SPEC NO: DSAD1556 REV NO: V.7 DATE: FEB/13/2007 PAGE: 1 OF 9
APPROVED: J. Lu CHECKED: Tracy Deng DRAWN: Y.L.LI ERP: 1205000028
PHOTOCOUPLER
GENERAL PURPOSE
HIGH ISOLATION VOLTAGE
SINGLE TRANSISTOR TYPE
PHOTOCOUPLER SERIES
FEATURES
1.Lead forming (gull wing) type, for surface mounting.
2.High isolation voltage between input and output (Viso=5000 Vrms).
3.Compact dual-in-line package
KB847-B: 4-channel type.
4.Recognized by UL and CUL, file NO.E225308.
5.Approved by VDE 0884 Teil2(NO:40006364)
(Creepage distance between input and output:7mm or more).
6.RoHS Compliant.
DESCRIPTION
1.The KB847-B (4-channel) is optically coupled isolators containing a GaAS light emitting diode
and an NPN silicon phototransistor.
2.The lead pitch is 2.54mm.
3.Solid insulation thickness between emitting diode and output phototransistor:>=0.6mm.
APPLICATIONS
1.Computer terminals.
2.Registers,copiers,automatic vending machines.
3.System appliances, measuring instruments.
4.Programmable logic controller.
5.Signal transmission between circuits of different potentials and impedances.
Part Number: KB847-B
SPEC NO: DSAD1556 REV NO: V.7 DATE: FEB/13/2007 PAGE: 2 OF 9
APPROVED: J. Lu CHECKED: Tracy Deng DRAWN: Y.L.LI ERP: 1205000028
PHOTOCOUPLER
*Absolute Maximum Ratings (Ta=25°C)
Parameter Symbol Rating Unit
Input
Forward current I
F
50 mA
Reverse voltage V
R
6V
Power dissipation P 70 mW
Output
Collector-emitter voltage V
CEO
35 V
Emitter-collector voltage V
ECO
6V
Collector current I
C
50 mA
Collector power dissipation P
C
150 mW
Total power dissipation Ptot 200 mW
*1
Isolation voltage Viso 5000 Vrms
Operating temperature Topr -30~+100 °C
Storage temperature Tstg -55~+125 °C
*2
Soldering temperature Tsol 260 °C
*1 40 to 60% RH,AC for 1 minute.
*2 For 10 seconds.
*PACKAGE DIMENSIONS (UNIT:mm)
Lead Bending Type TOLERANCE : ±0.5[±0.02] UNLESS OTHERWISE NOTED.
KB847-B
SPEC NO: DSAD1556 REV NO: V.7 DATE: FEB/13/2007 PAGE: 3 OF 9
APPROVED: J. Lu CHECKED: Tracy Deng DRAWN: Y.L.LI ERP: 1205000028
PHOTOCOUPLER
*Electro-optical Characteristics
Parameter Symbol Conditions Min. Typ. Max. Unit
Input
Forward voltage V
F
I
F
=20mA ___ 1.2 1.4 V
Peak forward voltage V
FM
I
FM
=0.5A ___ ___ 3.0 V
Reverse current I
R
V
R
=4V ___ ___ 10 µA
Output Collector dark current I
CEO
V
CE
=20V,I
F
=0mA ___ ___ 10
-7
nA
Transfer
charact-
eristics
*1
Current transfer ratio CTR I
F
=5mA,V
CE
=5V 50 ___ 600 %
Collector-emitter saturation voltage V
CE(
sat
)I
F
=20mA, I
C
=1mA ___ 0.1 0.2 V
Cut-off frequency f
c
V
CE
=5V, I
C
=2mA
R
L
=100Ω,-3dB ___ 80 ___ KHz
Response time Rise time
t
r
V
CE
=2V, I
C
=2mA
R
L
=100Ω
___ 4 18 µs
Fall time t
f
___ 3 18 µs
X 100%
Classification table of current transfer ratio is shown below.
CTR=
F
I
Ic
Model No. Rank mark CTR(%)
KB847L-B L 50 to 100
KB847A-B A 80 to 160
KB847B-B B 130 to 260
KB847C-B C 200 to 400
KB847D-B D 300 to 600
KB847AB-B A or B 80 to 260
KB847BC-B B or C 130 to 400
KB847CD-B C or D 200 to 600
KB847AC-B A,B or C 80 to 400
KB847BD-B B,C or D 130 to 600
KB847AD-B A,B,C or D 80 to 600
KB847-B L,A,B,C,D or No mark 50 to 600
A
KB847-B
SPEC NO: DSAD1556 REV NO: V.7 DATE: FEB/13/2007 PAGE: 4 OF 9
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PHOTOCOUPLER
Fig. 3 Collector Current vs.
