IS281-4

$1.31

Description：OPTOISOLATOR 3.75KV 4CH TRANS
Series：-
Mfr：Isocom Components 2004 LTD
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:b385cc709a89 Category: Transistor, Photovoltaic Output Optoisolators Brand: Isocom Components 2004 LTD

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Product introduction

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)：50% @ 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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IS281-4

Overview

The IS281-4 is a quad channel optocoupler manufactured by Isocom Components, featuring four independent phototransistor outputs driven by infrared LEDs. It utilizes double transfer mold technology for enhanced isolation and reliability. The device supports surface mount installation in a 16-pin package with DC input configuration. Key electrical parameters include a maximum forward voltage of 1.4V, a typical rise time of 6μs, and a typical fall time of 6μs. It offers an isolation voltage of 3750Vrms and operates within a temperature range of -55°C to 110°C. The current transfer ratio ranges from a minimum of 50% to a maximum of 600%, with a maximum input current of 50mA.

Feature Summary

Employs double transfer mold technology for robust insulation
Provides four independent channels for signal isolation
Supports surface mount assembly for compact designs

Applications

Industrial control systems
Power supply units
Smart metering devices

Procurement Notes

Verify the specific suffix or tape-and-reel designation when ordering, as packaging variations may exist. Confirm compliance with RoHS and lead-free requirements against the latest datasheet revision. Ensure the selected package matches the target PCB footprint precisely. Cross-reference isolation voltage ratings with system safety standards before integration.

Selection Notes

Select this component for applications requiring high-density quad-channel isolation in a surface mount form factor. Consider the 3750Vrms isolation rating for safety-critical interfaces. Evaluate the 6μs switching speed against signal frequency requirements. Verify thermal management capabilities given the wide operating temperature range up to 110°C.

Part Context

Isocom Components specializes in optoelectronic devices, including optocouplers and solid-state relays. The IS281-4 belongs to their general-purpose optocoupler portfolio, designed to replace legacy components from other manufacturers. The company emphasizes manufacturing consistency and short lead times for industrial and commercial markets.