48150C Shielded Wirewound Inductor Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions Inc. 48150C is a fixed shielded wirewound inductor rated for 15 µH inductance with a maximum current capacity of 3.2 A and DC resistance of 77.4 mOhm. This component is classified as Active product status and is designed for surface mount applications in nonstandard 4-lead configurations. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and current rating category.

Substiute Parts

48150C

Murata Power Solutions Inc.In Stock: 126048150C Datasheet

Current PartRFQ

SRF1260-150M

Bourns Inc.In Stock: 1796SRF1260-150M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 48150C is determined by the following critical parameters:

Primary Substitution Criteria:

• Inductance value in parallel configuration: 15 µH (exact match required)
• Current rating capability: minimum 3.2 A
• DC resistance: must not exceed 77.4 mOhm in the applicable configuration
• Shielding: shielded construction required
• Surface mount compatibility: required
• Operating temperature range: must encompass or exceed -40°C ~ 85°C
• Regulatory compliance: ROHS3 and REACH status alignment

The Bourns Inc. SRF1260-150M qualifies as a substitute when configured in parallel mode, delivering the required 15 µH inductance with 4.27 A parallel current rating and 32.9 mOhm maximum DC resistance in parallel configuration. The component maintains shielded construction, surface mount compatibility, and equivalent regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The SRF1260-150M from Bourns Inc. is qualified as a direct substitute for the 48150C when the parallel coil configuration is utilized. Selection is supported by the following factors:

Electrical Compatibility: The parallel inductance value of 15 µH matches the primary part specification exactly. The parallel current rating of 4.27 A exceeds the 3.2 A requirement, and the parallel DC resistance of 32.9 mOhm is substantially lower than the 77.4 mOhm maximum specification, providing improved performance margin.

Mechanical Compatibility: Both components are surface mount, shielded inductors with identical seated height of 0.244" (6.20mm). Dimensional variation between 12.20mm and 12.50mm footprints is within acceptable tolerance for nonstandard package classifications.

Regulatory Alignment: Both parts maintain ROHS3 compliance and REACH unaffected status. The SRF1260-150M extends the operating temperature range to -40°C ~ 125°C, providing additional thermal margin beyond the 48150C specification of -40°C ~ 85°C.

Product Status: Both components are classified as Active, ensuring continued availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the SRF1260-150M be used as a direct replacement for the 48150C without circuit modification?

A: The SRF1260-150M requires configuration in parallel mode to achieve the 15 µH inductance value. If your circuit board layout and connection scheme support parallel coil connection, substitution is feasible. Series configuration of the SRF1260-150M produces 60 µH inductance and is not compatible with 48150C specifications.

Q: What is the difference in DC resistance between these two parts?

A: The 48150C has a maximum DC resistance of 77.4 mOhm, while the SRF1260-150M in parallel configuration has a maximum DC resistance of 32.9 mOhm. The lower resistance of the substitute part reduces power dissipation and heat generation in the circuit.

Q: Are the physical dimensions compatible for PCB layout?

A: The 48150C measures 0.480" x 0.480" (12.20mm x 12.20mm) with a height of 0.244" (6.20mm). The SRF1260-150M measures 0.492" x 0.492" (12.50mm x 12.50mm) with an identical height of 0.244" (6.20mm). The footprint difference is approximately 0.3mm per side, which is typically accommodable in nonstandard package designs. Verify PCB layout clearances before implementation.

Q: What is the current rating difference, and does it matter?

A: The 48150C is rated for 3.2 A, while the SRF1260-150M in parallel configuration is rated for 4.27 A. The substitute part provides approximately 33% additional current capacity, which improves design margin and thermal performance under load conditions.

Q: Are both parts compliant with the same regulatory standards?

A: Yes. Both the 48150C and SRF1260-150M are ROHS3 compliant and REACH unaffected. Both have Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating equivalent handling and storage requirements.

Q: What is the temperature operating range difference?

A: The 48150C operates from -40°C to 85°C, while the SRF1260-150M operates from -40°C to 125°C. The substitute part provides an extended upper temperature limit of 40°C, which may be beneficial in high-temperature applications or environments with thermal stress.