Collector-emitter Voltage Fig. 4 Relative Current Transfer Ratio
vs. Ambient Temperature
Fig. 1 Current Transfer Ratio vs.
Forward Current Fig. 2 Forward Current vs.
Forward voltage
Fig. 5 Collector-emitter Saturation
Voltage vs. Ambient Temperature Fig. 6 Collector Dark Current vs.
Ambient Temperature
KB847-B
SPEC NO: DSAD1556 REV NO: V.7 DATE: FEB/13/2007 PAGE: 5 OF 9
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PHOTOCOUPLER
μ
Ω
Fig. 10 Frequency Response Test Circuit for Frequency Response
Ω
Ω
Ω
Fig. 9 Response Time vs.
Load Resistance
Fig. 7 Forward Current vs.
Ambient Temperature Fig. 8 Collector Power Dissipation vs.
Ambient Temperature
Test Circuit for Response Time
KB847-B
SPEC NO: DSAD1556 REV NO: V.7 DATE: FEB/13/2007 PAGE: 6 OF 9
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PHOTOCOUPLER
Fig. 11 Collector-emitter Saturation
Voltage vs. Forward Current
*NOTES ON HANDLING
1.Recommended soldering conditions (Dip soldering)
(1) Dip soldering
Temperature 260°C or below (molten solder temperature)
Time Less than 10 seconds.
Cycle One cycle allowed to be dipped in solder including plastic mold portion.
Flux Rosin flux containing small amount of chorine
(The flux with a maximum chlorine content of 0.2 Wt % is recommended.)
(2) Cautions
Fluxes
Avovid removing the residual flux with freon-based and chlorine-based cleaning solvent.
2.Cautions regarding noise
Be aware that power is suddenly into the componment any surge current may cause damage happen,
even if the voltage is within the absolute maximum ratings.
SPEC NO: DSAD1556 REV NO: V.7 DATE: FEB/13/2007 PAGE: 7 OF 9
APPROVED: J. Lu CHECKED: Tracy Deng DRAWN: Y.L.LI ERP: 1205000028
PHOTOCOUPLER
NOTES ON HANDLING
1.Recommended soldering conditions
(1).Infrared reflow soldering
Peak reflow temperature 235°C or below (package surface temperature)
Time of temperature higher than 210°C 30 seconds or less
Number or reflows Three
Flux Rosin flux containing small amount of chlorine (The
flux with a maximum chlorine content of 0.2Wt% is
recommended.)
CAUTION
Within this device there exists GaAs (Gallium Arsenide) material which is a harmful substance if in-
gested.
GaAs dust and fumes are toxic. Do not break, cut or pulverize the product, or use chemicals to dis-
solve them.
document, please confirm that this is the latest version. Not all devices / types available
The information in this document is subject to change without notice. Before using this
specified operating ranges as set forth in the most recent products specifications.
In developing your designs, please ensure that KINGBRIGHT products are used within
KINGBRIGHT product could cause loss of human life, bodily injury or damage to property.
stress. It is the responsibility of the buyer, when utilizing KINGBRIGHT products, to observe
standards of safety, and to a avoid situations in which a malfunction or failure of a
malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
We are mention about our product quality stablity, semiconductor devices in general can
in every country.
RESTRICTIONS ON PRODUCT USE
KB847-B
SPEC NO: DSAD1556 REV NO: V.7 DATE: FEB/13/2007 PAGE: 8 OF 9
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PHOTOCOUPLER
Dimension of Tube Unit:mm
TOLERANCE : ± 0.4[± 0.012] UNLESS OTHERWISE NOTED.
Dimension of Carton
Part Number Package Packing Style
KB847-B 16-pin DIP 25pcs / each tube
KB847-B
SPEC NO: DSAD1556 REV NO: V.7 DATE: FEB/13/2007 PAGE: 9 OF 9
APPROVED: J. Lu CHECKED: Tracy Deng DRAWN: Y.L.LI ERP: 1205000028
PHOTOCOUPLER
PACKING & LABEL SPECIFICATIONS
KB847-B
