IS281D

$0.50

Description：OPTOISOLATOR 3.75KV 1CH TRANS
Series：-
Mfr：Isocom Components 2004 LTD
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:c241e6de58ee Category: Transistor, Photovoltaic Output Optoisolators Brand: Isocom Components 2004 LTD

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Product introduction

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)：300% @ 5mA
Current Transfer Ratio (Max)：600% @ 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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IS281D

Overview

The IS281D is a single-channel transistor-output optoisolator manufactured by Isocom Components 2004 LTD. It provides an isolation voltage of 3750Vrms and operates within a temperature range of -55°C to 110°C. The device features a maximum output voltage of 80V and a collector current of 50mA per channel. Electrical characteristics include a typical forward voltage of 1.2V, a maximum DC forward current of 60mA, and a saturation voltage drop of 200mV. The current transfer ratio ranges from 50% to 600% at a forward current of 10mA. Response times are specified as 5µs for rise time and 3µs for fall time. It is housed in a 4-SOIC surface-mount package with a width of 4.40mm.

Feature Summary

Provides high-voltage electrical isolation between input and output circuits using infrared LED and phototransistor technology.
Designed for robust performance across extended industrial temperature ranges suitable for demanding environments.
Features fast switching capabilities with defined rise and fall times for signal integrity.
Utilizes a compact surface-mount package format for efficient PCB layout integration.

Applications

Industrial control systems requiring galvanic isolation
Power supply protection circuits
Gas detection and monitoring equipment

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact packaging and variant specifications. Ensure compatibility with required isolation voltage standards and thermal operating limits for the target application environment before finalizing procurement decisions.

Selection Notes

Select this component when a single-channel transistor output is required for digital signal isolation. Consider the 3750Vrms isolation rating and -55°C to 110°C operating range for suitability in harsh conditions. Evaluate the 50mA collector current capacity against load requirements to ensure adequate drive capability for downstream circuitry.

Part Context

The IS281D belongs to the family of transistor-output optocouplers produced by Isocom Components 2004 LTD. These devices are engineered to replace legacy components in various electronic designs. The manufacturer specializes in infrared optoelectronic devices, offering alternatives to discontinued industry-standard parts while maintaining compliance with global manufacturing standards.