SI8261BCD-C-IM Equivalent & Substitute Parts

Part Overview

The SI8261BCD-C-IM is a 4A gate driver with capacitive coupling isolation rated at 5000Vrms, designed for single-channel gate drive applications in automotive-grade systems. This part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity. The SI8261BCD-C-IM operates across the automotive temperature range (-40°C to 125°C) and meets AEC-Q100 qualification requirements.

Substiute Parts

SI8261BCD-C-IM

Skyworks Solutions Inc.In Stock: 955SI8261BCD-C-IM Datasheet

Current PartRFQ

SI8261BCD-C-IS

Skyworks Solutions Inc.In Stock: 2186SI8261BCD-C-IS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SI8261BCD-C-IS qualifies as a functional substitute for the SI8261BCD-C-IM based on the following critical parameters:

• Isolation Voltage: Both parts maintain 5000Vrms isolation rating
• Technology: Both use capacitive coupling isolation
• Channel Configuration: Both provide single-channel gate drive
• Common Mode Transient Immunity: Both rated at 35kV/µs minimum
• Peak Output Current: Both deliver 4A peak output
• Output Supply Voltage Range: Both operate from 14.6V to 30V
• Operating Temperature Range: Both rated -40°C to 125°C
• Automotive Grade: Both meet AEC-Q100 qualification
• Manufacturer: Both manufactured by Skyworks Solutions Inc.

The primary difference is packaging: SI8261BCD-C-IM uses 8-VELGA (8-LGA 10x12.5mm), while SI8261BCD-C-IS uses 6-SDIP Gull Wing. This packaging difference requires PCB layout modification but does not affect electrical performance or functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The SI8261BCD-C-IS is the appropriate substitute for SI8261BCD-C-IM applications. Both parts maintain identical electrical specifications, isolation ratings, and automotive-grade certifications. The SI8261BCD-C-IS carries Active product status, ensuring long-term availability and supply chain continuity compared to the obsolete SI8261BCD-C-IM.

Substitution requires PCB layout modification due to package format change from 8-VELGA to 6-SDIP Gull Wing. All electrical performance characteristics, including propagation delay, pulse width distortion, and output current ratings, remain unchanged. Both parts comply with identical regulatory approvals (CQC, CSA, UR, VDE) and maintain equivalent moisture sensitivity levels.

Frequently Asked Questions (FAQ)

Q: Can SI8261BCD-C-IS directly replace SI8261BCD-C-IM without design changes?

A: Electrical substitution is direct. However, the package format differs (8-VELGA versus 6-SDIP Gull Wing), requiring PCB footprint and layout modifications. Pin-to-pin electrical functionality is equivalent.

Q: Are the isolation voltage ratings identical between these parts?

A: Yes. Both SI8261BCD-C-IM and SI8261BCD-C-IS provide 5000Vrms isolation with 35kV/µs common mode transient immunity.

Q: What is the impact of the package change on thermal performance?

A: Package thermal characteristics are not provided in the specification data. Thermal analysis should be conducted based on the specific 6-SDIP Gull Wing package datasheet for the SI8261BCD-C-IS.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both parts carry AEC-Q100 qualification and Automotive grade designation, meeting identical automotive standards.

Q: Is the SI8261BCD-C-IS available in higher quantities than the obsolete SI8261BCD-C-IM?

A: Current inventory shows SI8261BCD-C-IS at 2123 pieces in stock versus 908 pieces for the obsolete SI8261BCD-C-IM. The active product status of SI8261BCD-C-IS ensures ongoing availability.

Q: Are there differences in propagation delay or timing characteristics?

A: No. Both parts specify identical propagation delay (60ns, 50ns), pulse width distortion (28ns), and rise/fall times (5.5ns, 8.5ns).