Datasheet Details
| Part number | H21A6 |
|---|---|
| Manufacturer | Fairchild (now onsemi) |
| File Size | 101.11 KB |
| Description | PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH |
| Datasheet | H21A6_FairchildSemiconductor.pdf |
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Overview: PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH H21A4 PACKAGE DIMENSIONS 0.972 (24.7) 0.957 (24.3) 0.472 (12.0) 0.457 (11.6) C L 0.249 (6.35) 0.243 (6.15) + E D + H21A5 H21A6 Ø 0.133 (3.4) Ø 0.126 (3.2) (2X) C L 0.39 (1.00) 0.34 (0.85) 0.755 (19.2) 0.745 (18.9) 0.129 (3.3) 0.119 (3.0) 0.103 (2.60) NOM 0.433 (11.0) 0.422 (10.7) Optical C L SCHEMATIC 0.125 (3.2) 0.119 (3.0) C L .295 (7.5) .272 (6.9) 0.110 (2.8) 0.091 (2.3) 0.315 (8.0) 1 4 2 1 3 4 PIN 1 ANODE PIN 2 CATHODE PIN 3 COLLECTOR PIN 4 EMITTER 0.020 (0.51) (SQ) 2 3 NOTES: 1. Dimensions for all drawings are in inches (mm). 2. Tolerance of ± .010 (.25) on all non-nominal dimensions unless otherwise specified.
| Part number | H21A6 |
|---|---|
| Manufacturer | Fairchild (now onsemi) |
| File Size | 101.11 KB |
| Description | PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH |
| Datasheet | H21A6_FairchildSemiconductor.pdf |
|
|
|
The H21A series are gallium arsenide infrared emitting diode coupled with a silicon photodarlington in a plastic housing.
The packaging system is designed to optimize the mechanical resolution, coupling efficiency, ambient light rejection, cost and reliability.
The gap in the housing provides a means of interrupting the signal with an opaque material, switching the output from an “ON” to an “OFF” state.
| Brand Logo | Part Number | Description | Manufacturer |
|---|---|---|---|
 |
H21A6 | SOLTTED OPTICAL SWITCH | QT Optoelectronics |
| Part Number | Description |
|---|---|
| H21A | PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH |
| H21A1 | PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH |
| H21A2 | PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH |
| H21A3 | PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH |
| H21A4 | PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH |
| H21A5 | PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH |
| H21B1 | PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH |
| H21B2 | PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH |
| H21B3 | PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH |
| H21B4 | PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH |