The TCDT1110/ TCDT1110G is an optocoupler produced by Vishay Semiconductors. It has low coupling capacity, high common mode rejection, low temperature coefficient of CTR and unconnected base. The product meets the requirements of ROHS 2002/95/EC and WEEE 2002/96/EC standards and has obtained UL1577, BSI IEC60950 IEC60065, DIN EN 60747-5-2 (VDE0884) DIN EN 60747-5-5 pending, FIMKO certification. Suitable for switch-mode power supplies, line receivers, computer peripheral interfaces and microprocessor system interfaces.
The TCDT1110 and TCDT1110G are optocouplers that combine a gallium arsenide infrared LED with a phototransistor in a 6‑pin DIP package. They offer extra‑low coupling capacitance, high common‑mode rejection, and lead‑free, RoHS‑compliant construction for safety‑critical isolation applications.
The document lists absolute maximum ratings, detailed electrical characteristics such as forward voltage, collector‑emitter voltage, isolation test voltage, and switching times, as well as compliance with standards like UL1577, IEC60950, and DIN EN 60747‑5‑2. Package dimensions, marking details, and legal disclaimer information are also included. This manual is written in Chinese.
| Forward voltage (VF) typical | 1.2‑1.5 V |
|---|---|
| Collector‑emitter voltage (VCEO) max | 70 V |
| Isolation test voltage (VISO) | 3750 VRMS for 1 min |
| Power dissipation (Pdiss) typical | 100 mW |
| Current Transfer Ratio (CTR) | >100 % |
| Coupling capacitance (Ck) typical | 0.3 pF |
The maximum forward current is 60 mA.
It is rated for an isolation test voltage of 3750 VRMS for 1 minute.
The CTR is greater than 100 %.