SI8402AB-B-IS The Skyworks Solutions SI8402AB-B-IS is a digital isolator designed for I2C and SMBus serial port applications. It offers 2500Vrms isolation and supports I2C clocks up to 1.7 MHz.
Mfr Part #:

SI8402AB-B-IS

Available from 1 distributors
Mfr Name: Skyworks Solutions
Skyworks Solutions
The Skyworks Solutions SI8402AB-B-IS is a digital isolator designed for I2C and SMBus serial port applications. It offers 2500Vrms isolation and supports I2C clocks up to 1.7 MHz.
Total Stock: 8 pcs
$ Price Range: $3.51

SI8402AB-B-IS Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
8 pcs
8 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

SI8402AB-B-IS Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Channel Type
Common Mode Transient Immunity (Min)
Inputs
Isolated Power
Lead Spacing
Mounting Type
Number of Channels
Operating Temperature
Supplier Device Package
Supplier Package
Technology
Type
Voltage

SI8402AB-B-IS Description

Short technical summary and product information.

The Skyworks Solutions SI8402AB-B-IS is a digital isolator featuring bidirectional SDA and SCL isolation channels with open-drain outputs capable of 35 mA sink current. It supports I2C clocks up to 1.7 MHz and provides 2500 VRMS of isolation.

 

This isolator operates within a wide supply voltage range of 3.0 to 5.5 V and a temperature range of -40 to +125 °C. It is built using Skyworks Solutions' proprietary RF isolation technology, offering advantages over traditional optocouplers.

 

The device is housed in an 8-SOIC package suitable for surface mounting. Its design includes protection circuits to prevent data errors when an unpowered device is inserted into a powered system, making it a robust solution for isolating I2C and SMBus serial ports in various applications.

SI8402AB-B-IS Quick Information

Product Type: Digital Isolator
Canonical Name: Skyworks Solutions SI8402AB-B-IS Digital Isolator
Subcategory: I2C Isolator

SI8402AB-B-IS Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SI8402AB-B-IS Estimated Pricing

Qty Low High
1+ $3.51 $3.51

Estimated market price range - modelled values for guidance only, not live distributor offers.

SI8402AB-B-IS Features

  • 2500Vrms isolation rating.
  • Supports I2C clocks up to 1.7 MHz.
  • Bidirectional and unidirectional channels.
  • 35 mA open-drain sink capability.
  • Surface mount 8-SOIC package.

SI8402AB-B-IS Applications

  • Ideal for isolated I2C communication.
  • Suitable for SMBus serial ports.
  • Used in hot-swap applications.
  • Supports digital power supply isolation.

SI8402AB-B-IS FAQs

6 frequently asked questions generated from this part’s specifications.
What is the isolation voltage of the SI8402AB-B-IS?

The SI8402AB-B-IS provides 2500 Vrms of isolation.

What is the maximum I2C clock frequency supported?

The device supports I2C clocks up to 1.7 MHz.

What type of channels does the SI8402AB-B-IS offer?

It offers bidirectional and unidirectional channels.

What is the operating temperature range?

The operating temperature range is -40°C to 125°C.

What package is the SI8402AB-B-IS supplied in?

The SI8402AB-B-IS is supplied in an 8-SOIC package.

What is the supply voltage range?

The device operates from a supply voltage of 3.0 to 5.5 V.

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