ASPI-0428S-2R2M-T Equivalent & Substitute Parts

Part Overview

The ASPI-0428S-2R2M-T is a 2.2 µH shielded drum core, wirewound inductor manufactured by Abracon LLC, rated for 2.04 A with a maximum DC resistance of 31.3 mOhm. This surface mount component is designed for applications requiring fixed inductance in compact form factors. The part is currently obsolete, necessitating identification of functionally equivalent alternatives to maintain design continuity and ensure component availability for production and repair applications.

Key Parameters

Parameter	Value
Inductance	2.2 µH
Current Rating	2.04 A
DC Resistance (Max)	31.3 mOhm
Core Material	Ferrite
Shielding	Shielded
Mounting Type	Surface Mount
Package Size	0.185" L x 0.185" W (4.70mm x 4.70mm)
Height (Max)	0.118" (3.00mm)
Operating Temperature	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the ASPI-0428S-2R2M-T is determined by strict equivalence across the following critical parameters:

Inductance Value: 2.2 µH (primary electrical specification)
Current Rating: 2.04 A (load capacity requirement)
DC Resistance: 31.3 mOhm maximum (power loss and thermal performance)
Core Type and Shielding: Ferrite core with shielding (electromagnetic performance and EMI containment)
Physical Dimensions: 0.185" x 0.185" x 0.118" maximum (PCB layout compatibility)
Mounting Type: Surface mount (assembly process compatibility)
Environmental Compliance: ROHS3 compliance and MSL rating (regulatory and manufacturing requirements)

The ASPI-0428S-2R2N-T meets all these criteria and is classified as a manufacturer-recommended substitute. The primary distinction is packaging format and product status transition from obsolete to active.

Parameter Comparison

Parameter	ASPI-0428S-2R2M-T (Main)	ASPI-0428S-2R2N-T (Substitute)
Inductance	2.2 µH	2.2 µH
Inductance Tolerance	±20%	±30%
Current Rating (Amps)	2.04 A	2.04 A
DC Resistance (Max)	31.3 mOhm	31.3 mOhm
Core Material	Ferrite	Ferrite
Shielding	Shielded	Shielded
Mounting Type	Surface Mount	Surface Mount
Package Size	0.185" L x 0.185" W (4.70mm x 4.70mm)	0.185" L x 0.185" W (4.70mm x 4.70mm)
Height (Max)	0.118" (3.00mm)	0.118" (3.00mm)
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active
Packaging Format	Nonstandard	Tape & Reel (TR)

Engineering Selection Recommendations

The ASPI-0428S-2R2N-T is the manufacturer-recommended substitute for the obsolete ASPI-0428S-2R2M-T. Both parts are manufactured by Abracon LLC within the ASPI-0428S series and maintain electrical and mechanical equivalence across all critical parameters. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), satisfying regulatory requirements for industrial and commercial applications. The primary operational difference is the inductance tolerance specification: the main part specifies ±20% tolerance while the substitute specifies ±30% tolerance. This tolerance variance must be evaluated against circuit design requirements to confirm acceptable performance margins.

The substitute part is supplied in standard Tape & Reel (TR) packaging format, which is the industry standard for automated assembly processes, whereas the main part uses nonstandard packaging. This packaging transition aligns with modern manufacturing practices and reduces handling complexity.

Frequently Asked Questions (FAQ)

Q: Can the ASPI-0428S-2R2N-T be used as a direct replacement for the ASPI-0428S-2R2M-T?

A: Yes. Both parts share identical inductance values (2.2 µH), current ratings (2.04 A), DC resistance specifications (31.3 mOhm max), core materials (ferrite), shielding characteristics, physical dimensions, and operating temperature ranges. The substitute is the manufacturer-recommended alternative for the obsolete part.

Q: What is the significance of the inductance tolerance difference (±20% vs ±30%)?

A: The main part specifies ±20% tolerance while the substitute specifies ±30% tolerance. This means the substitute part allows a wider range of actual inductance values around the 2.2 µH nominal specification. Circuit designs must verify that the wider tolerance of the substitute part remains within acceptable performance parameters for the intended application.

Q: Are there packaging compatibility considerations?

A: The main part uses nonstandard packaging while the substitute uses standard Tape & Reel (TR) format. Tape & Reel packaging is compatible with automated pick-and-place assembly equipment used in modern manufacturing. If manual assembly or legacy equipment is used, packaging format compatibility should be confirmed with assembly operations.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (unlimited moisture sensitivity level). Both are classified under ECCN EAR99 and HTSUS code 8504.50.8000, ensuring equivalent regulatory status for procurement and export purposes.

Q: What is the availability status of each part?

A: The ASPI-0428S-2R2M-T is obsolete with 757 pieces in current inventory. The ASPI-0428S-2R2N-T is active in production with 751 pieces in current inventory. For new designs and ongoing production, the active substitute part is recommended to ensure sustained component availability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message