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SI86SS41EC-AS1 Equivalent & Substitute Parts Reference
Part Overview
The SI86SS41EC-AS1 is a SPI digital isolator, supporting up to 3.75 kVrms isolation, 4 unidirectional channels, and high-speed data rates up to 150 Mbps. The device utilizes capacitive coupling technology and is qualified for automotive use (AEC-Q100). The active product status indicates current availability. Identifying alternative models is essential for supply chain resilience, ensuring continued production in case of procurement constraints or inventory depletion.
Substiute Parts
Key Parameters
| Manufacturer Part Number | Manufacturer | Technology | Type | Isolated Power | Number of Channels | Inputs - Side 1/Side 2 | Channel Type | Voltage - Isolation | Common Mode Transient Immunity (Min) | Data Rate | Propagation Delay tpLH / tpHL (Max) | Pulse Width Distortion (Max) | Rise / Fall Time (Typ) | Voltage - Supply | Grade | Qualification | Operating Temperature | Mounting Type | Package / Case | Supplier Device Package | RoHS Status | Moisture Sensitivity Level (MSL) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SI86SS41EC-AS1 | Skyworks Solutions Inc. | Capacitive Coupling | SPI | Yes | 4 | 3/1 | Unidirectional | 3750Vrms | 150kV/µs | 150Mbps | 42ns, 42ns | 2ns | 2.5ns, 2.5ns | 2.25V ~ 5.5V | Automotive | AEC-Q100 | -40°C ~ 125°C | Surface Mount | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC | ROHS3 Compliant | 2 (1 Year) |
Substitute Part Grouping Explanation
Substitution is determined by verifying identical electrical and mechanical characteristics: technology (capacitive coupling), channel count, channel directionality, isolation voltage (3750Vrms), transient immunity (150kV/µs), speed (150Mbps), propagation delay, supply voltage range (2.25V ~ 5.5V), automotive grade, and package compatibility (16-SOIC). Only parts matching all listed criteria are suitable substitutes within the SPI digital isolator category.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Technology | Type | Isolated Power | Number of Channels | Inputs - Side 1/Side 2 | Channel Type | Voltage - Isolation | Common Mode Transient Immunity (Min) | Data Rate | Propagation Delay tpLH / tpHL (Max) | Pulse Width Distortion (Max) | Rise / Fall Time (Typ) | Voltage - Supply | Grade | Qualification | Operating Temperature | Mounting Type | Package / Case | Supplier Device Package | RoHS Status | Moisture Sensitivity Level (MSL) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SI86SS41EC-AS1 | Skyworks Solutions Inc. | Capacitive Coupling | SPI | Yes | 4 | 3/1 | Unidirectional | 3750Vrms | 150kV/µs | 150Mbps | 42ns, 42ns | 2ns | 2.5ns, 2.5ns | 2.25V ~ 5.5V | Automotive | AEC-Q100 | -40°C ~ 125°C | Surface Mount | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC | ROHS3 Compliant | 2 (1 Year) |
| SI86S641BC-AS1 | Skyworks Solutions Inc. | Capacitive Coupling | SPI | Yes | 4 | 3/1 | Unidirectional | 3750Vrms | 150kV/µs | 150Mbps | 42ns, 42ns | 2ns | 2.5ns, 2.5ns | 2.25V ~ 5.5V | Automotive | AEC-Q100 | -40°C ~ 125°C | Surface Mount | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC | ROHS3 Compliant | 2 (1 Year) |
Engineering Selection Recommendations
Both SI86SS41EC-AS1 and SI86S641BC-AS1 are active, qualified for automotive applications (AEC-Q100), and meet ROHS3 compliance. Moisture Sensitivity Level is identical (2, 1 Year). Selection can therefore be made based strictly on equivalent status, compliance standards, and matching certifications as per the provided parameters.
Frequently Asked Questions (FAQ)
Q: What parameters must match for SPI digital isolator substitution?
A: Substitute parts must have identical technology, channel count and direction, isolation voltage, CMTI, data rate, propagation delay, supply voltage range, package/case dimensions, automotive qualification, and compliance status.
Q: Is the package format important in SPI isolator substitutions?
A: Yes, only substitutes with the same package/case (16-SOIC, 0.154", 3.90mm width) and mounting type (surface mount) are suitable.
Q: Are both SI86SS41EC-AS1 and SI86S641BC-AS1 suitable for automotive-grade designs?
A: Both parts are rated automotive grade and meet AEC-Q100 qualification.
Q: Do these isolators have matching moisture sensitivity levels and RoHS compliance?
A: Both devices have a Moisture Sensitivity Level of 2 (1 Year) and are ROHS3 compliant.
Q: Can SI86S641BC-AS1 be directly substituted for SI86SS41EC-AS1 based on provided parameters?
A: Yes, all specified electrical, mechanical, and regulatory parameters are identical.
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