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 Ø 0.
133 (3.
4) Ø 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 specified.
2 3 DESCRIPTION ...

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