器件名称: H21B1
功能描述: PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH
文件大小: 377.33KB 共6页
简 介:PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH
H21B1
PACKAGE DIMENSIONS
0.972 (24.7) 0.957 (24.3)
H21B2
H21B3
0.472 (12.0) 0.457 (11.6)
C L
0.133 (3.4) 0.126 (3.2) (2X)
0.249 (6.35) 0.243 (6.15)
+ E
D +
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
0.125 (3.2) 0.119 (3.0)
C L .295 (7.5) .272 (6.9)
0.315 (8.0)
SCHEMATIC
0.110 (2.8) 0.091 (2.3)
2 1
3 4
PIN 1 ANODE PIN 2 CATHODE PIN 3 COLLECTOR PIN 4 EMITTER
0.020 (0.51) (SQ)
1
4
NOTES: 1. Dimensions for all drawings are in inches (mm). 2. Tolerance of ± .010 (.25) on all non-nominal dimensions unless otherwise specied.
2
3
DESCRIPTION
The H21B1, H21B2 and H21B3 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 efciency, 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
Page 1 of 6
6/13/02
PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH
H21B1 H21B2 H21B3
ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise specied)
Parameter Operating Temperature Storage Temperature Soldering Temperature (Iron)(2,3 and 4) Symbol TOPR TSTG TSOL-I TSOL-……
