K2010 Series
6PIN PHOTOTRANSISTOR
PHOTOCOUPLER
cosmo


Description
Schematic
The K2010 series consist of an infrared emitting
diode, optically coupled to a phototransistor detector.
1
6
2
5
3
4
They are packaged in a 6-pin DIP package and available
in wide-lead spacing and SMD option.
1. Anode
2. Cathode
3. NC
4. Emitter
5. Collector
6. Base

Features
1. Current transfer ratio
( CTR：Min. 60% at IF=2mA VCE=5V )
2. High isolation voltage between input and output
( Viso：5000Vrms )
3. Pb free and RoHS compliant
4. MSL class 1
5. Agency Approvals
• UL Approved (No. E169586): UL1577
• c-UL Approved (No. E169586)
• VDE Approved (No. 101347): DIN EN60747-5-5
• FIMKO Approved: EN60065, EN60950, EN60335
• SEMKO Approved: EN60065, EN60950, EN60335

Applications
• Registers, copies, automatic vending machines
• System appliances, measuring instruments
• Computer terminals, programmable controllers
• Communications, telephone, etc
• Electric home appliances, such as oil fan heaters, microwave oven, washer, refrigerator, air conditioner
• Medical instruments, physical and chemical equipment
• Signal transmission between circuits of different potentials and impedances
• Facsimile equipment, audio, video
• Switching power supply, laser beam printer
Cosmo Electronics Corp.
Document No. 69P01001.2
-1-
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K2010 Series
6PIN PHOTOTRANSISTOR
PHOTOCOUPLER
cosmo

Outside Dimension
Unit : mm
1.Dual-in-line type.
2.Surface mount type.
K20101X
K20102X
7.62
7.62
6.50
6.50
7.30
3.50
3.50
7.30
0.10±0.1
0.25
2.70
3.00
0.40
0~10°
1.00
1.20
2.54
10.00±0.4
2.54
0.50
1.20
0.25
2.54
13.00
o
13.00
5.08
o
4.Long creepage distance
for surface mount type.
3.Long creepage distance type
K20106X
K20103X
10.16
7.62
7.62
7.30
10.16±0.50
7.30
0.90±0.25
1.20
0.90±0.25
11.80+0.2
-0.5
0~10°
0.25±0.2
0.30
3.50
6.50
2.70
0.25
3.00
3.50
6.50
1.20
2.54
5.08
0.50
2.54
TOLERANCE：±0.2mm
5.08

Device Marking
Notes:
cosmo
cosmo
2010
4N35
YWW
Cosmo Electronics Corp.
Document No. 69P01001.2
2010
4N35
YWW
□
-2-
Y: Year code / WW: Week code
□:CTR rank
http://www.cosmo-ic.com
K2010 Series
6PIN PHOTOTRANSISTOR
PHOTOCOUPLER
cosmo

