KPC357NT0W

KPC357NT0W Series
4PIN MINI-FLAT LOW INPUT CURRENT
PHOTOCOUPLER
cosmo
 Description
 Schematic
The KPC357NT0W is DC-input single channel which
contains a light emitting diode optically coupled to a
1
4
2
3
phototransistor. It is packaged in a 4-pin Mini-Flat package.
The input-output isolation voltage is rated at 3750 Vrms.
1. Anode
2. Cathode
3. Emitter
4. Collector
 Features
1. Halogen free
2. Pb free and RoHS compliant
3. Low input current type (IF=0.5mA)
4. Current transfer ratio
(CTR : 100~600% at IF=0.5mA Vce=5V)
5. High collector-emitter voltage (Vceo:80V)
6. High isolation voltage between input and output (Viso:3750Vrms)
7. Mini-flat package: compact 4 pin SOP with a 2.0mm profile
8. MSL class 1
9. Agency Approvals:
• UL Approved (No. E169586): UL1577
• c-UL Approved (No. E169586)
• VDE Approved (No. 40014684): DIN EN60747-5-5
• FIMKO Approved: EN60065, EN60950
• CQC Approved: GB8898-2011, GB4943.1-2011

Applications
• Computer terminals, programmable controllers
• Facsimile equipment, audio, video
• Communications, telephone, etc.
Cosmo Electronics Corp.
Document No. 69P04003.2
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KPC357NT0W Series
4PIN MINI-FLAT LOW INPUT CURRENT
PHOTOCOUPLER
cosmo
Outside Dimension
Unit : mm
3.90 ±0.5
2.0 ±0.5
4.40 ±0.5
0.10±0.10

0.40
0.50
2.54
7.00 ±0.4
TOLERANCE : ±0.2mm

Device Marking
Notes:
Cosmo
357NT
YWW
W□
Cosmo Electronics Corp.
Document No. 69P04003.2
-2-
Y: Year code / WW: Week code
□:CTR rank
http://www.cosmo-ic.com
KPC357NT0W Series
4PIN MINI-FLAT LOW INPUT CURRENT
PHOTOCOUPLER
cosmo

Absolute Maximum Ratings
(Ta=25℃)
Parameter
Symbol
Rating
Unit
Forward current
IF
50
mA
Peak forward current
IFM
200
mA
Reverse voltage
VR
6
V
Power dissipation
PD
15
mW
Collector-Emitter voltage
VCEO
80
V
Emitter-Collector voltage
VECO
7
V
Collector current
IC
50
mA
Collector power dissipation
PC
150
mW
Total power dissipation
Ptot
170
mW
Isolation voltage 1 minute
Viso
3750
Vrms
Operating temperature
Topr
-55 to +115
℃
Storage temperature
Tstg
-55 to +125
℃
Soldering temperature 10 seconds
Tsol
260
℃
Input
Output

