API Delevan 4426-2 Equivalent & Substitute Parts

Part Overview

The API Delevan 4426-2 is a 5 nH unshielded wirewound inductor rated for 3 A continuous current, designed for surface mount applications in high-frequency circuits. This component is classified as Active product status with unlimited moisture sensitivity level (MSL 1). The part operates across a temperature range of -55°C to 125°C and demonstrates a Q factor of 140 at 150 MHz with a self-resonant frequency of 3 GHz. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances.

Key Parameters

Parameter	Value	Unit
Inductance	5	nH
Inductance Tolerance	±10%	—
Current Rating	3	A
Q Factor @ 150 MHz	140	—
Self-Resonant Frequency	3	GHz
Operating Temperature Range	-55 to 125	°C
Mounting Type	Surface Mount	—
Shielding	Unshielded	—
Core Material	Air	—
Package Type	Nonstandard	—

Substitute Part Grouping Explanation

Substitution eligibility for the API Delevan 4426-2 is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

Inductance value: 5 nH (within ±10% tolerance band)
Inductance tolerance: ±10%
Core material: Air (unshielded wirewound construction)
Q factor @ 150 MHz: 140
Self-resonant frequency: 3 GHz
Mounting type: Surface Mount
Package classification: Nonstandard

Secondary Compatibility Parameters:

Current rating: Equal to or greater than 3 A
Operating temperature range: Must encompass or exceed -55°C to 125°C
Moisture sensitivity level: MSL 1 (Unlimited)

The Abracon LLC AIAC-1512C-5N0K-T meets all primary substitution criteria and exceeds the current rating specification, making it a direct electrical equivalent. Mechanical dimensions differ slightly, requiring verification of PCB layout compatibility.

Parameter Comparison

Parameter	API Delevan 4426-2	Abracon AIAC-1512C-5N0K-T	Match Status
Inductance	5 nH	5 nH	Equivalent
Inductance Tolerance	±10%	±10%	Equivalent
Current Rating (Amps)	3	4.6	Substitute Exceeds
Q @ 150 MHz	140	140	Equivalent
Self-Resonant Frequency	3 GHz	3 GHz	Equivalent
Operating Temperature Range	-55 to 125°C	-40 to 125°C	Substitute Limited
Mounting Type	Surface Mount	Surface Mount	Equivalent
Shielding	Unshielded	Unshielded	Equivalent
Core Material	Air	Air	Equivalent
Package Type	Nonstandard	Nonstandard	Equivalent
Moisture Sensitivity Level	MSL 1 (Unlimited)	MSL 1 (Unlimited)	Equivalent
DC Resistance (DCR)	Not specified	1.5 mOhm Max	Substitute Specified
Size / Dimension (L x W)	0.145" x 0.120" (3.68mm x 3.05mm)	0.130" x 0.098" (3.30mm x 2.50mm)	Substitute Smaller
Height - Seated (Max)	0.125" (3.18mm)	0.110" (2.80mm)	Substitute Smaller

Engineering Selection Recommendations

The Abracon LLC AIAC-1512C-5N0K-T is electrically equivalent to the API Delevan 4426-2 across all critical RF and inductance parameters. The substitute part provides superior current handling capacity (4.6 A versus 3 A) and includes specified DC resistance (1.5 mOhm maximum), offering improved performance margin in power delivery applications.

Compliance Status Comparison:

API Delevan 4426-2: RoHS non-compliant
Abracon AIAC-1512C-5N0K-T: ROHS3 Compliant

Both parts maintain REACH Unaffected status and EAR99 export classification.

Temperature Range Consideration: The substitute part operates from -40°C to 125°C, which does not extend to the -55°C lower limit of the original part. Applications requiring operation below -40°C must retain the API Delevan 4426-2.

Physical Dimensions: The Abracon substitute is physically smaller in all dimensions (length, width, and height). PCB layout verification is required to confirm mechanical fit within existing footprints.

Frequently Asked Questions (FAQ)

Q: Can the Abracon AIAC-1512C-5N0K-T replace the API Delevan 4426-2 in all applications?

A: Electrical substitution is valid for inductance, Q factor, and self-resonant frequency. However, the lower operating temperature limit (-40°C versus -55°C) restricts use in applications requiring sub-40°C operation. Physical dimensions are smaller, requiring PCB layout confirmation.

Q: What is the significance of the current rating difference (3 A versus 4.6 A)?

A: The substitute part exceeds the original current specification, providing additional thermal and electrical margin. This is advantageous for applications approaching the 3 A limit of the original part.

Q: Does the specified DC resistance of the Abracon part affect substitution?

A: The original part does not specify DC resistance. The Abracon specification of 1.5 mOhm maximum represents additional performance data. For circuits sensitive to inductor resistance, this specification should be evaluated against design requirements.

Q: Are there packaging or supply chain implications?

A: Both parts use Tape & Reel (TR) packaging and maintain MSL 1 (Unlimited) moisture sensitivity. The Abracon part is ROHS3 compliant, while the API Delevan part is RoHS non-compliant. Regulatory requirements may influence component selection.

Q: What physical verification is required before substitution?

A: Confirm that the smaller footprint (3.30mm x 2.50mm versus 3.68mm x 3.05mm) and reduced height (2.80mm versus 3.18mm) are compatible with existing PCB layout and component placement constraints.

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