Absolute Maximum Ratings
(Ta=25℃)
Parameter
Input
Output

Symbol
Rating
Unit
Forward current
IF
50
mA
Peak forward current
IFM
1
A
Reverse voltage
VR
6
V
Power dissipation
PD
70
mW
Collector-emitter voltage
VCEO
80
V
Emitter-collector voltage
VECO
6
V
Collector-base voltage
VCBO
60
V
Emitter-base voltage
VEBO
6
V
Collector current
IC
50
mA
Collector power dissipation
PC
150
mW
Total power dissipation
Ptot
200
mW
Isolation voltage 1 minute
Viso
5000
Vrms
Operating temperature
Topr
-55 to +115
℃
Storage temperature
Tstg
-55 to +125
℃
Soldering temperature 10 seconds
Tsol
260
℃
Electro-optical Characteristics
Parameter
(Ta=25℃)
Symbol
Conditions
Min.
Typ.
Max.
Unit
Forward voltage
VF
IF=20mA
-
1.2
1.4
V
Peak forward voltage
VFM
IFM=0.5A
-
-
3.5
V
Input
Reverse current
IR
VR=4V
-
-
10
μA
Terminal capacitance
Ct
V=0, f=1KHz
-
30
-
pF
ICEO
VCE=20V, IF=0
-
-
0.1
μA
CTR
IF=2mA, VCE=5V
60
-
600
%
-
0.1
0.3
V
-
Ω
Output Collector dark current
Current transfer ratio
Collector-emitter saturation
Isolation resistance
Transfer
charac- Floating capacitance
teristics
Cut-off frequency
VCE(sat) IF=20mA, IC=1mA
Riso
5x10
10
11
10
Cf
V=0, f=1MHz
-
0.6
1.0
pF
fC
VCC=5V, IC=2mA, RL=100Ω
-
80
-
KHz
-
5
20
μs
-
4
20
μs
Response time ( Rise )
tr
Response time ( Fall )
tf
Cosmo Electronics Corp.
Document No. 69P01001.2
DC500V
VCE=2V, IC=2mA, RL=100Ω
-3-
http://www.cosmo-ic.com
K2010 Series
6PIN PHOTOTRANSISTOR
PHOTOCOUPLER
cosmo
Fig.1 Current Transfer Ratio
vs. Forward Current
500
K2010 Model No.
K2010 A
K2010 B
K2010 C
K2010 D
K2010 E
Current Transfer Ratio
CTR ( % )
Classification table of current
transfer ratio is shown below.
CTR ( % )
60 ~ 160
130 ~ 260
200 ~ 400
300 ~ 600
60 ~ 600
VCE =5V
Ta=25℃
450
400
350
300
250
200
150
100
50
0
0 0.5 1
2
5 10
20
50
Forward Current IF (mA)
Fig.2 Collector Power Dissipation
vs. Ambient Temperature
Fig.3 Collector Dark Current
vs. Ambient Temperature
-5
10
Collector Dark Current
ICEO ( A )
Collector Power Dissipation
PC ( mW )
250
200
150
100
50
0
-55
VCE=20V
10-6
-7
10
-8
10
-9
10
-10
10
-11
10
0
25
50
75
-55
115 125
Ambient Temperature Ta (℃)
75
115
Fig.5 Forward Current
vs. Forward Voltage
60
50 0
Forward Current IF ( mA )
Forward Current IF ( mA )
50
Ambient Temperature Ta (℃)
Fig.4 Forward Current
vs. Ambient Temperature
50
40
30
20
10
0
-55
25
0
0
25
50
75
10 0
50
T a= 75° C
50 ° C
25° C
0° C
20
-2 5° C
10
5
2
1
1.0
115 125
1 .2
1.4
1.6
1.8
2.0
2 .2
2.4
Forward Voltage VF (V)
Ambient Temperature Ta (℃)
Cosmo Electronics Corp.
Document No. 69P01001.2
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-4-
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K2010 Series
6PIN PHOTOTRANSISTOR
PHOTOCOUPLER
cosmo
Fig.6 Collector Current
vs. Collector-Emitter Voltage
Fig.7 Relative Current Transfer Ratio
vs. Ambient Temperature
150
IF =30mA
Ta=25°C
20mA
25
Relative Current Transfer
Ratio ( % )
Collector Current IC (mA)
30
20
15
10mA
10
5mA
5
0
0
1
2
3
4
5
6
7
8
9
I F =2m A
VC E =5V
100
50
0
-55
Collector-Emitter Voltage VCE (V)
-25
0
25
50
Fig.9 Collector-Emitter Saturation
Voltage vs. Forward Current
IF = 2 0 m A
Ic = 1 m A
Collector-Emitter Saturation
Voltage VCE ( V )
Collector-Emitter Saturation
Voltage VCE ( V )
0 .1 6
0 .1 2
0 .1 0
0 .0 8
0 .0 6
0 .0 4
0 .0 2
0
-5 5
0
25
50
75
Ic=0.5mA
5
Ic=1mA
4
Ic=3mA
3
Ic=5mA
2
Ic=7mA
1
0
115
Ta=25 C
6
0 1
Ambient Temperature Ta (℃)
100
V CE =2V
Ic= 2m A
T a= 2 5° C
20
10
tr
5
2
1
0 .5
0 .2
0 .1
0 .03
0.1 0 .2
0 .5
1
2
5
10
Load Resistance RL (KΩ)
Cosmo Electronics Corp.
Document No. 69P01001.2
5
7
9
12
15
Fig.11 Response Time (Fall)
vs. Load Resistance
Response Fall Time ( us )
Response Rise Time ( us )
50
3
Forward Current IF (mA)
Fig.10 Response Time (Rise)
vs. Load Resistance
100
115
Ambient Temperature Ta (℃)
Fig.8 Collector-Emitter Saturation Voltage
vs. Ambient Temperature
0 .1 4
75
50
V C E= 2 V
Ic = 2 m A
T a=25° C
20
10
tf
5
2
1
0 .5
0 .2
0 .1
0 .0 3
0 .1 0 .2
0 .5
1
2
5
10
Load Resistance RL (KΩ)
-5-
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K2010 Series
6PIN PHOTOTRANSISTOR
PHOTOCOUPLER
cosmo

