S0402-22NJ3S Equivalent & Substitute Parts

Part Overview

The S0402-22NJ3S is a 22 nH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 400 mA with a maximum DC resistance of 350 mOhm in 0402 (1005 Metric) surface mount package. This component is active in production and available with 894 pieces in inventory. Equivalent and substitute parts become necessary to ensure design continuity, manage supply chain flexibility, and accommodate specific performance or compliance requirements across different manufacturing environments.

Substiute Parts

S0402-22NJ3S

API Delevan Inc.In Stock: 930S0402-22NJ3S 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

Two substitute parts are identified as compatible with the S0402-22NJ3S based on the following core substitution criteria:

Critical Parameters for Substitution:

• Inductance: 22 nH (exact match)
• Current Rating: 400 mA (exact match)
• Package / Case: 0402 (1005 Metric) (exact match)
• Tolerance: ±5% (exact match)
• Core Type: Drum Core, Wirewound (exact match)
• Shielding: Unshielded (exact match)
• Self Resonant Frequency: 2.8 GHz (exact match)
• Q @ Frequency: 24–25 @ 250 MHz (within acceptable range)

Allowable Parameter Variations:

• DC Resistance (DCR): 300–350 mOhm (lower DCR improves efficiency)
• Operating Temperature Range: May extend or contract within -40°C to -55°C minimum and 125°C maximum
• Core Material: Ceramic or Alumina (both acceptable for unshielded drum core construction)
• Physical Dimensions: Minor variations within 0402 metric envelope
• RoHS / AEC-Q200 Compliance: Additional certifications acceptable

Parameter Comparison

Engineering Selection Recommendations

API Delevan S0402-22NJ3S:

• Select when RoHS non-compliance is acceptable in legacy designs or specific regulatory contexts.
• Direct sourcing with 894 pieces in current inventory.
• Full operating temperature range support (-55°C to 125°C).
• DC resistance at specification limit (350 mOhm Max).

Würth Elektronik 744765122A:

• Preferred for new designs requiring RoHS3 compliance.
• AEC-Q200 qualified for automotive and high-reliability applications.
• Superior DC resistance performance (300 mOhm Max) reduces power dissipation.
• Operating temperature floor limited to -40°C; confirm design requirements if extended cold operation below -40°C is mandatory.
• Largest available inventory (11183 pieces) ensures supply security.

Bourns CW100505-22NJ:

• Suitable for RoHS3 compliant designs without automotive qualification requirements.
• Equivalent DC resistance to Würth part (300 mOhm).
• Full operating temperature range (-55°C to 125°C) matches original component.
• High inventory availability (10214 pieces).

Frequently Asked Questions (FAQ)

Q: Can I directly substitute the S0402-22NJ3S with either the Würth 744765122A or Bourns CW100505-22NJ?

A: Yes. Both parts maintain identical electrical specifications: 22 nH inductance, 400 mA current rating, ±5% tolerance, 0402 package, and 2.8 GHz self-resonant frequency. DC resistance is lower in both substitutes (300 mOhm versus 350 mOhm), which represents improved performance. PCB footprints are equivalent for 0402 metric packages.

Q: What are the differences in DC resistance, and does this matter?

A: The S0402-22NJ3S has a 350 mOhm maximum DC resistance, while both substitute parts specify 300 mOhm maximum. Lower DC resistance reduces resistive losses in signal and power applications. If your design depends on a specific impedance profile, verify that the 50 mOhm reduction is acceptable through circuit simulation or empirical testing.

Q: How does the operating temperature range affect substitution?

A: The Würth 744765122A operates from -40°C to 125°C, whereas the S0402-22NJ3S and Bourns CW100505-22NJ support -55°C to 125°C. If your application requires operation below -40°C, the Würth part is not suitable. The Bourns part is fully interchangeable across the full temperature range.

Q: What is the significance of RoHS and AEC-Q200 compliance?

A: RoHS3 compliance (Würth and Bourns) indicates restriction of hazardous substances compliance required in many markets. AEC-Q200 (Würth only) certifies the component for automotive and mission-critical applications. Select based on regulatory requirements and end-market classification; RoHS non-compliance of the original part may be acceptable in legacy or non-regulated environments.

Q: Are there any mechanical compatibility issues between substitutes?

A: No. All three components use 0402 (1005 Metric) surface mount packages. Physical dimensions vary slightly (API Delevan: 1.09mm × 0.64mm × 0.76mm height; Würth and Bourns: 1.00mm × 0.55mm × 0.60mm height), but these fall within standard 0402 envelope tolerances and do not affect PCB assembly or placement equipment operation.

Q: Which substitute should I select if RoHS compliance is mandatory?

A: Choose either Würth 744765122A or Bourns CW100505-22NJ. Both are ROHS3 compliant. Select Würth if automotive qualification is required; select Bourns if automotive qualification is not mandatory and you require full -55°C to 125°C temperature coverage.

Q: Is there a Q-factor difference between the parts?

A: The S0402-22NJ3S has Q = 24 @ 250 MHz, while both substitutes specify Q = 25 @ 250 MHz. This 1-point difference is negligible in typical RF and analog circuit performance and does not constitute a substitution barrier.

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