0603-47NJ Equivalent & Substitute Parts

Part Overview

The 0603-47NJ is a 47 nH unshielded drum core wirewound inductor manufactured by API Delevan Inc., designed for surface mount applications with a current rating of 600 mA and maximum DC resistance of 280 mOhm. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The part operates across a temperature range of -40°C to 125°C and demonstrates a Q factor of 38 at 200 MHz with a self-resonant frequency of 2 GHz.

Substiute Parts

0603-47NJ

API Delevan Inc.In Stock: 8470603-47NJ Datasheet

Current PartRFQ

LQW18AS47NJ00D

Murata ElectronicsIn Stock: 876LQW18AS47NJ00D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 0603-47NJ is determined by the following critical electrical and mechanical parameters:

• Inductance Value: 47 nH with ±5% tolerance
• Current Rating: Minimum 600 mA capability
• DC Resistance: Maximum 280 mOhm
• Core Configuration: Drum core wirewound construction
• Shielding: Unshielded topology
• Frequency Performance: Q factor and self-resonant frequency characteristics at specified test frequencies
• Operating Temperature: -40°C to 125°C range
• Mounting: Surface mount configuration
• Physical Dimensions: Compatible footprint within 0.071" L x 0.045" W envelope
• Moisture Sensitivity: MSL 1 classification

The LQW18AS47NJ00D from Murata Electronics meets these substitution criteria through equivalent electrical specifications and compatible physical packaging for surface mount assembly.

Parameter Comparison

Engineering Selection Recommendations

The LQW18AS47NJ00D represents the primary substitute for the obsolete 0603-47NJ based on the following factors:

Product Status: The 0603-47NJ is classified as obsolete, whereas the LQW18AS47NJ00D maintains active product status with current manufacturing support and availability.

Compliance Certifications: The LQW18AS47NJ00D is ROHS3 compliant, providing regulatory alignment for applications subject to RoHS requirements. Both parts maintain REACH Unaffected status and EAR99 ECCN classification.

Packaging and Availability: The LQW18AS47NJ00D is supplied in standard Tape & Reel (TR) packaging, facilitating automated assembly processes. Current inventory of 861 pieces supports procurement requirements.

Electrical Equivalence: The 47 nH inductance value and surface mount configuration establish functional compatibility for direct replacement in circuit applications designed for the original 0603-47NJ specification.

Frequently Asked Questions (FAQ)

Q: Can the LQW18AS47NJ00D directly replace the 0603-47NJ in existing designs?

A: The LQW18AS47NJ00D provides electrical equivalence at the 47 nH inductance specification. Physical footprint compatibility and electrical performance characteristics must be verified against the specific circuit application requirements and PCB layout constraints.

Q: What is the significance of the product status difference between these parts?

A: The 0603-47NJ is obsolete and subject to limited or discontinued manufacturing. The LQW18AS47NJ00D maintains active status with ongoing production, ensuring long-term availability and supply chain continuity.

Q: How do packaging differences affect component selection?

A: The 0603-47NJ uses nonstandard packaging, while the LQW18AS47NJ00D is supplied in standard Tape & Reel format. This difference impacts procurement processes, automated assembly compatibility, and handling procedures.

Q: Are there compliance considerations for switching between these parts?

A: The LQW18AS47NJ00D is ROHS3 compliant, whereas the 0603-47NJ is RoHS non-compliant. Applications subject to RoHS regulations benefit from the compliance status of the substitute part.

Q: What parameters must remain constant for substitution validity?

A: The 47 nH inductance value, ±5% tolerance, 600 mA current rating capability, 280 mOhm maximum DC resistance, unshielded drum core configuration, and -40°C to 125°C operating temperature range define the substitution boundary. Deviations from these specifications require re-evaluation of circuit compatibility.