ASPI-0840-R90N Equivalent & Substitute Parts

Part Overview

The ASPI-0840-R90N is a 900 nH shielded drum core wirewound inductor manufactured by Abracon LLC, rated for 7.9 A continuous current with a DC resistance of 7 mOhm. This component is designed for surface mount applications in compact form factors measuring 8.00mm × 8.00mm × 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-R90N

Abracon LLCIn Stock: 894ASPI-0840-R90N Datasheet

Current PartRFQ

ASPIAIG-F7030-1R0M-T

Abracon LLCIn Stock: 1144ASPIAIG-F7030-1R0M-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASPI-0840-R90N requires evaluation of inductance value, current handling capability, DC resistance characteristics, shielding requirements, and physical form factor compatibility. The primary substitute identified is the ASPIAIG-F7030-1R0M-T, which operates at a higher inductance value (1 µH versus 900 nH) but maintains shielded construction and surface mount compatibility.

The substitution logic is based on the following criteria:

• Inductance Range: The substitute operates at 1 µH, representing an 11% increase from the original 900 nH specification
• Current Capacity: The substitute provides 21.8 A continuous rating, exceeding the original 7.9 A requirement
• DC Resistance: The substitute maintains 5 mOhm maximum DCR, improving upon the original 7 mOhm specification
• Shielding: Both components feature shielded construction for electromagnetic containment
• Surface Mount Compatibility: Both components are surface mount devices with comparable physical dimensions
• Compliance Status: The substitute is active product status with AEC-Q200 automotive qualification and extended operating temperature range (-40°C to 125°C)

Parameter Comparison

Engineering Selection Recommendations

The ASPIAIG-F7030-1R0M-T serves as a direct substitute for the obsolete ASPI-0840-R90N based on the following engineering considerations:

Product Status and Availability: The substitute is classified as active product status with confirmed inventory availability (1126 pieces in stock), whereas the original part is obsolete. This ensures long-term procurement viability and supply chain continuity.

Compliance and Certification: The substitute carries AEC-Q200 automotive qualification, indicating compliance with automotive-grade reliability standards. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for restricted substance management.

Thermal Operating Range: The substitute extends the operating temperature range to -40°C to 125°C, providing 40°C additional high-temperature capability compared to the original specification of -40°C to 85°C. This enhancement supports applications requiring elevated thermal performance margins.

Electrical Performance: The substitute delivers superior electrical characteristics with 21.8 A continuous current rating (2.76× the original), 28 A saturation current (2.8× the original), and reduced DC resistance of 5 mOhm maximum (compared to 7 mOhm). These improvements provide enhanced current handling and reduced power dissipation.

Physical Form Factor: The substitute maintains comparable surface mount dimensions (7.80mm × 7.60mm × 3.10mm versus 8.00mm × 8.00mm × 4.20mm), with reduced height enabling improved board-level integration in space-constrained applications.

Inductance Tolerance: The substitute provides tighter inductance tolerance (±20% versus ±30%), supporting applications requiring improved frequency response consistency.

Frequently Asked Questions (FAQ)

Q: Can the ASPIAIG-F7030-1R0M-T directly replace the ASPI-0840-R90N in existing designs?

A: The ASPIAIG-F7030-1R0M-T is electrically compatible for applications where the 900 nH inductance value can accommodate an 11% increase to 1 µH. Circuit simulation and validation are required to confirm performance in the specific application context. The substitute's superior current rating, reduced DCR, and extended temperature range provide design margin improvements.

Q: What are the key differences in physical dimensions between these components?

A: The original ASPI-0840-R90N measures 8.00mm × 8.00mm with a maximum seated height of 4.20mm. The substitute ASPIAIG-F7030-1R0M-T measures 7.80mm × 7.60mm with a maximum seated height of 3.10mm. The substitute is slightly smaller in all dimensions, enabling improved board layout density.

Q: How do the inductance tolerances affect circuit performance?

A: The original part specifies ±30% inductance tolerance, while the substitute provides ±20% tolerance. The tighter tolerance of the substitute reduces inductance variation across the manufacturing population, supporting improved frequency response consistency and reduced circuit performance variation.

Q: Are both components suitable for automotive applications?

A: The original ASPI-0840-R90N does not carry automotive qualification. The substitute ASPIAIG-F7030-1R0M-T carries AEC-Q200 automotive qualification, making it suitable for automotive-grade applications requiring documented reliability standards.

Q: What is the impact of the 5 mOhm versus 7 mOhm DC resistance difference?

A: The substitute's 5 mOhm maximum DCR represents a 28.6% reduction in DC resistance compared to the original 7 mOhm specification. This reduction decreases resistive power dissipation (I²R losses) and improves thermal performance, particularly in high-current applications.

Q: Can the substitute operate at the extended temperature range of -40°C to 125°C?

A: Yes. The substitute is specified for -40°C to 125°C operation, providing 40°C additional high-temperature capability. The original part is limited to -40°C to 85°C. Applications requiring operation above 85°C must use the substitute.

Q: What packaging format is the substitute supplied in?

A: The ASPIAIG-F7030-1R0M-T is supplied in Tape & Reel (TR) format, standard for high-volume surface mount assembly operations. The original part packaging format is not specified in available documentation.