S0402-22NJ2D Equivalent & Substitute Parts Reference

Part Overview

The S0402-22NJ2D is a 22 nH unshielded drum core wirewound inductor manufactured by API Delevan Inc., designed for surface mount applications in the 0402 (1005 Metric) package. This component operates at 400 mA current rating with a maximum DC resistance of 350 mOhm and is specified for use across the -55°C to 125°C temperature range. The part is currently active in production with 687 pieces available in inventory.

Equivalent and substitute parts are identified based on matching electrical specifications (inductance value, current rating, tolerance, and frequency characteristics) and mechanical compatibility (package size, mounting type, and form factor). Substitute components must maintain functional equivalence within the defined parameter tolerances to ensure direct replacement capability in circuit applications.

Substiute Parts

S0402-22NJ2D

API Delevan Inc.In Stock: 755S0402-22NJ2D Datasheet

Current PartRFQ

744765122A

Würth ElektronikIn Stock: 11214744765122A Datasheet

SimilarRFQ

CW100505-22NJ

Bourns Inc.In Stock: 10280CW100505-22NJ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S0402-22NJ2D are qualified based on the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Inductance value: 22 nH (±5% tolerance maintained)
• Current rating: 400 mA minimum
• DC resistance: Must not exceed 350 mOhm maximum
• Self resonant frequency: 2.8 GHz
• Q factor @ 250 MHz: 24 or higher
• Frequency test point: 250 MHz

Mechanical Compatibility Criteria:

• Package / Case: 0402 (1005 Metric)
• Mounting type: Surface Mount
• Core type: Drum Core, Wirewound
• Shielding: Unshielded

Environmental & Compliance Criteria:

• Operating temperature range: Must support -55°C to 125°C or equivalent
• Moisture sensitivity level: 1 (Unlimited)
• RoHS and REACH compliance status

Two substitute parts meet these criteria: the Würth Elektronik 744765122A and the Bourns Inc. CW100505-22NJ. Both components maintain the specified inductance, current rating, package dimensions, and frequency characteristics required for direct substitution in the S0402-22NJ2D application.

Parameter Comparison

Engineering Selection Recommendations

S0402-22NJ2D (API Delevan Inc.): This is the primary reference component with active product status. It provides the baseline specification for 22 nH inductance at 400 mA. The component is RoHS non-compliant and carries an alumina core material. Current inventory is 687 pieces.

744765122A (Würth Elektronik): This substitute part meets all electrical specifications with equivalent inductance, current rating, and frequency characteristics. The DC resistance is improved at 300 mOhm maximum (compared to 350 mOhm). The component is ROHS3 compliant and features a ceramic core. Physical dimensions are slightly smaller (1.00mm x 0.55mm vs. 1.09mm x 0.64mm) with reduced seated height (0.60mm vs. 0.76mm). Operating temperature range is -40°C to 125°C. Inventory availability is 11,183 pieces. This part is rated to AEC-Q200 automotive qualification standard.

CW100505-22NJ (Bourns Inc.): This substitute part also meets all electrical specifications with matching inductance, current rating, and frequency characteristics. DC resistance is 300 mOhm maximum. The component is ROHS3 compliant with a ceramic core. Physical dimensions match the Würth part (1.00mm x 0.55mm) with 0.60mm seated height. Operating temperature range is -55°C to 125°C, matching the primary part. Inventory availability is 10,214 pieces.

Selection between substitute parts depends on specific application requirements: the Würth part offers automotive-grade qualification (AEC-Q200) with slightly restricted lower temperature limit (-40°C), while the Bourns part maintains the full -55°C to 125°C temperature range of the original component.

Frequently Asked Questions (FAQ)

Q: Can the 744765122A directly replace the S0402-22NJ2D in all applications?

A: The 744765122A meets all electrical specifications for inductance, current rating, and frequency response. However, the operating temperature range is -40°C to 125°C, which does not extend to -55°C. Direct replacement is suitable only for applications where the minimum operating temperature does not fall below -40°C. Physical dimensions are also slightly smaller, which may affect PCB layout in space-constrained designs.

Q: What is the difference between the two substitute parts?

A: Both the 744765122A and CW100505-22NJ provide identical electrical performance (22 nH, 400 mA, 300 mOhm DCR, 2.8 GHz SRF). The primary difference is the operating temperature range: the Würth part operates from -40°C to 125°C with AEC-Q200 automotive qualification, while the Bourns part operates from -55°C to 125°C without automotive rating. Physical dimensions are identical between the two substitutes.

Q: Are the substitute parts physically compatible with the original PCB layout?

A: The substitute parts use the same 0402 (1005 Metric) package and surface mount configuration. However, the physical dimensions differ slightly: the original S0402-22NJ2D measures 1.09mm x 0.64mm with 0.76mm seated height, while both substitutes measure 1.00mm x 0.55mm with 0.60mm seated height. These dimensional differences are within typical PCB design tolerances for 0402 components, but layout verification is necessary for applications with tight spatial constraints.

Q: What is the significance of the core material difference (Alumina vs. Ceramic)?

A: The original part uses an alumina core, while both substitutes use ceramic cores. Both materials are standard for drum core wirewound inductors in this inductance range. The electrical performance (inductance, Q factor, self-resonant frequency) is equivalent across all three parts, indicating that the core material difference does not affect functional substitution.

Q: Why do the substitute parts have lower DC resistance (300 mOhm vs. 350 mOhm)?

A: Lower DC resistance in the substitute parts represents an improvement in component performance. This reduction in resistive losses results in higher Q factors (25 vs. 24 @ 250 MHz) and better overall efficiency. Applications sensitive to resistive losses will benefit from this specification improvement.

Q: Are there compliance or certification differences between the parts?

A: The original S0402-22NJ2D is RoHS non-compliant. Both substitute parts are ROHS3 compliant. The Würth 744765122A carries AEC-Q200 automotive qualification; the Bourns CW100505-22NJ does not list automotive qualification. Selection should account for regulatory and industry certification requirements of the end application.

Q: Can these parts be used interchangeably in high-frequency RF applications?

A: All three parts share identical self-resonant frequency (2.8 GHz) and equivalent Q factors at 250 MHz, indicating equivalent high-frequency performance. Substitution is electrically valid for RF applications operating within the specified frequency range. Physical layout considerations remain important due to dimensional differences.