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Product Detailed Parameters
- Description：OPTOISO 5.3KV 1CH TRANS W/BASE
- Series：4N25
- Mfr：Isocom Components 2004 LTD
- Package：Tape & Reel (TR)
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Current Transfer Ratio (Min)：20% @ 10mA
- Current Transfer Ratio (Max)：-
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：2µs, 2µs
- Input Type：DC
- Output Type：Transistor with Base
- Voltage - Output (Max)：30V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：60 mA
- Vce Saturation (Max)：500mV
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：6-SMD, Gull Wing
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The 4N25SMT&R is a surface-mount transistor output optocoupler manufactured by Isocom Components 2004 LTD. It features one channel with a DC input and transistor output configuration housed in a 6-pin SMD DIP package. The device provides an isolation voltage of 7.5 kV (or 5300 Vrms per some sources) and supports a maximum forward current of 60 mA. It exhibits a minimum current transfer ratio of 20% and operates within a temperature range of -55°C to 100°C.
Feature Summary
- Provides electrical isolation between input and output circuits using infrared light transmission.
- Features a transistor output stage suitable for digital signal switching applications.
- Designed for surface-mount technology integration into compact electronic assemblies.
Applications
- Industrial control systems requiring signal isolation
- Power supply feedback loops
- Communication interface isolation
Procurement Notes
Verify the specific datasheet version for the exact isolation rating, as sources cite both 7.5 kV and 5300 Vrms. Confirm the package type matches the required PCB footprint for the 6-pin SMD DIP configuration. Ensure the operating temperature range aligns with the target application environment. Cross-reference the current transfer ratio specifications against circuit requirements.
Selection Notes
Select this component when a surface-mount solution for single-channel isolation is required. Consider the 60 mA forward current limit and transistor output characteristics. Evaluate the thermal performance within the specified temperature range. Compare the isolation voltage ratings against system safety standards. Assess the physical dimensions for compatibility with existing board layouts.
Part Context
Isocom Components 2004 LTD specializes in infrared optoelectronic devices, offering alternatives to standard industry components. The 4N25SMT&R belongs to their portfolio of high-performance optocouplers designed for commercial and industrial markets. The company emphasizes flexible manufacturing and adherence to global industry standards for these devices.
Replacement Considerations
Direct replacements should be sought from manufacturers offering equivalent 6-pin SMD transistor output optocouplers with similar isolation and current ratings. Verify pinout compatibility and package dimensions before substitution. Check if alternative parts meet the same thermal and electrical specifications.
