Murata Power Solutions 15473C Fixed Inductor - Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 15473C is a 47 µH unshielded wirewound inductor rated for 4.04 A continuous current with a maximum DC resistance of 45.6mOhm. This through-hole radial component operates across the -40°C to 85°C temperature range and is part of the 1500 series. The part maintains active product status and is ROHS3 compliant.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit operation within alternative electrical and mechanical specifications. The 15473C can be substituted with compatible inductors that maintain the same inductance value, tolerance, and physical form factor while accommodating variations in current rating, DC resistance, and operating temperature range.

Substiute Parts

15473C

Murata Power Solutions Inc.In Stock: 76115473C Datasheet

Current PartRFQ

1110-470K-RC

Bourns Inc.In Stock: 11501110-470K-RC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 15473C is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

• Inductance value: 47 µH
• Inductance tolerance: ±10%
• Shielding type: Unshielded
• Mounting type: Through Hole
• Package / Case: Radial, Vertical Cylinder
• Physical dimensions: Diameter approximately 0.660" - 0.661" (16.76mm - 16.80mm); Height approximately 0.839" - 0.840" (21.30mm - 21.34mm)

Allowable Variations:

• Current rating: May be lower than 4.04 A if application requirements permit
• DC resistance: May be higher than 45.6mOhm if thermal and power dissipation budgets accommodate
• Operating temperature range: May be narrower than -40°C ~ 85°C if application operates within the substitute's specified range
• Core material: May differ (ferrite drum core vs. unspecified core type)
• Inductance test frequency: May differ from 10 kHz

The Bourns 1110-470K-RC meets all critical parameters while introducing allowable variations in current rating (2.8 A vs. 4.04 A) and DC resistance (62mOhm vs. 45.6mOhm).

Parameter Comparison

Engineering Selection Recommendations

Both the Murata 15473C and Bourns 1110-470K-RC maintain ROHS3 compliance and active product status, qualifying them for use in regulated applications. The selection between these components depends on application current requirements and thermal constraints.

The Murata 15473C provides higher current capacity at 4.04 A with lower DC resistance of 45.6mOhm, making it suitable for applications requiring maximum current handling and minimal power dissipation. The Bourns 1110-470K-RC operates at 2.8 A with 62mOhm DC resistance and extends the operating temperature range to -55°C ~ 105°C, accommodating applications with broader temperature requirements or lower current demands.

Physical dimensions are equivalent within manufacturing tolerances, ensuring PCB footprint compatibility. Both components are unshielded wirewound inductors with identical inductance and tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 1110-470K-RC replace the Murata 15473C in all applications?

A: Substitution is valid only when the application current requirement does not exceed 2.8 A. If the circuit requires the full 4.04 A rating of the 15473C, the Bourns substitute is not appropriate. Additionally, the higher DC resistance of the Bourns component (62mOhm vs. 45.6mOhm) results in increased power dissipation, which must be evaluated against thermal design constraints.

Q: Are the physical dimensions identical?

A: Dimensions are equivalent within standard manufacturing tolerances. The Murata 15473C measures 0.661" diameter and 0.839" height, while the Bourns 1110-470K-RC measures 0.660" diameter and 0.840" height. Both fit the same through-hole radial footprint on PCBs designed for either component.

Q: What is the difference in inductance test frequency?

A: The Murata 15473C is tested at 10 kHz, while the Bourns 1110-470K-RC is tested at 1 kHz. Both maintain the same 47 µH ±10% specification. The test frequency difference reflects manufacturer measurement methodology and does not affect functional equivalence at the specified inductance value.

Q: Do both parts meet the same compliance standards?

A: Both the Murata 15473C and Bourns 1110-470K-RC are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Compliance status is equivalent for regulated applications.

Q: Which part should be selected for extended temperature operation?

A: The Bourns 1110-470K-RC operates across -55°C ~ 105°C, providing a wider temperature range than the Murata 15473C (-40°C ~ 85°C). Selection depends on whether the application requires operation at temperatures below -40°C or above 85°C.