Overview
The FOD814A300, produced by onsemi, is a 4-pin DIP phototransistor optocoupler. It consists of two gallium arsenide infrared emitting diodes connected in inverse parallel, driving a silicon phototransistor output. This configuration allows for AC input response, making it suitable for various applications requiring isolation and signal transfer between different voltage levels.
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 |
| Continuous Forward Current (Emitter) | ±50 | mA |
| Reverse Voltage (Emitter) | 6 | V |
| Collector-Emitter Voltage (Detector) | 70 | V |
| Current Transfer Ratio (CTR) | 50–150% | |
| Input-Output Isolation Voltage | 5000 VACRMS for 1 minute | |
| Insulation Resistance | > 10^11 Ω |
Key Features
- AC Input Response: The FOD814A300 is designed to handle AC inputs, making it ideal for applications such as AC line monitoring and unknown polarity DC sensing.
- Current Transfer Ratio (CTR): The CTR for the FOD814A300 is between 50% and 150%, ensuring reliable signal transfer.
- Safety and Regulatory Approvals: Compliant with UL1577 and DIN EN/IEC60747-5-5, ensuring safe electrical insulation.
- Pb-Free: The device is lead-free, adhering to environmental regulations.
- Minimum BVCEO of 70 V Guaranteed: Ensures high collector-emitter breakdown voltage.
Applications
- AC Line Monitor: Suitable for monitoring AC power lines due to its AC input response capability.
- Unknown Polarity DC Sensor: Can be used to sense DC signals without regard to polarity.
- Telephone Line Interface: Used in telephone line interfaces for signal isolation and transfer.
- Power Supply Regulators: Can be used in power supply regulators for isolation and control.
- Digital Logic Inputs and Microprocessor Inputs: Suitable for use in digital logic circuits and microprocessor inputs where isolation is required.
Q & A
- What is the FOD814A300 composed of?
The FOD814A300 consists of two gallium arsenide infrared emitting diodes connected in inverse parallel, driving a silicon phototransistor output. - What is the operating temperature range of the FOD814A300?
The operating temperature range is −55 to +105 °C. - What is the current transfer ratio (CTR) of the FOD814A300?
The CTR is between 50% and 150%. - Is the FOD814A300 Pb-free?
Yes, the device is lead-free. - What are the safety and regulatory approvals for the FOD814A300?
It is compliant with UL1577 and DIN EN/IEC60747-5-5. - What is the minimum BVCEO guaranteed for the FOD814A300?
The minimum BVCEO is 70 V. - What are some typical applications of the FOD814A300?
Typical applications include AC line monitoring, unknown polarity DC sensing, telephone line interfaces, power supply regulators, and digital logic inputs. - What is the input-output isolation voltage of the FOD814A300?
The input-output isolation voltage is 5000 VACRMS for 1 minute. - What is the insulation resistance of the FOD814A300?
The insulation resistance is greater than 10^11 Ω. - What is the collector-emitter voltage (VCEO) of the FOD814A300?
The VCEO is 70 V.
