4426-3RC Equivalent & Substitute Parts

Part Overview

The 4426-3RC is an 8 nH unshielded wirewound inductor rated for 3 A continuous current, manufactured by API Delevan Inc. This component is designed for surface mount applications requiring low inductance values in RF and high-frequency circuits. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Substiute Parts

4426-3RC

API Delevan Inc.In Stock: 11274426-3RC Datasheet

Current PartRFQ

AL12A08N0GTR

KYOCERA AVXIn Stock: 1334AL12A08N0GTR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 4426-3RC is determined by the following critical parameters:

• Inductance value: 8 nH (exact match required)
• Core material: Air (unshielded wirewound construction)
• Mounting type: Surface Mount
• Physical dimensions: 0.145" L x 0.120" W x 0.125" H maximum
• Shielding configuration: Unshielded

The AL12A08N0GTR from KYOCERA AVX meets these core substitution criteria. Both components share identical inductance specifications, matching physical footprints, and compatible surface mount packaging. The substitute part maintains the same unshielded air-core wirewound construction necessary for RF circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The AL12A08N0GTR is a direct functional substitute for the obsolete 4426-3RC. Both components provide identical inductance values and matching physical dimensions for PCB layout compatibility.

The AL12A08N0GTR offers improved specifications in several areas: tighter inductance tolerance (±2% versus ±5%), higher current rating (4 A versus 3 A), and ROHS3 compliance. The substitute part maintains the same Q factor at 150 MHz and identical moisture sensitivity classification.

The AL12A08N0GTR is classified as Active product status, ensuring continued availability and supply chain stability compared to the obsolete 4426-3RC.

For applications requiring the full -55°C lower temperature limit of the original part, the operating temperature range difference (-40°C minimum for the substitute versus -55°C for the original) must be evaluated against specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can the AL12A08N0GTR replace the 4426-3RC in existing designs?

A: Yes. Both components share identical 8 nH inductance values, matching physical footprints (0.145" L x 0.120" W x 0.125" H), and unshielded air-core wirewound construction. Surface mount placement and PCB layout compatibility are maintained.

Q: What are the key differences between these parts?

A: The AL12A08N0GTR provides tighter inductance tolerance (±2% versus ±5%), higher current rating (4 A versus 3 A), higher self-resonant frequency (5 GHz versus 3 GHz), and ROHS3 compliance. The substitute part has a minimum operating temperature of -40°C compared to -55°C for the original.

Q: Are there packaging differences?

A: Both components use nonstandard surface mount packages with identical physical dimensions. The AL12A08N0GTR is supplied in Tape & Reel packaging, while the 4426-3RC packaging format is not specified.

Q: Does the higher current rating of the substitute affect circuit performance?

A: No. The higher 4 A rating of the AL12A08N0GTR provides additional design margin. For applications operating at or below the original 3 A specification, the substitute performs identically.

Q: What is the impact of the different self-resonant frequencies?

A: The AL12A08N0GTR has a higher self-resonant frequency (5 GHz versus 3 GHz). This extends the usable frequency range and may improve performance in high-frequency RF applications. For circuits operating below 3 GHz, both parts perform equivalently.

Q: Is RoHS compliance a consideration for this substitution?

A: The AL12A08N0GTR is ROHS3 compliant, while the 4426-3RC is RoHS non-compliant. For applications or markets requiring RoHS compliance, the substitute part meets these regulatory requirements.