The PC817 DIP-4 Transistor Output Optocoupler is a widely used 4-pin optical isolator designed to safely bridge electrical signals between two isolated circuits using light. 50% to 600% (at I_F = 5mA).
The PC817 DIP-4 Transistor Output Optocoupler is a widely used 4-pin optical isolator designed to safely bridge electrical signals between two isolated circuits using light. It consists of an infrared light-emitting diode (LED) on the input side, optically coupled to a phototransistor on the output side, all housed within a standard 4-pin Dual In-line Package (DIP-4).
By electrically separating the input logic control side (such as a 3.3V or 5V microcontroller) from high-voltage DC or AC output loads, the PC817 effectively prevents ground loops, high-voltage surges, and electrical noise from reaching sensitive digital components. It features a high isolation voltage rating of up to 5000V RMS and provides dependable switching performance.
It is compatible with Arduino, ESP32, Raspberry Pi, relay modules, switching mode power supply (SMPS) feedback loops, PLC interfaces, and general embedded DIY electronic systems.
| Type | Single-Channel Phototransistor Output Optocoupler / Optoisolator |
|---|---|
| Model | PC817 (PC817X / EL817) |
| Package Type | DIP-4 (Through-Hole, 4-Pin) |
| Current Transfer Ratio (CTR) | 50% to 600% (at I_F = 5mA) |
Is it compatible with Arduino and ESP32?
Yes. It works with Arduino, ESP32, Raspberry Pi, STM32 projects.
Can I buy the PC817 DIP-4 Transistor Output Optocoupler in Kanpur?
Yes – buy online with delivery across India, or pick it up from the iTechBuilders store, Damodar Nagar, Kanpur.
