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Photocoupler
K4N25 * K4N25A
These Photocouplers consist of a Gallium Arsenide Infrared Emitting DIMENSION Diode and a Silicon NPN Phototransistor in a 6-pin package.
7.62 0.25
(Unit : mm)
FEATURES
* Switching Time - Typ. 3A * Collector-Emitter Voltage : Min.30V * Current Transfer Ratio : Typ.100% (at IF=10mA, VCE=10V) * Electrical Isolation Voltage : AC2500Vrms * UL Recognized File No. E107486
0.25
6
5
4
6.4
6.4
0.25 1 8.9 Orientation Mark 2 0.25 3
0
-15
APPLICATIONS
* Interface between two circuits of different potential * Vending Machine, Voltage Regulator * Traffic Controller System * Programmable Controller
0.51Min.
0.25
6
5
4
2.7Min.
3.8
0.5 2.54 0.25 1.2
1
2
3
MAXIMUM RATINGS Parameter
Forward Current Input Reverse Voltage Peak Forward Current *1 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 100A 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
Symbol
IF VR IFP PD BVCEO BVECO BVECO IC PC Viso Tstg Topr Tsol Ptot
Rating
80 5 3 70 35 6 70 50 150 AC2500 -55~+125 -30~+100 260 200
*4
(Ta=25E ) Unit
mA V A mW V V V mA mW Vrms E E E mW
1/3
Photocoupler
K4N25 * K4N25A
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 VF IR CT BVCEO BVECO BVCBO ICEO CCE CTR VCE(SAT) CIO RIO tr tf
Condition IF=10mA VR=5V V=0, f=1MHz IC=1mA IE=0.1mA IC=0.1mA IF=0, VCE=10V VCE=0, f=1MHz IF=10mA, VCE=10V IF=50mA, IC=1mA V=0, f=1MHz
(Ta=25E , unless otherwise noted) Min. Max. Unit. Typ. 35 6 70 20 1.15 30 10 0.15 1 10
11
1.30 10 100 0.4 -
V E pF V 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
*5. CTR=(IC/IF) X 100 (%)
RH=40~60%, V=500V VCE=5V, RL=100U IC=2mA
3 3
2/3
Photocoupler
K4N25 * K4N25A
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
50
20 Ta=-55E 0.4 0.8 1.2 1.6
0 -20
0
20
40
60
80
100
0 -20
0 0 20 40 60 80 100
Ambient Temperature Ta (E )
Ambient Temperature Ta (E )
Forward Voltage VF (V)
Collector Current vs. Collector-Emitter Voltage
Ta=25E 40 I F=30mA 1
Dark Current vs. Ambient Temperature
100
Collector Current vs. Ambient Temperature
Collector Current IC (mA)
I F=20mA 10 I F=10mA I F=5mA
Collector current IC (mA)
Dark Current ICEO (E )
0.1
30
I F=20mA I F=10mA PC(MAX.)
20
VCE=10V 0.01
1 I F=1mA
10
IF=5mA
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 VCE (V)
Ambient Temperature Ta (E )
Ambient Temperature Ta (E )
Response Time vs. Load Resistance
500 VCE=5V I C=2mA Ta=25E 100
Collector Current vs. Forward Current
Ta=25E VCE=10V
Switching Time Test Circuit
VIN R VCC RL VO
Response Time tr, tf (i s)
Collector Current IC (mA)
100
10
10
tr
tf
1
Test Circuit
0.1 Input 0.01 Output
10%
1
0.1
0.1
1.0
2.0
0.001 0.1
1
10
100
90%
tr
tf
Load Resistance RL (U )
Forward Current IF (mA)
Waveform
3/3

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