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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 (0.300", 7.62mm)
- Supplier Device Package：6-DIP
- Grade：-
- Qualification：-
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Overview
The Lite-On 4N27 is a general-purpose single-channel transistor output optocoupler housed in a six-pin DIP package. It features an NPN phototransistor output with a minimum current transfer ratio of 10% at a forward current of 10mA and collector-emitter voltage of 10V. The device provides an isolation voltage of 5000 Vrms or 1500V depending on the specific certification variant, with a maximum collector-emitter voltage of 80V. Typical response times are 3 microseconds for both rise and fall. Operating temperature ranges from -55°C to +110°C.
Feature Summary
- High current transfer ratio ensuring reliable signal transmission
- Fast response time suitable for digital switching applications
- Wide operating temperature range for industrial environments
Applications
- Computer input/output interface circuits
- Solid-state relay driver circuits
- Isolation of control signals in power supplies
Procurement Notes
Verify manufacturer origin as multiple entities produce this part number. Confirm specific insulation voltage rating (5kV vs 1.5kV) required by your design. Check RoHS compliance status and lead times due to potential end-of-life notices from certain manufacturers. Ensure package type matches PCB footprint requirements.
Selection Notes
Select based on required isolation voltage and current transfer ratio stability. Consider thermal management if operating near maximum junction temperature limits. Verify that the forward voltage drop aligns with available drive voltage. Compare response speeds against circuit frequency requirements to ensure adequate signal integrity.
Part Context
The 4N27 belongs to a family of general-purpose photocouplers including the 4N25, 4N26, and 4N28 series. These components are widely used for basic electrical isolation tasks. They are approved by major safety organizations including UL, TUV, and CSA, facilitating global product certification.
Replacement Considerations
Direct substitutes include the 4N28 which shares similar characteristics but may have different CTR specifications. Other compatible options involve checking equivalent transistor output optocouplers from Vishay or Everlight with matching DIP-6 packaging and electrical ratings.
