API Delevan 5526-3 Equivalent & Substitute Parts

Part Overview

The API Delevan 5526-3 is a 130 nH unshielded wirewound inductor rated for 3 A continuous current, designed for surface mount applications. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing production support and design continuity. The part operates across a temperature range of -55°C to 125°C and demonstrates a Q factor of 87 at 50 MHz with a self-resonant frequency of 900 MHz.

Substiute Parts

5526-3

API Delevan Inc.In Stock: 10705526-3 Datasheet

Current PartRFQ

744918213

Würth ElektronikIn Stock: 1716744918213 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the API Delevan 5526-3 is determined by strict equivalence across the following parameters:

• Inductance value: 130 nH ±5%
• Current rating: minimum 3 A
• Core type: Air core
• Shielding configuration: Unshielded
• Mounting technology: Surface mount
• Self-resonant frequency: 900 MHz
• Operating temperature range: must encompass or exceed -55°C to 125°C

The Würth Elektronik 744918213 meets all substitution criteria. This part maintains identical inductance, tolerance, current rating, core material, and shielding characteristics. Dimensional compatibility is confirmed within acceptable tolerances for the nonstandard package footprint.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 744918213 is the qualified substitute for the obsolete API Delevan 5526-3. Both components share identical electrical specifications across inductance, tolerance, current rating, core material, and shielding. The substitute part offers the following advantages:

The Würth Elektronik part maintains active product status with established supply chain availability. It carries AEC-Q200 automotive qualification and ROHS3 compliance, providing enhanced regulatory alignment for new designs. The specified DC resistance of 20 mOhm maximum offers defined performance characteristics absent from the original part specification.

Operating temperature range for the substitute extends to -40°C minimum, which covers the majority of industrial and commercial applications. Applications requiring the full -55°C lower limit of the original part require explicit thermal validation.

Dimensional compatibility is confirmed with negligible differences in length (0.12mm) and height (0.07mm), ensuring PCB layout compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 744918213 directly replace the API Delevan 5526-3 in existing designs?

A: Yes, for applications operating within -40°C to 125°C. The electrical parameters, inductance value, current rating, and physical dimensions are equivalent. Applications requiring operation below -40°C require thermal performance validation.

Q: What is the significance of the Q factor difference (87 vs. 100)?

A: The higher Q factor of the substitute part indicates lower losses at 50 MHz. This represents improved performance and does not create compatibility issues in substitution scenarios.

Q: Does the specified DC resistance of the substitute part affect circuit performance?

A: The 20 mOhm maximum DCR of the Würth Elektronik part is a defined specification. The original part's unspecified DCR should be evaluated against this value for applications sensitive to resistive losses.

Q: Are there packaging differences between these parts?

A: The API Delevan part uses nonstandard packaging without specified supplier device package designation. The Würth Elektronik part is supplied in Tape & Reel format (supplier device package 5910). Verify reel compatibility with assembly equipment.

Q: What compliance advantages does the substitute offer?

A: The Würth Elektronik 744918213 is ROHS3 compliant and carries AEC-Q200 automotive qualification. The original API Delevan part is RoHS non-compliant. New designs should prioritize the compliant substitute.