7/12/00
DB92538m-AAS/A1
1.2
3.0
4.0
3.0
3.35
7.0
6.0
0.5
0.5
7.62
1
2
4
3
0.26
13°
Max
2.54 Dimensions in mm
LOW INPUT CURRENT
PHOTOTRANSISTOR
OPTICALLY COUPLED ISOLATORS
APPROVALS
lUL recognised, File No. E91231
DESCRIPTION
The SFH615A series of optically coupled
isolators consist of 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
(40-320% at 10mA, 13% min at 1mA)
lHigh Isolation Voltage (5.3kVRMS ,7.5kVPK )
lHigh BVCEO (70V min)
lAll electrical parameters 100% tested
lCustom electrical selections available
APPLICATIONS
lComputer terminals
lIndustrial systems controllers
lMeasuring instruments
lSignal transmission between systems of
different potentials and impedances
5.08
4.08
SFH615A-1, SFH615A-2,
SFH615A-3, SFH615A-4
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
Reverse Voltage 6V
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)
OPTION G
7.62
SURFACE MOUNT
OPTION SM
10.16
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
10.46
9.86
0.6
0.1 1.25
0.75
ISOCOM INC
1024 S. Greenville Ave, Suite 240,
Allen, TX 75002 USA
Tel: (214) 495-0755 Fax: (214) 495-0901
e-mail info@isocom.com
http://www.isocom.com
7/12/00
PARAMETER MIN TYP MAX UNITS TEST CONDITION
Input Forward Voltage (VF)1.65 VIF = 50mA
Reverse Voltage (VR) 6 VIR = 10µA
Reverse Current (IR)10 µAVR = 6V
Output Collector-emitter Breakdown (BVCEO)70 VIC = 1mA
( Note 2 )
Emitter-collector Breakdown (BVECO) 6 VIE = 100µA
Collector-emitter Dark Current (ICEO)
SFH615A-1,2 50 nA VCE = 10V
SFH615A-3,4 100 nA
Coupled Current Transfer Ratio (CTR) (Note 2)
SFH615A-1 40 80 %10mA IF , 5V VCE
SFH615A-2 63 125 %
SFH615A-3 100 200 %
SFH615A-4 160 320 %
SFH615A-1 13 %1mA IF , 5V VCE
SFH615A-2 22 %
SFH615A-3 34 %
SFH615A-4 56 %
Collector-emitter Saturation Voltage VCESAT0.4 V10mA 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.
SWITCHING CHARACTERISTICS
1. Linear Operation (without saturation) Fig 1.
IF = 10mA, VCC = 5V, RL = 75Ω
ton
tr
toff
tf
FCO
UNITS
2. Switching Operation (with saturation) Fig 2
VCC = 5V, RL = 1kΩ
4.2
3.0
23
14
6.0
4.6
25
15
µs
µs
µs
µs
V
UNITS
< 0.4
GROUP
VCC = 5.0V VCC = 5.0V
RL = 75ΩRL = 1kΩ
OUTPUT OUTPUT
FIG 2
FIG 1
ton toff
10%
90% 90%
Turn-on Time
Rise Time
Turn-off Time
Fall Time
Cut-off Frequency
µs
µs
µs
µs
kHz
Turn-on Time
Rise Time
Turn-off Time
Fall Time
ton
tr
toff
tf
VCESAT
-2 and -3
(IF=10mA) - 4
(IF=5mA)
trtf
INPUT
OUTPUT
10%
-1
(IF=20mA)
3.0
2.0
18
11
3.0
2.0
2.3
2.0
250
DB92538m-AAS/A1
7/12/00
50
Ambient temperature TA ( °C )
150
0
200
Collector power dissipation P C (mW)
Collector Power Dissipation vs. Ambient Temperature
-30 0 25 50 75 100
100
0
0.5
1.0
1.5 IF = 10mA
VCE = 5V
Relative Current Transfer Ratio
vs. Ambient Temperature
Relative current transfer ratio
Collector Current vs. Collector-emitter Voltage
( normalised to SFH615A-3 )
Collector-emitter voltage VCE ( V )
Collector current I C (mA)
0 2 4 6 8 10
0
10
20
30
40
50 TA = 25°C
10
15
20
30
50
-30 0 25 50 75 100 125
-30 0 25 50 75 100
Ambient temperature TA ( °C )
Collector-emitter saturation voltage V CE(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
SFH615A-2
SFH615A-3
SFH615A-4
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 I F (mA)
SFH615A-1
DB92538m-AAS/A1
