Equivalent & Substitute Parts for 29L472C

Part Overview

The Murata Power Solutions 29L472C is a 4.7 µH shielded wirewound inductor rated for 2.2 A with a maximum DC resistance of 31 mOhm. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part is designed for surface mount assembly in nonstandard packaging and operates across the temperature range of -40°C to 85°C.

Substiute Parts

29L472C

Murata Power Solutions Inc.In Stock: 112429L472C Datasheet

Current PartRFQ

BPSC000707304R7MS0

Pulse ElectronicsIn Stock: 1197BPSC000707304R7MS0 Datasheet

MFR RecommendedRFQ

BPSC000707304R7TS0

Pulse ElectronicsIn Stock: 856BPSC000707304R7TS0 Datasheet

MFR RecommendedRFQ

PA4301.472NLT

Pulse ElectronicsIn Stock: 1038PA4301.472NLT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 29L472C is determined by the following critical parameters: inductance value (4.7 µH), DC resistance (31 mOhm maximum), shielding requirement, surface mount configuration, and nonstandard packaging. All substitute parts must maintain these electrical and mechanical specifications to ensure functional equivalence in the target application.

The three identified substitutes from Pulse Electronics meet these core requirements while offering active product status and improved compliance certifications. Substitution logic is based strictly on matching inductance, DCR tolerance, shielding type, and physical mounting compatibility.

Parameter Comparison

Engineering Selection Recommendations

All three Pulse Electronics substitutes are active products with ROHS3 compliance and REACH unaffected status, providing regulatory continuity for the obsolete 29L472C.

BPSC000707304R7MS0 and BPSC000707304R7TS0 are ferrite core inductors with identical inductance and DCR specifications to the original part. Both maintain the 31 mOhm maximum DC resistance and shielded configuration. The primary difference between these two is inductance tolerance (±20% versus ±30%) and saturation current (1.92 A for both). These parts are suitable for applications where the original 2.2 A current rating can be accommodated by the 1.92 A saturation specification.

PA4301.472NLT is a drum core wirewound inductor with ferrite material, matching the original part's wirewound construction type. This part offers a higher current rating of 2.3 A and an extended operating temperature range to 125°C. The DC resistance is specified at 40.3 mOhm maximum, which exceeds the original 31 mOhm specification. This part is appropriate for applications requiring higher temperature operation or where the slightly elevated DCR is acceptable.

Frequently Asked Questions (FAQ)

Q: Can BPSC000707304R7MS0 or BPSC000707304R7TS0 be used as direct replacements for 29L472C?

A: Both parts meet the core electrical requirements: 4.7 µH inductance, 31 mOhm maximum DCR, and shielded surface mount configuration. However, the saturation current of 1.92 A is lower than the original 2.2 A rating. Selection depends on whether the application circuit can operate within the 1.92 A saturation limit.

Q: What is the difference between BPSC000707304R7MS0 and BPSC000707304R7TS0?

A: Both parts are electrically equivalent with identical inductance and DCR. The difference is inductance tolerance: BPSC000707304R7MS0 specifies ±20% tolerance, while BPSC000707304R7TS0 specifies ±30% tolerance. Selection depends on circuit tolerance requirements.

Q: Why does PA4301.472NLT have a higher DC resistance specification?

A: PA4301.472NLT is specified at 40.3 mOhm maximum DCR compared to 31 mOhm for the original part. This reflects the different core material and construction method (drum core wirewound versus standard wirewound). Applications sensitive to DCR-induced losses should verify compatibility before selection.

Q: Are all substitutes compatible with the original nonstandard package footprint?

A: All substitutes are specified as nonstandard packaging with surface mount mounting type. Physical dimensions vary slightly: BPSC parts measure 0.264" × 0.264" (6.70mm × 6.70mm) with 0.118" height, while PA4301.472NLT measures 0.283" × 0.283" (7.20mm × 7.20mm) with 0.118" height. PCB layout verification is required to confirm mechanical fit.

Q: What is the operating temperature advantage of PA4301.472NLT?

A: PA4301.472NLT operates from -40°C to 125°C, compared to the original -40°C to 85°C range. This extended upper temperature limit is suitable for applications in elevated thermal environments. BPSC substitutes operate from -30°C to 100°C.