TCST1103 Slotted Optical Switch Sensor DIP4 (TCST1103 Opto Interrupter)
The TCST1103 Slotted Optical Switch is a transmissive optical sensor designed for non contact object detection and position sensing. It consists of an infrared emitting diode and a phototransistor aligned face to face inside a slotted housing. When an object interrupts the IR beam within the slot, the phototransistor output changes state, enabling precise detection and switching.
This sensor operates on the through beam principle, where an object blocks the light path between emitter and detector, making it highly reliable for encoder and motion sensing applications. The TCST1103 is widely used in India for embedded systems, industrial electronics, and automation equipment due to its stable performance and fast response.
Key Features
- Slotted Optical Switch: Through beam IR detection
- 3.1mm Slot Width: Standard gap for encoder applications
- Integrated IR LED and Phototransistor: Complete sensing unit
- Fast Response Time: Suitable for high speed switching
- Daylight Blocking Filter: Reliable operation in ambient light
- Compact DIP4 Package: Easy PCB mounting
Specifications
- Sensor Type: Slotted opto interrupter
- Sensing Method: Through beam detection
- Slot Width: 3.1mm
- Output Type: Phototransistor output
- Forward Current: Up to 60mA
- Collector Current: Up to 4mA
- Collector Emitter Voltage: Up to 70V
- Response Time: Approx 10µs rise, 8µs fall
- Operating Temperature: -55°C to +85°C
- Mounting Type: Through hole
- Package Type: 4 pin slotted module
- Applications: Encoder systems speed sensing position detection object counting industrial electronics embedded systems
Pinout Configuration DIP4 Layout
- Anode pin of IR emitter
- Cathode pin of IR emitter
- Collector pin of phototransistor
- Emitter pin of phototransistor
