Overview
The FOD814A300W, produced by onsemi, is a part of the FOD814 series of 4-pin DIP phototransistor optocouplers. This device consists of two gallium arsenide infrared emitting diodes connected in inverse parallel, driving a silicon phototransistor output. This configuration is particularly useful for applications requiring AC input response and high isolation between the input and output circuits.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Storage Temperature | −55 to +150 | °C |
| Operating Temperature | −55 to +105 | °C |
| Junction Temperature | −55 to +125 | °C |
| Lead Solder Temperature | 260 for 10 s | °C |
| Total Device Power Dissipation | 200 | mW |
| Continuous Forward Current | ±50 | mA |
| Reverse Voltage | 6 | V |
| Collector-Emitter Voltage | 70 | V |
| Collector Power Dissipation | 150 | mW |
| Current Transfer Ratio (CTR) | 50–150% | % |
| Input-Output Isolation Voltage | 5000 VAC RMS for 1 minute | VAC RMS |
Key Features
- AC Input Response: The FOD814A300W is designed to handle AC inputs, making it suitable for applications where AC sensing is required.
- Current Transfer Ratio (CTR): The CTR for the FOD814A300W is between 50% and 150%, ensuring reliable signal transfer.
- High Isolation Voltage: The device offers an input-output isolation voltage of 5000 VAC RMS for 1 minute, ensuring safe electrical insulation.
- Safety and Regulatory Approvals: Compliant with UL1577 and DIN EN/IEC60747-5-5 standards.
- Pb-Free: The device is lead-free, making it environmentally friendly.
Applications
- AC Line Monitor: Suitable for monitoring AC lines in various electrical systems.
- Unknown Polarity DC Sensor: Can be used to detect DC signals regardless of polarity.
- Telephone Line Interface: Applicable in telephone line interfaces where isolation and signal integrity are crucial.
- Power Supply Regulators: Can be used in power supply regulators to ensure isolated feedback loops.
- Digital Logic Inputs and Microprocessor Inputs: Suitable for digital logic and microprocessor inputs where isolation is necessary.
Q & A
- What is the FOD814A300W used for? The FOD814A300W is used for applications requiring AC input response and high isolation between input and output circuits, such as AC line monitoring, unknown polarity DC sensing, and telephone line interfaces.
- What is the current transfer ratio (CTR) of the FOD814A300W? The CTR of the FOD814A300W is between 50% and 150%.
- What are the safety and regulatory approvals for the FOD814A300W? The device is compliant with UL1577 and DIN EN/IEC60747-5-5 standards.
- What is the maximum operating temperature for the FOD814A300W? The maximum operating temperature is +105°C.
- Is the FOD814A300W lead-free? Yes, the device is lead-free.
- What is the input-output isolation voltage of the FOD814A300W? The input-output isolation voltage is 5000 VAC RMS for 1 minute.
- What is the maximum collector power dissipation for the FOD814A300W? The maximum collector power dissipation is 150 mW.
- Can the FOD814A300W be used in digital logic applications? Yes, it can be used in digital logic and microprocessor inputs where isolation is necessary.
- What is the storage temperature range for the FOD814A300W? The storage temperature range is −55 to +150°C.
- How does the FOD814A300W handle AC inputs? The device is specifically designed to handle AC inputs, making it suitable for AC sensing applications.
