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SI8641BD-B-ISR

The SI8641BD-B-ISR is a 4-channel digital isolator from Silicon Labs with a data rate of 150 Mb/s and 5000 Vrms isolation voltage. It operates from 2.375 V to 5.5 V and over -40°C to 125°C.

✓ Total Stock: 5,980 pcs

$ Price Range: $8.46

SI8641BD-B-ISR Available from 4 distributors

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Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Optech Co.,Limited ✓ Non-Authorised Inventory information	4,694 pcs On Request	4694 pcs	On Request	1	On Request	On Request	24+	On Request	On Request
Smaxon Electronics ✓ Non-Authorised Inventory information	1,026 pcs On Request	1026 pcs	On Request	1	On Request	On Request	1736+	On Request	On Request
Rayichip ✓ Non-Authorised Inventory information	185 pcs On Request	185 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Bristol Electronics ✓ Non-Authorised Inventory information	75 pcs On Request	75 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

SI8641BD-B-ISR Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Silicon Labs
Data Rate	150 Mb/s
Lead Spacing	1.27 mm mm
Lead Style	Gull-Wing
Number of Channels	4
Operating Temperature	125 C

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SI8641BD-B-ISR Description

Short technical summary and product information.

The SI8641BD-B-ISR is a 4-channel digital isolator manufactured by Silicon Labs. It uses capacitive coupling technology to provide galvanic isolation up to 5000 Vrms, making it suitable for high-voltage applications. The device supports a data rate of 150 Mb/s, enabling high-speed signal transmission across the isolation barrier.

Electrical specifications include a supply voltage range of 2.375 V to 5.5 V, allowing compatibility with both 3.3 V and 5 V logic systems. The operating temperature range spans -40°C to 125°C, covering industrial and automotive temperature requirements. With four independent channels, this isolator can handle multiple signal paths in a single package.

Designers can use the SI8641BD-B-ISR in applications requiring signal isolation, such as industrial automation, motor control, and communication interfaces. The capacitive coupling architecture offers low power consumption and high reliability. Package details are not specified in the available data, but typical digital isolators come in surface-mount packages.

SI8641BD-B-ISR Quick Information

Product Type: Digital Isolator

Series: SI8641

Canonical Name: SI8641BD-B-ISR 4-Channel Digital Isolator

Subcategory: Digital Isolators

SI8641BD-B-ISR Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

SI8641BD-B-ISR Estimated Pricing

Qty	Low	High
1+	$8.46	$8.46

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

SI8641BD-B-ISR Features

4-channel capacitive coupling digital isolator.
150 Mb/s high-speed data rate.
5000 Vrms isolation voltage rating.
Wide supply voltage 2.375 V to 5.5 V.
Industrial temperature range -40°C to 125°C.

SI8641BD-B-ISR Applications

Isolated SPI and UART communication interfaces.
Industrial automation and motor control systems.
High-speed signal isolation in data acquisition.
Galvanic isolation for power supply feedback loops.

SI8641BD-B-ISR FAQs

6 frequently asked questions generated from this part’s specifications.

How many channels does the SI8641BD-B-ISR have?

4 channels.

What is the data rate of the SI8641BD-B-ISR?

150 Mb/s.

What is the isolation voltage rating?

5000 Vrms.

What type of isolation does the SI8641BD-B-ISR use?

Capacitive coupling.

What is the supply voltage range?

2.375 V to 5.5 V.

What is the operating temperature range?

-40°C to 125°C.