ASPI-0315FSSA-3R3M-T3 Equivalent & Substitute Parts

Part Overview

The ASPI-0315FSSA-3R3M-T3 is a 3.3 µH shielded drum core wirewound inductor manufactured by Abracon LLC, rated for 1.18 A continuous current with 80mOhm DC resistance. This component is designed for surface mount applications in compact form factors (3.00mm x 3.00mm x 1.50mm). The part is currently obsolete, necessitating identification of functionally equivalent alternatives to maintain design continuity and ensure supply chain availability for new production runs and legacy system support.

Substiute Parts

ASPI-0315FSSA-3R3M-T3

Abracon LLCIn Stock: 1042ASPI-0315FSSA-3R3M-T3 Datasheet

Current PartRFQ

ASPI-0315FS-3R3M-T2

Abracon LLCIn Stock: 14074ASPI-0315FS-3R3M-T2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASPI-0315FSSA-3R3M-T3 is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Inductance value: 3.3 µH (±20% tolerance maintained)
• Current rating: minimum 1.18 A continuous
• DC resistance: functionally equivalent performance (80 mOhm baseline)
• Saturation current: minimum 1.3 A

Mechanical & Physical Compatibility Criteria:

• Mounting type: Surface Mount required
• Physical dimensions: 3.00mm x 3.00mm footprint with 1.50mm maximum height
• Package type: Nonstandard drum core configuration
• Shielding: Shielded construction

Regulatory & Environmental Criteria:

• RoHS3 compliance required
• MSL rating: 1 (Unlimited) acceptable
• Operating temperature range: minimum -25°C ~ 120°C or equivalent

The ASPI-0315FS-3R3M-T2 qualifies as a direct substitute based on matching inductance, identical physical dimensions, compatible current ratings, and superior DC resistance performance.

Parameter Comparison

Engineering Selection Recommendations

The ASPI-0315FS-3R3M-T2 is the qualified substitute for the obsolete ASPI-0315FSSA-3R3M-T3 based on the following engineering factors:

Product Status & Availability: The ASPI-0315FS-3R3M-T2 maintains Active product status with 14,036 units in stock, compared to the obsolete ASPI-0315FSSA-3R3M-T3. This ensures long-term supply chain continuity and eliminates end-of-life component sourcing constraints.

Electrical Performance: The substitute part exceeds the original specification in current rating (1.36 A vs. 1.18 A) and provides superior DC resistance performance (10 mOhm Max vs. 80 mOhm). Saturation current ratings are equivalent (1.32 A vs. 1.3 A). Inductance value and tolerance remain identical at 3.3 µH ±20%.

Physical & Mechanical Compatibility: Both parts share identical footprint dimensions (3.00mm x 3.00mm) and maximum seated height (1.50mm), ensuring direct PCB layout compatibility without redesign requirements.

Regulatory Compliance: Both components maintain ROHS3 compliance and MSL rating 1 (Unlimited), satisfying environmental and moisture sensitivity requirements. Operating temperature range of the substitute (-25°C ~ 120°C) exceeds the original specification (-30°C ~ 100°C) in the upper range.

Packaging Consideration: The substitute is supplied in Tape & Reel (TR) packaging, standard for production environments, whereas the original packaging specification is not detailed.

Frequently Asked Questions (FAQ)

Q: Can the ASPI-0315FS-3R3M-T2 be used as a direct replacement for the ASPI-0315FSSA-3R3M-T3 without PCB modifications?

A: Yes. Both parts share identical physical dimensions (3.00mm x 3.00mm footprint, 1.50mm maximum height) and mounting type (Surface Mount). No PCB layout changes are required for mechanical compatibility.

Q: What are the key electrical differences between these two inductors?

A: The substitute provides improved DC resistance (10 mOhm Max vs. 80 mOhm) and higher continuous current rating (1.36 A vs. 1.18 A). Inductance value (3.3 µH), tolerance (±20%), and saturation current (approximately 1.3 A) remain functionally equivalent.

Q: Why is the original part obsolete and what does this mean for my design?

A: The ASPI-0315FSSA-3R3M-T3 has reached end-of-life status and is no longer manufactured. The ASPI-0315FS-3R3M-T2 is the active equivalent, ensuring continued availability for new production and future procurement.

Q: Are there any temperature range limitations when substituting this part?

A: The substitute operates across -25°C ~ 120°C, which covers the original operating range of -30°C ~ 100°C. If your application requires operation below -25°C, the original specification must be verified against actual system requirements.

Q: What is the difference between the core materials (Nickel Zinc Ferrite vs. Ferrite)?

A: Both are ferrite-based core materials suitable for this inductance and frequency range. The substitute uses standard ferrite material while the original specified Nickel Zinc ferrite. Both materials are compatible with the electrical specifications and shielded drum core construction.

Q: Does the packaging format (Tape & Reel) affect component selection?

A: Tape & Reel packaging is standard for surface mount production environments and is compatible with automated assembly equipment. This format is preferred for manufacturing operations.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the ASPI-0315FSSA-3R3M-T3 and ASPI-0315FS-3R3M-T2 are ROHS3 compliant and maintain MSL rating 1 (Unlimited), satisfying environmental and regulatory requirements.