KPC357NT Series
cosmo
Description
The KPC357 is DC-input single channel which
contains a light emitting diode optically coupled to a
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
4PIN MINI-FLAT PHOTOTRANSISTOR
PHOTOCOUPLER
Schematic
1
4
2
3
Features
1. Pb free and RoHS compliant
2. Mini-flat package: compact 4 pin SOP with a 2.0mm profile
3. Current transfer ratio
(CTR : Min.50% at I
F
=5mA Vce=5V)
4. Isolation voltage between input and output
(Viso : 3750vrms).
5. MSL class 1
6. Agency Approvals:
• UL Approved (No. E169586): UL1577
• c-UL Approved (No. E169586)
• VDE Approved (No. 40014684): DIN EN 60747-5-5
• FIMKO Approved: EN60065, EN60950
• CQC Approved: GB8898-2011, GB4943.1-2011
Applications
• Hybrid substrates that require high density mounting
• Programmable controllers
• DC-DC converters
• Telecommunication equipments
Cosmo Electronics Corp.
Document No. 69P04001.4
-1-
http://www.cosmo-ic.com
KPC357NT Series
cosmo
Outside Dimension
4PIN MINI-FLAT PHOTOTRANSISTOR
PHOTOCOUPLER
Unit : mm
4.40
±
0.5
3.90
±
0.5
0.40
0.50
7.00
±
0.4
2.54
TOLERANCE : ±0.2mm
Device Marking
Notes:
Cosmo
357NT
YWW
□
Y: Year code / WW: Week code
□:CTR
rank
Cosmo Electronics Corp.
Document No. 69P04001.4
-2-
http://www.cosmo-ic.com
0.10
±
0.10
2.0
±
0.5
KPC357NT Series
cosmo
Absolute Maximum Ratings
Parameter
Forward current
Peak forward current
Input
Reverse voltage
Power dissipation
Collector-Emitter voltage
Emitter-Collector voltage
Output
Collector current
Collector power dissipation
Total power dissipation
Isolation voltage 1 minute
Operating temperature
Storage temperature
Soldering temperature 10 seconds
Symbol
I
F
I
FM
V
R
P
D
V
CEO
V
ECO
I
C
P
C
Ptot
Viso
Topr
Tstg
Tsol
Rating
50
1
6
70
80
5
50
150
170
3750
-55 to +115
-55 to +125
260
4PIN MINI-FLAT PHOTOTRANSISTOR
PHOTOCOUPLER
(Ta=25℃)
Unit
mA
A
V
mW
V
V
mA
mW
mW
Vrms
℃
℃
℃
(Ta=25℃)
Conditions
I
F
=20mA
V
R
=4V
V=0, f=1KH
Z
V
CE
=20V, I
F
=0
Ic=100uA , I
F
=0
I
E
=100uA, I
F
=0
I
F
=5mA, V
CE
=5V
Min.
–
–
–
–
80
5
50
15
–
5x10
10
–
–
Vce=2V,Ic=2mA,R
L
=100Ω
–
Typ.
1.2
–
30
–
-
-
–
–
0.1
10
11
0.6
5
4
Max. Unit
1.4
10
250
0.1
-
-
600
–
0.3
–
1.0
20
20
V
uA
pF
uA
V
V
%
%
V
Ω
pF
us
us
Electro-optical Characteristics
Parameter
Forward voltage
Input
Reverse current
Terminal capacitance
Collector dark current
Collector-Emitter breakdown
Output voltage
Emitter-Collector breakdown
voltage
Current transfer ratio
Collector-Emitter saturation
Transfer
voltage
charac-
teristics Isolation resistance
Floating capacitance
Response time (Rise)
Response time (Fall)
Symbol
V
F
I
R
Ct
I
CEO
BV
CEO
BV
ECO
CTR
I
F
=1mA, V
CE
=5V
V
CE
(sat) I
F
=20mA, Ic=1mA
Riso
Cf
tr
tf
DC500V, 40 to 60%RH
V=0, f=1MH
Z
Cosmo Electronics Corp.
Document No. 69P04001.4
-3-
http://www.cosmo-ic.com
KPC357NT Series
cosmo
4PIN MINI-FLAT PHOTOTRANSISTOR
PHOTOCOUPLER
Fig.1
Current Transfer Ratio
vs. Forward Current
Classification table of current
transfer ratio is shown below.
