Photocoupler
FEATURES
Collector-Emitter Voltage : Min.35V
Current Transfer Ratio : Typ.500% (at I
F
=1mA, V
CE
=2V)
Electrical Isolation Voltage : AC2500V
rms
UL Recognized File No. E107486
APPLICATIONS
Interface between two circuits of different potential
Automatic Vending Machine
Power Supply Regulators
MAXIMUM RATINGS
( Ta=25
)
** Except for K3620
*1. Input current with 100
pulse width, 1% duty cycle
*2. Measured at RH=40~60% for 1min
*3. 1/16 inch form case for 10sec
V
mW
Unit
Input
Forward Current
I
F
60
mA
A
Junction Temperature T
J
Parameter
Total Power Dissipation
Peak Forward Current
*1
I
FP
1
P
tot
200
Output
Collector-Emitter Breakdown Voltage
BV
CEO
35
125
Emitter-Collector Breakdown Voltage
BV
ECO
6
Collector-Base Breakdown Voltage**
BV
CBO
35
Collector Current
I
C
50
mA
150
mW
V
V
V
Input to Output Isolation Voltage
*2
V
iso
AC2500
V
rms
-30~+100
Storage Temperature T
stg
-55~+125
Collector Power Dissipation
P
C
Lead Soldering Temperature
*3
T
sol
Operating Temperature
T
opr
260
mW
K3620 K3621
These Photocouplers cosist of a Gallium Arsenide Infrared Emitting
Diode and a Silicon NPN PhotoDarlington transistor in a 6-pin
package.
Power Dissipation
P
D
150
Rating
Telephone Line Receiver
Symbol
Reverse Voltage
V
R
5
DIMENSION
(Unit : mm)
1/3
3
2
1
6
5
4
4
5
6
1
2
3
PIN NO. AND INTERNAL
CONNECTION DIAGRAM
K3620
K3621
Photocoupler
ELECTRO-OPTICAL CHARACTERISTICS
(Ta=25
, unless otherwise noted)
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
=1mA, I
C
=2mA
V=0, f=1MHz
V
CE
=10V, R
L
=100
I
C
=2mA
** Except for K3620
*4. CTR=(I
C
/I
F
) X 100 (%)
Reverse Current
I
R
-
I
CEO
-
-
Min.
-
-
V
V
V
35
-
35
Collector-Base Breakdown Voltage **
Input-Output Isolation Resistance
Input-Output Capacitance
Capacitance
Current Transfer Ratio
*4
Collector-Emitter Saturation Voltage
C
CE
C
IO
Output
Forward Voltage
Capacitance
Collector-Emitter Breakdown Voltage
Emitter-Collector Breakdown Voltage
Collector Dark Current
-
-
6
-
100
nA
500
-
-
-
pF
%
V
pF
1.0
tr
-
R
IO
0.85
1
100
-
pF
Symbol
V
F
-
Max.
30
1.30
10
-
-
-
-
Typ.
1.15
V
K3620 K3621
Parameter
Unit.
Input
100
10
11
-
-
10
-
-
-
Coupled
Rise Time
Fall Time
Condition
tf
C
T
-
CTR
I
F
=1mA, V
CE
=2V
RH=40~60%, V=500V
BV
CEO
V
CE(SAT)
BV
ECO
BV
CBO
2/3
Photocoupler
K3620 K3621
3/3
Ambient Temperature
T
a
(
)
Forward Current vs.
Ambient Temperature
0
-20 0 20
F
o
r
w
a
r
d
c
u
r
r
e
n
t
I
F
(
m
A
)
10
20
40
30
50
40 60 100
Collector-Emitter Voltage
V
CE
(V)
Collector Current vs.
Collector-Emitter Voltage
0 2 4 6
C
o
l
l
e
c
t
o
r
C
u
r
r
e
n
t
I
C
(
m
A
)
8 10
80
D
a
r
k
C
u
r
r
e
n
t
I
C
E
O
(
u
A
)
Ambient Temperature
T
a
(
)
0
0.001
0.01
40
20
0.1
10
80
60 100
Dark Current vs.
Ambient Temperature
10
20
30
40
Output
Input
Test Circuit
V
IN
R
R
L
V
O
V
CC
Waveform
10%
90%
Switching Time Test Circuit
tr
tf
1
C
o
l
l
e
c
t
o
r
C
u
r
r
e
n
t
I
C
(
m
A
)
Forward Current
I
F
(mA)
10
0
1 3 5 7 9 11
Collector Current vs.
Forward Current
40
30
20
~
60
50
100
C
o
l
l
e
c
t
o
r
P
o
w
e
r
D
i
s
s
i
p
a
t
i
o
n
P
C
(m
W
)
Collector Power Dissipation vs.
Ambient Temperature
250
40
Ambient Temperature
T
a
(
)
0
-20
0
20
150
50
100
200
80
60 100
Forward Voltage
V
F
(V)
20
0
0.4
100
120
140
60
40
80
F
o
r
w
a
r
d
C
u
r
r
e
n
t
I
F
(
m
A
)
1.2
0.8 1.6
T
a
=70
T
a
=25
T
a
=-55
Forward Current vs.
Forward Voltage
2.0
60
I
F
=3mA
I
F
=2.5mA
I
F
=2mA
I
F
=1.5mA
I
F
=0.5mA
I
F
=1mA
P
C
(max.)
V
CE
=24V
V
CE
=10V
T
a
=25
T
a
=25
V
CE
=2V
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