ASPI-0315FSSA-470M-T3 Equivalent & Substitute Parts

Part Overview

The ASPI-0315FSSA-470M-T3 is a 47 µH shielded drum core wirewound inductor manufactured by Abracon LLC, rated for 330 mA continuous current with 1.2Ω DC resistance. This component is designed for surface mount applications in compact 3.00mm x 3.00mm form factors. The part is currently obsolete, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility within specified parameter tolerances.

Substiute Parts

ASPI-0315FSSA-470M-T3

Abracon LLCIn Stock: 1085ASPI-0315FSSA-470M-T3 Datasheet

Current PartRFQ

ASPI-0315FS-470M-T2

Abracon LLCIn Stock: 3061ASPI-0315FS-470M-T2 Datasheet

DirectRFQ

LMLP03B3M470CTAR

KYOCERA AVXIn Stock: 856LMLP03B3M470CTAR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ASPI-0315FSSA-470M-T3 is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 47 µH (±20% tolerance band)
• Inductance test frequency: 100 kHz
• Shielding requirement: Shielded configuration
• Mounting type: Surface Mount
• Package footprint: 3.00mm x 3.00mm
• Maximum seated height: 1.50mm

Secondary Electrical Criteria:

• Current rating must meet or exceed 330 mA continuous operation
• Saturation current (Isat) must support circuit peak current demands
• DC resistance within acceptable circuit performance parameters
• Operating temperature range must encompass application requirements

Compliance Requirements:

• RoHS3 compliance mandatory
• MSL rating of 1 or equivalent
• REACH compliance status

The substitute parts listed below satisfy these core parameters while maintaining functional equivalence for the discontinued ASPI-0315FSSA-470M-T3.

Parameter Comparison

Engineering Selection Recommendations

ASPI-0315FS-470M-T2 (Abracon LLC)

This direct Abracon alternative maintains the same manufacturer lineage and shares identical inductance, tolerance, and physical dimensions. The ASPI-0315FS-470M-T2 offers 350 mA current rating, exceeding the original 330 mA specification. DC resistance increases to 1.625Ω maximum, representing a 35% increase over the original 1.2Ω. Operating temperature range extends to 120°C. Product status is active with established supply chain availability. Selection of this part is appropriate when the higher DC resistance is acceptable within circuit design margins and the extended temperature range provides operational benefit.

LMLP03B3M470CTAR (KYOCERA AVX)

This KYOCERA AVX alternative provides the same 47 µH inductance and physical footprint with active product status. Current rating of 300 mA falls 30 mA below the original specification, requiring circuit analysis to confirm adequacy for peak current demands. DC resistance of 1.34Ω represents a 12% increase. Operating temperature range extends to 125°C with lower temperature limit of -40°C. Selection of this part is appropriate when current rating headroom exists in the application and the superior temperature range is required.

Both substitute parts maintain RoHS3 compliance, MSL 1 rating, and identical package dimensions, ensuring PCB layout compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can ASPI-0315FS-470M-T2 directly replace ASPI-0315FSSA-470M-T3 in all applications?

A: Direct replacement is possible when circuit design accommodates the increased DC resistance (1.625Ω maximum versus 1.2Ω). The higher current rating (350 mA) provides margin above the original 330 mA specification. Verify that voltage drop across the inductor and thermal dissipation remain within acceptable limits for your specific application.

Q: What is the impact of the 30 mA current rating reduction with LMLP03B3M470CTAR?

A: The LMLP03B3M470CTAR is rated for 300 mA continuous current versus the original 330 mA. This part is suitable only when circuit peak and continuous current demands do not exceed 300 mA. Saturation current (Isat) of 320 mA provides limited margin above continuous rating. Circuit analysis is required to confirm compatibility.

Q: Are the physical dimensions identical across all three parts?

A: Yes. All three parts share identical footprint dimensions of 3.00mm x 3.00mm with maximum seated height of 1.50mm. PCB layout and land pattern modifications are not required for substitution.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. Both ASPI-0315FS-470M-T2 and LMLP03B3M470CTAR are ROHS3 compliant with MSL 1 rating, matching the original part's compliance profile. Both are suitable for applications requiring these certifications.

Q: How does the extended operating temperature range affect part selection?

A: ASPI-0315FS-470M-T2 extends the upper temperature limit to 120°C (versus 100°C original), while LMLP03B3M470CTAR extends to 125°C with lower limit of -40°C. Selection depends on application temperature requirements. If the original -30°C to 100°C range is sufficient, temperature range is not a differentiating factor.

Q: What is the significance of the 14 MHz self-resonant frequency specification for ASPI-0315FS-470M-T2?

A: The self-resonant frequency indicates the frequency at which the inductor's parasitic capacitance resonates with its inductance. At 14 MHz, this part maintains inductive behavior well into the RF spectrum. This specification is not provided for the original part or the KYOCERA AVX alternative, limiting comparative analysis for high-frequency applications.