5526R-11 Equivalent & Substitute Parts

Part Overview

The 5526R-11 is a fixed unshielded wirewound inductor manufactured by API Delevan Inc., designed for surface mount applications. This part is rated for 491 nH inductance with a 2 A current capacity and operates across a temperature range of -55°C to 125°C. The product is classified as obsolete, necessitating identification of functionally equivalent alternatives for continued system support and new design implementations.

Substiute Parts

5526R-11

API Delevan Inc.In Stock: 7715526R-11 Datasheet

Current PartRFQ

AIAC-4125C-R491J-T

Abracon LLCIn Stock: 1554AIAC-4125C-R491J-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5526R-11 is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Equivalence Parameters:

• Inductance: 491 nH
• Tolerance: ±5%
• Current Rating: 2 A
• Type: Wirewound
• Material - Core: Air
• Shielding: Unshielded
• Mounting Type: Surface Mount
• Operating Temperature Range: Must support the specified range or extended range

The AIAC-4125C-R491J-T meets these critical equivalence criteria and qualifies as a direct substitute for the 5526R-11. Both components share identical inductance values, current ratings, core materials, and mounting configurations.

Parameter Comparison

Engineering Selection Recommendations

The AIAC-4125C-R491J-T from Abracon LLC is a functional equivalent to the obsolete 5526R-11. Both components achieve ROHS3 compliance and MSL 1 rating, ensuring compatibility with current manufacturing and environmental standards. The substitute part is currently in active production status, providing supply chain continuity and long-term availability for system integration.

The 5526R-11 maintains compliance with REACH regulations as REACH Unaffected, a status preserved in the AIAC-4125C-R491J-T. Both components fall under ECCN EAR99 classification, confirming equivalent regulatory standing.

Frequently Asked Questions (FAQ)

Q: Can the AIAC-4125C-R491J-T replace the 5526R-11 in existing designs?

A: Yes. The AIAC-4125C-R491J-T matches the critical electrical parameters: 491 nH inductance, ±5% tolerance, 2 A current rating, and unshielded wirewound construction. Surface mount compatibility is identical.

Q: What differences exist between these inductors?

A: Key differences include operating temperature minimum (-40°C vs. -55°C), self-resonant frequency (400 MHz vs. 535 MHz), Q factor at 50 MHz (100 vs. 95), and specified DC resistance (40 mOhm Max vs. not specified). The substitute part has a lower minimum operating temperature; designs requiring operation below -40°C must retain the original 5526R-11 or identify alternative sources.

Q: Are the physical dimensions identical?

A: No. The 5526R-11 measures 0.420" L x 0.235" W x 0.250" height (10.67mm x 5.97mm x 6.35mm). The AIAC-4125C-R491J-T measures 0.354" L x 0.173" W x 0.197" height (9.00mm x 4.40mm x 5.00mm). Verify PCB layout accommodates the smaller footprint before substitution.

Q: Is packaging format a concern for substitution?

A: The 5526R-11 packaging information is not specified in available data. The AIAC-4125C-R491J-T is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount production. Confirm packaging requirements with your procurement department.

Q: Do both inductors meet the same regulatory requirements?

A: Yes. Both are ROHS3 compliant, REACH Unaffected, and classified as EAR99 under ECCN. Both achieve MSL 1 rating, confirming identical moisture sensitivity handling requirements.