125 °C |
The rated isolation voltage (RMS) is 600 VRMS.
The CNY75B has a CTR of 100 % to 200 %.
It complies with UL1577, VDE, DIN EN standards and is RoHS‑compliant.
The device can handle a forward current up to 130 mA.