ASPI-0428S-6R8M-T Equivalent & Substitute Parts

Part Overview

The ASPI-0428S-6R8M-T is a 6.8 µH shielded drum core, wirewound inductor manufactured by Abracon LLC, rated for 1.12 A with a maximum DC resistance of 108.9 mOhm. This surface mount component is designed for applications requiring fixed inductance in compact nonstandard packages. The part is currently obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications. Active equivalent parts maintain identical electrical performance while offering improved availability and current product support.

Key Parameters

Parameter	Value
Inductance	6.8 µH
Current Rating	1.12 A
DC Resistance (Max)	108.9 mOhm
Core Material	Ferrite
Shielding	Shielded
Mounting Type	Surface Mount
Package Type	Nonstandard
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
Test Frequency	100 kHz

Substitute Part Grouping Explanation

Substitution of the ASPI-0428S-6R8M-T is determined by strict equivalence across the following critical parameters:

Inductance value (6.8 µH) must remain constant. Current rating (1.12 A) and DC resistance (108.9 mOhm maximum) define the electrical load capacity and power dissipation characteristics. Core material (ferrite) and shielding configuration ensure electromagnetic performance in the intended application. Physical dimensions (0.185" x 0.185" x 0.118" maximum height) and surface mount packaging are mandatory for PCB compatibility. Operating temperature range (-40°C ~ 85°C) and test frequency (100 kHz) establish the performance envelope.

The ASPI-0428S-6R8N-T qualifies as a direct substitute, maintaining all critical electrical and mechanical parameters while offering active product status and improved supply chain availability.

Parameter Comparison

Parameter	ASPI-0428S-6R8M-T (Main)	ASPI-0428S-6R8N-T (Substitute)
Manufacturer	Abracon LLC	Abracon LLC
Series	ASPI-0428S	ASPI-0428S
Inductance	6.8 µH	6.8 µH
Inductance Tolerance	±20%	±30%
Current Rating	1.12 A	1.12 A
DC Resistance (Max)	108.9 mOhm	108.9 mOhm
Core Material	Ferrite	Ferrite
Shielding	Shielded	Shielded
Mounting Type	Surface Mount	Surface Mount
Package Type	Nonstandard	Nonstandard
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
Test Frequency	100 kHz	100 kHz
Product Status	Obsolete	Active
Packaging Format	Bulk	Tape & Reel (TR)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The ASPI-0428S-6R8N-T is the manufacturer-recommended substitute for the obsolete ASPI-0428S-6R8M-T. Both parts maintain identical electrical specifications (6.8 µH inductance, 1.12 A current rating, 108.9 mOhm maximum DC resistance) and physical dimensions required for direct PCB replacement.

The substitute part offers active product status with current manufacturing support and improved supply chain availability. Both parts carry ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications.

The inductance tolerance difference (±20% versus ±30%) reflects manufacturing process variations within the same product family. Circuit design margins should account for the wider tolerance of the substitute part if inductance precision is critical to application performance.

Packaging format differs between bulk (main part) and tape & reel (substitute), which affects handling and assembly processes but does not impact electrical or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the ASPI-0428S-6R8N-T replace the ASPI-0428S-6R8M-T in existing designs?

A: Yes. Both parts share identical inductance (6.8 µH), current rating (1.12 A), DC resistance (108.9 mOhm maximum), core material (ferrite), shielding configuration, and physical dimensions (0.185" x 0.185" x 0.118" maximum height). Direct PCB substitution is electrically and mechanically compatible.

Q: What is the difference in inductance tolerance between these parts?

A: The main part specifies ±20% tolerance, while the substitute specifies ±30%. Both tolerances are measured at 100 kHz. Circuit designs should verify that the wider tolerance of the substitute part remains acceptable for the intended application.

Q: Are there compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical regulatory classifications (ECCN: EAR99, HTSUS: 8504.50.8000). Moisture sensitivity level is 1 (unlimited) for both parts.

Q: What packaging formats are available?

A: The main part (ASPI-0428S-6R8M-T) is supplied in bulk packaging. The substitute (ASPI-0428S-6R8N-T) is supplied in tape & reel format. Tape & reel packaging is standard for automated assembly processes and offers improved handling and traceability.

Q: Is the substitute part currently in stock?

A: The ASPI-0428S-6R8N-T is an active product with current manufacturing support. The main part is obsolete. Availability should be verified with the supplier for specific lead times and quantities.

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