The SFH618A (DIP) and SFH6186 (SMD) feature a
high current transfer ratio, low coupling capacitance
and high isolation voltage. These couplers have a
GaAs infrared diode emitter, which is optically coupled to silicon planar phototransistor detector, and is
incorporated in a plastic DIP-4 or SMD package.
The coupling devices are designed for signal transmission between two electrically separated circuits.
The couplers are end-stackable with 2.54 mm lead
spacing.
Creepage and clearance distances of > 8.0 mm
achieved with option 6. This version complies with
IEC 60950 (DIN VDE 0805) for reinforced insulation
to an operation voltage of 400 V
RMS
or DC.
Order Information
PartRemarks
SFH618A-2CTR 63 - 125 %, DIP-4
SFH618A-3CTR 100 - 200 %, DIP-4
SFH618A-4CTR 160 - 320 %, DIP-4
SFH618A-5CTR 250 - 500 %, DIP-4
SFH6186-2CTR 63 - 125 %, SMD-4
SFH6186-3CTR 100 - 200 %, SMD-4
SFH6186-4CTR 160 - 320 %, SMD-4
SFH6186-5CTR 250 - 500 %, SMD-4
SFH618A-3X006CTR 100 - 200 %, DIP-4 400 mil (option 6)
SFH618A-3X007CTR 100 - 200 %, SMD-4 (option 7)
SFH618A-4X006CTR 160 - 320 %, DIP-4 400 mil (option 6)
SFH618A-5X006CTR 250 - 500 %, DIP-4 400 mil (option 6)
SFH618A-5X007CTR 250 - 500 %, SMD-4 (option 7)
For additional information on the available options refer to
Option Information.
Document Number 83673
Rev. 1.6, 26-Oct-04
www.vishay.com
1
SFH618A / SFH6186
VISHAY
Vishay Semiconductors
Absolute Maximum Ratings
T
= 25 °C, unless otherwise specified
amb
Stresses in excess of the absolute Maximum Ratings can cause permanent damage to the device. Functional operation of the device is
not implied at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute
Maximum Rating for extended periods of the time can adversely affect reliability.
Input
ParameterTest conditionSymbolVal ueUnit
Reverse voltageV
Power dissipationP
R
diss
6.0V
70mW
Output
ParameterTest conditionSymbolVal ueUnit
Collector-emitter voltageV
Emitter-collector voltageV
Collector currentI
t
≤ 1.0 msI
p
Power dissipationP
CE
EC
C
C
diss
55V
7.0V
50mA
100mA
150mW
Coupler
ParameterTest conditionSymbolVal ueUnit
Isolation test voltage between
emitter and detector, refer to
Climate DIN 40046, part2,
Nov.74
Creepage distance≥ 7.0mm
Clearance≥ 7.0mm
Insulation thickness between
emitter and detector
Comparative tracking index per
DIN IEC 112/VDEO 303, part 1
Isolation resistanceV
Storage temperature rangeT
Ambient temperature rangeT
Junction temperatureT
Soldering temperaturemax. 10 s. Dip Soldering
= 500 V, T
IO
V
= 500 V, T
IO
distance to seating plane
≥ 1.5 mm
= 25 °CR
amb
= 100 °CR
amb
V
T
ISO
IO
IO
stg
amb
j
sld
5300V
≥ 0.4mm
175
12
≥ 10
11
≥ 10
- 55 to +150°C
- 55 to +100°C
100°C
260°C
RMS
Ω
Ω
www.vishay.com
2
Document Number 83673
Rev. 1.6, 26-Oct-04
VISHAY
200
150
100
SFH618A / SFH6186
Vishay Semiconductors
Figure 1. Permissible Power Dissipation vs. Ambient Temperature
Phototransistor
50
tot
P –Power Dissipation (mW)
0
18485
Diode
0255075100125150
Tm – Ambient Temperature ( qC )
Electrical Characteristics
T
= 25 °C, unless otherwise specified
amb
Minimum and maximum values are testing requirements. Typical values are characteristics of the device and are the result of engineering
evaluation. Typical values are for information only and are not part of the testing requirements.
