EL817C

The EL817C is an optocoupler, specifically a phototransistor optocoupler, designed to provide electrical isolation between its input and output while enabling signal transfer. It consists of a light-emitting diode (LED) and a phototransistor housed in a single package. When a current flows through the LED, it emits infrared light, which is detected by the phototransistor, allowing it to conduct.
Key features of the EL817C include a high isolation voltage (up to 5,000 V), a fast switching speed, and a wide range of operating temperatures. It typically supports various applications, including signal isolation in data communication, switching power supplies, and microcontroller interfacing.
The device is widely used in industrial, automotive, and consumer electronics due to its reliability and performance in isolating sensitive components from high-voltage circuits. The EL817C is available in various packages, making it versatile for different circuit layouts. Overall, it is a crucial component for ensuring safety and signal integrity in electronic systems.

The EL817C is an optocoupler, specifically a phototransistor optocoupler. Its key features include:
1. Isolation Voltage: It offers high voltage isolation of up to 5,000 V RMS, ensuring safety and protecting sensitive components from high voltages.
2. Transfer Ratio: It has a typical current transfer ratio (CTR) of 50% to 600%, depending on the input current, allowing for effective signal transmission.
3. Input/Output Configuration: The device consists of a GaAIAs infrared LED and a phototransistor, providing reliable optical coupling.
4. Operating Range: It operates over a wide temperature range from -40°C to +100°C, suitable for various environments.
5. Response Time: The EL817C features fast response times, typically in the microsecond range, making it suitable for high-speed applications.
6. Package Type: It is available in a compact 6-pin DIP package, which facilitates easy integration into circuits.
The EL817C is commonly used in switching power supplies, signal isolation, and data communication applications.

The EL817C is typically housed in a 4-pin DIP (Dual In-line Package) format. It is an optocoupler, which features a phototransistor output and is commonly used for signal isolation in various electronic applications.

The EL817C is an optocoupler, specifically a single-channel device, featuring a total of 4 pins. The pin configuration is as follows:
1. Anode (A): This pin connects to the anode of the internal LED (light-emitting diode).
2. Cathode (K): This pin connects to the cathode of the internal LED.
3. Collector (C): This pin is the output for the phototransistor, collecting the current generated by the LED when it is activated.
4. Emitter (E): This pin is the emitter of the phototransistor, allowing current to flow to ground when the LED is illuminated.
In operation, when a voltage is applied across the anode and cathode, the LED emits light, which activates the phototransistor, allowing current to flow from collector to emitter. This isolation allows for safe interfacing between high and low voltage circuits. The EL817C is commonly used in applications like signal isolation and data communication.

The EL817C is manufactured by Everlight Electronics Co., Ltd. Everlight is a leading global provider of optoelectronic components, specializing in light-emitting diodes (LEDs), infrared devices, and optocouplers like the EL817C. Founded in 1983 and headquartered in Taipei, Taiwan, Everlight operates with a focus on innovation, quality, and sustainability. The company serves various industries, including automotive, consumer electronics, telecommunications, and industrial applications. Everlight is recognized for its commitment to research and development, ensuring its products meet the evolving demands of the market.

The EL817C is an optocoupler used in various applications, such as signal isolation, data communication, power supply regulation, and relay driving. It is commonly employed in industrial automation, consumer electronics, automotive systems, and safety-critical designs to prevent high voltages from affecting low-voltage circuits. Additionally, it supports analog signal transmission and is utilized in feedback circuits for switching power supplies.

Equivalent products to the EL817C optocoupler include the PC817, 4N25, TLP-111, and HCPL-2601. These devices share similar characteristics, such as isolation voltage and input/output configurations, but always check specific datasheets for exact specifications and compatibility.