TCST2103 optoelectronic switch photo interrupter

Transmissive Optical Interrupter Telemetry: Combines an infrared emitter LED and a phototransistor detector mounted face-to-face in a single slotted housing to detect physical beam interruption.

Non-Contact Precision Object Sensing: Triggers immediate optical detection without physical contact, making it ideal for high-speed endstop limit switching and encoder disk counting.

Integrated Optical Aperture Filter: Features built-in infrared filtering and tight optical alignment to reduce sensitivity to ambient room light and stray reflections.

Fast Microsecond Response Switching: Delivers rapid optical response times for accurate rpm tracking, pulse counting, and automated mechanical positioning.

4-Pin Through-Hole DIP Design: Standard 4-lead PCB mounting configuration with distinct emitter and detector pins for straightforward circuit wiring and soldering.

Housing Material: Black molded plastic slotted enclosure with infrared-transmissive lens windows and tin-plated copper leads.

Technical Specifications:

Gap Width: 3.1 mm optical slot.

Aperture Width: 1 mm.

Peak Emission Wavelength: 950 nm.

Color: Black Plastic Enclosure with Silver Terminal Pins.

Usage Advice: Wire the IR LED side through a current-limiting resistor to power; wire the phototransistor side with a pull-up or pull-down resistor to convert optical beam interruption into digital signal pulses.

Maintenance: Keep the 3.1 mm optical slot clear of dust, oil, or physical debris; clean gently with compressed air or a soft dry swab if obstructed.

Essential Mechanical Position Transducer: Position as a key sensor component for 3D printer home/endstop switches, CNC machine axis limits, rotary encoder wheel readers, and automated paper feeders.

Highlight Non-Contact Durability: Emphasize how non-contact optical interruption eliminates mechanical wear and switch bounce associated with traditional physical limit switches.

Recommended Cross-Sell Add-ons: Pair with QRD1114 Reflective Object Sensor, PT334-6C Infrared Receiver Phototransistor 5MM, Photo transistor 3DU33, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Light Sensor Module collection page as your standard transmissive photo interrupter switch.