S0402-4N7J2S Equivalent & Substitute Parts

Part Overview

The S0402-4N7J2S is a 4.7 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 600 mA continuous current with a maximum DC resistance of 150mOhm and operates across the temperature range of -55°C to 125°C. The part is currently active in production with 650 pieces available in stock.

Substitute components become necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit relaxed electrical specifications. The substitute parts listed maintain the core electrical characteristics—4.7 nH inductance at ±5% tolerance and 0402 package form factor—while offering improved current ratings and reduced DC resistance in certain cases.

Substiute Parts

S0402-4N7J2S

API Delevan Inc.In Stock: 664S0402-4N7J2S Datasheet

Current PartRFQ

36501E4N7JTDG

TE Connectivity Passive ProductIn Stock: 138236501E4N7JTDG Datasheet

SimilarRFQ

744765047A

Würth ElektronikIn Stock: 10397744765047A Datasheet

SimilarRFQ

CW100505-4N7J

Bourns Inc.In Stock: 282676CW100505-4N7J Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the S0402-4N7J2S is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 4.7 nH ±5%
• Package / Case: 0402 (1005 Metric)
• Mounting Type: Surface Mount
• Shielding: Unshielded
• Inductance Frequency Test: 250 MHz

Secondary Compatibility Parameters:

• Current Rating: Equal to or greater than 600 mA
• DC Resistance: Equal to or less than 150mOhm
• Operating Temperature Range: Must encompass or exceed -55°C ~ 125°C
• Self Resonant Frequency: Minimum 4.7GHz

All three substitute parts meet the primary substitution criteria. Variations in current rating, DC resistance, and core material (ceramic vs. alumina) are within acceptable substitution parameters when the primary part is unavailable.

Parameter Comparison

Engineering Selection Recommendations

36501E4N7JTDG (TE Connectivity Passive Product): This substitute offers improved electrical performance with 640 mA current rating and 130mOhm maximum DC resistance, representing a 6.7% increase in current capacity and 13.3% reduction in resistance compared to the primary part. The component carries AEC-Q200 automotive qualification and ROHS3 compliance. The operating temperature range is limited to -40°C ~ 125°C, which excludes the lower temperature extreme of the primary specification. This part is suitable for applications where the extended low-temperature range is not required and automotive-grade reliability is beneficial.

744765047A (Würth Elektronik): This substitute maintains the same electrical specifications as the TE Connectivity part with 640 mA current rating and 130mOhm maximum DC resistance. It carries AEC-Q200 qualification and ROHS3 compliance. The self-resonant frequency is marginally higher at 4.775GHz. Physical dimensions are slightly smaller (1.00mm x 0.55mm vs. 1.09mm x 0.64mm for the primary part), and the seated height is reduced to 0.60mm. The operating temperature range is -40°C ~ 125°C. This part is suitable for space-constrained applications where the reduced footprint provides design advantage.

CW100505-4N7J (Bourns Inc.): This substitute provides the same electrical performance as the other two alternatives with 640 mA current rating and 130mOhm DC resistance. It maintains the full operating temperature range of -55°C ~ 125°C, matching the primary part specification. ROHS3 compliance is confirmed. With 282,624 pieces in stock, this part offers the highest inventory availability. Physical dimensions are identical to the Würth Elektronik part (1.00mm x 0.55mm). This part is the most direct substitute when full temperature range compatibility and maximum stock availability are required.

Frequently Asked Questions (FAQ)

Q: Can these substitute parts be used interchangeably with the S0402-4N7J2S?

A: Yes, all three substitute parts maintain the core electrical specifications of 4.7 nH inductance at ±5% tolerance and the 0402 (1005 Metric) surface mount package. However, design requirements must accommodate the specific operating temperature range and compliance certifications of each substitute. The CW100505-4N7J maintains the full -55°C ~ 125°C temperature range of the primary part, while the TE Connectivity and Würth Elektronik parts are limited to -40°C ~ 125°C.

Q: What are the key differences in electrical performance between the primary part and substitutes?

A: The substitute parts offer improved current ratings (640 mA vs. 600 mA) and reduced DC resistance (130mOhm vs. 150mOhm). The quality factor (Q) at 250MHz is marginally higher in the substitutes (15 vs. 14). These improvements represent enhanced electrical efficiency and thermal performance without compromising the core inductance specification.

Q: Are there compliance or certification differences I should consider?

A: The primary part (S0402-4N7J2S) is RoHS non-compliant. All three substitute parts are ROHS3 compliant. The TE Connectivity (36501E4N7JTDG) and Würth Elektronik (744765047A) parts carry AEC-Q200 automotive qualification, which the primary part and Bourns part do not specify. If automotive-grade reliability is required, the TE Connectivity or Würth Elektronik parts are appropriate selections.

Q: Do the physical dimensions differ significantly?

A: The primary part measures 1.09mm x 0.64mm with a seated height of 0.76mm. The TE Connectivity part is slightly larger at 1.27mm x 0.76mm with a seated height of 0.61mm. The Würth Elektronik and Bourns parts are smaller at 1.00mm x 0.55mm with a seated height of 0.60mm. For space-constrained PCB layouts, the Würth Elektronik or Bourns parts provide a more compact footprint.

Q: Which substitute should I select for maximum inventory availability?

A: The CW100505-4N7J from Bourns offers the highest stock level with 282,624 pieces available, compared to 1,316 pieces for the TE Connectivity part and 10,300 pieces for the Würth Elektronik part. The primary part has 650 pieces in stock.

Q: What is the significance of the core material difference (alumina vs. ceramic)?

A: The primary part uses an alumina core, while all substitute parts use ceramic cores. Both materials are suitable for unshielded wirewound inductors in this inductance range. The ceramic core substitutes provide the specified electrical performance without requiring material-specific design considerations.