Fairchild H21A2 Phototransistor optical interrupter switch Datasheet

H21A1 / H21A2 / H21A3
PHOTOTRANSISTOR
OPTICAL INTERRUPTER SWITCH
DESCRIPTION
PACKAGE DIMENSIONS
The H21A1, H21A2 and H21A3 consist of a
0.972 (24.7)
0.957 (24.3)
gallium arsenide infrared emitting diode
Ø 0.133 (3.4)
Ø 0.126 (3.2)
(2X)
0.472 (12.0)
0.457 (11.6)
coupled with a silicon phototransistor in a
CL
0.249 (6.35)
0.243 (6.15)
+
D
E
+
plastic housing. The packaging system is
CL
designed to optimize the mechanical
0.39 (1.00)
0.34 (0.85)
0.755 (19.2)
0.745 (18.9)
resolution, coupling efficiency, ambient light
rejection, cost and reliability. The gap in the
0.129 (3.3)
0.119 (3.0)
.073 (1.85)
.133 (3.38)
housing provides a means of interrupting the
Optical
CL
0.433 (11.0)
0.422 (10.7)
signal with an opaque material, switching the
output from an “ON” to an “OFF” state.
0.125 (3.2)
0.119 (3.0)
0.315 (8.0)
FEATURES
CL
0.110 (2.8)
0.091 (2.3)
.295 (7.5)
.272 (6.9)
2
3
1
4
• .035” apertures
2
3
• High IC(ON)
NOTES:
1. Dimensions for all drawings are in inches (mm).
2. Tolerance of ± .010 (.25) on all non-nominal dimensions
unless otherwise specified.
 2001 Fairchild Semiconductor Corporation
DS300290
5/02/01
4
• Low cost
0.020 (0.51) (SQ)
ABSOLUTE MAXIMUM RATINGS
1
• Opaque housing
PIN 1 ANODE
PIN 2 CATHODE
PIN 3 COLLECTOR
PIN 4 EMITTER
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 (TC = 25°C)(1)
SCHEMATIC
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 1/16” (1.6mm) minimum from housing.
(TA = 25°C unless otherwise specified)
Symbol
TOPR
TSTG
TSOL-I
TSOL-F
Rating
-55 to +100
-55 to +100
240 for 5 sec
260 for 10 sec
Unit
°C
°C
°C
°C
IF
50
mA
VR
PD
6
100
V
mW
VCEO
30
V
VECO
IC
PD
4.5
20
150
V
mA
mW
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H21A1 / H21A2 / H21A3
PHOTOTRANSISTOR
OPTICAL INTERRUPTER SWITCH
ELECTRICAL / OPTICAL CHARACTERISTICS
(TA =25°C)(All measurements made under pulse condition)
PARAMETER
TEST CONDITIONS
SYMBOL
DEVICES
MIN
TYP
MAX
UNITS
IF = 60 mA
VF
All
—
—
1.7
V
IR = 10 µA
VR = 3 V
VR
IR
All
All
6.0
—
—
—
—
1.0
V
µA
IF = 100 µA, Ee = 0
BVECO
All
6.0
—
—
V
IC = 1 mA, Ee = 0
VCE = 25 V, Ee = 0
BVCEO
ICEO
All
All
H21A1
H21A2
H21A3
H21A1
H21A2
H21A3
H21A1
H21A2
H21A3
H21A2/3
H21A1
All
All
30
—
0.15
0.30
0.60
1.0
2.0
4.0
1.9
3.0
5.5
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
8
50
—
100
—
—
—
—
—
—
—
—
—
0.40
0.40
—
—
V
nA
INPUT (EMITTER)
Forward Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
OUTPUT (SENSOR)
Emitter to Collector Breakdown
Collector to Emitter Breakdown
Collector to Emitter Leakage
COUPLED
IF = 5 mA, VCE = 5 V
On-State Collector Current
IF = 20 mA, VCE = 5 V
IC(ON)
IF = 30 mA, VCE = 5 V
Saturation Voltage
Turn-On Time
Turn-Off Time
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IF = 20 mA, IC = 1.8 mA
IF = 30 mA, IC = 1.8 mA
