13R476C Fixed Inductor - Equivalent & Substitute Parts

Part Overview

The 13R476C is a 47 mH unshielded wirewound inductor manufactured by Murata Power Solutions Inc., designed for through-hole mounting applications. This component is rated for 45 mA maximum current with a DC resistance of 120 Ohm maximum and operates across the temperature range of -40°C to 85°C. The part maintains Active product status and is RoHS3 compliant, making it suitable for modern electronic assemblies requiring fixed inductance filtering, energy storage, or signal conditioning functions.

Equivalent parts are identified when alternative inductors provide the same inductance value, compatible current ratings, similar DC resistance characteristics, and matching mechanical form factors while maintaining through-hole radial mounting compatibility.

Substiute Parts

13R476C

Murata Power Solutions Inc.In Stock: 80613R476C Datasheet

Current PartRFQ

RLB9012-473KL

Bourns Inc.In Stock: 1868RLB9012-473KL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 13R476C is determined by the following critical parameters:

• Inductance Value: Must be 47 mH to maintain circuit function
• Tolerance: ±10% specification must be maintained
• Current Rating: Substitute must support minimum 45 mA operation
• DC Resistance: Must not exceed 120 Ohm maximum to preserve circuit performance
• Mounting Type: Through-hole radial configuration required
• Package Form Factor: Radial, vertical cylinder geometry for PCB compatibility
• Shielding: Unshielded configuration
• Compliance: RoHS3 compliance required for regulatory alignment

The RLB9012-473KL from Bourns Inc. qualifies as an equivalent substitute based on matching inductance (47 mH), tolerance (±10%), through-hole radial mounting, unshielded construction, and RoHS3 compliance. The substitute provides enhanced current rating (80 mA versus 45 mA) and operates across an extended temperature range (-55°C to 125°C), offering improved performance margins for the specified application.

Parameter Comparison

Engineering Selection Recommendations

Both the 13R476C and RLB9012-473KL maintain Active product status and full RoHS3 compliance, ensuring regulatory alignment for current and future applications. The RLB9012-473KL provides superior performance characteristics with 80 mA current rating capacity against the 45 mA specification of the 13R476C, delivering increased operational margin. The extended temperature range of the Bourns component (-55°C to 125°C) accommodates broader environmental conditions compared to the Murata part (-40°C to 85°C).

DC resistance differential of 17.8 Ohm (137.8 Ohm versus 120 Ohm maximum) must be evaluated within circuit design parameters to confirm acceptable power dissipation and voltage drop characteristics. Physical dimensions are comparable, with the RLB9012-473KL offering slightly reduced footprint (0.354" diameter, 0.480" height) relative to the 13R476C (0.374" diameter, 0.531" height), facilitating improved PCB layout flexibility.

Frequently Asked Questions (FAQ)

Q: Can the RLB9012-473KL directly replace the 13R476C in existing designs?

A: Yes, the RLB9012-473KL qualifies as a direct substitute based on matching inductance (47 mH), tolerance (±10%), through-hole radial mounting configuration, and unshielded construction. The substitute's higher current rating (80 mA) and extended temperature range provide performance enhancement without circuit function degradation.

Q: What is the significance of the DC resistance difference between these parts?

A: The RLB9012-473KL exhibits 137.8 Ohm maximum DC resistance compared to 120 Ohm maximum for the 13R476C. This 17.8 Ohm differential affects power dissipation and voltage drop characteristics. Circuit designers must confirm that the increased resistance remains within acceptable operating parameters for the specific application.

Q: Are physical dimensions compatible for PCB assembly?

A: Both components utilize radial, vertical cylinder packaging suitable for through-hole mounting. The RLB9012-473KL presents slightly reduced dimensions (0.354" diameter, 0.480" height) compared to the 13R476C (0.374" diameter, 0.531" height), allowing direct substitution without PCB layout modification while potentially improving board space utilization.

Q: Do both parts meet current regulatory requirements?

A: Yes, both the 13R476C and RLB9012-473KL maintain RoHS3 compliance and REACH unaffected status, satisfying current regulatory standards for electronic component manufacturing and assembly.

Q: What temperature range considerations apply to substitution?

A: The 13R476C operates from -40°C to 85°C, while the RLB9012-473KL extends to -55°C to 125°C. Applications requiring operation within the original -40°C to 85°C window are fully compatible with the substitute. Applications demanding extended temperature performance benefit from the Bourns component's broader operating range.