SFH620-3 Optocouple
SFH620-3 Optocouple
SFH620A is an AC Input based Phototransistor Output Optocoupler that offers high current transfer ratio, high isolation voltage as well as low coupling capacitance in a small 4 pin package. It is very useful to isolate two separate circuits but still making communication between the two using a safer way. By using this optocoupler, one can achieve more than 8mm creepage and clearance distances. It is available in two both DIP and SMD packages.
Pin Description of SFH620A Optocoupler
|
Pin Number |
Pin Name |
Description |
|
1 |
Anode |
Anode\Cathode pin of the two LEDs respectively |
|
2 |
Cathode |
Cathode\Anode pin of the two LEDs respectively |
|
3 |
Emitter |
Emitter pin of the phototransistor. |
|
4 |
Collector |
Collector pin of the phototransistor. |
Features and specification of SFH620A LED
- 5300 VRMS isolation Test voltage
- High Collector-Emitter Voltage VCEO = 70V
- Good CTR linearity depending on forward current
- CTR value: 100 to 320
- Forward Voltage: 1.25V (Typ), 1.65V (Max)
- Collector Current: 50mA
- Power Dissipation: 150mW
- Lead Spacing 0.100” (2.54mm) spacing

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