S0402-27NJ2D Equivalent & Substitute Parts

Part Overview

The S0402-27NJ2D 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 currently in active production status. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

S0402-27NJ2D

API Delevan Inc.In Stock: 808S0402-27NJ2D Datasheet

Current PartRFQ

LRW0402WJ27NGG001T

Johanson Technology Inc.In Stock: 25972LRW0402WJ27NGG001T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the S0402-27NJ2D is determined by the following critical parameters:

• Inductance value of 27 nH with ±5% tolerance
• Current rating of 400 mA minimum
• Surface mount configuration in 0402 (1005 Metric) package
• Unshielded drum core wirewound construction
• DC resistance within acceptable operating limits
• Operating temperature range compatibility

The substitute part LRW0402WJ27NGG001T meets these criteria with equivalent inductance, current rating, package specification, and core type. Variations in DC resistance (298 mOhm vs. 360 mOhm maximum) and core material (ceramic vs. alumina) remain within acceptable substitution parameters for this component category.

Parameter Comparison

Engineering Selection Recommendations

Both components are active production parts with identical inductance specifications and current ratings. The LRW0402WJ27NGG001T offers improved DC resistance performance (298 mOhm vs. 360 mOhm maximum) and ROHS3 compliance status. The S0402-27NJ2D supports an extended lower operating temperature limit of -55°C compared to -40°C for the substitute. Physical dimensions of the LRW0402WJ27NGG001T are slightly smaller with reduced height, which may provide layout advantages in space-constrained applications. Selection between these parts should be based on specific compliance requirements, thermal operating range, and available inventory.

Frequently Asked Questions (FAQ)

Q: Can LRW0402WJ27NGG001T be used as a direct replacement for S0402-27NJ2D?

A: Yes, both parts share identical inductance (27 nH), tolerance (±5%), current rating (400 mA), and 0402 package specification. The substitute has lower DC resistance and improved RoHS compliance. Operating temperature range differs by 15°C at the lower limit.

Q: What is the significance of the DC resistance difference between these parts?

A: The S0402-27NJ2D has a maximum DC resistance of 360 mOhm, while the LRW0402WJ27NGG001T is rated at 298 mOhm maximum. Lower DC resistance reduces power dissipation and heat generation in the inductor during operation. This difference is within acceptable substitution parameters for this component category.

Q: Are there physical compatibility concerns with the smaller dimensions of the LRW0402WJ27NGG001T?

A: Both parts conform to the 0402 (1005 Metric) package standard. The LRW0402WJ27NGG001T has slightly reduced length (1.00mm vs. 1.09mm) and width (0.55mm vs. 0.64mm), with lower seated height (0.60mm vs. 0.76mm). These dimensional variations remain within standard 0402 specifications and should not create compatibility issues in properly designed PCB layouts.

Q: What is the impact of core material differences on performance?

A: The S0402-27NJ2D uses an alumina core, while the LRW0402WJ27NGG001T uses a ceramic core. Both are unshielded drum core wirewound constructions with equivalent inductance and current ratings at the specified test frequency of 250 MHz.

Q: Does RoHS compliance status affect substitution eligibility?

A: RoHS compliance is a regulatory and supply chain consideration. The S0402-27NJ2D is RoHS non-compliant, while the LRW0402WJ27NGG001T is ROHS3 compliant. Selection depends on end-product regulatory requirements and customer specifications.