Input
ParameterTest conditionSymbolMinTy p.MaxUnit
Forward voltageI
Reverse currentV
CapacitanceV
= 5.0 mAV
F
= 6.0 VI
R
= 0 V, f = 1.0 MHzC
R
Thermal resistanceR
F
R
O
thja
1.11.5V
.0110µA
25pF
1070K/W
Output
ParameterTest conditionSymbolMinTy p.MaxUnit
Collector-emitter leakage
= 10 VI
V
CE
current
Collector-emitter capacitanceV
= 5.0 V, f = 1.0 MHzC
CE
Thermal resistanceR
CEO
CE
thja
10200nA
7pF
500K/W
Coupler
ParameterTest conditionPartSymbolMinTy p.MaxUnit
Collector-emitter saturation
voltage
Coupling capacitanceC
Document Number 83673
Rev. 1.6, 26-Oct-04
= 0.32 mA, IF = 1.0 mASFH618A-2
I
C
= 0.5 mA, IF = 1.0 mASFH618A-3
I
C
= 1.25 mA, IF = 1.0 mASFH618A-4
I
C
SFH6186-2
SFH6186-3
SFH6186-4
= 0.8 mA, IF = 1.0 mASFH618A-5
I
C
SFH6186-5
V
V
V
V
CEsat
CEsat
CEsat
CEsat
C
0.250.4V
0.250.4V
0.250.4V
0.250.4V
0.25pF
www.vishay.com
3
SFH618A / SFH6186
isfh618a_12
10%
90%
Input Pulse
Output Pulse
t
r
t
on
t
f
t
off
Vishay Semiconductors
Current Transfer Ratio
ParameterTest conditionPa r tSymbolMinTy p.MaxUnit
I
C/IF
Switching Characteristics
Typical
ParameterTest conditionSymbolMinTy p.MaxUnit
Turn-on timeV
Rise timeV
Turn-off timeV
Fall timeV
IF = 1.0 mA, VCE = 0.5 VSFH618A-2
= 0.5 mA, VCE = 1.5 VSFH618A-2
I
F
= 1.0 mA, VCE = 0.5 VSFH618A-3
I
F
= 0.5 mA, VCE = 1.5 VSFH618A-3
I
F
= 1.0 mA, VCE = 0.5 VSFH618A-4
I
F
= 0.5 mA, VCE = 1.5 VSFH618A-4
I
F
= 1.0 mA, VCE = 0.5 VSFH618A-5
I
F
= 0.5 mA, VCE = 1.5 VSFH618A-5
I
F
= 5.0 V, IC = 2.0 mA,
CC
= 100 Ω
R
L
= 5.0 V, IC = 2.0 mA,
CC
= 100 Ω
R
L
= 5.0 V, IC = 2.0 mA,
CC
= 100 Ω
R
L
= 5.0 V, IC = 2.0 mA,
CC
= 100 Ω
R
L
SFH6186-2
SFH6186-2
SFH6186-3
SFH6186-3
SFH6186-4
SFH6186-4
SFH6186-5
SFH6186-5
t
on
t
r
t
off
t
f
VISHAY
CTR63125%
CTR3275%
CTR100200%
CTR50120%
CTR160320%
CTR80200%
CTR250500%
CTR125300%
6.0µs
3.5µs
5.5µs
5.0µs
INPUT
isfh618a_10
www.vishay.com
4
VCC=5V
R
L
V
OUT
Figure 2. Test Circuit
Figure 3. Test Circuit and Waveforms
Document Number 83673
Rev. 1.6, 26-Oct-04
VISHAY
SFH618A / SFH6186
Vishay Semiconductors
Typical Characteristics (Tamb = 25 °C unless otherwise specified)
isfh618a_01
VCE= 0.5 V, CTR=f(TA)
Figure 4. Current Transfer Ratio (typ.)
VCE=0.5V,CTR=f(TA)
isfh618a_04
IF= 1.0 mA, VF=f(TA)
Figure 7. Diode Forward Voltage (typ.)
