ASPI-0312FSSA-100M-T4 Equivalent & Substitute Parts

Part Overview

The ASPI-0312FSSA-100M-T4 is a 10 µH shielded drum core wirewound inductor manufactured by Abracon LLC, rated for 700 mA continuous current with 290mOhm 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, tolerance, core shielding, and physical footprint while offering improved product status and extended temperature operating range.

Substiute Parts

ASPI-0312FSSA-100M-T4

Abracon LLCIn Stock: 975ASPI-0312FSSA-100M-T4 Datasheet

Current PartRFQ

ASPI-0312FS-100M-T2

Abracon LLCIn Stock: 806ASPI-0312FS-100M-T2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The ASPI-0312FS-100M-T2 qualifies as a direct substitute based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Inductance: 10 µH (identical)
• Inductance Tolerance: ±20% (identical)
• DC Resistance: 290mOhm (identical)
• Core Type: Drum Core, Wirewound, Shielded (identical)
• Mounting Type: Surface Mount (identical)
• Physical Footprint: 3.00mm x 3.00mm x 1.20mm (identical)
• Inductance Test Frequency: 100 kHz (identical)
• RoHS Compliance: ROHS3 Compliant (identical)
• REACH Status: REACH Unaffected (identical)

Differing Parameters:

• Current Rating: 630 mA (substitute) vs. 700 mA (main part)
• Current Saturation: 540mA (substitute) vs. 730mA (main part)
• Operating Temperature: -25°C ~ 120°C (substitute) vs. -30°C ~ 100°C (main part)
• Product Status: Active (substitute) vs. Obsolete (main part)
• Packaging: Tape & Reel (substitute) vs. Nonstandard (main part)

Parameter Comparison

Engineering Selection Recommendations

The ASPI-0312FS-100M-T2 is the active equivalent for the obsolete ASPI-0312FSSA-100M-T4. Selection of the substitute part is supported by:

• Active product status ensuring long-term availability and manufacturing support
• Identical inductance, tolerance, DC resistance, and physical footprint
• ROHS3 compliance and REACH unaffected status matching regulatory requirements
• Extended operating temperature range (-25°C ~ 120°C) providing broader thermal operating envelope

Application suitability requires verification that the 630 mA current rating and 540mA saturation current of the substitute part satisfy circuit requirements, as these values are lower than the main part specifications.

Frequently Asked Questions (FAQ)

Q: Can ASPI-0312FS-100M-T2 be used as a direct replacement for ASPI-0312FSSA-100M-T4?

A: The substitute part is mechanically and electrically compatible for applications where the 630 mA current rating is sufficient. The identical inductance, tolerance, DC resistance, and physical dimensions ensure PCB compatibility and electrical performance equivalence at rated current levels below 630 mA.

Q: What are the key differences between these parts?

A: The primary differences are current rating (630 mA vs. 700 mA), saturation current (540mA vs. 730mA), operating temperature range (-25°C ~ 120°C vs. -30°C ~ 100°C), and product status (Active vs. Obsolete). Core material differs slightly (Ferrite vs. Nickel Zinc Ferrite).

Q: Does the packaging difference affect compatibility?

A: The substitute part is supplied in Tape & Reel (TR) packaging versus nonstandard packaging for the main part. This affects procurement and handling but does not impact electrical or mechanical PCB compatibility.

Q: Are both parts RoHS and REACH compliant?

A: Yes, both ASPI-0312FSSA-100M-T4 and ASPI-0312FS-100M-T2 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What is the moisture sensitivity level for the substitute part?

A: The ASPI-0312FS-100M-T2 has MSL Not Applicable, compared to MSL 1 (Unlimited) for the main part, indicating no moisture sensitivity constraints for the substitute.