Equivalent & Substitute Parts for API Delevan 4426-7

Part Overview

The API Delevan 4426-7 is a 22 nH unshielded wirewound inductor rated for 3 A maximum current, designed for surface mount applications in high-frequency circuits. This part is Active status and widely used in RF and microwave applications where low inductance values and high current handling are required. Alternative models become necessary when RoHS compliance is mandated, when specific DC resistance specifications are critical, or when inventory constraints require qualified substitutes with identical electrical performance within defined tolerance ranges.

Substiute Parts

4426-7

API Delevan Inc.In Stock: 11854426-7 Datasheet

Current PartRFQ

4426R-7

API Delevan Inc.In Stock: 19454426R-7 Datasheet

DirectRFQ

AIAC-2712C-22N0J-T

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Qualified substitute parts for the 4426-7 inductor are determined by strict compliance with the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value of 22 nH with ±5% tolerance
• 3 A current rating capability
• Unshielded wirewound construction with air core
• Surface mount package configuration
• Operating temperature range meeting or exceeding -55°C ~ 125°C
• Moisture sensitivity level of 1
• REACH unaffected status

Secondary Compatibility Parameters:

• Q factor at 150 MHz (minimum 100)
• Self-resonant frequency minimum 2 GHz
• Package dimensions compatible with 0.270" × 0.120" (6.86mm × 3.05mm) footprint or smaller equivalent

The 4426-7 has two qualified substitutes: the 4426R-7 from the same manufacturer (direct upgrade with RoHS3 compliance) and the AIAC-2712C-22N0J-T from Abracon LLC (cross-manufacturer equivalent with defined DC resistance specification).

Parameter Comparison

Engineering Selection Recommendations

4426R-7 (Recommended Primary Substitute): The 4426R-7 is the preferred direct substitute for the 4426-7. This part maintains identical electrical specifications (22 nH inductance, 3 A current rating, 102 Q @ 150MHz, 3 GHz self-resonant frequency) and mechanical footprint. The primary advantage is ROHS3 compliance, making it suitable for applications with RoHS requirements while the 4426-7 is RoHS non-compliant. Both parts share the same operating temperature range and moisture sensitivity level. This substitution requires no design modifications and offers drop-in compatibility.

AIAC-2712C-22N0J-T (Alternative Substitute for Specific Requirements): The AIAC-2712C-22N0J-T from Abracon LLC meets all core electrical substitution criteria with identical inductance (22 nH), tolerance (±5%), and current rating (3 A). This part offers ROHS3 compliance and includes a specified DC resistance maximum of 5 mOhm. The AIAC-2712C has a smaller physical footprint (6.00mm × 2.50mm vs. 6.86mm × 3.05mm) and lower height (2.80mm vs. 3.18mm), making it suitable for space-constrained designs. The self-resonant frequency is 2 GHz (compared to 3 GHz for API Delevan parts) and the operating temperature minimum is -40°C (compared to -55°C for the main part). Selection of this part is determined by available board space and DC resistance criticality; the -40°C lower temperature limit eliminates this part for designs requiring operation below -40°C.

Frequently Asked Questions (FAQ)

Q: What makes the 4426R-7 a direct substitute for the 4426-7? A: Both parts are manufactured by API Delevan Inc., share identical inductance (22 nH), tolerance (±5%), current rating (3 A), core material (air), shielding (unshielded), and physical footprint (6.86mm × 3.05mm). The 4426R-7 is the RoHS3-compliant evolution of the 4426-7 within the same product series. Electrical performance (Q factor of 102 @ 150MHz, 3 GHz self-resonant frequency, -55°C ~ 125°C operating range) is identical, enabling pin-for-pin substitution without circuit modifications.

Q: Can the AIAC-2712C-22N0J-T be used as a drop-in replacement in all applications? A: The AIAC-2712C-22N0J-T meets all primary electrical substitution criteria (22 nH, ±5% tolerance, 3 A rating, air core, unshielded wirewound construction). Physical dimensions are smaller (6.00mm × 2.50mm vs. 6.86mm × 3.05mm), which benefits space-constrained PCB layouts. The operating temperature minimum is -40°C instead of -55°C, restricting use in applications requiring below -40°C operation. The self-resonant frequency is 2 GHz versus 3 GHz for API Delevan parts, which may affect high-frequency performance near resonance. This substitute is electrically and mechanically compatible for applications within its temperature range and frequency envelope.

Q: How does DC resistance specification affect inductor selection? A: The AIAC-2712C-22N0J-T specifies a maximum DC resistance of 5 mOhm, while the 4426-7 and 4426R-7 do not specify DCR. When DC resistance is critical to circuit performance (power loss calculations, thermal management, or filter response), the AIAC-2712C-22N0J-T provides a defined maximum value. The 4426-7 and 4426R-7 remain suitable for applications where DCR specification is not provided or where unspecified DCR within typical tolerances is acceptable.

Q: Are all three parts RoHS compliant? A: No. The 4426-7 is RoHS non-compliant. Both the 4426R-7 and AIAC-2712C-22N0J-T are ROHS3 compliant. For designs subject to RoHS requirements, use either the 4426R-7 (same manufacturer) or the AIAC-2712C-22N0J-T (Abracon alternative).

Q: What are the moisture sensitivity implications for these inductors? A: All three parts have Moisture Sensitivity Level 1 (MSL 1 - Unlimited), indicating no moisture-related constraints during storage, handling, or reflow soldering. Standard PCB assembly processes apply without special moisture control measures.

Q: How do I determine which substitute is appropriate for my design? A: Select based on these criteria: (1) If RoHS compliance is required and you prefer to remain with API Delevan, use the 4426R-7. (2) If your design has space constraints, use the AIAC-2712C-22N0J-T (smaller footprint). (3) If operation below -40°C is required, use either the 4426-7 or 4426R-7. (4) If DC resistance specification is required, use the AIAC-2712C-22N0J-T (5 mOhm maximum). (5) For designs without specific RoHS, temperature, or resistance requirements, the 4426R-7 is the recommended primary substitute due to identical footprint and temperature range.