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Product Detailed Parameters
- Description：OPTOISOLATOR 3.75KV 1CH TRANS
- Series：-
- Mfr：Isocom Components 2004 LTD
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：150% @ 5mA
- Current Transfer Ratio (Max)：300% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：5µs, 3µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：80V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：60 mA
- Vce Saturation (Max)：200mV
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：4-SOIC (0.173", 4.40mm Width)
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The IS281F is a single-channel optocoupler manufactured by Isocom Components 2004 LTD. It features a phototransistor output and utilizes an SOP-4 surface-mount package with four pins. The device provides an isolation voltage of 3750 Vrms and supports a collector current of 50 mA. It exhibits a minimum current transfer ratio of 150% at standard test conditions. The component is RoHS compliant and free from SVHC substances as of June 2024.
Feature Summary
- Provides high-voltage electrical isolation between input and output circuits
- Utilizes a compact surface-mount package for automated assembly
- Features a phototransistor output stage for digital signal transmission
Applications
- General-purpose signal isolation in industrial control systems
- Input/output interface isolation in consumer electronics
- Microcontroller peripheral protection in embedded designs
Procurement Notes
Verify the specific suffix designation against the manufacturer's latest datasheet to confirm pinout compatibility and performance specifications. Ensure that the procurement source provides original manufacturer documentation or authorized distributor certification to guarantee component authenticity and traceability throughout the supply chain.
Selection Notes
Select this component when a single-channel isolation barrier is required within a limited board area. The SOP-4 footprint suits applications where space constraints preclude larger DIP packages. Confirm that the 50 mA collector current rating meets the load requirements of the downstream circuitry before finalizing the design integration.
Part Context
Isocom Components 2004 LTD specializes in infrared optoelectronic devices, maintaining a legacy dating back to the Litronix era. The company focuses on providing alternative sources for established optocoupler standards. This series represents their commitment to offering reliable isolation solutions for commercial and industrial markets through specialized manufacturing processes.
Replacement Considerations
Cross-reference with other single-channel transistor-output optocouplers in SOP-4 packages. Verify matching isolation voltage ratings and current transfer ratios to ensure functional equivalence in existing circuit layouts without requiring schematic modifications.
