IS204X,ISD204X,ISQ204X3,2,1
IS204,ISD204,ISQ204-3,-2,-1

LOW INPUT CURRENTPHOTOTRANSISTOR OPTICALLYCOUPLED ISOLATORSAPPROVALSl
UL recognised, File No. E91231'X' SPECIFICATION APPROVALSl
VDE 0884 in 3 available lead forms : - STD- G form- SMD approved to CECC 00802
lIS204X is certified to EN60950 by thefollowing Test Bodies :Nemko - Certificate No. P01102464
Fimko - Certificate No. FI18166
Semko - Reference No. 0202037/01-22
Demko - Certificate No. 311158-01l
BSI approved - Cetificate No. 8001
DESCRIPTION
The IS204-3,-2,-1, ISD204-3,-2,-1, ISQ204-3,2,-1 series of optically coupled isolators consistof infrared light emitting diodes and NPN
silicon photo transistors in space efficient dual
in line plastic packages.
FEATURESl
Options :10mm lead spread - add G after part no.
Surface mount - add SM after part no.
Tape&reel - add SMT&R after part no.
l
Low input current 0.5mA IFl
High Current Transfer Ratio (50% min)lHigh Isolation Voltage (5.3kVRMS ,7.5kVPK )lHigh BVCEO (70V min)APPLICATIONS
Computer terminalslIndustrial systems controllerslSignal transmission between systems ofdifferent potentials and impedances

IS204X3,2,1
IS204-3,-2,-1

7.0
6.0

OPTION SMSURFACE MOUNT

7.62

7.62
6.62

10.46
9.86

1.25
0.75

65

34

7.62
4.0
3.0

3.0
0.26

3.35

0.5

ISD204X3,2,1
ISD204-3,2,1

2.54

7.0
6.0

182
3

765

4

1.2
10.16
9.16

7.62
4.0
3.0
13°
Max

0.5
3.0
0.5

0.26

3.35

ISQ204X3,2,1
ISQ204-3,2,1
2.54

7.0
6.0

11621531441351261171098

1.2

7.62
4.0
3.013°
Max

0.5

0.26
10.16

13°
Max0.5

20.32
19.32
0.6
0.1

121.2lOPTION GDimensions in mm

2.54

3.0

0.5 3.35

0.26

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
7/2/03

DB92237m-AAS/A4

ABSOLUTE MAXIMUM RATINGS(25°C unless otherwise specified)
Storage Temperature-40°C to + 125°C
Operating Temperature-25°C to + 100°C
Lead Soldering Temperature(1/16 inch (1.6mm) from case for 10 secs) 260°C
INPUT DIODE
Forward Current
Reverse Voltage
Power Dissipation

50mA
6V
70mW

OUTPUT TRANSISTOR
Collector-emitter Voltage BVCEO
Emitter-collector Voltage BVECO
Power Dissipation

70V
6V
150mW

POWER DISSIPATION
Total Power Dissipation
170mW(derate linearly 2.67mW/°C above 25°C)
ELECTRICAL CHARACTERISTICS ( TA= 25°C Unless otherwise noted )PARAMETER
Input

MIN TYP MAX UNITS

Forward Voltage (VF)

1.2

Reverse Current (IR)OutputCoupledCollector-emitter Breakdown (BVCEO)( Note 2 )Emitter-collector Breakdown (BVECO)
Collector-emitter Dark Current (ICEO)
Current Transfer Ratio (CTR) (Note 2)
IS204-3, ISD204-3, ISQ204-3
IS204-2, ISD204-2, ISQ204-2
IS204-1, ISD204-1, ISQ204-1

7/2/03V

IF = 20mA

10µA

VR = 4V

V

IC = 1mA

V
nA

IE = 100µA
VCE = 20V%%%%0.5mA IF , 0.4V VCE
1.0mA IF , 0.4V VCE
0.5mA IF , 0.4V VCE
1.0mA IF , 0.4V VCE

VV
V
VRMS
VPK

0.5mA IF , 0.35mA IC
0.5mA IF , 0.25mA IC
1.0mA IF , 0.5mA ICSee note 1See note 1Ωµsµs

VIO = 500V (note 1)
VCE = 2V ,IC = 0.2mA,RL= 100Ω

6100

701005050

Input-output Isolation Resistance RISO 5x1010
Output Rise Time tr4
Output Fall Time tf
3

Note 1
Note 2

1.4

70Collector-emitter SaturationVoltage -3-2-1
Input to Output Isolation Voltage VISO 5300
7500

TEST CONDITION

0.40.40.4

1818

Measured with input leads shorted together and output leads shorted together.
Special Selections are available on request. Please consult the factory.

DB92237m-AAS/A4

Collector Power Dissipation vs. Ambient Temperature

Collector Current vs. Low
Collector-emitter Voltage
TA = 25°C

2.0Collector current IC (mA)

Collector power dissipation PC (mW)

200

150

100

5001.6
IF = 1mA
1.20.8IF = 0.5mA
0.40-3002550

75

1000125

0.2

0.4

0.6

0.8

Ambient temperature TA ( °C )Collector-emitter voltage VCE ( V )Forward Current vs. Ambient Temperature

Relative Current Transfer Ratio
vs. Ambient Temperature

1.060
Relative current transfer ratio

Forward current IF (mA)

5040302010002550751000.50255075100

Ambient temperature TA ( °C )Ambient temperature TA ( °C )Collector-emitter Saturation
Voltage vs. Ambient Temperature

Current Transfer Ratio vs. Forward Current

0.28

1200.24

IF = 1mA
IC = 0.5mA

0.20
0.16
0.12
0.08
0.04

100806040
VCE = 0.4V
TA = 25°C

2000-300255075

Ambient temperature TA ( °C )7/2/03

IF = 1mA
VCE = 0.4V

1.00-30125Current transfer ratio CTR (%)

Collector-emitter saturation voltage VCE(SAT) (V)

-30

1.5

100

0.1

0.2

0.5

125

Forward current IF (mA)
DB92237m-AAS/A4