S0402-22NJ1B

Part Overview

The S0402-22NJ1B 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 is rated for 400 mA continuous current with a maximum DC resistance of 350 mOhm, operating across the temperature range of -55°C to 125°C. The part is currently in active production status. Equivalent and substitute parts are necessary when the primary component becomes unavailable, when supply chain optimization is required, or when design flexibility across multiple manufacturers is needed while maintaining functional performance.

Substiute Parts

S0402-22NJ1B

API Delevan Inc.In Stock: 885S0402-22NJ1B 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 S0402-22NJ1B are qualified based on strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

• Inductance value: 22 nH
• Inductance tolerance: ±5%
• Current rating: 400 mA minimum
• Package classification: 0402 (1005 Metric)
• Mounting type: Surface Mount
• Shielding characteristic: Unshielded

Allowable Variation Parameters:

• DC Resistance (DCR): Parts with 300 mOhm max DCR are acceptable (lower resistance represents improved performance)
• Core material: Ceramic substitutes for Alumina where inductance and frequency characteristics are maintained
• Operating temperature range: Extensions of the minimum temperature (-40°C vs -55°C) do not disqualify parts for many applications
• RoHS compliance: Non-compliance does not affect electrical substitution but may affect procurement constraints

The two identified substitute parts meet these criteria with equivalent electrical performance and physical compatibility.

Parameter Comparison

Engineering Selection Recommendations

API Delevan S0402-22NJ1B (Primary Part): This component maintains active product status and offers extended lower operating temperature capability (-55°C). However, it carries RoHS non-compliance status, which may introduce procurement restrictions in regulated or environmentally-conscious applications.

Würth Elektronik 744765122A: This substitute provides improved DC resistance performance (300 mOhm max versus 350 mOhm max), reducing power dissipation in high-current RF applications. It holds AEC-Q200 automotive qualification and ROHS3 compliance, making it suitable for automotive and regulated environments. The reduced physical dimensions and lower seated height provide potential PCB layout advantages. Operating temperature range begins at -40°C, which covers most industrial applications.

Bourns Inc. CW100505-22NJ: This substitute also provides improved DC resistance specification (300 mOhm) and ROHS3 compliance. It maintains the full operating temperature range of -55°C to 125°C, matching the primary part specification. Higher Q factor (25 @ 250 MHz) provides superior RF performance characteristics. This part is offered in Tape & Reel packaging, optimizing high-volume manufacturing operations.

Selection between substitute parts depends on specific application requirements: automotive qualification preference, environmental compliance mandates, temperature range necessity, and volume packaging format.

Frequently Asked Questions (FAQ)

Q: Can 744765122A be used as a direct replacement for S0402-22NJ1B?

A: Electrical substitution is valid. The 744765122A maintains the critical parameters: 22 nH inductance at ±5% tolerance, 400 mA current rating, 0402 package, and unshielded configuration. Physical dimensions differ slightly (smaller footprint), and the lower operating temperature minimum (-40°C vs -55°C) may affect applications requiring extended low-temperature operation. RoHS3 compliance represents an advantage for regulated environments.

Q: What is the significance of the DCR difference between parts?

A: The DC resistance difference (350 mOhm max versus 300 mOhm) affects power dissipation and impedance characteristics in RF circuits. Lower DCR in the substitute parts (744765122A and CW100505-22NJ) results in reduced resistive losses, improved circuit efficiency, and better high-frequency performance. This represents a functional improvement over the primary part.

Q: Are these parts suitable for automotive applications?

A: The Würth Elektronik 744765122A carries AEC-Q200 certification, making it explicitly suitable for automotive applications. The primary API Delevan S0402-22NJ1B and Bourns CW100505-22NJ lack stated automotive certifications. Selection should be based on specific automotive qualification requirements of the design.

Q: Does the core material difference affect substitution?

A: Both substitute parts utilize ceramic core material versus the alumina core of the primary part. The inductance value, tolerance, frequency characteristics, and current rating remain equivalent across materials. Substitution is electrically valid when these primary specifications match. Material composition does not restrict substitution in standard RF applications.

Q: What packaging formats are available for production?

A: The primary S0402-22NJ1B is available in Bulk packaging. Both substitute parts (744765122A and CW100505-22NJ) are supplied in Tape & Reel format, optimizing automated assembly processes for high-volume production. Selection between packaging formats depends on manufacturing process requirements and inventory management strategy.

Q: Can these parts be interchanged on existing PCBs without redesign?

A: Electrical interchange is valid. Physical dimension differences require verification: the primary part measures 0.043" L x 0.025" W with 0.030" seated height, while substitutes measure 0.039" L x 0.022" W with 0.024" seated height. Smaller substitute dimensions typically present no compatibility issues in standard PCB layouts. PCB clearance validation remains prudent for designs with tight component spacing.