TA= 25°C, f = 1.0 MHz,
CEE=f(VCE)
isfh618a_02
isfh618a_03
isfh618a_01
Figure 5. Current Transfer Ratio (typ.)
TA= 25°C, VF=f(IF)
Figure 6. Diode Forward Voltage (typ.)
isfh618a_05
isfh618a_06
Figure 8. Transistor Capacitance
TA= 25°C,
CE=f
(VCE,IF)
Figure 9. Output Characteristics
Document Number 83673
Rev. 1.6, 26-Oct-04
www.vishay.com
5
SFH618A / SFH6186
Vishay Semiconductors
IF=f(TA)
TA= 25°C, IF= 1.0 mA,
VCC= 5.0 V, tON,tR,
t
,=f(RL)
OFF,tF
VISHAY
isfh618a_07
Figure 10. Permissible Forward Current Diode
Package Dimensions in Inches (mm)
2
1
pin one ID
.255 (6.48)
.268 (6.81)
3
4
.179 (4.55)
.190 (4.83)
.031 (.79) typ.
.050 (1.27) typ.
.130 (3.30)
.150 (3.81)
.020 (.508 )
.035 (.89)
.050 (1.27)
.100 (2.54)
i178027
.030 (.76)
.045 (1.14)
4°
typ.
.018 (.46)
.022 (.56)
isfh618a_09
ISO Method A
.300 (7.62) typ.
10°
3°–9°
.008 (.20)
.012 (.30)
Figure 11. Switching times (typ.)
.230 (5.84)
.250 (6.35)
.110 (2.79)
.130 (3.30)
www.vishay.com
6
Document Number 83673
Rev. 1.6, 26-Oct-04
VISHAY
Package Dimensions in Inches (mm)
SFH618A / SFH6186
Vishay Semiconductors
ISO Method A
i178029
18487
SMD
.255 (6.48)
.268 (6.81)
.030 (.76)
.045 (1.14)
4° typ.
1.00 (2.54)typ.
.050 (1.27)
typ.
34
.179 (4.55)
.190 (4.83)
Option 6
.407 (10.36)
.391 (9.96)
.307 (7.8)
.291 (7.4)
.014 (0.35)
.010 (0.25)
.400 (10.16)
.430 (10.92)
pin one ID
.031 (.79)
typ.
.130 (3.30)
.150 (3.81)
.0098 (.249)
.035 (.102)
Lead
coplanarity
.004 max.
.100 (2.54)
.028 (0.7)
MIN.
R .010 (.25)
.315 (8.00) mi
.435 (11.05)
.375 (9.52)
.305 (10.03)
.296 (7.52)
.312 (7.90)
°
10
.315 (8.00)
min.
.020 (.508)
.040 (1.02)
Option 7
.300 (7.62)
TYP.
.315 (8.0)
MIN.
.331 (8.4)
MIN.
.406 (10.3)
MAX.
n
.180 (4.6)
.160 (4.1)
.030 (.76)
.070 (1.78)
.060 (1.52)
.010 (.25)
typ.
3°–7°
Document Number 83673
Rev. 1.6, 26-Oct-04
www.vishay.com
7
SFH618A / SFH6186
VISHAY
Vishay Semiconductors
Ozone Depleting Substances Policy Statement
It is the policy of Vishay Semiconductor GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and
operatingsystems with respect to their impact on the health and safety of our employees and the public, as
well as their impact on the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are
known as ozone depleting substances (ODSs).
The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs
and forbid their use within the next ten years. Various national and international initiatives are pressing for an
earlier ban on these substances.
Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use
of ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments
respectively
2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency (EPA) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively.
Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting
substances and do not contain such substances.
We reserve the right to make changes to improve technical design
and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each
customer application by the customer. Should the buyer use Vishay Semiconductors products for any
unintended or unauthorized application, the buyer shall indemnify Vishay Semiconductors against all
claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal
damage, injury or death associated with such unintended or unauthorized use.