Equivalent & Substitute Parts for Murata 26S101C

Part Overview

The Murata 26S101C is a 100 µH shielded wirewound inductor rated for 1.05 A continuous current with a maximum DC resistance of 250mOhm. This component is designed for surface mount applications in the nonstandard package format and operates across the industrial temperature range of -40°C to 85°C. The part is currently active in production and fully compliant with RoHS3 and REACH regulations.

Substitute parts are identified when equivalent inductance values, current ratings, and shielding characteristics are maintained within acceptable engineering tolerances, allowing for direct functional replacement in circuit designs.

Substiute Parts

26S101C

Murata Power Solutions Inc.In Stock: 91526S101C Datasheet

Current PartRFQ

SRR1240-101M

Bourns Inc.In Stock: 2682SRR1240-101M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The Bourns SRR1240-101M qualifies as a substitute for the Murata 26S101C based on the following critical parameters:

• Inductance Match: Both parts specify 100 µH, meeting the primary functional requirement
• Current Rating Compatibility: The substitute provides 1.25 A rating, which exceeds the main part's 1.05 A requirement, ensuring adequate current handling capacity
• Shielding Equivalence: Both parts feature shielded construction, maintaining electromagnetic isolation characteristics
• Surface Mount Configuration: Both use surface mount technology with nonstandard package formats
• Regulatory Compliance: Both parts maintain ROHS3 and REACH compliance status
• Temperature Range: The substitute operates from -40°C to 125°C, which encompasses the main part's operating range

The substitute exhibits slightly higher DC resistance (300mOhm Max vs. 250mOhm Max) and different core material (ferrite drum core vs. standard wirewound), but these variations remain within acceptable substitution parameters for this component category.

Parameter Comparison

Engineering Selection Recommendations

Both the Murata 26S101C and Bourns SRR1240-101M maintain active product status with full regulatory compliance. The Bourns substitute provides enhanced current capacity (1.25 A vs. 1.05 A) and extended temperature operation to 125°C, offering design margin in thermal and current-limited applications. The higher DC resistance specification of the substitute (300mOhm vs. 250mOhm) should be evaluated in power dissipation-sensitive circuits. Both components carry identical moisture sensitivity and regulatory certifications, supporting direct substitution in compliant supply chains.

Frequently Asked Questions (FAQ)

Q: Can the Bourns SRR1240-101M directly replace the Murata 26S101C in existing designs?

A: Yes, the substitute maintains equivalent inductance (100 µH), shielding characteristics, and surface mount configuration. The higher current rating and extended temperature range provide additional design margin. The increased DC resistance should be evaluated for thermal impact in the specific application.

Q: What are the physical dimension differences between these parts?

A: The Murata 26S101C measures 0.496" L × 0.181" W × 0.232" H (12.60mm × 4.60mm × 5.90mm). The Bourns SRR1240-101M measures 0.492" L × 0.492" W × 0.177" H (12.50mm × 12.50mm × 4.50mm). The substitute has a larger footprint width, requiring PCB layout verification before implementation.

Q: Are both parts suitable for high-temperature applications?

A: The Murata part operates to 85°C maximum. The Bourns substitute extends to 125°C, making it suitable for elevated temperature environments within the substitute's rated range.

Q: Do both parts meet the same regulatory requirements?

A: Yes, both components are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings, supporting equivalent use in regulated supply chains.

Q: How do the self-resonant frequencies compare?

A: The Murata 26S101C specifies 6.04 MHz, while the Bourns SRR1240-101M specifies 8 MHz. The higher resonant frequency of the substitute may affect high-frequency circuit behavior and should be evaluated in frequency-sensitive applications.