H22B3

PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH

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PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH
H22B1
PACKAGE DIMENSIONS
0.472 (12.0) 0.457 (11.6) C L 0.249 (6.35) 0.243 (6.15)
E D

H22B2

H22B3

C L 0.39 (1.00) 0.34 (0.85) 0.129 (3.3) 0.119 (3.0) Optical C L

.133 (3.38) .073 (1.85)

0.433 (11.0) 0.422 (10.7)

0.125 (3.2) 0.119 (3.0) C L .295 (7.5) .272 (6.9)

.315 (8.00)

0.110 (2.8) 0.091 (2.3)

SCHEMATIC

2 1

3 4

PIN PIN PIN PIN

1 2 3 4

ANODE CATHODE COLLECTOR EMITTER

0.020 (0.51) (SQ)

NOTES: 1. Dimensions for all drawings are in inches (mm). 2. Tolerance of .010 (.25) on all non-nominal dimensions unless otherwise specified.

DESCRIPTION
The H22B1, H22B2 and H22B3 consist of a 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.

FEATURES
Opaque housing Low cost .035" apertures High IC(ON)

2002 Fairchild Semiconductor Corporation

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6/13/02