Murata Power Solutions 1447508C Fixed Inductor - Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 1447508C is a 4.7 mH unshielded wirewound inductor rated for 800 mA continuous current with a maximum DC resistance of 1.6 Ohm. This through-hole radial component operates across the temperature range of -40°C to 85°C and is part of the 1400 series. The part maintains active product status with ROHS3 compliance and is suitable for general-purpose inductive filtering and energy storage applications in electronic circuits. Substitute parts are identified when equivalent inductance values, current ratings, and mounting configurations are available from alternative manufacturers while maintaining functional compatibility.

Substiute Parts

1447508C

Murata Power Solutions Inc.In Stock: 8161447508C Datasheet

Current PartRFQ

1130-472K-RC

Bourns Inc.In Stock: 29771130-472K-RC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1447508C is determined by the following critical parameters:

• Inductance value of 4.7 mH with ±10% tolerance
• Current rating equal to or greater than 800 mA
• Through-hole radial mounting configuration
• Unshielded construction
• Operating temperature range that encompasses or exceeds -40°C to 85°C
• ROHS3 compliance status

The Bourns 1130-472K-RC meets these substitution criteria. Both parts share identical inductance specifications, equivalent tolerance ratings, and compatible through-hole radial mounting. The Bourns substitute provides a higher current rating of 1 A, exceeding the 800 mA requirement of the original part. Both components maintain unshielded construction and ROHS3 compliance. Physical dimensions differ slightly, but both conform to radial vertical cylinder packaging standards suitable for standard PCB through-hole applications.

Parameter Comparison

Engineering Selection Recommendations

Both the Murata 1447508C and Bourns 1130-472K-RC maintain active product status with full ROHS3 compliance and REACH unaffected designation. The Bourns substitute provides extended operating temperature range coverage from -55°C to 105°C compared to the original -40°C to 85°C specification. The Bourns part delivers higher current capacity at 1 A versus 800 mA, providing additional design margin for applications requiring sustained current flow. DC resistance differential of 0.26 Ohm maximum between parts should be evaluated in circuits where resistive losses directly impact performance. Physical dimension increases in the Bourns substitute require PCB layout verification to ensure clearance compatibility with existing board designs. Both components are suitable for direct substitution in applications where the specified parameters align with circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 1130-472K-RC directly replace the Murata 1447508C in existing designs?

A: Direct substitution is possible when PCB layout accommodates the larger physical dimensions of the Bourns part (1.100" diameter versus 0.961" diameter). Electrical parameters remain compatible for applications operating within the 800 mA to 1 A current range and -40°C to 85°C temperature window.

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

A: The Murata part specifies 1.6 Ohm maximum DC resistance while the Bourns substitute specifies 1.86 Ohm maximum. This 0.26 Ohm difference results in proportionally higher resistive losses in the Bourns component. Circuit designs sensitive to inductor losses should calculate power dissipation impact at the intended operating current.

Q: Are both parts suitable for high-temperature applications?

A: The Murata 1447508C operates to 85°C maximum. The Bourns 1130-472K-RC extends to 105°C, providing additional thermal margin. Applications requiring operation above 85°C should specify the Bourns substitute.

Q: How do the core materials differ between these inductors?

A: The Murata part uses standard wirewound construction with unspecified core material. The Bourns part employs drum core ferrite construction with wirewound topology. Both maintain unshielded configuration and equivalent inductance performance at 1 kHz test frequency.

Q: What packaging considerations apply to substitution?

A: The Murata part ships in tray packaging while the Bourns substitute uses bulk packaging. Both employ identical through-hole radial vertical cylinder mounting configuration. PCB footprint compatibility requires verification of the increased physical dimensions of the Bourns component.