H11L1-V

The H11L1-V is an optocoupler manufactured by Everlight Electronics Co., Ltd. It is designed to provide electrical isolation between its input and output while allowing for signal transmission. This component is particularly useful in applications where it is necessary to separate different parts of a circuit to prevent high voltages from affecting sensitive components.

Key Features:

1. Isolation Voltage: The H11L1-V typically offers a high isolation voltage, often rated at 5,000 Vrms, which ensures that the input and output sides are electrically isolated from each other. This is crucial for protecting sensitive components from voltage spikes.

2. Input Configuration: The input side of the H11L1-V consists of an infrared LED. When current flows through the LED, it emits infrared light, which is the basis for the optocoupling mechanism. The forward voltage drop of the LED is usually around 1.2V to 1.5V, and it requires a specific forward current to operate effectively.

3. Output Configuration: The output side features a phototransistor that is sensitive to the infrared light emitted by the LED. When the LED is activated, the phototransistor conducts, allowing current to flow through the output circuit. The output can typically handle a collector-emitter voltage of up to 30V.

4. Transfer Characteristics: The H11L1-V has a defined current transfer ratio (CTR), which indicates the efficiency of the optocoupler in transferring input current to output current. This ratio can vary based on the specific conditions of the circuit, such as temperature and load.

5. Package Type: The H11L1-V is usually available in a compact DIP (Dual In-line Package) form factor, which makes it easy to integrate into various circuit designs. The package is designed for through-hole mounting, providing stability and ease of handling during assembly.

6. Temperature Range: The device is rated for operation over a wide temperature range, typically from -40°C to +100°C, making it suitable for various industrial and consumer applications.

Applications:

The H11L1-V is commonly used in:

• Signal Isolation: Protecting sensitive components in microcontroller and digital circuit applications.
• Switching Power Supplies: Providing feedback and control signals while maintaining isolation.
• Data Communication: Ensuring safe transmission of signals in communication systems.
• Industrial Automation: Isolating control signals in automation systems to protect against electrical noise and surges.

Conclusion:

The H11L1-V from Everlight Electronics Co., Ltd. is a versatile optocoupler that combines high isolation voltage, efficient signal transfer, and a compact design, making it an ideal choice for a wide range of electronic applications requiring electrical isolation. Its robust performance and reliability make it a popular component in both consumer and industrial electronics.