IF = 30 mA, VCC = 5 V, RL = 2.5 KΩ
IF = 30 mA, VCC = 5 V, RL = 2.5 KΩ
VCE(SAT)
ton
toff
2 OF 5
5/02/01
mA
V
V
µs
µs
DS300290
H21A1 / H21A2 / H21A3
PHOTOTRANSISTOR
OPTICAL INTERRUPTER SWITCH
Figure 1. Output Current vs. Input Current
ICE(on), NORMALIZED OUTPUT CURRENT
10
8
6
4
2
1
.8
.6
.4
NORMALIZED TO
I F = 20 mA
VCE = 5 V
.2
PULSED
PW = 100 µsec
PRR = 100 pps
.1
.08
.06
.04
.02
.01
1
2
4
6
8 10
20
40
60 80 100
200
400
600
1000
IF , INPUT CURRENT (mA)
Figure 2. Output Current vs. Temperature
10
8
ICE(on), NORMALIZED OUTPUT CURRENT
6
NORMALIZED TO VCE = 5 V, I F = 20 mA, TA = 25 °C
INPUT PULSED
IF = 100 mA
4
IF = 60 mA
2
IF = 30 mA
IF = 20 mA
1
.8
.6
IF = 10 mA
.4
.2
.1
IF = 5 mA
-55
-40
-20
0
20
40
60
80
100
TA , AMBIENT TEMPERATURE (°C)
Figure 3. VCE(SAT) vs. Temperature
3
VCE(SAT), NORMALIZED
2
IC
1.8 mA
=
IF
20 mA
NORMALIZED TO
IC 1.8 mA
, TA = 25°C
=
30 mA
IF
IC
3.6 mA
=
IF
60 mA
PULSED
PW = 100 µs, PRR = 100 pps
1
IC 1.8 mA
=
IF
30 mA
0.8
IC 0.9 mA
=
IF
15 mA
0.6
-50
-25
0
25
50
75
100
TA , AMBIENT TEMPERATURE (°C)
DS300290
5/02/01
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H21A1 / H21A2 / H21A3
PHOTOTRANSISTOR
OPTICAL INTERRUPTER SWITCH
Figure 4. Leakage Current vs. Temperature
DETECTOR
EMITTER
103
102
IR, NORMALIZED LEAKAGE CURRENT
ICEO, NORMALIZED DARK CURRENT
103
VCE = 25 V
VCE = 10 V
101
1
102
101
1
NORMALIZED TO
VCE = 25 V
TA = 25 °C
0.1
25
50
NORMALIZED TO
VR = 5 V
TA = 25 °C
75
0.1
100
25
T A, AMBIENT TEMPERATURE (°C)
50
75
100
T A, AMBIENT TEMPERATURE (°C)
Figure 6. Output Current vs. Distance
d, DISTANCE (mils)
Figure 5. Switching Speed vs. RL
4.5
4
PW = 300 µs
PRR = 100 pps
75
IF =
AMPS, VCC = 5V
RL
tON, AND tOFF NORMALIZED
2
ton
toff
NORMALIZED TO
RL = 2.5 KΩ
1.5
1
.9
.8
.7
RL
VCC
IF
1K
2K
3K
4K
+
5K
6K
ICE(on), NORMALIZED OUTPUT CURRENT
1.00
3
.6
.5
.45
78.7
236.2
.1
+
E
D
+
315
393.7
NORMALIZED
TO VALUE WITH
SHIELD
REMOVED
BLACK
SHIELD
.01
d
o
BLACK
SHIELD
d
.001
.0001
7K 8K 9K 10K
157.5
o
0
2
4
6
8
10
5/02/01
DS300290
d, DISTANCE (mm)
R L , LOAD RESISTANCE (Ω)
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H21A1 / H21A2 / H21A3
PHOTOTRANSISTOR
OPTICAL INTERRUPTER SWITCH
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO
ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME
ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED
HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF
OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical
implant into the body,or (b) support or sustain life,
and (c) whose failure to perform when properly
used in accordance with instructions for use provided
in labeling, can be reasonably expected to result in a
significant injury of the user.
DS300290
5/02/01
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, or to affect its safety or
effectiveness.
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