ST Vactrol LCR-0202 Cross 4Pins Dip Photo Conductive Analog Linear Optocoupler WDYJ-0202 With Forward Voltage 2.5V
ST Vactrol LCR-0202 Cross 4Pins Dip Photo Conductive Analog Linear Optocoupler WDYJ-0202 With Forward Voltage 2.5V
Structure Diagram (Unit:mm Tolerance: ±0.1)
Electrical Optical Characteristics Ta=25℃
LED
| Parameter | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
| Forward Current | IF | 20 | mA | |||
| Forward Voltage | VF | IF=20mA | 1.9 | 2.0 | 2.5 | V |
| Reverse Current | IR | VR=4V | 10 | μA |
CELL
| Parameter | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
| Maximum Cell Voltage | VC | (Peak AC or DC) | 60 | V | ||
| Power Dissipation | PD | Derate linearly to 0 at 75°C | 50 | mW |
COUPLED
| Parameter | Test Conditions | On Resistance (RON) / KΩ | Off Resistance (ROFF)※2 /MΩ | ||
| Min. | Typ. | Max. | |||
| WDYJ-0202RA | IF=1mA※1 | 0.7 | 1 | ||
| WDYJ-0202RB | IF=1mA※1 | 0.65 | 1.1 | 1 | |
| WDYJ-0202RC | IF=1mA※1 | 1.05 | 1.56 | 1 | |
| WDYJ-0202RC1 | IF=1mA※1 | 0.8 | 1.5 | 200 | |
| WDYJ-0202RD | IF=1mA※1 | 1.48 | 2.6 | 1 | |
| WDYJ-0202RD1 | IF=1mA※1 | 1.48 | 2.5 | 200 | |
| WDYJ-0202RE | IF=1mA※1 | 2.5 | 5 | 2 | |
| WDYJ-0202RG | IF=1mA※1 | 5 | 10 | 2 | |
| WDYJ-0202RH | IF=1mA※1 | 10 | 20 | 30 | |
| WDYJ-0202RI | IF=1mA※1 | 20 | 40 | 10 | |
| Rise Time(TR) | Time to 63% of final conductance @ IF= 20mA | 3.5 | msec | ||
| Fall Time(TF) | Time to 100K after removal of IF = 20mA | 500 | msec | ||
| Cell Temp Coefficient | IF > 5 mA | 0.7 | %/°C | ||
※1 measured after a dark history of one week
※2 10 sec after IF=0.5V dc on cell
Application
Audio amplifier protection and control
Audio volume limiting
Electric shielded isolation coupling
Lights adjustment and Motor speed control
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Description
Analog Linear Optical Coupling is photoelectric component by inputting the different current to control the changes of resistance. It makes use of CdS and LED semi-conductor with rigorous selection, aging and test. The product is widely used by current input control and pure resistance with non-polarity output. Our company own the patent of manufacturing and the patent number is ZL02225334.3.
Characteristics
1. Pure resistor and non-polarity output .
2. Wide range of analog linear resistance, the low “on”resistance, high “off”resistance.
3. Simple circuit configuration suitable for DC and AC use.
4. Input to output isolation, and low distortion coupling.
5. Encapsulation with PPO high-temperature resistant material.
Main characteristic curve
Attention : Soldering pin recommended away from the bottom of optocoupler, soldering time should be as short as possible.
Basic application and testing circuit
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