13R473C Equivalent & Substitute Parts

Part Overview

The 13R473C is a 47 µH unshielded wirewound inductor manufactured by Murata Power Solutions, rated for 1.5 A continuous current with a maximum DC resistance of 110mOhm. This through-hole radial component operates across the temperature range of -40°C to 85°C and is compliant with ROHS3 and REACH standards. The part is currently active in production with 908 units in stock.

Equivalent and substitute parts are identified when design requirements allow for variations in current rating, DC resistance, core material, or operating temperature range while maintaining the same inductance value and mounting configuration.

Substiute Parts

13R473C

Murata Power SolutionsIn Stock: 100613R473C Datasheet

Current PartRFQ

RLB9012-470KL

Bourns Inc.In Stock: 2606RLB9012-470KL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 13R473C is permissible when the following conditions are met:

The substitute part must maintain the same inductance value of 47 µH with ±10% tolerance. The mounting type must remain through-hole with radial, vertical cylinder package configuration. Both parts must be unshielded wirewound inductors. The substitute part must support the required current and thermal operating conditions of the application. Compliance certifications (ROHS3, REACH) must be maintained. Variations in current rating, DC resistance, core material, physical dimensions, and operating temperature range are acceptable provided the application requirements are satisfied.

Parameter Comparison

Engineering Selection Recommendations

The RLB9012-470KL from Bourns Inc. is a qualified substitute for the 13R473C. Both parts maintain identical inductance specifications and tolerance, with through-hole radial mounting configurations. The Bourns part provides higher current rating capability (1.77 A versus 1.5 A) and extended operating temperature range (-55°C to 125°C versus -40°C to 85°C), making it suitable for applications requiring enhanced thermal performance or higher current margins.

The RLB9012-470KL exhibits higher DC resistance (160mOhm Max versus 110mOhm Max), which may result in increased power dissipation in current-limited applications. Physical dimensions are slightly smaller, which may provide layout advantages in space-constrained designs. Both parts maintain full ROHS3 and REACH compliance, ensuring regulatory compatibility.

Frequently Asked Questions (FAQ)

Q: Can the RLB9012-470KL replace the 13R473C in all applications?

A: Substitution is valid when the application can tolerate the higher DC resistance of 160mOhm (versus 110mOhm) and when the physical dimensions of 0.354" diameter and 0.480" height fit the PCB layout. The higher current rating of 1.77 A provides additional design margin.

Q: What is the impact of the higher DC resistance in the Bourns part?

A: Higher DC resistance increases resistive losses proportionally to the square of the current. At 1.5 A, the Bourns part dissipates approximately 0.36 W compared to 0.248 W for the Murata part. Thermal management considerations may be necessary in power-sensitive applications.

Q: Are the physical dimensions compatible with existing PCB layouts?

A: The Bourns RLB9012-470KL is slightly smaller (0.354" diameter, 0.480" height) compared to the Murata 13R473C (0.374" diameter, 0.531" height). Verify that the smaller footprint does not create spacing conflicts with adjacent components or create unintended layout improvements.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the 13R473C and RLB9012-470KL are ROHS3 compliant and REACH unaffected, ensuring equivalent regulatory status for applications requiring these certifications.

Q: What is the difference in core material between these parts?

A: The 13R473C uses a standard wirewound core, while the RLB9012-470KL uses a ferrite drum core with wirewound construction. Both are unshielded and maintain the same inductance specification.