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Photocoupler
PC-18K1 * PC-18K2 * PC-18K4
These Photocouplers cosist of a Gallium Arsenide Infrared Emitting Diode and a Silicon NPN Photo Darlington transistor perachannel. The PC-18K1 has one channel in a 4-pin package. The PC-18K2 has two channels in a 8-pin package. The PC-18K4 has four channels in a 16-pin package.
FEATURES
* Small Package Size * Collector-Emitter Voltage : Min.30V * Current Transfer Ratio : Type 600% (at IF=1mA, VCE=2V) * Electrical Isolation Voltage : AC5000Vrms * UL Recognized File No. E107486
APPLICATIONS
* Interface between two circuits of different potential * Telephone Line Receiver * Automatic Vending Machine * Relay Contact Monitor
DIMENSION
PC18K1
4 0.25 3
8
(Unit : mm) PC18K2
7 6 5
6.5
1 Orientation Mark
2
1 Orientation Mark 2
7.62 0.25 6.5
6.5
0.25
3
4
7.62
0.25
4.6 0.25
0.25
6.5
9.7
0.25
3.5
3.5 0.25
2.5Min.
0.51Min.
0.51Min.
2.5Min.
0.25
0 ~15
0.25
0 ~15
0.5 1.2 2.54 0.25
0.5 1.2 2.54 0.25
PC18K4
0.25
16
15
14
13
12
11
10
9
6.5
1
Orientation Mark
2
3
4
5
6
7
8
19.8 0.25
0.25
7.62 0.25 6.5
3.5
0.51Min.
2.5Min.
0.25
0.5 1.2 2.54 0.25
0 ~15
1/3
Photocoupler
PC-18K1 * PC-18K2 * PC-18K4
MAXIMUM RATINGS Parameter
Forward Current Reverse Voltage Input Peak Forward Current Power Dissipation Junction Temperature Collector-Emitter Breakdown Voltage Emitter-Collector Breakdown Voltage Collector Current Collector Power Dissipation Input to Output Isolation Voltage Storage Temperature Operating Temperature Lead Soldering Temperature Total Power Dissipation
*3 *2 *1
Symbol
IF VR IFP PD TJ BVCEO BVECO IC PC Viso Tstg Topr Tsol Ptot
Rating
60 5 1 150 125 30 5 50 150 AC5000 -55~+125 -30~+100 260 250
(Ta=25E ) Unit
mA V A mW E V V mA mW Vrms E E E mW
Output
*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
ELECTRO-OPTICAL CHARACTERISTICS
Parameter Forward Voltage Input Reverse Current Capacitance Collector-Emitter Breakdown Voltage Output Emitter-Collector Breakdown Voltage Collector Dark Current Capacitance Current Transfer Ratio
*4
(Ta=25E, unless otherwise noted)
Symbol VF IR CT BVCEO BVECO ICEO CCE CTR VCE(SAT) CIO RIO tr tf Condition IF=10mA VR=5V V=0, f=1kHz IC=0.5mA IE=0.1mA IF=0, VCE=10V VCE=0, f=1KHz IF=1mA, VCE=2V IF=1mA, IC=2mA V=0, f=1kHz RH=40~60%, V=500V VCE=10V, RL=100U IC=10mA Min. 35 5 300 Typ. 1.15 30 10 0.85 1 10
11
Max. 1.30 10 100 1500 1.0 -
Unit. V E 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 (%)
100 100
2/3
Photocoupler
PC-18K1 * PC-18K2 * PC-18K4
Forward Current vs. Ambient Temperature
Forward Current IF (mA)
50
Collector Power Dissipation vs. Ambient Temperature
Collector Power Dissipation PC (mW)
250
Forward Current vs. Forward Voltage
Forward Current IF (mA)
140 120 100
Ta=70E
40
200
30
150
80 60 40
Ta=-55E Ta=25E
20
100
10 0 -20
50 0 -20
20 0 0.4 0.8 1.2 1.6 2.0
0
20
40
60
80
100
0
20
40
60
80
100
Ambient Temperature Ta (E)
Ambient Temperature Ta (E)
Forward Voltage VF(V)
Collector Current vs. Collector-Emitter Voltage
10
Ta=25E
Dark Current vs. Ambient Temperature
100
Collector Current vs. Forward Current
Collector Current IC (mA)
Ta=25E 60 VCE=2V
Collector Current IC (mA)
40
IF=3mA IF=2.5mA
Dark Current ICEO (uA)
1
30
IF=2mA IF=1.5mA PC(max.)
VCE=24V
0.1
20
IF=1mA
0.01
VCE=10V
10
IF=0.5mA
0
2
4
6
8
10
0.001 0
~
50 40 30 20 10 0
20
40
60
80
100
1
3
5
7
9
11
Collector-Emitter Voltage VCE (V)
Ambient Temperature Ta (E)
Forward Current IF (mA)
Response Time vs. Load Resistance
5000
Switching Time Test Circuit
VCC RL VIN R VO
Response Time tr, tf (us)
1000
VCE=10V IC=10mA Ta=25E
tr 100 tf
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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