EL817(B)-F

The EL817(B)-F is a phototransistor optocoupler, commonly used for isolating different sections of a circuit to prevent high voltages from affecting the system receiving the signal. It consists of an infrared LED and a phototransistor, which are optically coupled. When the LED is activated, it emits infrared light that is detected by the phototransistor, allowing it to conduct current proportionally.
Key specifications include a wide operating temperature range, high isolation voltage, and low input current requirement. This optocoupler is used in applications such as power supply circuits, microprocessor input/output isolation, and signal transmission between circuits with different voltage potentials. Its small package size makes it suitable for compact electronic designs.
The EL817(B)-F offers reliable performance, good noise immunity, and is available in various CTR (Current Transfer Ratio) bins to match specific application needs. It is favored for its efficiency in providing electrical isolation while maintaining signal integrity.

The EL817(B)-F is a phototransistor optocoupler. Equivalent products include:
1. PC817 series by Sharp or Lite-On
2. LTV-817 series by Lite-On
3. TLP521 series by Toshiba
4. SFH617A series by Vishay
5. 4N25 series by Vishay or Fairchild
These alternatives offer similar isolation voltage and current transfer ratio, making them suitable substitutes for various applications. Always verify specific parameters to ensure compatibility with your design.

The EL817(B)-F is an optocoupler, which is a component used to transfer electrical signals using light waves to provide isolation between its input and output. Here are some of its key features:
1. Isolation Voltage: Offers a significant isolation voltage, typically up to 5000 Vrms, providing effective isolation between input and output.
2. Compact Package: Comes in a small, standard 4-pin DIP (Dual In-line Package), making it suitable for space-constrained applications.
3. High CTR (Current Transfer Ratio): Depending on the bin, it can achieve various CTR values, making it versatile for different signal requirements.
4. Wide Operating Temperature Range: Functions reliably across a broad temperature range, typically from -30°C to +100°C.
5. Low Input Current Requirement: Requires a low input current, making it energy efficient.
6. Applications: Commonly used in applications such as signal isolation, data communication, and switching power supplies.
These features make the EL817(B)-F a popular choice for applications demanding reliable isolation and signal integrity.

The EL817(B)-F is a phototransistor optocoupler, typically used for isolating electrical circuits. It comes in a 4-pin DIP package. Here is the pin configuration and function:
1. Pin 1: Anode (A) - This is the anode terminal of the infrared emitting diode (IR LED) inside the optocoupler. It is the positive side where current enters the diode.
2. Pin 2: Cathode (K) - This is the cathode terminal of the IR LED. It is the negative side where current exits the diode.
3. Pin 3: Emitter (E) - This is the emitter terminal of the phototransistor. It is typically connected to the ground or a low potential point of the output circuit.
4. Pin 4: Collector (C) - This is the collector terminal of the phototransistor. It is usually connected to the positive supply or a load in the output circuit.
The primary function of the EL817(B)-F is to provide electrical isolation between input and output, allowing signal transmission without direct electrical connection. It effectively isolates high-voltage and low-voltage circuits, enhancing safety and protecting sensitive components.

The EL817(B)-F is manufactured by Everlight Electronics Co., Ltd. Everlight is a Taiwanese company known for producing optoelectronic components. Founded in 1983, Everlight has established itself as a significant player in the LED and optoelectronics industry. The company specializes in the development and manufacture of a wide range of products, including LEDs, infrared components, optocouplers, and other related technologies. Everlight's products are used in various applications, such as consumer electronics, automotive lighting, backlight, signage, and industrial lighting systems. The company is recognized for its commitment to innovation, quality, and sustainability in the optoelectronic sector.

The EL817(B)-F is a phototransistor optocoupler, which is primarily used in applications requiring electrical isolation and signal transmission. Key application areas include:
1. Switching Power Supplies: Provides isolation and feedback in power supply circuits.
2. Microprocessor System Interfaces: Ensures signal isolation between microcontrollers and peripheral devices.
3. Industrial Automation: Used in control circuits to isolate different sections.
4. Telecommunications: Helps in isolating different communication circuit sections.
5. Consumer Electronics: Protects circuits within devices such as TVs and audio equipment.
6. Office Equipment: Used in printers and copiers for signal isolation.
These applications leverage the EL817(B)-F's ability to transmit signals while maintaining electrical isolation.

The EL817(B)-F is an optocoupler, typically housed in a 4-pin DIP (Dual Inline Package) package. This configuration is commonly used for isolating different sections of electronic circuits.