0603-82NK

Part Overview

The API Delevan Inc. 0603-82NK is an 82 nH unshielded drum core, wirewound inductor rated for 400 mA with a maximum DC resistance of 540 mOhm. This component is classified as obsolete, necessitating the identification of active substitute parts for ongoing production and procurement requirements.

Substiute Parts

0603-82NK

API Delevan Inc.In Stock: 9640603-82NK Datasheet

Current PartRFQ

CW160808-82NJ

Bourns Inc.In Stock: 1124CW160808-82NJ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The identification of suitable substitute parts for the 0603-82NK is based strictly on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Inductance value: 82 nH
• Current rating: 400 mA minimum
• DC resistance: 540 mOhm maximum
• Shielding type: Unshielded
• Operating temperature range: -40°C to 125°C minimum
• Mounting type: Surface Mount
• Core type: Drum core, wirewound construction

The Bourns Inc. CW160808-82NJ meets these electrical requirements with equivalent inductance, current rating, DC resistance specifications, and operating temperature range. While core material differs (alumina versus ceramic), both materials are acceptable for unshielded drum core inductors operating within these electrical parameters. The CW160808-82NJ features a standardized 0603 (1608 Metric) package format and active product status.

Parameter Comparison

Engineering Selection Recommendations

The Bourns Inc. CW160808-82NJ is suitable as a substitute for the obsolete 0603-82NK on the basis of equivalent electrical specifications and active product status. The CW160808-82NJ provides improved inductance tolerance (±5% versus ±10%), standardized 0603 (1608 Metric) package definition, and ROHS3 compliance, addressing regulatory and availability concerns associated with the obsolete part.

Component selection must account for physical layout compatibility, as the substitute features marginally different dimensions: 0.065" L x 0.041" W (1.65mm x 1.05mm) versus the original 0.071" L x 0.045" W (1.80mm x 1.14mm). The height difference is also minimal: 0.047" (1.20mm) for the CW160808-82NJ versus 0.040" (1.02mm) for the 0603-82NK.

Frequently Asked Questions (FAQ)

Q: What electrical parameters must match between the original and substitute inductor?

A: The inductance value (82 nH), current rating (400 mA), DC resistance (540 mOhm maximum), operating temperature range (-40°C to 125°C), and shielding configuration (unshielded) must remain constant. These parameters define circuit performance and thermal management requirements.

Q: Why does the core material differ between the two parts?

A: The original uses ceramic core material while the substitute uses alumina. Both materials are acceptable for unshielded drum core inductors meeting the specified electrical parameters. Core material selection does not affect compatibility when electrical specifications remain equivalent.

Q: Are there package or physical footprint considerations for this substitution?

A: The CW160808-82NJ uses a standardized 0603 (1608 Metric) package versus the nonstandard package of the 0603-82NK. Physical dimensions differ slightly but remain compatible for surface mount applications with minor PCB layout adjustments. Verify PCB footprint accommodation before final design release.

Q: What is the significance of the product status difference?

A: The 0603-82NK is classified as obsolete, limiting future availability and supply chain continuity. The CW160808-82NJ maintains active product status, ensuring ongoing availability, technical support, and compliance with current regulatory requirements.

Q: Does the improved inductance tolerance of the substitute affect circuit design?

A: The CW160808-82NJ provides ±5% tolerance compared to ±10% for the original part. This improved tolerance reduces component variation effects in the circuit but does not introduce incompatibility concerns. The tighter tolerance may reduce circuit tuning requirements in frequency-dependent applications.