4426-7RC Equivalent & Substitute Parts

Part Overview

The 4426-7RC is a 22 nH unshielded wirewound inductor rated for 3 A, 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 is tested at 150 MHz with a self-resonant frequency of 3 GHz.

Substiute Parts

4426-7RC

API Delevan Inc.In Stock: 10734426-7RC Datasheet

Current PartRFQ

AIAC-2712C-22N0J-T

Abracon LLCIn Stock: 994AIAC-2712C-22N0J-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 4426-7RC is based on the following critical parameters:

• Inductance Value: 22 nH with ±5% tolerance
• Current Rating: 3 A minimum
• Core Type: Air core wirewound construction
• Shielding: Unshielded configuration
• Mounting: Surface mount technology
• Frequency Performance: Operation at 150 MHz test frequency

The AIAC-2712C-22N0J-T from Abracon LLC meets all electrical specifications required for direct substitution. Both parts share identical inductance, tolerance, current rating, core material, and shielding characteristics. Mechanical dimensions differ slightly, but both maintain nonstandard package configurations suitable for the same application space.

Parameter Comparison

Engineering Selection Recommendations

The AIAC-2712C-22N0J-T is the qualified substitute for the 4426-7RC based on the following factors:

Electrical Equivalence: Both inductors provide identical 22 nH inductance with ±5% tolerance and 3 A current rating. Q factor performance at 150 MHz is comparable (102 vs. 100), with minimal impact on circuit performance.

Product Status: The 4426-7RC is obsolete, while the AIAC-2712C-22N0J-T is active. This ensures long-term availability and supply chain continuity.

Compliance: The Abracon substitute is ROHS3 compliant, whereas the original part is non-compliant. Selection of the substitute aligns with modern regulatory requirements.

Temperature Range Consideration: The original part operates from -55°C to 125°C, while the substitute operates from -40°C to 125°C. Applications requiring operation below -40°C must retain the original part or identify alternative solutions.

Mechanical Fit: Dimensional differences exist between the two parts. Physical layout verification is required to confirm PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can the AIAC-2712C-22N0J-T directly replace the 4426-7RC in all applications?

A: Electrical substitution is valid for applications operating within -40°C to 125°C. Applications requiring operation below -40°C require the original part or alternative sourcing. PCB layout must accommodate the different physical dimensions.

Q: What is the significance of the Q factor difference (102 vs. 100)?

A: The Q factor difference of 2 points at 150 MHz represents a 1.96% variation. This is within typical circuit tolerance margins and does not constitute a functional limitation for most RF and high-frequency applications.

Q: Why does the self-resonant frequency differ between the two parts?

A: The self-resonant frequency difference (3 GHz vs. 2 GHz) reflects design variations between manufacturers. For applications operating below 2 GHz, both parts are suitable. Applications approaching or exceeding 2 GHz should verify performance with the lower self-resonant frequency of the substitute.

Q: Is the 5 mOhm maximum DC resistance specification critical?

A: The original part does not specify DCR. The substitute's 5 mOhm maximum DCR is a defined parameter. For applications sensitive to resistive losses, this specification should be evaluated against circuit requirements.

Q: What packaging format is used for the AIAC-2712C-22N0J-T?

A: The substitute is supplied in Tape & Reel (TR) format, suitable for automated assembly processes. The original part packaging format is not specified in available documentation.

Q: Are there any compliance advantages to using the substitute?

A: The AIAC-2712C-22N0J-T is ROHS3 compliant, meeting current environmental regulations. The original 4426-7RC is non-compliant. New designs should prioritize the compliant substitute.