TCDT1120/ TCDT1120G is a photocoupler, which features extra low coupling capacity, high common mode rejection, four CTR groups available, lead-free, component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC standard
The TCDT1120/TCDT1120G series is a phototransistor optocoupler with a gallium‑arsenide infrared LED, offered in a 6‑lead DIP package. It features extra‑low coupling capacitance, high common‑mode rejection, four CTR groups, and lead‑free, RoHS‑compliant construction.
The device meets safety standards such as UL1577, IEC60950 and DIN EN 60747‑5‑2, and is suitable for switch‑mode power supplies, computer peripherals and microprocessor interfaces. Detailed electrical characteristics, switching times, and typical performance curves are provided for design reference.
| Coupling capacitance (typical) | 0.2 pF |
|---|---|
| Collector‑emitter voltage (VCEO) | 90 V |
| Isolation test voltage (VISO) | 3750 VRMS (1 min) |
| Power dissipation (Pdiss) typical | 100 mW |
| Current Transfer Ratio (CTR) – G version | > 40 % |
The typical coupling capacitance is 0.2 pF.
It can withstand an isolation test voltage of 3750 VRMS for 1 minute.
It complies with UL1577, IEC60950, DIN EN 60747‑5‑2 and related safety standards.
The device is rated for a collector‑emitter voltage of 90 V.