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Photocoupler
K401 * K402 * K404
These Photocouplers consist of two Gallium Arsenide Infrared Emitting Diodes and a Silicon NPN Photo Darlington transistor per a channel. The K401 has one channel in a 4-pin mini-flat SMD package. The K402 has two channels in a 8-pin mini-flat SMD package. The K404 has four channels in a 16-pin mini-flat SMD package.
FEATURES
* Mini-flat Package * Collector-Emitter Voltage : Min.30V * Current Transfer Ratio : Type 600% (at IF=A1mA, VCE=2V) * Electrical Isolation Voltage : AC3750Vrms
APPLICATIONS
* AC Signal Input * Interface between two circuits of different potential * Automatic Vending Machine * Copiers, Industrial Robots
DIMENSION K401
4
0.2
(Unit : mm) K402
3
0.2
8
7
6
5
4.4
4.4
1
Orientation Mark 7.0 3.6 0.2 0.2 0.5
2
Orientation Mark
1
2
3
4
7.0 0.05 8.7 0.2 0.2 5.2
0.5 0.2
5.2 0.2
0.15
2.5
0.1
2.54 2.54 0.25 0.1
2.54
K404
16 15 14 13 12 11 10 9
4.4
0.2
1
2
3
4
5
6
7
8
Orientation Mark 7.0 18.8 0.2 0.2 5.2 0.5 0.2
2.5
0.1
2.54
2.54
0.1
1/3
0.15
0.05
0.4Min.
0.15
0.05
0.4
0.1
0.4Min.
2.5
0.4Min.
Photocoupler
K401 * K402 * K404
MAXIMUM RATINGS Parameter
Forward Current Input Peak Forward Current Power Dissipation Junction temperature Collector-Emitter Breakdown Voltage Output Emitter-Collector Breakdown Voltage Collector Current Collector Power Dissipation Input to Output Isolation Voltage Storage Temperature Operating Temperature Lead Soldering Temperature*3 Total Power Dissipation
*1. Input current with 100s pulse width, 1% duty cycle *2. Measured at RH=40~60% for 1min *3. 1/16 inch form case for 10sec
*2 *1
Symbol
IF IFP PD TJ BVCEO BVECO IC PC Viso Tstg Topr Tsol Ptot
Rating
3/450 3/41 70 125 30 5 50 150 AC3750 -55~+125 -30~+85 260 250
(Ta=25E ) Unit
mA A mW E V V mA mW Vrms E E E mW
ELECTRO-OPTICAL CHARACTERISTICS
Parameter Input Forward Voltage Capacitance Collector-Emitter Breakdown Voltage Output Emitter-Collector Breakdown Voltage Collector Dark Current Capacitance Current Transfer Ratio
*4
(Ta=25
Symbol VF CT BVCEO BVECO ICEO CCE CTR VCE(SAT) CIO RIO tr tf Condition IF= 3/410mA V=0, f=1kHz IC=0.5mA IE=0.1mA IF=0, VCE=10V VCE=0, f=1KHz IF= 3/41mA, VCE=2V IF= 3/41mA, IC=2mA V=0, f=1KHz RH=40~60%, V=500V VCE=10V, RL=100 IC=10mA Min. 30 5 300 -
, unless otherwise noted)
Typ. 1.15 30 10 0.8 5 1011 90 120 Max. 1.30 100 1.2 Unit. V pF V V nA pF % V pF U A A
Collector-Emitter Saturation Voltage Coupled Input-Output Capacitance Input-Output Isolation Resistance Rise Time Fall Time
*4. CTR=(IC/IF) X 100 (%)
2/3
Photocoupler
K401 * K402 * K404
Forward Current vs. Ambient Temperature
50
Collector Power Dissipation vs. Ambient Temperature
Collector Power Dissipation PC (mW)
250 100
Forward Current vs. Forward Voltage
Forward Current IF (mA)
Forward Current IF (mA)
40
200
80
30
150
60 Ta=70E Ta=25E
20
100
40
10 0 -20
50 0 -20
20 Ta=-55E 0.4 0.8 1.2 1.6
0 0 20 40 60 80 100
0
20
40
60
80
100
Ambient Temperature Ta (E )
Forward Voltage VF (V)
Collector Current vs. Collector-Emitter Voltage
Ta=25E 40 IF=3.5mA 10
Dark Current vs. Ambient Temperature
40 30 1
Collector Current vs. Forward Current
Ta=25E VCE=2V
Collector Current IC (mA)
Collector Current IC (mA)
Dark Current ICEO (uA)
IF=3.0mA 30 IF=2.5mA IF=2.0mA PC(max.)
25 20 15 10 5
0.1
20
IF=1.5mA IF=1mA
10
0.01
VCE=10V
0
2
4
6
8
10
0.001
0
20
40
60
80
100
0
1
2
3
4
5
6
Collector-Emitter Voltage VCE (V)
Ambient Temperature Ta (E )
Forward Current IF (mA)
Response Time vs. Load Resistance
5000 VCE=10V IC=10mA Ta=25E VIN
Switching Time Test Circuit
VCC R RL VO
Response Time tr, tf (us)
1000
tf 100 tr
Test Circuit
10
Input Output 10%
10 0.05
0.1
0.2
0.5
1
2
90%
tr
tf
Load Resistance RL (U )
Waveform
3/3

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