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Product Detailed Parameters
- Description：OPTOISO 1.5KV TRANS W/BASE 6-DIP
- Series：4N2X
- Mfr：Lite-On Inc.
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：1500Vrms
- Current Transfer Ratio (Min)：10% @ 10mA
- Current Transfer Ratio (Max)：-
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：3µs, 3µs
- Input Type：DC
- Output Type：Transistor with Base
- Voltage - Output (Max)：30V
- Current - Output / Channel：100mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：80 mA
- Vce Saturation (Max)：500mV
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Through Hole
- Package / Case：6-DIP (0.400", 10.16mm)
- Supplier Device Package：6-DIP
- Grade：-
- Qualification：-
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Overview
The 4N27M is a general-purpose phototransistor optocoupler manufactured by Lite-On Technology. It features a single channel with a DC input and a transistor output device that includes a base terminal for sensitivity control. The component provides a minimum isolation voltage of 1500 Vrms between the input and output circuits. It operates with a collector-emitter voltage of 30V and offers a current transfer ratio of 10%. The device is designed for standard through-hole mounting applications requiring electrical isolation.
Feature Summary
- Single-channel phototransistor output configuration
- Integrated base terminal for enhanced sensitivity adjustment
- High insulation voltage rating for circuit isolation
Applications
- General purpose signal isolation
- Industrial control systems
- Computer peripheral interfaces
Procurement Notes
Verify the manufacturer marking on the component body to confirm it reads LITE-ON or Lite-On Technology, as the 4N27 series is widely produced by multiple vendors including ON Semiconductor. Ensure the part number suffix matches exactly. Request the official datasheet from the specific supplier to confirm pinout compatibility and electrical specifications before integration into designs.
Selection Notes
Select this component when a low-cost, general-purpose optocoupler with a base-controlled phototransistor is required. The built-in base allows for faster switching speeds compared to uncontrolled variants. Consider the 1500 Vrms isolation rating for safety requirements. Verify that the 30V collector-emitter voltage meets the load requirements of the target application circuit.
Part Context
The 4N27M belongs to the 4N2x series of 6-pin general-purpose phototransistor optocouplers. This family includes related parts such as the 4N25M, 4N26M, and 4N28M, which share similar physical packages and basic operational principles but may differ in specific electrical characteristics like current transfer ratio or switching speed.
Replacement Considerations
Direct substitutes include other manufacturers' versions of the 4N27M, such as those from ON Semiconductor or Vishay. When replacing, ensure the replacement part maintains the same 6-pin DIP package and pinout configuration to fit existing PCB layouts without modification.
