SENSOR OPTO SLOT 3MM TRANS THRU

H21A2

Manufacturer Part NumberH21A2
DescriptionSENSOR OPTO SLOT 3MM TRANS THRU
ManufacturerFairchild Optoelectronics Group
TypeUnamplified
H21A2 datasheet
 


Specifications of H21A2

Sensing Distance0.118" (3mm)Sensing MethodTransmissive
Output ConfigurationPhototransistorCurrent - Dc Forward (if)50mA
Current - Collector (ic) (max)20mAVoltage - Collector Emitter Breakdown (max)30V
Response Time8µs, 150µsMounting TypeThrough Hole
Package / CasePCB MountOperating Temperature-55°C ~ 100°C
Lead Free Status / RoHS StatusLead free / RoHS Compliant  
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PACKAGE DIMENSIONS
0.972 (24.7)
0.957 (24.3)
0.472 (12.0)
0.457 (11.6)
C L
+
D
0.249 (6.35)
0.243 (6.15)
E
+
0.755 (19.2)
0.745 (18.9)
0.129 (3.3)
.073 (1.85)
0.119 (3.0)
.133 (3.38)
0.433 (11.0)
0.422 (10.7)
0.125 (3.2)
0.315 (8.0)
0.119 (3.0)
L C
.295 (7.5)
.272 (6.9)
2
3
1
4
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.
ABSOLUTE MAXIMUM RATINGS
Parameter
Operating Temperature
Storage Temperature
Soldering Temperature (Iron)
(2,3 and 4)
Soldering Temperature (Flow)
(2 and 3)
INPUT (EMITTER)
Continuous Forward Current
Reverse Voltage
Power Dissipation
(1)
OUTPUT (SENSOR)
Collector to Emitter Voltage
Emitter to Collector Voltage
Collector Current
Power Dissipation (T
= 25°C)
(1)
C
2001 Fairchild Semiconductor Corporation
DS300290
5/02/01
H21A1 / H21A2 / H21A3
OPTICAL INTERRUPTER SWITCH
DESCRIPTION
The H21A1, H21A2 and H21A3 consist of a
gallium arsenide infrared emitting diode
Ø 0.133 (3.4)
Ø 0.126 (3.2)
(2X)
coupled with a silicon phototransistor in a
plastic housing. The packaging system is
L C
designed to optimize the mechanical
0.39 (1.00)
0.34 (0.85)
resolution, coupling efficiency, ambient light
rejection, cost and reliability. The gap in the
housing provides a means of interrupting the
Optical
signal with an opaque material, switching the
C L
output from an “ON” to an “OFF” state.
FEATURES
0.110 (2.8)
• Opaque housing
0.091 (2.3)
• Low cost
PIN 1 ANODE
PIN 2 CATHODE
• .035” apertures
PIN 3 COLLECTOR
PIN 4 EMITTER
• High I
C(ON)
1. Derate power dissipation linearly 1.33 mW/°C above 25°C.
2. RMA flux is recommended.
3. Methanol or isopropyl alcohols are recommended as cleaning
agents.
4. Soldering iron tip
(T
= 25°C unless otherwise specified)
A
Symbol
T
OPR
T
STG
T
SOL-I
T
SOL-F
I
F
V
R
P
D
V
CEO
V
ECO
I
C
P
D
1 OF 5
PHOTOTRANSISTOR
SCHEMATIC
1
2
(1.6mm) minimum from housing.
1/16”
Rating
Unit
-55 to +100
°C
-55 to +100
°C
240 for 5 sec
°C
260 for 10 sec
°C
50
mA
6
V
100
mW
30
V
4.5
V
20
mA
150
mW
www.fairchildsemi.com
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H21A2 Summary of contents

  • Page 1

    ... Fairchild Semiconductor Corporation DS300290 5/02/01 H21A1 / H21A2 / H21A3 OPTICAL INTERRUPTER SWITCH DESCRIPTION The H21A1, H21A2 and H21A3 consist of a gallium arsenide infrared emitting diode Ø 0.133 (3.4) Ø 0.126 (3.2) (2X) coupled with a silicon phototransistor in a plastic housing. The packaging system is ...

  • Page 2

    ... OUTPUT (SENSOR) Emitter to Collector Breakdown Collector to Emitter Breakdown Collector to Emitter Leakage COUPLED On-State Collector Current Saturation Voltage mA, V Turn-On Time mA, V Turn-Off Time F www.fairchildsemi.com H21A1 / H21A2 / H21A3 OPTICAL INTERRUPTER SWITCH (T =25°C)(All measurements made under pulse condition) A TEST CONDITIONS SYMBOL ...

  • Page 3

    ... DS300290 5/02/01 H21A1 / H21A2 / H21A3 OPTICAL INTERRUPTER SWITCH Figure 1. Output Current vs. Input Current NORMALIZED PULSED P = 100 sec W PRR = 100 pps 100 I , INPUT CURRENT (mA) F Figure 2. Output Current vs. Temperature NORMALIZED mA INPUT PULSED I = 100 -55 -40 - AMBIENT TEMPERATURE ( C) A Figure ...

  • Page 4

    ... Figure 5. Switching Speed vs 300 s PRR = 100 pps AMPS NORMALIZED LOAD RESISTANCE ( ) L www.fairchildsemi.com H21A1 / H21A2 / H21A3 OPTICAL INTERRUPTER SWITCH Figure 4. Leakage Current vs. Temperature DETECTOR NORMALIZED 0 100 AMBIENT TEMPERATURE ( 1. off . .001 .0001 10K PHOTOTRANSISTOR EMITTER NORMALIZED 100 T , AMBIENT TEMPERATURE ( C) A Figure 6. Output Current vs. Distance d, DISTANCE (mils) 78 ...

  • Page 5

    ... DS300290 5/02/01 H21A1 / H21A2 / H21A3 PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system affect its safety or effectiveness ...