ASPI-0310FS-470M-T2 Equivalent & Substitute Parts

Part Overview

The ASPI-0310FS-470M-T2 is a 47 µH shielded drum core wirewound inductor manufactured by Abracon LLC, rated for 350 mA continuous current with 1.6Ω DC resistance. This surface mount component operates across -25°C to 120°C and is ROHS3 compliant. The part is currently in active production status with 684 units available in inventory.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit operation within the electrical and mechanical tolerances of alternative qualified inductors. Identification of equivalent parts ensures design continuity and manufacturing flexibility.

Substiute Parts

ASPI-0310FS-470M-T2

Abracon LLCIn Stock: 778ASPI-0310FS-470M-T2 Datasheet

Current PartRFQ

NR3012T470M

Taiyo YudenIn Stock: 2125NR3012T470M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ASPI-0310FS-470M-T2 is determined by the following critical parameters:

• Inductance Value: Must be 47 µH with ±20% tolerance
• Current Rating: Minimum 350 mA continuous current capability
• DC Resistance: Maximum 1.6Ω to maintain equivalent power dissipation characteristics
• Core Type: Drum core, wirewound construction with ferrite or nickel zinc ferrite material
• Shielding: Shielded configuration required
• Package Dimensions: 3.00mm x 3.00mm footprint with maximum height of 1.00mm
• Operating Temperature: -25°C to 120°C range
• Mounting: Surface mount technology
• Compliance: ROHS3 compliant

The substitute part NR3012T470M meets the inductance, tolerance, core type, shielding, operating temperature, mounting type, package footprint, and compliance requirements. However, the current rating of 280 mA is below the 350 mA specification of the primary part, and the DC resistance of 1.74Ω exceeds the 1.6Ω maximum threshold.

Parameter Comparison

Engineering Selection Recommendations

The ASPI-0310FS-470M-T2 is the preferred component for new designs due to its active product status and full compliance with specified electrical parameters. The part maintains adequate inventory levels (684 units) and meets all ROHS3 and REACH compliance requirements.

The NR3012T470M substitute exhibits critical deviations in current rating (280 mA versus 350 mA specification) and DC resistance (1.74Ω maximum versus 1.6Ω specification). Additionally, the NR3012T470M carries a "Not For New Designs" status, indicating manufacturer discontinuation trajectory. The increased package height (1.20mm versus 1.00mm) may present mechanical clearance constraints in space-limited applications.

Selection of NR3012T470M is limited to legacy design support or applications where current and resistance deviations fall within acceptable operational margins. New designs must utilize ASPI-0310FS-470M-T2 or identify alternative qualified inductors meeting the full parameter specification.

Frequently Asked Questions (FAQ)

Q: Can NR3012T470M directly replace ASPI-0310FS-470M-T2 in existing designs?

A: Direct replacement is not recommended. The NR3012T470M operates at 280 mA maximum current versus the 350 mA rating of ASPI-0310FS-470M-T2, and exhibits 1.74Ω DC resistance compared to 1.6Ω. These deviations affect thermal performance and current handling capacity. Substitution requires circuit-level analysis to confirm acceptable operation within reduced current margins.

Q: What is the significance of the "Not For New Designs" status on NR3012T470M?

A: This designation indicates the manufacturer has discontinued active development and is transitioning the part toward end-of-life. New designs must not incorporate this component. Existing production lines may continue using available inventory under controlled conditions.

Q: Are the package dimension differences between these parts critical?

A: The footprint dimensions (3.00mm x 3.00mm) are identical, ensuring PCB layout compatibility. However, the height difference (1.00mm versus 1.20mm) may affect clearance in constrained assemblies. Verify mechanical fit within your specific application envelope.

Q: Do both parts meet the same compliance standards?

A: Both ASPI-0310FS-470M-T2 and NR3012T470M are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Compliance certifications are equivalent across both components.

Q: What is the impact of different packaging formats (Tape & Reel versus Cut Tape)?

A: Tape & Reel (TR) packaging is optimized for automated assembly processes with continuous component feed. Cut Tape (CT) packaging requires manual handling and is typically used for lower-volume or legacy production runs. Packaging format does not affect electrical performance but impacts manufacturing workflow and cost structure.