ASPI-0840-R50N Equivalent & Substitute Parts

Part Overview

The ASPI-0840-R50N is a 500 nH shielded drum core wirewound inductor manufactured by Abracon LLC, rated for 8 A continuous current with 6 mOhm DC resistance. This component is designed for surface mount applications in compact form factors measuring 8.00mm x 8.00mm x 4.20mm (max height). The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and procurement needs.

Substiute Parts

ASPI-0840-R50N

Abracon LLCIn Stock: 1061ASPI-0840-R50N Datasheet

Current PartRFQ

ASPIAIG-F7020-R47M-T

Abracon LLCIn Stock: 1028ASPIAIG-F7020-R47M-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASPI-0840-R50N is based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value within tolerance band (470 nH to 530 nH acceptable range considering ±30% tolerance of main part and ±20% tolerance of substitute)
• Current rating equal to or exceeding 8 A continuous operation
• DC resistance comparable to 6 mOhm specification
• Shielded construction for electromagnetic containment
• Surface mount configuration
• Operating temperature range encompassing -40°C to 85°C minimum
• RoHS3 compliance for regulatory alignment

The ASPIAIG-F7020-R47M-T meets these criteria as an active production alternative with enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The ASPIAIG-F7020-R47M-T is qualified as a direct substitute for the obsolete ASPI-0840-R50N based on the following engineering factors:

Electrical Compatibility: The substitute part operates at 470 nH inductance, representing a 6% reduction from the 500 nH specification. This variance falls within the combined tolerance bands of both components (±30% for main part = 350–650 nH; ±20% for substitute = 376–564 nH), establishing electrical equivalence at the 100 kHz test frequency.

Current Handling: The substitute provides 17 A continuous current rating and 25 A saturation current, both exceeding the main part's 8 A and 11 A specifications. This enhanced capability ensures thermal and magnetic performance margins in existing circuit designs.

Regulatory Compliance: Both components maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with current manufacturing and environmental standards.

Product Status: The substitute is in active production status, providing long-term availability and supply chain stability compared to the obsolete main part.

Temperature Performance: The substitute extends the upper operating temperature limit to 125°C, providing additional thermal margin beyond the main part's 85°C maximum.

Dimensional Considerations: The substitute measures 7.80mm x 7.60mm x 2.05mm (max height), representing a more compact footprint than the main part's 8.00mm x 8.00mm x 4.20mm dimensions. PCB layout verification is required to confirm fit within existing mounting locations.

Frequently Asked Questions (FAQ)

Q: Can the ASPIAIG-F7020-R47M-T directly replace the ASPI-0840-R50N in existing designs?

A: Electrical substitution is valid based on inductance tolerance overlap and current rating superiority. Physical PCB layout verification is required due to dimensional differences (height reduction from 4.20mm to 2.05mm and footprint size reduction).

Q: What is the inductance variance between these parts?

A: The substitute operates at 470 nH versus the main part's 500 nH, a 6% reduction. Both values fall within acceptable tolerance bands when measured at 100 kHz test frequency.

Q: Are there compliance or certification differences?

A: Both parts are ROHS3 compliant with MSL 1 rating. The substitute carries AEC-Q200 automotive qualification and EAR99 export classification, providing additional certifications not specified for the main part.

Q: How do DC resistance values compare?

A: The main part specifies 6 mOhm; the substitute specifies 6.2 mOhm maximum. This 0.2 mOhm difference is negligible for most circuit applications and falls within typical measurement tolerances.

Q: What are the thermal operating range differences?

A: The main part operates from -40°C to 85°C; the substitute extends to -40°C to 125°C. The substitute provides 40°C additional upper temperature margin.

Q: Is the nonstandard package size a concern for substitution?

A: Both parts use nonstandard packages (main part: 8.00mm x 8.00mm; substitute: 7020 format at 7.80mm x 7.60mm). The substitute's smaller footprint and significantly reduced height require PCB layout confirmation but generally facilitate space optimization.

Q: What is the current rating relationship between these inductors?

A: The main part is rated for 8 A continuous; the substitute is rated for 17 A continuous. The substitute provides 2.1x current capacity, ensuring thermal performance headroom in existing applications.