Hutton Close, Crowther Ind Est, Washington, Tyne & Wear NE38 0AH, England
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Features
Description
Absolute Maximum Ratings
Dimensions
Similar Optocouplers
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ISR/IST/ISX 100-500 A/S
High Voltage Photo EDMOS Relays
Features
Normally Closed, Normally Open, or Normally Closed and Open Circuits with Single Pole Single Throw
Control 350 or 400 Vac or Vdc
Switch 130 mA Loads
LED Control Current 2 mA
Low ON-Resistance
dv/dt >500 V/ms
Isolation Test Voltage 1500 or 3750 Vrms(ac)
UL, CSA, FCC Compatible
Description
The coupler consists of an AlGaAs LED that is optically coupled to a dielectrically isolated photodiode array
which drives two series connected high voltage MOS transistors. The typical ON-Resistances (see table) of
20 or 40 ohms at 25mA are linear up to 50 mA; the incremental resistance drops to less than 20 to 40 ohms
beyond 50 mA while reducing internal power dissipation at high load currents.
Applications
Telecommuncations - Telecom Switching; Tip/Ring Circuits; Modem Switching (Laptop, Notebook, Pocket
Size); Hookswitch; Dial Pulsing; Ground Start; Ringer Injection
Instrumentation - Multiplexers; Data Acquisition; Electronic Switching; I/O Subsystems; Meters (Watt-Hour,
Water, Gas); Medical Equipment
Miscellaneous - High Voltage Test Equipment; Triac Driver; Motor Control; Security; Aerospace; Industrial
Controls
Absolute Maximum Ratings: (Ta=25°C)
Isolation Test Voltage:
Isolation Resistance:
Total Power Dissipation:
Storage Temperature:
Operating Temperature:
Junction Temperature:
Lead Soldering:
1500 or 3750 Vrms (see Table below)
>= 10 Gohm (Vio=500V,Ta=25°C)
550mW (derate 2.5mW/°C linearly from 25°C)
-40°C to +150°C
-40°C to +85°C
100°C
260°C for 10s, 2mm from case
Input Emitter
Reverse Voltage:
Operation Input Current:
Continuous Forward Current:
Peak Forward Current (1s):
Recovery Input Current:
Forward Voltage:
Power Dissipation:
Derate Linearly above 25°C:
5.0V
5mA
5mA-50mA
1A
0.2mA (ISX200S, ISX250S: 0.4mA)
2.0V (ISX200S, ISX250S: 1.8V)
100mW
1.3mW/°C (ISR100S: 3mW/°C)
Output Detector
Output Breakdown Voltage:
±350V or ±400V (see Table below)
Continuous Load Current:
±130mA
Load Type:
AC/DC
Surge Load Current:
300mA
Off-State Leakage Current, Max: 1µA
Power Dissipation:
500mW
Particular Characteristics
Part Name: Parts ending 'S' are SOP (Small Package); other parts add 'A' for Surface Mount
Abbreviations: NO - Normally Open; NC - Normally Closed
Circuit
Diagram
Form
Part
Name
NO
NC
Isolation Load/
(Vrms) Output
Break-
down
(Vac &
Vdc)
ON
Resistance
at 25mA
(ohms)
TYP MAX
Incremental Turn-off
Resistance Time
above 50mA (ms)
(ohms)
Turn-on
Time
(ms)
Output
Term.
Capac.
(pF)
TYP MAX TYP MAX
1 Form A
ISR100S
NO 1500
400
20 30
<20
0.7 1.5 0.5 1
6
1 Form B
ISR150S
NC 1500
ISX100
3750
3750
NO 3750
3750
3750
NO
NC
1500
1500
3750
3750
400
350
350
350
400
400
350
400
400
400
400
350
350
350
400
400
400
400
400
400
400
400
400
40 50
20 25
20 25
20 30
20 30
20 25
20 30
20 30
40 50
40 50
40 50
20 25
20 25
20 30
20 30
20 30
20 30
40 50
40 50
40 50
20 30
40 50
20 30
40 50
22 30
45 50
<40
<20
<20
<30
<20
<20
<20
<20
<40
<40
<40
<20
<20
<20
<20
<20
<30
<40
<40
<40
0.7 1
0.8 1.5 6
4
4
6
6
4
6
6
0.8 1.5 0.3 1
0.7 1.5 0.5 1
0.8 1.5 0.4 1
0.7 1.5 0.5 1
0.6 1.5 0.5 1
0.8 1.5 0.5 1
0.7 1.5 0.6 1
0.7 1
0.6 1
0.7 1
1 Form A
ISX150
ISX200
ISX250
ISX300
1 Form A
ISX200S
ISX250S
ISX350
ISX400
1 Form B
0.8 1.5 4
0.6 1.5 6
0.8 1.5 4
4
4
6
6
6
6
1 Form B
ISX350S
NC 1500
IST100
3750
3750
NO
1500
3750
3750
1500
3750
0.8 1.5 0.3 1
0.7 1.5 0.5 1
0.8 1.5 0.5 1
0.8 1.5 0.5 1
0.7 1.5 0.6 1
0.7 1.5 0.6 1
0.7 1
0.7 1
0.6 1
0.7 1
0.7 1
0.5 1
Dual
1 Form A
IST150
IST150S
IST200
IST250
IST250S
Dual
1 Form B
IST300
0.8 1.5 4
0.8 1.5 6
0.6 1.5 6
0.8 1.5
0.8 1.5
0.7 1.5
6
6
4
IST300S
NC 1500
IST350
IST400
1 Form A/B
1 Form C
3750
NO
NC
NO
NC
NO
NC
3750
1500
3750
0.8 1.5 0.7 1
0.8 1.5 0.7 1
0.7 1.5 0.5 1
IST400S
IST500
Dimensions
Units: mm; Tolerance: ±0.1 mm
Package SOP
Pins
b
c
d
f
g
h
k
l
s
t
v
w
x
0.10
2.15
0.4
5.49
0.5
1.2
6.8±0.4
2.54
4
4.4
6
8
DIL & Surface Mount
6
6.5
13 degrees
2.54
3.4
0.4
3.5
0.5 (DIL), 1.2 (SM)
9.68
7.62
1.0
10.0±0.4
8
4.7 6.7 9.8 7.3
0.15±0.03 0.254±0.05
Isocom takes great effort to ensure accurate data, but regrettably cannot be held liable for any error on its
website. Visit
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to confirm old printouts are up-to-date.
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