LMXS101DN470LTAS Equivalent & Substitute Parts

Part Overview

The LMXS101DN470LTAS is a 47 µH shielded drum core, wirewound inductor manufactured by KYOCERA AVX, rated for 2.1 A with a maximum DC resistance of 128 mOhm. This component is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support and procurement continuity. Substitute parts must maintain electrical performance within the specified parameter tolerances while accommodating potential variations in mechanical packaging and thermal operating ranges.

Substiute Parts

LMXS101DN470LTAS

KYOCERA AVXIn Stock: 741LMXS101DN470LTAS Datasheet

Current PartRFQ

CDRH104RNP-470NC

Sumida America Components Inc.In Stock: 2013CDRH104RNP-470NC Datasheet

MFR RecommendedRFQ

DR1040-470-R

Eaton - Electronics DivisionIn Stock: 1975DR1040-470-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LMXS101DN470LTAS are qualified based on the following electrical and mechanical criteria:

Primary Matching Parameters:

• Inductance value: 47 µH
• Inductance tolerance: ±30%
• DC resistance: 128 mOhm Max
• Shielding: Shielded configuration
• Inductance test frequency: 100 kHz
• Mounting type: Surface Mount
• RoHS3 compliance

Secondary Compatibility Factors:

• Current rating: Minimum 1.9 A (substitute parts rated at 1.9 A are acceptable as they meet saturation current specifications)
• Operating temperature range: Minimum -40°C ~ 100°C (acceptable for most applications; note LMXS101DN470LTAS extends to 125°C)
• Physical dimensions: Nonstandard package with height tolerance of 0.157" (4.00mm)

Parameter Comparison

Engineering Selection Recommendations

CDRH104RNP-470NC (Sumida America Components Inc.): This substitute is electrically equivalent with matching inductance, tolerance, and DC resistance specifications. The saturation current of 2.1 A meets the original part's current rating requirement. The primary design consideration is the reduced operating temperature upper limit of 100°C compared to the original 125°C specification. Physical dimensions are slightly smaller (10.20mm x 10.20mm versus 10.50mm x 10.30mm), which may require PCB layout verification. ROHS3 compliance and MSL 1 rating are maintained. This part is currently in active production with 2000 units available.

DR1040-470-R (Eaton - Electronics Division): This substitute provides the closest mechanical and thermal compatibility to the original LMXS101DN470LTAS. Dimensions and height are identical, and the operating temperature range extends to 125°C, matching the original specification. Electrical parameters are equivalent: 47 µH inductance, ±30% tolerance, 128 mOhm maximum DC resistance, and 2.1 A saturation current. The drum core, wirewound construction matches the original design. ROHS3 compliance and MSL 1 rating are maintained. This part is currently in active production with 1950 units available.

Frequently Asked Questions (FAQ)

Q: Can CDRH104RNP-470NC be used as a direct replacement for LMXS101DN470LTAS in all applications?

A: CDRH104RNP-470NC is electrically compatible for inductance, tolerance, and DC resistance. However, the operating temperature range is limited to -40°C ~ 100°C versus the original -40°C ~ 125°C. Applications requiring operation above 100°C require thermal analysis or selection of DR1040-470-R. Physical dimensions are also slightly smaller, requiring PCB layout verification.

Q: What is the significance of the saturation current (Isat) specification?

A: The saturation current indicates the current level at which the inductor's inductance begins to degrade. Both substitute parts specify 2.1 A Isat, which matches the original part's 2.1 A current rating, ensuring equivalent performance under rated conditions.

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

A: DR1040-470-R maintains the original -40°C ~ 125°C operating range and is suitable for high-temperature applications. CDRH104RNP-470NC is limited to -40°C ~ 100°C and should be evaluated for applications requiring sustained operation above 100°C.

Q: How do the physical dimensions affect PCB design?

A: CDRH104RNP-470NC has slightly reduced footprint dimensions (10.20mm x 10.00mm) compared to the original (10.50mm x 10.30mm). All three parts maintain identical height of 0.157" (4.00mm). PCB layout and component placement should be verified when substituting CDRH104RNP-470NC to ensure adequate clearance and thermal management.

Q: Are both substitute parts RoHS and REACH compliant?

A: Both substitute parts are ROHS3 compliant. DR1040-470-R carries REACH Unaffected status. CDRH104RNP-470NC shows Vendor Undefined REACH status; compliance verification with the supplier is recommended for applications requiring explicit REACH certification.