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Product Detailed Parameters
- Description：OPTOISOLATOR 3.75KV 4CH TRANS
- Series：-
- Mfr：Isocom Components 2004 LTD
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Channels：4
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：100% @ 5mA
- Current Transfer Ratio (Max)：600% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：3µs, 4µs
- 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)：50 mA
- Vce Saturation (Max)：400mV
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.173", 4.40mm Width)
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The IS281-4GB is a quad-channel optocoupler manufactured by Isocom Components. It features four independent phototransistor outputs driven by infrared LEDs, providing electrical isolation between input and output circuits. The device offers a high isolation voltage of 3750Vrms, ensuring robust protection against voltage spikes and noise interference in sensitive electronic systems. Designed for surface-mount applications, it utilizes a compact 16-pin package to facilitate automated assembly and space-constrained PCB layouts.
Feature Summary
- Provides galvanic isolation through four independent channels
- Utilizes phototransistor output configuration for signal transmission
- Engineered for surface-mount technology (SMT) integration
Applications
- Industrial control systems requiring multi-channel isolation
- Data communication interfaces with high noise immunity needs
- Power supply feedback loops for circuit protection
Procurement Notes
Verify the specific suffix 'GB' against official manufacturer documentation to confirm exact pinout, tape-and-reel specifications, and compliance certifications. Ensure that the requested component matches the precise surface-mount package dimensions and thermal characteristics defined in the datasheet before finalizing procurement orders.
Selection Notes
Select this component when designing circuits that require simultaneous isolation across multiple signal lines within a limited board area. Consider the 3750Vrms isolation rating for environments with significant potential differences between ground planes. Evaluate the 16-pin SMT footprint compatibility with existing assembly equipment and soldering profiles.
Part Context
Isocom Components specializes in manufacturing high-performance optocouplers and photoelectric switches. The company provides alternatives to discontinued or hard-to-find components from major semiconductor manufacturers. Their product line focuses on delivering reliable isolation solutions for commercial and industrial applications with flexible manufacturing capabilities.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Verify cross-reference compatibility directly with manufacturer guidelines if replacing legacy components.
