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ISOCOM COMPONENTS LTD
Unit 25B, Park View Road West,
Park View Industrial Estate, Brenda Road
Hartlepool, Cleveland, TS25 1YD
Tel: (01429) 863609 Fax :(01429) 863581
ISOCOM INC
720 E., Park Boulevard, Suite 104,
Plano, TX 75074 USA
Tel: (972) 423-5521
Fax: (972) 422-4549
24/9/97
DB92261-AAS/A2
1mm APERTURE OPTO-ELECTRONIC SINGLE CHANNEL
SLOTTED INTERRUPTER SWITCHES WITH TRANSISTOR
SENSORS AND 450mm FLYING LEADS
ABSOLUTE MAXIMUM RATINGS
(25°C unless otherwise specified)
Storage Temperature -40°C to + 85°C
Operating Temperature -25°C to + 85°C
Lead Soldering Temperature
(1/16 inch (1.6mm) from case for 10 secs) 260°C
INPUT DIODE
Forward Current 50mA
Reverse Voltage 5V
Power Dissipation 75mW
OUTPUT TRANSISTOR
Collector-emitter Voltage BV
CEO
30V
Emitter-collector Voltage BV
ECO
5V
Collector Current I
C
20mA
Power Dissipation 75mW
ISTS823A
ISTS824A
DESCRIPTION
The ISTS823A, ISTS824A opaque
photointerrupters are single channel switches
consisting of a Gallium Arsenide infrared
emitting diode and a NPN silicon photo transistor
mounted in a polycarbonate housing with 450mm
flying leads. The package is designed to optimise
the mechanical resolution, coupling efficiency,
ambient light rejection, cost and reliability.
Operating on the principle that objects opaque to
infrared will interrupt the transmission of light
between an infrared emitting diode and a photo
sensor switching the output from an "ON" state to
an "OFF" state.
FEATURES
l High Gain
l 3mm Gap between LED and Detector
l Polycarbonate case protected against
ambient light
APPLICAT IONS
l Copiers, Printers, Facsimilies, Record
Players, Casette Decks, Optoelectronic
Switches
BLACK RED
BROWN
ORANGE
25.7
24.1
19.05
Dimensions in mm
1
2
4
3
12.7
3.0
3.3
DIAG 2
PLCS
6.6
3.3
3.0
2.8
3.3
3.0
OPTICAL
CENTRE
LINE
5.6
5.0
11.1
10.5
9.0
8.0
5.5
4.5
3.0
11.1
10.6
450
E
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DB92261-AAS/A2
PARAMETER MIN TYP MAX UNITS TEST CONDITION
Input Forward Voltage (VF) 1.2 1.7 V IF = 50mA
Reverse Voltage (VR)5VI
R
= 100µA
Reverse Current (IR) 100 µAV
R
= 5V
Output Collector-emitter Breakdown (BV
CEO
)30 V IC = 1mA
( Note 1 )
Emitter-collector Breakdown (BV
ECO
) 5 V IE = 100µA
Collector-emitter Dark Current (I
CEO
) 100 nA VCE = 15V
Coupled On-State Collector Current IC (
ON
)
( Note 1 )
ISTS823A 200 µA 20mA IF , 10V V
CE
ISTS824A 500 µA 20mA IF , 10V V
CE
Collector-emitter Saturation VoltageV
CE(SAT)
ISTS823A 0.4 V 20mA IF , 100µA I
C
ISTS824A 0.4 V 20mA IF , 250µA I
C
Turn-on Time ton 8 µsV
CC
= 5V,
Turn-off Time toff 50 µsI
F
= 30mA, RL= 2.5kΩ
24/9/97
ELECTRICAL CHARACTERISTICS ( TA= 25°C Unless otherwise noted )
Note 1 Special Selections are available on request. Please consult the factory.
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DB92261-AAS/A2
24/9/97
25
-25 0 25 50 75 100 125
Ambient temperature TA ( °C )
75
0
100
Ambient temperature TA ( °C )
Collector power dissipation P
C
(mW)
60
30
20
10
0
40
50
-25 0 25 50 75 100 125
Collector Power Dissipation vs. Ambient Temperature
Forward Current vs. Ambient Temperature
50
Forward current I
F
(mA)
0
0.5
1.0
1.5
IF = 20mA
VCE = 10V
Ambient temperature TA ( °C )
-25 0 25 50 75 100
-25 0 25 50 75 100
Ambient temperature TA ( °C )
Collector-emitter saturation voltage V
CE(SAT)
(V)
Collector-emitter Saturation
Voltage vs. Ambient Temperature
0
0.04
0.08
0.12
0.16
0.20
0.24
0.28
IF = 20mA
IC = 0.25mA
1 2 5 10 20 50
0
0.4
0.6
0.8
1.0
1.2
0.2
1.4
Normalized output current
Normalized Output Current vs.
Forward Current
Forward current IF (mA)
0.1 1 10 100
1
10
Normalized output current
Normalized Output Current vs.
Collector-emitter Voltage
Collector-emitter voltage V
CE
( V )
0.1
0.01
TA = 25°C
0.02
0.04
0.2
0.4
2
4
1.6
1.8
2.0
Normalized to
IF = 20mA
V
CE
= 5V
Pulsed
PW = 100µs
PRR = 100pps
IF = 50mA
30mA
20mA
5mA
10mA
Normalized Output Current
vs. Ambient Temperature
Normalized output current
Normalized to
IF = 20mA
V
CE
= 0.4V
Pulsed
PW = 100µs
PRR = 100pps
TA = 25°C
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