ET1102 Opto isolator

The ET1102 (often cross-referenced as the TCET1102) is a high-reliability, phototransistor-output optocoupler built for precision signal isolation.

Key Features

High Safety Standards: Meets rigorous VDE and IEC safety requirements for reinforced isolation.
Superior Noise Immunity: Designed with high common-mode rejection to handle "noisy" industrial environments.
Low Coupling Capacitance: Minimizes signal interference between input and output.
Stable CTR: Engineered for consistent performance even under fluctuating temperatures.

Technical Specifications

Maximum Emitter Forward Current: 60 mA
Detector : 70 V
Maximum Detector Current: 50 mA
Rise Time (): 3 µs
Fall Time (): 4.7 µs
Cut-off Frequency (): 110 kHz
Current Transfer Ratio (CTR): 63% to 125%

Pinout Configuration

1. Anode: LED Input (+)
2. Cathode: LED Input (-)
3. Emitter: Phototransistor Output
4. Collector: Phototransistor Input