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
30/7/97 DB92307-AAS/A1
1.2
3.0
4.0
3.0
3.35
7.0
6.0
0.5
0.5
7.62
1
24
3
0.26
13°
Max
2.54 Dimensions in mm
APPROVALS
lUL recognised, File No. E91231
'X' SPECIFICATION APPROVALS
lCertified to EN60950 by the following
Test Bodies :-
Nemko - Certificate No. P96102022
Fimko - Registration No. 192313-01..25
Semko - Reference No. 9639052 01
Demko - Reference No. 305969
lVDE 0884 approval pending
DESCRIPTION
The SFH620 series of optically coupled
isolators consist of inverse parallel infrared light
emitting diodes and NPN silicon photo
transistors in space efficient dual in line plastic
packages.
FEATURES
lOptions :-
10mm lead spread - add G after part no.
Surface mount - add SM after part no.
Tape&reel - add SMT&R after part no.
lLow input current ±1mA IF
lHigh Current Transfer Ratios
lHigh Isolation Voltage (5.3kVRMS ,7.5kVPK )
lHigh BVCEO (70V min)
lAC or polarity insensitive input
lAll electrical parameters 100% tested
lCustom electrical selections available
APPLICATIONS
lComputer terminals
lIndustrial systems controllers
lMeasuring instruments
lTelephone sets, Telephone exchanges
lSignal transmission between systems of
different potentials and impedances
5.08
4.08
ABSOLUTE MAXIMUM RATINGS
(25°C unless otherwise specified)
Storage Temperature -55°C to + 125°C
Operating Temperature -55°C to + 100°C
Lead Soldering Temperature
(1/16 inch (1.6mm) from case for 10 secs) 260°C
INPUT DIODE
Forward Current ±50mA
Power Dissipation 70mW
OUTPUT TRANSISTOR
Collector-emitter Voltage BVCEO 70V
Emitter-collector Voltage BVECO 6V
Power Dissipation 150mW
POWER DISSIPATION
Total Power Dissipation 200mW
(derate linearly 2.67mW/°C above 25°C)
10.16
0.26
7.62
10.2
9.5
OPTION SM
SURFACE MOUNT OPTION G
1.4
0.9
1.2
0.6
AC INPUT PHOTOTRANSIST OR
OPTICALLY COUPLED ISOLA T ORS
SFH620-1X, SFH620-2X, SFH620-3X
SFH620-1, SFH620-2, SFH620-3
DB92307-AAS/A1
30/7/97
PARAMETER MIN TYP MAX UNITS TEST CONDITION
Input Forward Voltage (VF) 1.65 V IF = ±50mA
Output Collector-emitter Breakdown (BVCEO)70 V I
C
= 1mA
( Note 2 )
Emitter-collector Breakdown (BVECO) 6 V I
E
= 100µA
Collector-emitter Dark Current (ICEO)
SFH620-1,2 50 nA VCE = 10V
SFH620-3 100 nA
Coupled Current Transfer Ratio (CTR) (Note 2)
SFH620-1 40 12 5 % ±10mA IF , 5V VCE
SFH620-2 63 200 %
SFH620-3 100 320 %
SFH620-1 13 % ±1mA IF , 5V VCE
SFH620-2 22 %
SFH620-3 34 %
Collector-emitter Saturation Voltage VCESAT 0.4 V ±10mA IF , 2.5mA IC
Input to Output Isolation Voltage VISO 5300 VRMS See note 1
7500 VPK See note 1
Input-output Isolation Resistance RISO 5x1010 ΩVIO = 500V (note 1)
ELECTRICAL CHARACTERISTICS ( TA = 25°C Unless otherwise noted )
Note 1 Measured with input leads shorted together and output leads shorted together.
Note 2 Special Selections are available on request. Please consult the factory.
1. Linear Operation (without saturation) Fig 1.
IF = 10mA, V CC = 5V, RL = 75Ω, TA = 25°C
ton
tr
toff
tf
FCO
UNITS
Turn-on Time
Rise Time
Turn-off Time
Fall Time
Cut-off Frequency
µs
µs
µs
µs
kHz
3.0
2.0
2.3
2.0
250
SWITCHING CHARACTERISTICS
Output
Output
Input
10%
90% 90%
10%
ton
tr
FIG 1
toff
tf
RL = 75Ω
VCC
DB92307-AAS/A1
30/7/97
50
Ambient temperature TA ( °C )
150
0
200
Collector power dissipation PC (mW)
Collector Power Dissipation vs. Ambient Temperature
-30 0 25 50 75 100
100
0
0.5
1.0
1.5
Relative Current Transfer Ratio
vs. Ambient Temperature
Relative current transfer ratio
Collector Current vs. Collector-emitter Voltage
( normalized to SFH620-2 & SFH620-3 )
Collector-emitter voltage VCE ( V )
Collector current IC (mA)
0 2 4 6 8 10
0
10
20
30
40
50 TA = 25°C
-30 0 25 50 75 100 125
-30 0 25 50 75 100
Ambient temperature TA ( °C )
Collector-emitter saturation voltage VCE(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 = ± 10mA
IC = 2.5mA
Ambient temperature TA ( °C )
IF = ±5mA
0
80
120
160
200
240
40
280
320
Forward current IF (±mA)
Current Transfer Ratio vs. Forward Current
Current transfer ratio CTR (%)
VCE = 5V
TA = 25°C
1 2 5 10 20 50
SFH620-2
SFH620-3
Ambient temperature TA ( °C )
60
30
20
10
0
40
50
-30 0 25 50 75 100 125
Forward Current vs. Ambient Temperature
Forward current IF (±mA)
SFH620-1
±10
±15
±20
±30
±50
IF = ±10mA
VCE = 5V
