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Small black rectangular SOP16 integrated circuit chip

YINGHUA

YINGHUA SI8642AB-B-IS1R Digital Isolator SOP16

SKU CH-KF0H-JSRNN

A 16-pin digital isolator IC for signal isolation, first listed in February 2025

  • Product typeICs Semicoductors
  • 16-pin SOP package simplifies board layout
  • 8642 series digital isolator protects signal integrity
  • IC semiconductor design suits industrial control systems
  • New condition ensures reliable long-term operation
  • Manufacturer listing from February 21, 2025 confirms current production

Component identity

The YINGHUA SI8642AB-B-IS1R is a digital isolator in a SOP16 package designed for signal isolation in electronic systems. Engineers select it when galvanic separation is required between circuit domains.

Upgrade path

It replaces legacy optocoupler or transformer-based isolation where tighter timing or lower power is needed. The jump is worth it when a design demands the specific 8642 channel configuration and package footprint.

Build integration

The SOP16 footprint fits standard 16-pin solder pads and frees board space compared with wider isolation packages. It needs compatible supply rails and signal levels on both sides of the isolation barrier.

How it compares

Measured against everything we stock in Encoders & Semiconductor Parts, at today’s prices. Recalculated every night.

Price $36.99
Typical for this category: the median of 1,027 items is $34.99.

Specifications

Product
Product typeICs Semicoductors

Questions about this item

What PCB footprint does the SOP16 package of the SI8642AB-B-IS1R require?

The device uses a standard 16-pin SOP package, so design the PCB with a matching 16-lead small-outline footprint and appropriate pad spacing.

How is the SI8642AB-B-IS1R mounted, and what soldering step is often missed?

It is a surface-mount component; reflow solder the 16 leads and ensure the thermal pad, if present, is properly soldered to the board for heat dissipation.

When should the SI8642AB-B-IS1R be replaced in a long-running system?

Plan replacement if the isolator shows data errors, fails to transmit signals across the barrier, or after the equipment manufacturer's recommended service interval.

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