29L153C Equivalent & Substitute Parts

Part Overview

The 29L153C is a 15 µH shielded wirewound inductor manufactured by Murata Power Solutions Inc., rated for 1.23 A with a maximum DC resistance of 84mOhm. This component is designed for surface mount applications in the nonstandard corner terminal package format. The part is currently obsolete, making identification of suitable substitute components essential for ongoing production support and design continuity.

Substiute Parts

29L153C

Murata Power Solutions Inc.In Stock: 100929L153C Datasheet

Current PartRFQ

PA4301.153NLT

Pulse ElectronicsIn Stock: 1116PA4301.153NLT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 29L153C is determined by the following critical parameters:

• Inductance Value: Must be 15 µH to maintain circuit functionality
• Current Rating: Substitute must support minimum 1.23 A; higher ratings are acceptable
• DC Resistance: Must not exceed 84mOhm to preserve circuit performance characteristics
• Shielding: Must be shielded to maintain electromagnetic compatibility
• Package Footprint: Must accommodate 7.20mm x 7.20mm surface mount placement
• Operating Temperature: Must support the required thermal range
• RoHS Compliance: Must meet applicable regulatory requirements

The PA4301.153NLT from Pulse Electronics meets these substitution criteria with compatible electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The PA4301.153NLT is a direct substitute for the obsolete 29L153C based on the following factors:

• Electrical Compatibility: Identical inductance value of 15 µH with higher current rating (1.34 A vs. 1.23 A) provides design margin
• Mechanical Compatibility: Identical footprint dimensions (7.20mm x 7.20mm) with slightly lower seated height (3.00mm vs. 3.15mm) ensures PCB layout compatibility
• Regulatory Compliance: ROHS3 compliance exceeds the RoHS requirement of the original part; both parts maintain REACH Unaffected status
• Product Status: PA4301.153NLT is active production, ensuring long-term availability and supply chain continuity
• Temperature Performance: Extended operating range (-40°C ~ 125°C) provides additional thermal margin beyond the original specification (-40°C ~ 85°C)

Frequently Asked Questions (FAQ)

Q: Can the PA4301.153NLT be used as a direct replacement for the 29L153C without PCB modifications?

A: Yes. Both components share identical footprint dimensions (7.20mm x 7.20mm) and surface mount package format. The PA4301.153NLT has a slightly lower seated height (3.00mm vs. 3.15mm), which is compatible with existing PCB designs.

Q: What is the impact of the higher DC resistance in the PA4301.153NLT (89.7mOhm vs. 84mOhm)?

A: The 5.7mOhm increase in maximum DC resistance represents a 6.8% variance. This difference must be evaluated within the context of circuit design tolerances and thermal dissipation requirements. The substitute part's higher current rating (1.34 A vs. 1.23 A) provides compensating design margin.

Q: Are there compliance differences between the two parts?

A: Both parts maintain REACH Unaffected and Moisture Sensitivity Level 1 (Unlimited) status. The PA4301.153NLT carries ROHS3 compliance, which is a more recent regulatory standard than the RoHS compliance of the 29L153C, ensuring enhanced environmental compliance.

Q: What is the inductance tolerance of the PA4301.153NLT?

A: The PA4301.153NLT has an inductance tolerance of ±20%, which must be considered in circuit design calculations and performance validation.

Q: How does the extended operating temperature range of the PA4301.153NLT affect substitution suitability?

A: The PA4301.153NLT operates from -40°C to 125°C, compared to the 29L153C range of -40°C to 85°C. This extended range provides additional thermal margin and is fully compatible with applications requiring the original -40°C to 85°C specification.