Datasheet Details
| Part number | H21A3 |
|---|---|
| Manufacturer | ISOCOM |
| File Size | 2.59 MB |
| Description | Photointerrupters |
| Download | H21A3 Download (PDF) |
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Overview: ISOCOM COMPONENTS H21Ax, H22Ax.
Download the H21A3 datasheet PDF. This datasheet also includes the H21A1 variant, as both parts are published together in a single manufacturer document.
| Part number | H21A3 |
|---|---|
| Manufacturer | ISOCOM |
| File Size | 2.59 MB |
| Description | Photointerrupters |
| Download | H21A3 Download (PDF) |
|
|
|
The H21Ax and H22Ax series of opaque photointerrupters are single channel switches consisting of a Gallium Arsenide infrared emitting diode and a NPN silicon photo transistor mounted in a polycarbonate housing.
The package is designed to optimise the mechanical resolution, coupling efficiency, ambient light rejection, cost and reliability.
Operating on the principle that objects opaque to infrared will interrupt the transmission of light between the infrared emitting diode and the photo sensor, switching the output from an "ON" state to an "OFF" state.
| Brand Logo | Part Number | Description | Manufacturer |
|---|---|---|---|
 |
H21A3 | PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH | Fairchild Semiconductor |
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H21A3 | SLOTTED OPTICAL SWITCH | QT Optoelectronics |
| Part Number | Description |
|---|---|
| H21A1 | Photointerrupters |
| H21A2 | Photointerrupters |