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PDF H21B4 Data sheet ( Hoja de datos )
| Número de pieza | H21B4 | |
| Descripción | PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de H21B4 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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PHOTODARLINGTON
OPTICAL INTERRUPTER SWITCH
H21B4
PACKAGE DIMENSIONS
0.249 (6.35)
0.243 (6.15)
0.972 (24.7)
0.957 (24.3)
0.472 (12.0)
0.457 (11.6)
CL
+D
E+
0.755 (19.2)
0.745 (18.9)
Ø 0.133 (3.4)
Ø 0.126 (3.2)
(2X)
CL
0.39 (1.00)
0.34 (0.85)
0.103 (2.60) NOM
0.129 (3.3)
0.119 (3.0)
0.433 (11.0)
0.422 (10.7)
Optical
CL
0.125 (3.2)
0.119 (3.0)
.295 (7.5)
.272 (6.9)
CL
0.315 (8.0)
0.110 (2.8)
0.091 (2.3)
23
14
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.
H21B5
H21B6
SCHEMATIC
4
1
23
DESCRIPTION
The H21B4, H21B5 and H21B6 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 rejec-
tion, 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
1 page  
PHOTODARLINGTON
OPTICAL INTERRUPTER SWITCH
H21B4
H21B5
H21B6
Figure 4. Leakage Current vs. Temperature
DETECTOR
EMITTER
104
NORMALIZED TO
VCE = 45 V
TA = 25 °C
103
VCE = 45 V
102 VCE = 10 V
10
104
103
102
NORMALIZED TO
VR = 5 V
TA = 25 °C
10
11
0.1
25
50 75 100
T A, AMBIENT TEMPERATURE (°C)
0.1
25
50 75 100
T A, AMBIENT TEMPERATURE (°C)
4
2
1
.8
.6
.4
.2
0.1
10
Figure 5. Switching Speed vs. RL
IF
RL
+
VCC
PW = 300 ms
PRR = 100 pps
IF =
7.5
RL
AMPS, VCC = 5V
NORMALIZED TO
RL = 750 W
toff
ton
20 40 60 80 100 200 400 600 800 1000 1500
75 750
RL , LOAD RESISTANCE (W)
Figure 6. Output Current vs. Distance
d, DISTANCE (mils)
1.00
78.7
157.5
236.2
315
393.7
.1
BLACK
SHIELD
.01
+D
E+
d
o
.001
.00010
246
d, DISTANCE (mm)
NORMALIZED
TO VALUE WITH
SHIELD
REMOVED
BLACK
SHIELD
d
o
8 10
© 2002 Fairchild Semiconductor Corporation
Page 5 of 6
6/13/02
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet H21B4.PDF ] | |
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