ISOCOM LTD: BSI9000 and CECC20000 Approved Manufacturer

Hutton Close, Crowther Ind Est, Washington, Tyne & Wear NE38 0AH, England
Email: enquiry@isocomoptocouplers.com - Tel: +44 (0)191 4166546 - Fax: +44 (0)191 4155055

Features
Description
Absolute Maximum Ratings
Dimensions

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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



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