Electro-optical Characteristics
Input
Output
Parameter
Symbol
Forward voltage
VF
Reverse current
(Ta=25℃)
Min.
Typ.
Max.
Unit
IF=10mA
-
1.2
1.8
V
IR
VR=4V
-
-
10
μA
Terminal capacitance
Ct
V=0, f=1KHz
-
30
250
pF
Collector dark current
ICEO
VCE=50V
-
-
0.1
μA
Current transfer ratio
CTR
IF=0.5mA, VCE=5V
100
-
600
%
-
0.1
0.2
V
-
Ω
Collector-Emitter
saturation voltage
Transfer
charac- Isolation resistance
teristics
Floating capacitance
Conditions
VCE(sat) IF=10mA, IC=1mA
Riso
DC500V,40% to 60%RH
5x10
10
11
10
Cf
V=0, f=1MHz
-
0.6
1.0
pF
Response time (Rise)
tr
-
4
18
μs
Response time (Fall)
tf
VCE=2V, IC=2mA,
RL=100Ω
-
3
18
μs
Cosmo Electronics Corp.
Document No. 69P04003.2
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KPC357NT0W Series
4PIN MINI-FLAT LOW INPUT CURRENT
PHOTOCOUPLER
cosmo
Fig.1 Current Transfer Ratio
vs. Forward Current
Current Transfer Ratio
CTR ( % )
800
Classification table of current
transfer ratio is shown below.
CTR Rank.
KPC357NT0WA
KPC357NT0WB
KPC357NT0WC
KPC357NT0WD
CTR ( % )
100 TO 600
200 TO 500
160 TO 400
120 TO 300
Ta=25℃
VCE =5V
700
600
500
400
300
200
100
0
0.1
1 2
0.5
10
5
20
Forward Current IF (mA)
Fig.2 Collector Power Dissipation
vs. Ambient Temperature
Fig.3 Collector Dark Current
vs. Ambient Temperature
Collector Dark Current
ICEO ( A )
Collector Power Dissipation
PC ( mW )
-5
10
200
150
100
50
0
-55
0
25
55
75
100
10-6
-7
10
-8
10
-9
10
-10
10
-11
10
125
-55
Ambient Temperature Ta (℃)
50
75
115
Fig.5 Forward Current
vs. Forward Voltage
100
Forward Current IF ( mA )
60
Forward Current IF ( mA )
25
0
Ambient Temperature Ta (℃)
Fig.4 Forward Current
vs. Ambient Temperature
50
40
30
20
10
0
-55
V CE=50V
25° C
50° C
10
Ta=75°C
0° C
Ta=75° C
-25° C
1
0.1
0
25
50
75
115 125
0
Cosmo Electronics Corp.
Document No. 69P04003.2
0.5
1.0
1.5
Forward Voltage VF (V)
Ambient Temperature Ta (℃)
-4-
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KPC357NT0W Series
4PIN MINI-FLAT LOW INPUT CURRENT
PHOTOCOUPLER
cosmo
Fig.6 Collector Current
vs. Collector-Emitter Voltage
Fig.7 Relative Current Transfer Ratio
vs. Ambient Temperature
150
6
Ta=25°C
5mA
5
Relative Current Transfer
Ratio ( % )
Collector Current IC (mA)
IF =10mA
4
3
1mA
2
0.5mA
1
0.1mA
0
0
1
2
3
4
5
6
7
8
IF = 0 .5 m A
VC E = 5 V
100
50
0
9
-5 5
Collector-Emitter Voltage VCE (V)
Collector-Emitter Saturation
Voltage VCE ( V )
Collector-Emitter Saturation
Voltage VCE ( V )
IF = 10 m A
Ic= 1 m A
0 .1 2
0 .1 0
0 .0 8
0 .0 6
0 .0 4
0 .0 2
0
0
25
50
75
Ta=25° C
6
Ic=0.5mA
5
Ic=1m A
4
Ic=3m A
3
Ic=7m A
1
0
115
Response Fall Time ( us )
tr
10
5
2
1
0 .5
0 .2
0 .1
0 .1
1
4
8
6
10
50
VC E = 2 V
Ic = 2 m A
T a = 2 5 °C
tf
20
10
5
2
1
0 .5
0 .2
0 .1
10
0 .1
Load Resistance RL (KΩ)
Cosmo Electronics Corp.
Document No. 69P04003.2
2
Fig.11 Response Time (Fall)
vs. Load Resistance
100
20
0
Forward Current IF (mA)
Fig.10 Response Time (Rise)
vs. Load Resistance
VC E = 2 V
Ic = 2 m A
Ta=25°C
Ic=5mA
2
Ambient Temperature Ta (℃)
Response Rise Time ( us )
115
7
0 .1 4
50
75
50
Fig.9 Collector-Emitter Saturation
Voltage vs. Forward Current
0 .1 6
100
25
Ambient Temperature Ta (℃)
Fig.8 Collector-Emitter Saturation Voltage
vs. Ambient Temperature
-5 5
0
1
10
Load Resistance RL (KΩ)
-5-
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KPC357NT0W Series
4PIN MINI-FLAT LOW INPUT CURRENT
PHOTOCOUPLER
cosmo

Test Circuit for Response Time
Vcc
IF
RL
1
4
2
3
Vce
IF
Vce
90%
10%
tr
Cosmo Electronics Corp.
Document No. 69P04003.2
-6-
tf
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KPC357NT0W Series
4PIN MINI-FLAT LOW INPUT CURRENT
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. 69P04003.2
-7-
http://www.cosmo-ic.com
KPC357NT0W Series
4PIN MINI-FLAT LOW INPUT CURRENT
PHOTOCOUPLER
cosmo
 Numbering System
KPC357NT0W Y (Z)
Notes:
KPC357NT0W = Part No.
Y = CTR rank option (A ~ D)
Z = Tape and reel option (TLD、TRU)
Option
Description
Packing quantity
TLD
TLD tape & reel option
3000 units per reel
TRU
TRU tape & reel option
3000 units per reel
 Recommended Pad Layout for Surface Mount Lead Form
Unit : mm
Cosmo Electronics Corp.
Document No. 69P04003.2
-8-
http://www.cosmo-ic.com
KPC357NT0W Series
4PIN MINI-FLAT LOW INPUT CURRENT
PHOTOCOUPLER
cosmo

4-pin Mini-Flat Carrier Tape & Reel
TOLERANCE :±0.2mm
Cosmo Electronics Corp.
Document No. 69P04003.2
-9-
http://www.cosmo-ic.com
KPC357NT0W Series
4PIN MINI-FLAT LOW INPUT CURRENT
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. 69P04003.2
- 10 -
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