5526-6 Equivalent & Substitute Parts Reference

Part Overview

The 5526-6 is a 222 nH unshielded wirewound surface mount inductor rated for 3 A continuous current, manufactured by API Delevan Inc. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The part operates across a temperature range of -55°C to 125°C and demonstrates a Q factor of 92 at 50 MHz with a self-resonant frequency of 730 MHz.

Substiute Parts

5526-6

API Delevan Inc.In Stock: 9695526-6 Datasheet

Current PartRFQ

AIAC-4125C-R222J-T

Abracon LLCIn Stock: 1215AIAC-4125C-R222J-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5526-6 is determined by the following critical parameters:

• Inductance value: 222 nH ±5%
• Current rating: minimum 3 A
• Type: Wirewound construction
• Core material: Air core
• Shielding: Unshielded configuration
• Mounting: Surface mount package
• Inductance measurement frequency: 50 MHz

The AIAC-4125C-R222J-T from Abracon LLC meets all mandatory electrical and mechanical substitution criteria. Both components share identical inductance specifications, tolerance, current rating, construction type, and core material. The substitute part maintains surface mount compatibility and operates within the required frequency parameters.

Parameter Comparison

Engineering Selection Recommendations

The AIAC-4125C-R222J-T qualifies as a direct electrical substitute for the 5526-6 based on matched inductance, tolerance, current rating, and core construction. The substitute part offers additional advantages: active product status ensures ongoing availability, ROHS3 compliance meets current regulatory requirements, and a higher Q factor (100 vs. 92 at 50 MHz) provides improved performance characteristics.

The substitute part operates at a reduced minimum temperature of -40°C compared to the original -55°C specification. Applications requiring operation below -40°C must retain the original 5526-6 or identify alternative sources. The AIAC-4125C-R222J-T features a smaller footprint (9.00 mm x 4.40 mm versus 10.67 mm x 6.35 mm) and lower profile (5.00 mm versus 5.97 mm), offering potential PCB layout advantages.

Frequently Asked Questions (FAQ)

Q: Can the AIAC-4125C-R222J-T replace the 5526-6 in all applications?

A: The AIAC-4125C-R222J-T is electrically equivalent for inductance, tolerance, and current rating. The minimum operating temperature differs: the substitute operates to -40°C while the original operates to -55°C. Applications requiring -55°C operation must use the original part or identify alternative sources.

Q: What is the significance of the Q factor difference between these parts?

A: The AIAC-4125C-R222J-T exhibits a Q factor of 100 at 50 MHz compared to 92 for the 5526-6. Higher Q indicates lower losses and improved efficiency at the test frequency. This represents a performance improvement for RF and high-frequency applications.

Q: Are there physical compatibility concerns with the smaller substitute part?

A: The AIAC-4125C-R222J-T is 1.67 mm shorter in length and 1.95 mm narrower than the 5526-6. PCB footprints designed for the original part may require adjustment. The substitute's smaller footprint typically allows direct mounting on existing pads without modification, but pad spacing should be verified against the substitute datasheet.

Q: What does RoHS3 compliance mean for the AIAC-4125C-R222J-T?

A: ROHS3 compliance indicates the substitute part meets current Restriction of Hazardous Substances regulations, restricting lead and other hazardous materials. The original 5526-6 is RoHS non-compliant. For applications subject to RoHS requirements, the substitute part is the appropriate selection.

Q: How do the self-resonant frequencies compare?

A: The 5526-6 exhibits a self-resonant frequency of 730 MHz while the AIAC-4125C-R222J-T operates at 600 MHz. For applications operating near or above 600 MHz, the frequency difference may affect circuit behavior. Circuit simulation or testing is appropriate for high-frequency applications near these resonant points.