Murata Power Solutions 48101C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 48101C is a 100 µH shielded wirewound inductor rated for 1.23 A continuous current with a maximum DC resistance of 503mOhm. This surface mount component operates across the industrial temperature range of -40°C to 85°C and is designed for applications requiring compact, shielded inductive filtering and energy storage in power conversion circuits.

The 48101C maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent parts may be required due to supply constraints, design optimization for specific thermal requirements, or application-specific performance needs within the defined electrical and mechanical parameters.

Substiute Parts

48101C

Murata Power SolutionsIn Stock: 70548101C Datasheet

Current PartRFQ

SRF1260-101M

Bourns Inc.In Stock: 2239SRF1260-101M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 48101C is determined by the following critical parameters:

Primary Electrical Criteria:

• Inductance value of 100 µH (when configured for parallel connection in multi-coil arrays)
• Current rating capability of 1.23 A minimum
• DC resistance not exceeding 503mOhm at rated current
• Shielded construction to maintain electromagnetic isolation

Mechanical & Environmental Criteria:

• Surface mount configuration
• Physical footprint compatibility within 12.20mm x 12.20mm x 6.20mm envelope
• Operating temperature range minimum of -40°C to 85°C
• Nonstandard 4-lead package format

Compliance & Reliability:

• RoHS3 compliance certification
• MSL 1 rating (unlimited moisture sensitivity)
• Active product status with established supply chain

The Bourns Inc. SRF1260-101M qualifies as an equivalent substitute when configured in parallel connection mode, delivering the required 100 µH inductance with 1.78 A parallel current rating and 171mOhm parallel DCR, both exceeding the 48101C specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: Murata Power Solutions 48101C

The 48101C remains the preferred component for applications with established design validation and supply chain integration. Active product status ensures long-term availability and consistent manufacturing quality under ROHS3 compliance.

Equivalent Alternative: Bourns Inc. SRF1260-101M

The SRF1260-101M serves as a qualified equivalent when configured in parallel connection mode. This multi-coil inductor array provides superior electrical performance with lower DC resistance (171mOhm vs. 503mOhm) and higher current capacity (1.78 A vs. 1.23 A), enabling thermal margin improvement in power conversion applications. Extended operating temperature range (-40°C to 125°C) supports deployment in elevated ambient conditions beyond the 48101C specification.

Both components maintain identical RoHS3 and MSL 1 certifications, ensuring regulatory compliance and moisture handling consistency across manufacturing and field deployment.

Frequently Asked Questions (FAQ)

Q: Can the SRF1260-101M directly replace the 48101C without circuit modification?

A: The SRF1260-101M requires parallel connection configuration to deliver the 100 µH inductance value. Circuit board layout must accommodate the multi-coil array pinout. Footprint dimensions differ slightly (12.50mm vs. 12.20mm), requiring PCB pad pattern verification before implementation.

Q: What is the significance of the SRF1260-101M's dual inductance ratings?

A: The SRF1260-101M is a two-coil inductor array offering 100 µH in parallel configuration and 400 µH in series configuration. For 48101C substitution, only the parallel configuration (100 µH, 1.78 A, 171mOhm DCR) applies. Series configuration is not compatible with this application requirement.

Q: Does the lower DC resistance of the SRF1260-101M affect circuit behavior?

A: Lower DC resistance reduces resistive losses and heat generation at rated current. This improves efficiency and thermal performance but does not alter the fundamental inductive behavior. Circuit operation remains functionally equivalent when inductance and current rating requirements are met.

Q: Are both components suitable for high-reliability applications?

A: Both the 48101C and SRF1260-101M carry Active product status, RoHS3 compliance, and MSL 1 ratings, supporting deployment in industrial and commercial applications. Component selection should align with established design validation and supply chain qualification procedures.

Q: What packaging format differences exist between these components?

A: The 48101C is supplied in Tape & Reel (TR) format, while the SRF1260-101M is available in Cut Tape (CT) and Digi-Reel® format. Both are surface mount compatible. Procurement and assembly process integration may require adjustment based on available packaging options and production volume requirements.