H21A4
H21A4 is PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH manufactured by Fairchild Semiconductor.
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)
2 1
3 4
PIN 1 ANODE PIN 2 CATHODE PIN 3 COLLECTOR PIN 4 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...
