SI8410BB-C-ISR Digital Isolator Equivalent & Substitute Parts

Part Overview

The SI8410BB-C-ISR is a general purpose digital isolator manufactured by Skyworks Solutions Inc., featuring capacitive coupling technology with 2500Vrms isolation voltage and 1-channel unidirectional configuration in an 8-SOIC package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent and substitute parts is necessary for ongoing system support, legacy design maintenance, and ensuring continued availability for production requirements.

Substiute Parts

SI8410BB-C-ISR

Skyworks Solutions Inc.In Stock: 875SI8410BB-C-ISR Datasheet

Current PartRFQ

SI8610BB-B-ISR

Skyworks Solutions Inc.In Stock: 8194SI8610BB-B-ISR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SI8410BB-C-ISR is determined by the following critical parameters:

• Isolation Voltage: 2500Vrms minimum
• Number of Channels: 1 channel
• Channel Configuration: Unidirectional input/output
• Data Rate: 150Mbps minimum
• Package Type: 8-SOIC (0.154", 3.90mm Width)
• Supply Voltage Range: Compatibility with 2.7V ~ 5.5V operation
• Operating Temperature Range: -40°C ~ 125°C
• Technology: Capacitive coupling isolation

The SI8610BB-B-ISR qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. Both devices share identical isolation voltage, channel configuration, data rate, package footprint, and operating temperature specifications.

Parameter Comparison

Engineering Selection Recommendations

The SI8610BB-B-ISR is the qualified substitute for SI8410BB-C-ISR applications. Selection is based on the following engineering criteria:

Product Status: The SI8610BB-B-ISR maintains Active product status, ensuring continued manufacturing support and availability, whereas the SI8410BB-C-ISR is designated "Not For New Designs" and subject to discontinuation.

Electrical Compatibility: Both devices meet the core isolation and data rate requirements. The SI8610BB-B-ISR provides enhanced common mode transient immunity (35kV/µs versus 25kV/µs), which represents improved performance margin in high-speed switching environments.

Package and Thermal Compatibility: Identical 8-SOIC package footprint and operating temperature range (-40°C to 125°C) ensure direct PCB layout compatibility and thermal performance equivalence.

Supply Voltage Range: The SI8610BB-B-ISR supports a wider supply voltage range (2.5V to 5.5V) compared to the main part (2.7V to 5.5V), providing additional operational flexibility.

Compliance: Both devices maintain MSL 2A moisture sensitivity classification and equivalent handling requirements.

Frequently Asked Questions (FAQ)

Q: Can SI8610BB-B-ISR directly replace SI8410BB-C-ISR in existing designs?

A: Yes. Both devices share identical isolation voltage (2500Vrms), channel configuration (1-channel unidirectional), data rate (150Mbps), package type (8-SOIC), and operating temperature range. Pin-to-pin compatibility and functional equivalence are confirmed.

Q: What are the timing differences between these parts?

A: The SI8610BB-B-ISR exhibits longer propagation delay (13ns maximum versus 9.5ns) and higher pulse width distortion (4.5ns versus 2.5ns). These differences are within typical system timing margins for 150Mbps data rate applications but should be verified in timing-critical designs.

Q: Is the SI8610BB-B-ISR suitable for new designs?

A: Yes. The SI8610BB-B-ISR carries Active product status, making it the appropriate choice for new development. The SI8410BB-C-ISR should not be used in new designs due to its end-of-life classification.

Q: Are there supply voltage compatibility concerns?

A: No. The SI8610BB-B-ISR supports the full 2.7V to 5.5V range required by the original part, plus extends to 2.5V minimum. Existing power supply designs require no modification.

Q: What is the significance of the improved CMTI specification?

A: The SI8610BB-B-ISR provides 35kV/µs common mode transient immunity compared to 25kV/µs in the original part. This enhancement improves noise immunity in applications with high-speed switching or high-voltage transients, though both specifications meet standard industrial isolation requirements.

Q: Are moisture sensitivity and handling requirements identical?

A: Yes. Both devices are classified as MSL 2A (4 Weeks), requiring identical storage, handling, and reflow procedures. No changes to manufacturing or assembly processes are necessary.