Murata Power Solutions 1447427C Fixed Inductor - Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 1447427C is a 470 µH unshielded wirewound inductor rated for 2.7 A continuous current with a maximum DC resistance of 160mOhm. This through-hole radial component operates across -40°C to 85°C and is designed for applications requiring fixed inductance filtering, energy storage, and signal conditioning in power conversion circuits. The part maintains Active product status with full ROHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent inductance values, compatible current ratings, and matching mechanical form factors are available from alternative manufacturers while maintaining electrical performance within specified tolerances.

Substiute Parts

1447427C

Murata Power Solutions Inc.In Stock: 8381447427C Datasheet

Current PartRFQ

1130-471K-RC

Bourns Inc.In Stock: 9791130-471K-RC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1447427C is determined by the following critical parameters:

• Inductance Value: 470 µH with ±10% tolerance
• Current Rating: Minimum 2.7 A continuous current capability
• Mounting Configuration: Through-hole radial, vertical cylinder form factor
• Shielding Classification: Unshielded construction
• Electrical Compliance: ROHS3 compliant, REACH unaffected status

The Bourns 1130-471K-RC meets these substitution criteria with matching 470 µH inductance, higher current rating (4 A), compatible through-hole radial package, and equivalent compliance certifications. The substitute part provides enhanced current capacity and extended operating temperature range while maintaining the same mechanical footprint compatibility and electrical specifications required for direct circuit board replacement.

Parameter Comparison

Engineering Selection Recommendations

Both the Murata 1447427C and Bourns 1130-471K-RC maintain Active product status with full ROHS3 compliance and REACH unaffected certification, qualifying both for use in regulated applications. The Bourns substitute provides increased current capacity (4 A versus 2.7 A) and extended operating temperature range (-55°C to 105°C versus -40°C to 85°C), offering design margin for thermal and load stress conditions. DC resistance differential (187mOhm versus 160mOhm) remains within acceptable engineering tolerance for most filtering and energy storage applications. Selection between these parts depends on circuit current requirements and thermal operating environment specifications.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 1130-471K-RC directly replace the Murata 1447427C in existing designs?

A: Yes. Both parts share identical 470 µH inductance with ±10% tolerance, matching through-hole radial vertical cylinder package geometry, and equivalent unshielded construction. The Bourns part provides higher current rating and extended temperature range without requiring circuit board layout modifications.

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

A: The Murata part specifies 160mOhm maximum DCR while the Bourns substitute specifies 187mOhm maximum. This 27mOhm difference represents approximately 17% higher resistance in the Bourns part. For applications sensitive to resistive losses, verify that the substitute's DCR remains acceptable for power dissipation and efficiency calculations.

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

A: The Murata 1447427C operates from -40°C to 85°C. The Bourns 1130-471K-RC extends this range to -55°C to 105°C, providing broader thermal coverage. Selection depends on the specific operating environment temperature requirements of your application.

Q: Do packaging differences affect circuit board assembly?

A: Both parts use through-hole radial vertical cylinder mounting with compatible mechanical footprints. The Bourns part has slightly larger dimensions (1.100" diameter versus 0.961" diameter), requiring verification that board layout spacing accommodates the larger form factor.

Q: What compliance certifications apply to both parts?

A: Both the Murata 1447427C and Bourns 1130-471K-RC maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for restricted substance control in electronic component manufacturing and distribution.