TCET1100/TCET1100G is an optocoupler produced by Vishay Semiconductors, it has extra low coupling capacity, high common mode rejection, low temperature coefficient of CTR, reinforced isolation provides circuit protection against electrical shock (Safety Class II), lead-(Pb)-free component, component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC requirements, UL1577, CSA 22.2, BSI, DIN EN 60747-5-2 and FIMKO certification, applications for switch-mode power supplies, line receiver, computer peripheral interface, microprocessor system interface, etc.
The TCET1100/TCET1100G is a phototransistor optocoupler with a gallium arsenide infrared‑emitting diode in a 4‑lead DIP package. It offers extra low coupling capacitance, high common‑mode rejection, and a wide CTR range, making it suitable for reinforced isolation in safety‑class II applications.
The device is rated for up to 600 VRMS isolation, operates from –40 °C to +100 °C ambient, and complies with UL1577, CSA 22.2, BSI EN 60065, EN 60950, and DIN EN 60747‑5‑2 safety standards. Typical electrical parameters, thermal characteristics, and package dimensions are detailed in the datasheet.
| Coupling capacitance (typical) | 0.2 pF |
|---|---|
| Current Transfer Ratio (CTR) range | 50 – 600 % |
| Forward voltage (typical) | 1.25 – 1.6 V |
| Reverse voltage | 6 V |
| Isolation voltage (RMS) | 600 VRMS |
| Operating ambient temperature range | -40 to +100 °C |
| Storage temperature range | -55 to +125 °C |
| Soldering temperature | 260 °C |
| LED power dissipation (25 °C) | 100 mW |
| Output power dissipation (25 °C) | 150 mW |
The typical coupling capacitance is 0.2 pF.
The isolation voltage rating is 600 VRMS (848 V peak).
It operates from –40 °C to +100 °C ambient temperature.