0805-82NK Equivalent & Substitute Parts

Part Overview

The 0805-82NK is an 82 nH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 400 mA with a maximum DC resistance of 420mOhm. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part operates across a temperature range of -40°C to 125°C and is mounted as a surface mount device in a nonstandard 0805 package format.

Substiute Parts

0805-82NK

API Delevan Inc.In Stock: 8630805-82NK Datasheet

Current PartRFQ

CW201212-82NG

Bourns Inc.In Stock: 965CW201212-82NG Datasheet

DirectRFQ

CW201212-82NJ

Bourns Inc.In Stock: 6807CW201212-82NJ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0805-82NK are qualified based on the following critical parameters:

• Inductance Value: Must be 82 nH to maintain circuit functionality
• Core Material & Type: Ceramic, unshielded drum core construction
• Current Rating: Must support minimum 400 mA operation
• DC Resistance: Lower or equal DCR values are acceptable for substitution
• Operating Temperature Range: Must cover -40°C to 125°C
• Mounting Type: Surface mount configuration required
• Package Compatibility: 0805 (2012 Metric) standard package format

The substitute parts CW201212-82NG and CW201212-82NJ from Bourns Inc. meet these substitution criteria with improved electrical characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

Both CW201212-82NG and CW201212-82NJ from Bourns Inc. are direct substitutes for the obsolete 0805-82NK. Selection between these two options depends on packaging and tolerance requirements:

CW201212-82NG is suitable for applications requiring standard packaging with ±2% inductance tolerance and improved DC resistance characteristics (320mOhm versus 420mOhm maximum).

CW201212-82NJ is specified for tape and reel packaging with ±5% inductance tolerance, offering higher inventory availability and the same electrical performance as CW201212-82NG.

Both substitute parts provide superior electrical performance with higher current ratings (500 mA versus 400 mA), lower DC resistance, and ROHS3 compliance. The standard 0805 (2012 Metric) package format ensures compatibility with modern PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can CW201212-82NG and CW201212-82NJ be used interchangeably?

A: Yes. Both parts share identical electrical specifications (82 nH inductance, 500 mA current rating, 320mOhm DCR, -40°C to 125°C operating range). The primary difference is packaging: CW201212-82NG is supplied in standard packaging, while CW201212-82NJ is supplied in tape and reel format. Tolerance specifications differ (±2% versus ±5%), which may affect circuit precision requirements.

Q: Are the substitute parts physically compatible with the original 0805-82NK footprint?

A: The substitute parts use the standard 0805 (2012 Metric) package format with dimensions of 0.083" L x 0.059" W (2.10mm x 1.50mm) and height of 0.059" (1.50mm). The original 0805-82NK uses a nonstandard 0805 package with dimensions of 0.090" L x 0.068" W (2.29mm x 1.73mm) and height of 0.060" (1.52mm). Physical verification of PCB footprint compatibility is required before implementation.

Q: What are the compliance advantages of the substitute parts?

A: The CW201212-82NG and CW201212-82NJ are ROHS3 compliant, whereas the original 0805-82NK is RoHS non-compliant. Both substitute parts maintain REACH unaffected status and EAR99 ECCN classification, matching the original part's regulatory profile.

Q: Why do the substitute parts have lower DC resistance?

A: The Bourns CW201212 series inductors feature improved winding design and manufacturing processes that reduce DC resistance from 420mOhm to 320mOhm while maintaining the same 82 nH inductance value. This reduction improves power efficiency and reduces thermal dissipation in the circuit.