Photocoupler
K4N35 •K4N36 •K4N37
These Photocouplers consist of a Gallium Arsenide Infrared Emitting
DIMENSION
Diode and a Silicon NPN Phototransistor in 6-pin package.
6
5
4
(Unit : mm)
7.62
6.4
0.25
FEATURES
• Switching Time - Typ. 3µs
• Collector-Emitter Voltage : Min.30V
• Current Transfer Ratio : Typ.100% (at I
F
=10mA, V
CE
=10V)
• Electrical Isolation Voltage : AC2500V
rms
6.4
0.25
0.25
1
8.9
Orientation Mark
0.25
3
0
-15
0.25
• UL Recognized File No. E107486
0.51Min.
PIN NO. AND INTERNAL
CONNECTION DAGRAM
APPLICATIONS
• Interface between two circuits of different potential
• Vending Machine, Voltage Regulator
• Traffic Controller System
• Programmable Controller
2.7Min.
3.8
6
5
4
0.5
2.54
0.25
1.2
1
2
3
MAXIMUM RATINGS
Parameter
Forward Current
Input
Reverse Voltage
Peak Forward Current
Power Dissipation
Collector-Emitter Breakdown Voltage
Emitter-Collector Breakdown Voltage
Output
Collector-Base Breakdown Voltage
Collector Current
Collector Power Dissipation
Input to Output Isolation Voltage
Storage Temperature
Operating Temperature
Lead Soldering Temperature
Total Power Dissipation
*1. Input current with 100µs pulse width, 1% duty cycle
*2. Measured at RH=40~60% for 1min
*3. 1/16 inch form case for 10sec
*4. Customer Option
*3
*2
*1
Symbol
I
F
V
R
I
FP
P
D
BV
CEO
BV
ECO
BV
CBO
I
C
P
C
V
iso
T
stg
T
opr
T
sol
P
tot
Rating
60
5
3
70
35
6
70
50
150
AC2500
-55~+125
-30~+100
260
200
*4
(Ta=25℃ )
Unit
mA
V
A
mW
V
V
V
mA
mW
V
rms
℃
℃
℃
mW
1/3
Photocoupler
K4N35 •K4N36 •K4N37
ELECTRO-OPTICAL CHARACTERISTICS
Parameter
Forward Voltage
Input
Reverse Current
Capacitance
Collector-Emitter Breakdown Voltage
Emitter-Collector Breakdown Voltage
Output
Collector-Base Breakdown Voltage
Collector Dark Current
Capacitance
Current Transfer Ratio
*5
Symbol
V
F
I
R
C
T
BV
CEO
BV
ECO
BV
CBO
I
CEO
C
CE
CTR
V
CE(SAT)
C
IO
R
IO
tr
tf
Condition
I
F
=10mA
V
R
=5V
V=0, f=1MHz
I
C
=1mA
I
E
=0.1mA
I
C
=0.1mA
I
F
=0, V
CE
=10V
V
CE
=0, f=1MHz
I
F
=10mA, V
CE
=10V
I
F
=10mA, I
C
=0.5mA
V=0, f=1MHz
RH=40~60%, V=500V
V
CC
=10V, R
L
=100Ω
I
C
=2mA
(Ta=25℃ , unless otherwise noted)
Min.
Max.
Unit.
Typ.
-
-
-
35
6
70
-
-
100
-
-
-
-
-
1.15
-
30
-
-
-
-
10
-
0.15
1
10
11
3
3
1.30
10
-
-
-
-
50
-
-
0.3
-
-
10
10
V
㎂
pF
V
V
V
nA
pF
%
V
pF
℃
℃
℃
Collector-Emitter Saturation Voltage
Coupled
Input-Output Capacitance
Input-Output Isolation Resistance
Rise Time
Fall Time
*5. CTR=(I
C
/I
F
) X 100 (%)
2/3
Photocoupler
K4N35 • K4N36
• K4N37
Forward Current vs.
Ambient Temperature
50
Collector Power Dissipation vs.
Ambient Temperature
Collector Power Dissipation P
C
(mW)
250
100
Forward Current vs.
Forward Voltage
Forward Current I
F
(mA)
Forward Current I
F
(mA)
40
200
80
30
150
60
T
a
=70℃
40
T
a
=25℃
20
T
a
=-55℃
20
100
10
50
0
-20
0
20
40
60
80
100
0
-20
0
0
20
40
60
80
100
0.4
0.8
1.2
1.6
Ambient Temperature T
a
(℃ )
Ambient Temperature T
a
(℃ )
Forward Voltage V
F
(V)
Collector Current vs.
Collector-Emitter Voltage
T
a
=25℃
40
I
F
=30mA
1
Dark Current vs.
Ambient Temperature
100
Collector Current vs.
Ambient Temperature
Collector Current I
C
(mA)
Collector Current I
C
(mA)
Dark Current I
CEO
(㎂)
I
F
=20mA
10
I
F
=10mA
I
F
=5mA
30
I
F
=20mA
0.1
20
V
CE
=10V
0.01
I
F
=10mA
I
F
=5mA
1
I
F
=1mA
10
I
F
=1mA
0
2
4
6
8
10
0.001
0
20
40
60
80
100
0
-20
0
20
40
60
80
Collector-Emitter Voltage V
CE
(V)
Ambient Temperature T
a
(℃
)
Ambient Temperature T
a
(℃ )
Response Time vs.
Load Resistance
500
100
V
CE
=10V
I
C
=2mA
T
a
=25℃
Collector Current vs.
Forward Current
T
a
=25℃
V
CE
=10V
Switching Time Test Circuit
V
IN
R
V
CC
R
L
V
O
Response Time t
r
, t
f
(μs)
100
tf
tr
10
Collector Current I
C
(mA)
10
1
Test Circuit
0.1
Input
1
0.01
Output
10%
0.1
0.1
1.0
5.0
0.001
0.1
90%
1
10
100
tr
tf
Load Resistance R
L
(㏀)
Forward Current
I
F
(mA)
Forward Current
I
F
(mA)
Waveform
3/3
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