ASPI-0310FSSA-100M-T4 Equivalent & Substitute Parts

Part Overview

The ASPI-0310FSSA-100M-T4 is a 10 µH shielded drum core wirewound inductor manufactured by Abracon LLC, rated for 670 mA continuous current with 450mOhm DC resistance. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design support and procurement continuity. The substitute part maintains the same inductance value and core material while offering improved electrical performance characteristics.

Substiute Parts

ASPI-0310FSSA-100M-T4

Abracon LLCIn Stock: 995ASPI-0310FSSA-100M-T4 Datasheet

Current PartRFQ

ASPI-0310FS-100M-T2

Abracon LLCIn Stock: 862ASPI-0310FS-100M-T2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The ASPI-0310FS-100M-T2 qualifies as a direct substitute based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Inductance value: 10 µH (identical)
• Inductance tolerance: ±20% (identical)
• Core material: Nickel Zinc Ferrite (NiZn) (identical)
• Shielding configuration: Shielded (identical)
• Physical dimensions: 3.00mm x 3.00mm x 1.00mm (identical)
• Mounting type: Surface Mount (identical)
• RoHS compliance: ROHS3 Compliant (identical)
• Moisture sensitivity: MSL 1 (identical)

Enhanced Performance Characteristics:

• Current rating increased from 670 mA to 900 mA
• DC resistance reduced from 450mOhm to 350mOhm
• Saturation current increased from 540mA to 600mA
• Operating temperature range expanded from -30°C ~ 100°C to -25°C ~ 120°C
• Product status: Active (versus obsolete)

Parameter Comparison

Engineering Selection Recommendations

The ASPI-0310FS-100M-T2 is the appropriate substitute for the obsolete ASPI-0310FSSA-100M-T4. Selection is justified on the following basis:

Compliance and Availability: The substitute maintains ROHS3 compliance and REACH unaffected status identical to the original part. Active product status ensures ongoing availability and supply chain continuity, eliminating procurement risk associated with obsolete components.

Electrical Compatibility: Both parts share identical inductance specifications (10 µH ±20%) and core material composition (Nickel Zinc Ferrite). The substitute provides superior electrical performance with reduced DC resistance (350mOhm versus 450mOhm) and increased current handling capability (900 mA versus 670 mA), making it suitable for applications originally designed for the main part.

Mechanical Compatibility: Identical physical dimensions (3.00mm x 3.00mm x 1.00mm) and surface mount configuration ensure direct PCB layout compatibility without redesign requirements.

Frequently Asked Questions (FAQ)

Q: Can ASPI-0310FS-100M-T2 be used as a direct replacement for ASPI-0310FSSA-100M-T4?

A: Yes. Both parts share identical inductance value, tolerance, core material, shielding, physical dimensions, and mounting type. The substitute offers improved electrical performance with lower DC resistance and higher current rating.

Q: What are the key differences between these two parts?

A: The primary differences are product status (active versus obsolete), current rating (900 mA versus 670 mA), DC resistance (350mOhm versus 450mOhm), and operating temperature range (-25°C ~ 120°C versus -30°C ~ 100°C). The substitute provides enhanced performance across all electrical parameters.

Q: Are there packaging differences?

A: The main part uses nonstandard packaging, while the substitute is supplied in Tape & Reel (TR) format. Both are surface mount components with identical footprints.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: Why is the original part obsolete?

A: Product obsolescence is determined by the manufacturer. The active substitute provides equivalent or superior functionality for all applications originally designed for the ASPI-0310FSSA-100M-T4.