Hutton Close, Crowther Ind Est, Washington, Tyne & Wear NE38 0AH, England
mailto:sales@isocom.uk.com - Tel: +44 (0)191 4166546 - Fax: +44 (0)191 4155055
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:
Continuous Load Current:
Load Type:
Surge Load Current:
Off-State Leakage Current, Max:
Power Dissipation:
±350V or ±400V (see Table below)
±130mA
AC/DC
300mA
1µA
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
(Vrms)
Load/
Output
Break-
down
(Vac &
Vdc)
ON
Resistance
at 25mA
(ohms)
Incremental
Resistance
above 50mA
(ohms)
Turn-off
Time
(ms)
Turn-on
Time
(ms)
Output
Term.
Capac.
(pF)
TYP
MAX
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
400
40
50
<40
0.7
1
0.8
1.5
6
1 Form A
ISX100
NO
3750
350
20
25
<20
0.8
1.5
0.3
1
4
ISX150
3750
350
20
25
<20
0.7
1.5
0.5
1
4
ISX200
3750
350
20
30
<30
0.8
1.5
0.4
1
6
ISX250
3750
400
20
30
<20
0.7
1.5
0.5
1
6
ISX300
3750
400
20
25
<20
0.6
1.5
0.5
1
4
1 Form A
ISX200S
NO
1500
350
20
30
<20
0.8
1.5
0.5
1
6
ISX250S
1500
400
20
30
<20
0.7
1.5
0.6
1
6
1 Form B
ISX350
NC
3750
400
40
50
<40
0.7
1
0.8
1.5
4
ISX400
3750
400
40
50
<40
0.6
1
0.6
1.5
6
1 Form B
ISX350S
NC
1500
400
40
50
<40
0.7
1
0.8
1.5
4
Dual
1 Form A
IST100
NO
3750
350
20
25
<20
0.8
1.5
0.3
1
4
IST150
3750
350
20
25
<20
0.7
1.5
0.5
1
4
IST150S
1500
350
20
30
<20
0.8
1.5
0.5
1
6
IST200
3750
400
20
30
<20
0.8
1.5
0.5
1
6
IST250
3750
400
20
30
<20
0.7
1.5
0.6
1
6
IST250S
1500
400
20
30
<30
0.7
1.5
0.6
1
6
Dual
1 Form B
IST300
NC
3750
400
40
50
<40
0.7
1
0.8
1.5
4
IST300S
1500
400
40
50
<40
0.7
1
0.8
1.5
6
IST350
3750
400
40
50
<40
0.6
1
0.6
1.5
6
1 Form A/B
1 Form C
IST400
NO
3750
400
20
30
0.8
1.5
0.7
1
6
NC
40
50
0.7
1
0.8
1.5
IST400S
NO
1500
400
20
30
0.8
1.5
0.7
1
6
NC
40
50
0.7
1
0.8
1.5
IST500
NO
3750
400
22
30
0.7
1.5
0.5
1
4
NC
45
50
0.5
1
0.7
1.5
Dimensions
Units: mm; Tolerance: ±0.1 mm
Package
SOP
DIL & Surface Mount
Pins
4
6
8
6
8
b
4.4
6.5
c
13 degrees
d
2.54
2.54
f
3.4
g
0.10
0.4
h
2.15
3.5
k
0.4
0.5 (DIL), 1.2 (SM)
l
4.7
6.7
9.8
7.3
9.68
s
5.49
7.62
t
0.5
1.0
v
1.2
w
6.8±0.4
10.0±0.4
x
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 File Lists to confirm old printouts are up-to-date.
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