SI8630ED-AS Equivalent & Substitute Parts

Part Overview

The SI8630ED-AS is an automotive-grade general purpose digital isolator manufactured by Skyworks Solutions Inc. This device provides 5000Vrms isolation across 3 unidirectional channels with a maximum data rate of 150Mbps and operates across the automotive temperature range of -40°C to 125°C. The SI8630ED-AS is classified as Active product status and is qualified to AEC-Q100 automotive standards.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained while meeting application requirements. The SI8630ED-AS may require alternatives due to inventory availability, supply chain considerations, or application-specific channel count requirements.

Substiute Parts

SI8630ED-AS

Skyworks Solutions Inc.In Stock: 844SI8630ED-AS Datasheet

Current PartRFQ

SI8610BD-B-IS

Skyworks Solutions Inc.In Stock: 1335SI8610BD-B-IS Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SI8630ED-AS is determined by the following critical parameters:

Mandatory Matching Parameters:

• Manufacturer: Skyworks Solutions Inc.
• Voltage - Isolation: 5000Vrms
• Package / Case: 16-SOIC (0.295", 7.50mm Width)
• Voltage - Supply: 2.5V ~ 5.5V
• Operating Temperature: -40°C ~ 125°C
• Data Rate: 150Mbps
• Technology: Capacitive Coupling
• Mounting Type: Surface Mount

Allowable Variation Parameters:

• Number of Channels: May differ based on application requirements
• Common Mode Transient Immunity (Min): May be lower than the main part
• Propagation Delay and Pulse Width Distortion: Must remain within specified maximums

The SI8610BD-B-IS qualifies as a parametric equivalent substitute based on matching isolation voltage, supply voltage range, operating temperature, data rate, package type, and mounting specifications. The primary difference is the reduction from 3 channels to 1 channel and a lower CMTI specification of 35kV/µs compared to 60kV/µs.

Parameter Comparison

Engineering Selection Recommendations

SI8630ED-AS Selection Criteria: The SI8630ED-AS is the primary choice for applications requiring 3 isolated channels with 5000Vrms isolation, 150Mbps data rate, and 60kV/µs common mode transient immunity. This device maintains Active product status and AEC-Q100 automotive qualification, ensuring long-term availability and compliance with automotive reliability standards.

SI8610BD-B-IS Selection Criteria: The SI8610BD-B-IS serves as a substitute when single-channel isolation is sufficient for the application. This part maintains identical isolation voltage, supply voltage range, operating temperature, data rate, and package specifications. The reduced channel count (1 versus 3) and lower CMTI specification (35kV/µs versus 60kV/µs) must be evaluated against application requirements. Both devices maintain Active product status and are manufactured by Skyworks Solutions Inc. using identical capacitive coupling technology.

Compliance Considerations: Both parts are qualified to AEC-Q100 automotive standards and operate across -40°C to 125°C. The SI8610BD-B-IS carries ROHS3 compliance and REACH Unaffected status. Moisture sensitivity level is 2A (4 Weeks) for both devices.

Frequently Asked Questions (FAQ)

Q: Can SI8610BD-B-IS replace SI8630ED-AS in all applications?

A: No. The SI8610BD-B-IS provides only 1 isolated channel compared to the 3 channels of the SI8630ED-AS. Substitution is valid only when the application requires single-channel isolation. Additionally, the CMTI specification is reduced from 60kV/µs to 35kV/µs, which may impact performance in high-speed switching environments.

Q: Are the package dimensions identical between these parts?

A: Yes. Both SI8630ED-AS and SI8610BD-B-IS use the 16-SOIC (0.295", 7.50mm Width) package with identical surface mount specifications. PCB layout and footprints are compatible.

Q: What is the significance of the Common Mode Transient Immunity difference?

A: Common Mode Transient Immunity (CMTI) specifies the maximum rate of change of common mode voltage that the isolator can withstand without introducing errors. The SI8630ED-AS supports 60kV/µs while the SI8610BD-B-IS supports 35kV/µs. Applications with rapid voltage transitions may require the higher CMTI specification of the SI8630ED-AS.

Q: Do both parts support the same supply voltage range?

A: Yes. Both devices operate with supply voltage from 2.5V to 5.5V and maintain identical propagation delay, pulse width distortion, and rise/fall time specifications.

Q: What is the operating temperature range for both devices?

A: Both the SI8630ED-AS and SI8610BD-B-IS operate across -40°C to 125°C, meeting automotive temperature requirements.

Q: Are there any compliance differences between these parts?

A: The SI8610BD-B-IS explicitly lists ROHS3 Compliant and REACH Unaffected status. Both devices carry AEC-Q100 automotive qualification and identical moisture sensitivity level of 2A (4 Weeks).