PC817 / EL817 4-Pin DIP Phototransistor Optocoupler
Prices updated: 12 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Makers ElectronicsCheapest | PC817 Photocoupler 80V 50mA IC DIP-4 | 1.75 EGP | View in store |
 Microohm | PC817 EL817 4pin DIP package Photo Coupler. | 1.75 EGP3 | View in store |
 UGE | PC817 OptoCoupler Optoisolator DIP IC EL817 | 6 EGP | View in store |
Price history
Lowest daily price, last 90 days
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Lowest price recorded: 1.75 EGP
About this product
A 4-pin DIP optocoupler with an infrared LED input and a phototransistor output, sold as PC817 or EL817. It passes a signal across an electrical isolation barrier, which protects microcontrollers from high-voltage or noisy circuits in switching and feedback designs. Verify the chip marking against the datasheet before use.
Specifications
- Package
- DIP-4
- Output type
- Phototransistor
- Input type
- Infrared LED
- Isolation voltage
- 5000 Vrms (PC817 datasheet)
Frequently asked questions
What is the price of PC817 / EL817 4-Pin DIP Phototransistor Optocoupler in Egypt?
PC817 / EL817 4-Pin DIP Phototransistor Optocoupler currently costs between 1.75 and 6 EGP across 3 offers in Egypt.
Where can I buy PC817 / EL817 4-Pin DIP Phototransistor Optocoupler in Egypt?
PC817 / EL817 4-Pin DIP Phototransistor Optocoupler is available from Makers Electronics, Microohm, and UGE. Compare the offers above to find the best price.
How do I wire PC817 to a 3.3V microcontroller?
Drive the LED side through a series current-limiting resistor sized from the datasheet. On the output side, use a pull-up resistor to the microcontroller supply and read the collector node. Check the transfer ratio you need, since it varies by grade.
Why does the listing say to verify markings?
Relabelled and clone parts exist in the market. PC817 and EL817 share the same pinout, but you should compare the printed marking with the datasheet to confirm the part you received.
