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Product Detailed Parameters
- Description：6PIN DARLINGTON OUTPUT, NON-BASE
- Series：-
- Mfr：Isocom Components 2004 LTD
- Package：Tube
- Number of Channels：-
- Voltage - Isolation：-
- Current Transfer Ratio (Min)：-
- Current Transfer Ratio (Max)：-
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：-
- Input Type：-
- Output Type：-
- Voltage - Output (Max)：-
- Current - Output / Channel：-
- Voltage - Forward (Vf) (Typ)：-
- Current - DC Forward (If) (Max)：-
- Vce Saturation (Max)：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The 4N31FG is a single-channel optocoupler manufactured by Isocom Components 2004 LTD. It features a Darlington transistor output configuration and utilizes a non-base lead design within a 6-pin DIP package. The device provides high isolation voltage of 5300Vrms, ensuring robust signal transmission between isolated circuits. As an infrared optoelectronic device, it serves as a replacement for standard industry components, offering specialized parameter selection to meet specific circuit requirements.
Feature Summary
- Darlington transistor output configuration for high gain
- Non-base lead design simplifies circuit integration
- High isolation voltage capability for safety
- Infrared LED input with phototransistor output
Applications
- Signal isolation in industrial control systems
- Power supply feedback loops
- Microcontroller interface circuits
- Solid-state relay driver applications
Procurement Notes
Verify the manufacturer designation matches Isocom Components 2004 LTD exactly. Confirm the package type is 6-pin DIP and the output is Darlington. Check for any specific ordering suffixes that may indicate tape and reel availability or variant differences. Ensure the component meets the required isolation voltage specifications for your application safety standards.
Selection Notes
Select this component when high current transfer ratio is needed due to the Darlington output structure. Consider the non-base lead feature if external base drive is not desired. Verify compatibility with the system's isolation voltage requirements, noting the 5300Vrms rating. Compare against original equipment manufacturer specifications to ensure pinout and electrical characteristics align with the existing design.
Part Context
Isocom Components specializes in high-performance infrared optoelectronic devices, including optocouplers and optoswitches. The company positions its products as direct replacements for common commercial optocoupler types, often providing parts no longer available from other manufacturers. Their manufacturing process allows for flexible packaging options and specialized parameter selection to meet diverse customer circuit design needs.
Replacement Considerations
This part is designed as a replacement for standard 4N31-type optocouplers. Verify pinout compatibility and electrical parameters such as current transfer ratio and isolation voltage against the original component datasheet before substitution.
