H21A1 Slotted Optical Switch (Opto-Isolator) – Phototransistor Output, 3.1mm Slot
Imported Product Terms
This item is sourced internationally. You pay 80% upfront to confirm the order, and the remaining 20% upon collection from our office after ~15 days.
The H21A1 Slotted Optical Switch is a high-performance infrared (IR) opto-isolator designed for precision non-contact sensing. It features a gallium arsenide IR emitting diode facing an NPN silicon phototransistor across a standard 3.1mm gap. Its robust package allows for accurate position, counting, and motion control in demanding industrial electronic systems.
Key features:
Design: 3.1mm (0.122") wide sensing gap.
Compatibility: NPN Phototransistor output, suitable for direct interface with digital logic.
Applications: Assembly lines, paper handling, robotic arms, and limit switches.
Packaging: Isolated for safety and noise reduction.