S0402-27NJ1D Equivalent & Substitute Parts

Part Overview

The S0402-27NJ1D is a 27 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 360 mOhm and is rated for operating temperatures from -55°C to 125°C. The part is currently active in production with 940 pieces available in stock. Equivalent substitute parts are identified based on matching electrical specifications, mechanical compatibility, and package standardization to support procurement flexibility and supply chain continuity.

Substiute Parts

S0402-27NJ1D

API Delevan Inc.In Stock: 988S0402-27NJ1D Datasheet

Current PartRFQ

LRW0402WJ27NGG001T

Johanson Technology Inc.In Stock: 25972LRW0402WJ27NGG001T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S0402-27NJ1D are qualified based on the following critical parameters:

• Inductance Value: 27 nH with ±5% tolerance
• Current Rating: 400 mA minimum
• Package / Case: 0402 (1005 Metric) surface mount
• Shielding Configuration: Unshielded
• Core Type: Drum core wirewound construction
• DC Resistance: Maximum allowable DCR that maintains circuit performance
• Operating Temperature Range: Minimum -40°C to 125°C (subset of main part range acceptable)
• Mounting Type: Surface mount compatibility

The LRW0402WJ27NGG001T from Johanson Technology Inc. meets all primary electrical and mechanical substitution criteria, with equivalent inductance, current rating, and package specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the S0402-27NJ1D and LRW0402WJ27NGG001T are active production components with identical inductance values, current ratings, and package specifications. The LRW0402WJ27NGG001T offers improved DC resistance performance (298 mOhm vs. 360 mOhm maximum) and ROHS3 compliance, making it suitable for applications requiring regulatory compliance. The S0402-27NJ1D supports the extended lower operating temperature limit of -55°C, which may be required for specific military or aerospace applications. Both components are MSL 1 rated and suitable for unlimited moisture exposure conditions. Selection between these parts should be based on regulatory requirements, thermal performance needs, and supply availability.

Frequently Asked Questions (FAQ)

Q: Can the LRW0402WJ27NGG001T replace the S0402-27NJ1D in all applications?

A: The LRW0402WJ27NGG001T is electrically and mechanically compatible for applications operating within the -40°C to 125°C temperature range. Applications requiring operation below -40°C must use the S0402-27NJ1D.

Q: What is the significance of the different core materials (Alumina vs. Ceramic)?

A: Both alumina and ceramic core materials are used in drum core wirewound inductors. The material difference does not affect the specified electrical parameters (inductance, current rating, DCR) provided in this reference.

Q: Are there dimensional compatibility concerns when substituting these parts?

A: Both parts use the 0402 (1005 Metric) package standard. The LRW0402WJ27NGG001T has slightly smaller physical dimensions and lower seated height, which are compatible with standard 0402 PCB footprints.

Q: What is the impact of the DCR difference between these parts?

A: The LRW0402WJ27NGG001T has lower maximum DC resistance (298 mOhm vs. 360 mOhm). Lower DCR reduces resistive losses and heat generation in the inductor, which may improve circuit efficiency.

Q: Does RoHS compliance affect substitution eligibility?

A: RoHS compliance is a regulatory and procurement consideration. The LRW0402WJ27NGG001T is ROHS3 compliant, while the S0402-27NJ1D is non-compliant. Selection depends on end-product regulatory requirements.

Q: Are both parts suitable for high-frequency applications?

A: Both parts are specified for 250 MHz inductance testing. The LRW0402WJ27NGG001T has a higher Q factor at 900 MHz (55 vs. 23 @ 250 MHz for the main part), indicating potentially better high-frequency performance characteristics.