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Photocoupler
PC-18T1 * PC-18T2 * PC-18T4
These Photocouplers cosist of a Gallium Arsenide Infrared Emitting Diode and a Silicon NPN Photo Darlington transistor perachannel. The PC-18T1 has one channel in a 4-pin package. The PC-18T2 has two channels in a 8-pin package. The PC-18T4 has four channels in a 16-pin package.
FEATURES
* Small Package Size * Collector-Emitter Voltage : Min.30V * Current Transfer Ratio : Type 1000% (at IF=1mA, VCE=2V) * Electrical Isolation Voltage : AC2500Vrms * UL Recognized File No. E107486
APPLICATIONS
* Interface between two circuits of different potential * Telephone Line Receiver * Automatic Vending Machine * Power Supply Regulators
DIMENSION
PC18T1
4
0.25
(Unit : mm)
PC18T2
3
0.25
8
7
6
5
6.5
6.5
1
Orientation Mark
2
Orientation Mark
1
2
3
4
7.62 4.6 3.5 0.25 0.25
0.25 6.5 3.5 0.25
9.7
0.25
7.62 0.25 6.5
0.51Min.
2.5Min.
0.25
0 ~15
0.51Min.
2.5Min.
0.25
0 ~15
0.5 1.2 2.54 0.25
0.5 1.2 2.54 0.25
PC18T4
16
0.25
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
0.5 1.2 2.54 0.25
1/3
Photocoupler
PC-18T1 * PC-18T2 * PC-18T4
MAXIMUM RATINGS Parameter
Forward Current Reverse Voltage Input Peak Forward Current*1 Power Dissipation Junction Temperature Collector-Emitter Breakdown Voltage Emitter-Collector Breakdown Voltage Collector Current Collector Power Dissipation Input to Output Isolation Voltage*2 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
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 AC2500 -55~+125 -30~+100 260 250
(Ta=25E ) Unit
mA V A mW E V V mA mW V rms E E E mW
Output
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 Collector-Emitter Saturation Voltage Coupled Input-Output Capacitance Input-Output Isolation Resistance Rise Time Fall Time
*4. CTR=(IC/IF) X 100 (%)
(Ta=25E , unless otherwisenoted) 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=100 IC=10mA Min. 30 5 300 Typ. 1.15 30 10 0.85 1 1011 100 100 Max. 1.30 10 100 600 1.0 Unit. V E pF V V nA pF % V pF U A A
2/3
Photocoupler
PC-18T1 * PC-18T2 * PC-18T4
Forward Current vs. Ambient Temperature
50
Collector Power Dissipation vs. Ambient Temperature
250
Forward Current vs. Forward Voltage
140
Collector Power Dissipation P C (mW)
Forward Current I F (mA)
40
200
Forward Current IF (mA)
120 100
30
150
Ta=70E
80 60
20
100
Ta=25E
40
10
50
Ta=-55E
20 0 0.4 0.8 1.2 1.6 2.0
0 -20
0
20
40
60
80
100
0 -20
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
Dark Current vs. Ambient Temperature
100
Collector Current vs. Forward Current
Collector Current IC (mA)
60 50 40 30 20 10 0 100
Ta=25E
Ta=25E VCE =2V
Collector Current IC (mA)
Dark Current I CEO (uA)
40
IF=3mA IF=2.5mA
1
30
IF=2mA IF=1.5mA PC(max.)
VCE =24V
0.1
20
IF=1mA
10
0.01
VCE =10V
IF=0.5mA
0
2
4
6
8
10
0.001 0 20 40 60
80
~
1
3
5
7
9
11
Collector-Emitter Voltage V CE (V)
Ambient Temperature Ta (E)
Forward Current I F (mA)
Response Time vs. Load Resistance
5000
VCC Switching Time Test Circuit 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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