CTR Rank.
KPC357NT0A
KPC357NT0B
KPC357NT0C
KPC357NT0D
KPC357NT0E
CTR ( % )
80 TO 160
130 TO 260
200 TO 400
300 TO 600
50 TO 600
Marking of
Classification
A
B
C
D
Blank,A,B,C,D,E
5 0 0
4 5 0
V
CE
=5V
Ta=25
℃
Current Transfer Ratio
CTR ( % )
4 0 0
3 5 0
3 0 0
2 5 0
2 0 0
1 5 0
1 0 0
5 0
0
0
0 . 5
1
2
5 1 0
2 0
5 0
Forward Current I
F
(mA)
Fig.2 Collector Power Dissipation
vs. Ambient Temperature
Collector Power Dissipation
P
C
( mW )
Fig.3 Collector Dark Current
vs. Ambient Temperature
-5
10
V
C E
= 2 0 V
Collector Dark Current
I
CEO
( A )
0
25
55
75
100
125
200
150
100
50
0
-55
-6
10
10
10
10
10
10
-7
-8
-9
-1 0
-1 1
-5 5
-2 5
0
25
50
75
100
115
Ambient Temperature Ta (℃)
Ambient Temperature Ta (℃)
Fig.4 Forward Current
vs. Ambient Temperature
60
Fig.5 Forward Current
vs. Forward Voltage
500
Forward Current I
F
( mA )
Forward Current I
F
( mA )
50
40
30
20
10
0
-55
200
100
50
20
10
5
2
1
0
0.5
1.0
1.5
Ta=75
℃
50
℃
25
℃
0
℃
-25
℃
0
25
50
75
115 125
2.0
2.5
3.0
Ambient Temperature Ta (℃)
Cosmo Electronics Corp.
Document No. 69P04001.4
Forward Voltage V
F
(V)
http://www.cosmo-ic.com
-4-
KPC357NT Series
cosmo
Fig.6 Collector Current
vs. Collector-Emitter Voltage
Ta=25
℃
I
F
=30m A
I
F
=20m A
I
F
=10m A
4PIN MINI-FLAT PHOTOTRANSISTOR
PHOTOCOUPLER
Fig.7 Relative Current Transfer Ratio
vs. Ambient Temperature
150
40
30
20
10
Relative Current Transfer
Ratio ( % )
Collector Current I
C
(mA)
50
I
F
= 5 m A
V ce= 5 V
10 0
P
C
(M A X )
I
F
=5m A
50
0
-5 5
-2 5
0
25
50
75
1 15
0
5
10
Collector-Emitter Voltage V
CE
(V)
Ambient Temperature Ta (℃)
Fig.8 Collector-Emitter Saturation Voltage
vs. Ambient Temperature
0 . 1 6
I
Fig.9 Collector-Emitter Saturation
Voltage vs. Forward Current
7
Collector-Emitter Saturation
Voltage V
CE
( V )
0 . 1 4
I
0 . 1 2
0 . 1 0
0 . 0 8
0 . 0 6
0 . 0 4
0 . 0 2
0
- 5 5
0
2 0
4 0
6 0
8 0
C
Collector-Emitter Saturation
Voltage V
CE
( V )
F
= 2 0 m A
= 1 m A
Ta=25°C
6
Ic=0.5mA
5
Ic=1mA
4
Ic=3mA
3
2
1
0
5
10
Ic=5mA
Ic=7mA
1 0 0
1 2 0
0
Ambient Temperature Ta (℃)
Forward Current I
F
(mA)
Fig.10 Response Time (Rise)
vs. Load Resistance
100
Fig.11 Response Time (Fall)
vs. Load Resistance
100
Response Rise Time ( us )
50
20
10
5
2
1
0 .5
0 .2
0 .1
Response Fall Time ( us )
V
C E
= 2 V
Ic = 2 m A
Ta=25°C
50
20
10
5
2
1
0 .5
0 .2
0 .1
tr
V
C E
= 2 V
Ic = 2 m A
T a = 2 5 °C
tf
0 .1
1
10
0 .1
1
10
Load Resistance R
L
(KΩ)
Cosmo Electronics Corp.
Document No. 69P04001.4
Load Resistance R
L
(KΩ)
-5-
http://www.cosmo-ic.com
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