4N46 datasheet by Avago Technologies

4N46 Frequently Asked Questions (FAQs)

• What is the recommended operating temperature range for the 4N46?
  The recommended operating temperature range for the 4N46 is -40°C to 100°C.
• How do I ensure reliable operation of the 4N46 in high-temperature environments?
  To ensure reliable operation in high-temperature environments, it is recommended to derate the device's current and voltage ratings according to the temperature derating curve provided in the datasheet.
• What is the maximum allowable voltage for the 4N46?
  The maximum allowable voltage for the 4N46 is 80V, but it is recommended to operate the device at a voltage below 60V to ensure reliable operation.
• How do I choose the correct resistor value for the input LED of the 4N46?
  The correct resistor value for the input LED of the 4N46 can be calculated using the formula: R = (Vcc - Vf) / If, where Vcc is the supply voltage, Vf is the forward voltage of the LED, and If is the desired forward current.
• What is the typical current transfer ratio (CTR) of the 4N46?
  The typical current transfer ratio (CTR) of the 4N46 is 100%, but it can vary from 50% to 200% depending on the specific device and operating conditions.