Test Circuit for Response Time
VCC
IF
RL
1
5
2
4
VCE
IF
VCE
90%
10%
tr
Cosmo Electronics Corp.
Document No. 69P01001.2
-6-
tf
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K2010 Series
6PIN PHOTOTRANSISTOR
PHOTOCOUPLER
cosmo
 Recommended Soldering Conditions
(a) Infrared reflow soldering：

Peak reflow soldering：
260℃ or below (package surface temperature)

Time of peak reflow temperature：
10 sec

Time of temperature higher than 230℃：
30-60 sec

Time to preheat temperature from 180~190℃： 60-120 sec

Time(s) of reflow：
Two

Flux：
Rosin flux containing small amount of chlorine (The
flux with a maximum chlorine content of 0.2 Wt% is
recommended.)
Recommended Temperature Profile of Infrared Reflow
10 sec M ax.
temperature
260℃
230℃
190℃
3 0 -6 0 s e c
180℃
6 0 -1 2 0 s e c
t (s )
(b) Wave soldering：

Temperature：
260℃ or below (molten solder temperature)

Time：
10 seconds or less

Preheating conditions：
120℃ or below (package surface temperature)

Time(s) of reflow：
One

Flux：
Rosin flux containing small amount of chlorine (The flux with a maximum
chlorine content of 0.2 Wt% is recommended.)
(c) Cautions：

Fluxes：
Avoid removing the residual flux with freon-based and chlorine-based
cleaning solvent.

Avoid shorting between portion of frame and leads.
Cosmo Electronics Corp.
Document No. 69P01001.2
-7-
http://www.cosmo-ic.com
K2010 Series
6PIN PHOTOTRANSISTOR
PHOTOCOUPLER
cosmo
 Numbering System
K2010 X Y (Z)
Notes:
K2010 = Part No.
X = Lead form option (1,2,3,6)
Y = CTR rank option (A ~ E)
Z = Tape and reel option (TL,TR,TLD,TRU)
Option
Packing quantity
2 (TL)
surface mount type package + TL tape & reel option
1000 units per reel
2 (TR)
surface mount type package + TR tape & reel option
1000 units per reel
6 (TLD)
6 (TRU)

Description
long creepage distance for surface mount type package +
TLD tape & reel option
long creepage distance for surface mount type package +
TRU tape & reel option
1000 units per reel
1000 units per reel
Recommended Pad Layout for Surface Mount Lead Form
2.Long creepage distance
for surface mount type.
6 pin L
1.Surface mount type.
6 pin SMD
Unit : mm
Cosmo Electronics Corp.
Document No. 69P01001.2
-8-
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K2010 Series
6PIN PHOTOTRANSISTOR
PHOTOCOUPLER
cosmo

6-pin SMD Carrier Tape & Reel
TOLERANCE：±0.2mm
Cosmo Electronics Corp.
Document No. 69P01001.2
-9-
http://www.cosmo-ic.com
K2010 Series
6PIN PHOTOTRANSISTOR
PHOTOCOUPLER
cosmo

6-pin L Carrier Tape & Reel
1.8
4.0
12.0
5°
7.6
12.2
24±0.3
11.5
2.0
0.4
TOLERANCE ：±0.2mm
TLD
Cosmo Electronics Corp.
Document No. 69P01001.2
4.15
TRU
- 10 -
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K2010 Series
6PIN PHOTOTRANSISTOR
PHOTOCOUPLER
cosmo

Application Notice
The content of datasheet is the guidance for product use only. cosmo takes no responsibility to the
accuracy of the information provided here. For continuously improving all of products, including quality,
reliability, function...etc., cosmo reserves the right to change the specification, characteristics, data,
materials, and structure of products without notice. Please contact with cosmo to obtain the latest
specification.
It would be required to comply with the absolute maximum ratings listed in the specification. cosmo has
no liability and responsibility to the damage caused by improper use of the products.
cosmo products are intended to be designed for use in general electronics application list below:
a. Personal computer
b. OA machine
c. Audio / Video
d. Instrumentation
e. Electrical application
f. Measurement equipment
g. Consumer electronics
h. Telecommunication
cosmo devices shall not be used or related with equipment requiring higher level of quality / reliability, or
malfunction, or failure which may cause loss of human life, bodily injury, includes, without limitation:
a. Medical and other life supporting equipments
b. Space application
c. Telecommunication equipment (trunk lines)
d. Nuclear power control
e. Equipment used for automotive vehicles, trains, ships...etc.
This publication is the property of cosmo. No part of this publication may be reproduced or copied in any form
or any means electronically or mechanically for any purpose, in whole or in part without any written permission
expressed from cosmo.
Cosmo Electronics Corp.
Document No. 69P01001.2
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