SI86S642EE-AS2 Equivalent & Substitute Parts

Part Overview

The SI86S642EE-AS2 is a 6.0 kVRMS SPI digital isolator manufactured by Skyworks Solutions Inc. This component provides galvanic isolation for SPI communication interfaces in automotive-grade applications. The device features 4 unidirectional channels with capacitive coupling technology, supporting data rates up to 150 Mbps and common mode transient immunity of 150 kV/µs.

The SI86S642EE-AS2 maintains Active product status and carries AEC-Q100 automotive qualification. Substitute parts are identified based on matching electrical specifications, mechanical compatibility, and compliance certifications to ensure direct functional equivalence in system designs.

Substiute Parts

SI86S642EE-AS2

Skyworks Solutions Inc.In Stock: 981SI86S642EE-AS2 Datasheet

Current PartRFQ

SI86S642BE-AS2

Skyworks Solutions Inc.In Stock: 1223SI86S642BE-AS2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SI86S642EE-AS2 are identified through parametric equivalence. The substitution logic is based on the following critical parameters that must match exactly:

Mandatory Matching Parameters:

• Isolation voltage: 6000 Vrms
• Number of channels: 4
• Channel type: Unidirectional
• Data rate: 150 Mbps
• Common mode transient immunity: 150 kV/µs
• Supply voltage range: 2.25V to 5.5V
• Operating temperature range: -40°C to 125°C
• Package type: 16-SOIC (0.295", 7.50mm Width)
• Technology: Capacitive Coupling
• Grade: Automotive
• Qualification: AEC-Q100
• RoHS compliance: ROHS3

The SI86S642BE-AS2 meets all these criteria and is classified as a parametric equivalent. Both parts share the same base product number (SI86S642) and differ only in manufacturing lot or date code designation, maintaining full functional and mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

The SI86S642EE-AS2 and SI86S642BE-AS2 are parametric equivalents suitable for direct substitution in automotive SPI isolation applications. Both parts carry Active product status and maintain identical electrical, thermal, and mechanical specifications.

Selection between these parts should be based on:

Availability: Current inventory levels may influence part selection. The SI86S642BE-AS2 currently has 1155 pieces in stock compared to 940 pieces for the SI86S642EE-AS2.

Compliance Requirements: Both parts satisfy AEC-Q100 automotive qualification and ROHS3 compliance, meeting regulatory requirements for automotive-grade digital isolation circuits.

Manufacturing Lot Considerations: The parts differ in manufacturing designation (EE versus BE suffix), which may reflect different production batches or date codes. Both maintain identical performance characteristics and are suitable for new designs or replacement applications.

Thermal and Environmental Performance: Both parts operate across the full automotive temperature range (-40°C to 125°C) with identical thermal characteristics and moisture sensitivity ratings.

Frequently Asked Questions (FAQ)

Q: Can SI86S642BE-AS2 be used as a direct replacement for SI86S642EE-AS2?

A: Yes. The SI86S642BE-AS2 is a parametric equivalent with identical electrical specifications, isolation voltage, channel configuration, data rate, timing characteristics, supply voltage range, operating temperature range, package type, and automotive qualifications. Direct substitution is supported without circuit modifications.

Q: What is the difference between the EE and BE designations in the part numbers?

A: The EE and BE suffixes represent different manufacturing lots or date code designations assigned by Skyworks Solutions Inc. These designations do not indicate functional or electrical differences. Both parts meet identical specifications and performance requirements.

Q: Are both parts suitable for automotive applications?

A: Yes. Both SI86S642EE-AS2 and SI86S642BE-AS2 carry Automotive grade classification and AEC-Q100 qualification, meeting automotive industry standards for reliability and performance.

Q: Do these parts have identical package dimensions?

A: Yes. Both parts use the 16-SOIC package with 0.295" body width and 7.50mm width specification. PCB footprints and mechanical mounting are identical.

Q: What is the isolation voltage rating, and is it the same for both parts?

A: Both parts provide 6000 Vrms isolation voltage, meeting high-voltage isolation requirements in automotive SPI communication circuits.

Q: Are there any differences in timing specifications between these parts?

A: No. Propagation delay (42ns maximum for both tpLH and tpHL), pulse width distortion (2ns maximum), and rise/fall times (2.5ns typical) are identical across both parts.

Q: What is the common mode transient immunity specification?

A: Both parts provide 150 kV/µs common mode transient immunity, enabling robust operation in high-noise automotive environments.

Q: Are both parts RoHS compliant?

A: Yes. Both SI86S642EE-AS2 and SI86S642BE-AS2 are ROHS3 compliant, meeting environmental and hazardous substance restrictions.

Q: What is the moisture sensitivity level for these components?

A: Both parts have Moisture Sensitivity Level 3 with a 168-hour floor life rating, requiring standard moisture control during storage and handling.

Q: Can these parts operate across the full automotive temperature range?

A: Yes. Both parts are rated for -40°C to 125°C operating temperature range, covering automotive environmental conditions.