S0402-22NJ2C Equivalent & Substitute Parts

Part Overview

The S0402-22NJ2C 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 current with a maximum DC resistance of 350 mOhm and operates across the temperature range of -55°C to 125°C. The part maintains an active product status and is currently in stock with 794 units available. Equivalent and substitute parts are necessary when the original component becomes unavailable, when alternative compliance certifications are required, or when optimized performance characteristics within the allowed parameter envelope are preferred.

Substiute Parts

S0402-22NJ2C

API Delevan Inc.In Stock: 842S0402-22NJ2C Datasheet

Current PartRFQ

744765122A

Würth ElektronikIn Stock: 11214744765122A Datasheet

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CW100505-22NJ

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

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the S0402-22NJ2C is valid for parts meeting the following critical parameters:

Mandatory Matching Parameters:

• Inductance: 22 nH
• Inductance Tolerance: ±5%
• Current Rating: 400 mA
• Package / Case: 0402 (1005 Metric)
• Mounting Type: Surface Mount
• Core Type: Drum Core, Wirewound
• Shielding: Unshielded
• Frequency - Self Resonant: 2.8 GHz
• Inductance Frequency - Test: 250 MHz

Allowable Variation Parameters:

• DC Resistance (Maximum): Up to 350 mOhm (substitutes with lower values are acceptable)
• Operating Temperature Range: Minimum -40°C (substitutes with wider ranges are acceptable)
• Q @ Frequency: 24 or higher @ 250 MHz
• Core Material: Alumina or Ceramic

The two identified substitutes comply with all mandatory parameters. Both maintain the 22 nH inductance with ±5% tolerance, 400 mA current rating, and 0402 package specification. DC resistance values in both substitutes are reduced to 300 mOhm, providing improved performance within acceptable limits. Self-resonant frequency and Q-factor specifications are maintained or exceeded.

Parameter Comparison

Engineering Selection Recommendations

Both the 744765122A (Würth Elektronik) and CW100505-22NJ (Bourns) are valid substitutes for the S0402-22NJ2C based on electrical and mechanical parameter compatibility.

The 744765122A carries AEC-Q200 certification and ROHS3 compliance, making it suitable for automotive applications and environments with stringent regulatory requirements. The CW100505-22NJ maintains RoHS compliance and supports the full operating temperature range of -55°C to 125°C, matching the original part specification.

Both substitutes feature reduced DC resistance (300 mOhm versus 350 mOhm maximum), improved Q-factor (25 versus 24 @ 250 MHz), and slightly smaller physical dimensions. These characteristics represent performance improvements within the allowable parameter envelope. The Würth Elektronik and Bourns parts feature identical sizing at 1.00mm length and 0.55mm width with a 0.60mm maximum seated height, approximately 8% reduction in length and 14% reduction in width compared to the original API Delevan part.

Frequently Asked Questions (FAQ)

Q: What are the critical parameters that must match when substituting the S0402-22NJ2C?

A: The inductance value (22 nH ±5%), current rating (400 mA), package type (0402/1005 Metric), mounting configuration (surface mount), core construction (drum core wirewound, unshielded), and self-resonant frequency (2.8 GHz) must all match exactly. Inductance tolerance, Q-factor, and temperature operating range must meet or exceed the original specification.

Q: Can the DC resistance be lower in a substitute part?

A: Yes. Lower DC resistance values improve circuit performance by reducing losses. The original part specifies a maximum of 350 mOhm; both substitutes meet this requirement with 300 mOhm maximum values.

Q: Are the physical dimension differences significant?

A: The substitute parts (744765122A and CW100505-22NJ) are approximately 8% smaller in length and 14% smaller in width while maintaining the 0402 package classification. Both maintain the same footprint for PCB trace routing and remain compatible with 0402 package assembly equipment. Height is reduced by 0.16 mm (21% reduction), which provides additional clearance benefits in space-constrained designs.

Q: What is the significance of RoHS compliance differences?

A: The original S0402-22NJ2C is RoHS non-compliant. The Würth Elektronik 744765122A and Bourns CW100505-22NJ are both ROHS3 compliant. For new designs or applications where environmental regulations mandate compliance, the substitute parts satisfy these requirements while maintaining identical electrical performance.

Q: Does the operating temperature range affect substitution suitability?

A: The Würth Elektronik 744765122A operates from -40°C to 125°C, which is narrower than the S0402-22NJ2C and CW100505-22NJ (-55°C to 125°C). The 744765122A is suitable for applications operating within the -40°C to 125°C envelope. The Bourns CW100505-22NJ maintains full compatibility with the original -55°C to 125°C temperature specification.

Q: Is AEC-Q200 certification required for my application?

A: AEC-Q200 certification is relevant for automotive and mission-critical applications requiring automotive-grade component qualification. The Würth Elektronik 744765122A carries this certification; the Bourns CW100505-22NJ does not list this rating. Selection should be based on application requirements.