S0603-47NJ2C Equivalent & Substitute Parts

Part Overview

The S0603-47NJ2C is a 47 nH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 600 mA continuous current with a maximum DC resistance of 310 mOhm. This surface mount component in 0603 (1608 Metric) package configuration is actively supported and suitable for RF and high-frequency circuit applications. Substitute parts may be required due to inventory availability, compliance requirements, or design optimization for DC resistance and operating temperature ranges.

Substiute Parts

S0603-47NJ2C

API Delevan Inc.In Stock: 703S0603-47NJ2C Datasheet

Current PartRFQ

CW160808-47NJ

Bourns Inc.In Stock: 3502CW160808-47NJ Datasheet

SimilarRFQ

PM0603-47NJ-RC

Bourns Inc.In Stock: 14269PM0603-47NJ-RC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of 47 nH inductors is determined by the following critical electrical parameters: inductance value (47 nH), inductance tolerance (±5%), current rating (600 mA minimum), DC resistance (must not exceed application limits), core type (alumina drum core), shielding characteristic (unshielded), and package footprint (0603 / 1608 Metric). All identified substitute parts match the primary electrical specifications and package requirements. DC resistance and operating temperature range variations are within allowable design margins for most RF applications. Mechanical dimensions show minor variations that must be confirmed for PCB layout compatibility in dense circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The CW160808-47NJ and PM0603-47NJ-RC inductors from Bourns Inc. are direct electrical equivalents to the S0603-47NJ2C. Both Bourns alternatives are ROHS3 compliant, providing regulatory advantage for designs requiring environmental compliance. The Bourns parts feature improved DC resistance (280 mOhm versus 310 mOhm maximum), resulting in lower power dissipation. Both substitute parts are actively supported products with equivalent moisture sensitivity ratings.

The primary design consideration is the operating temperature minimum: the API Delevan part operates from -55°C, while Bourns alternatives are rated from -40°C. Applications requiring extended low-temperature operation below -40°C must retain the S0603-47NJ2C. For standard industrial and commercial temperature ranges (-40°C to 125°C), either substitute part is electrically and mechanically compatible.

Minor dimensional variations exist between the main part and substitutes: the Bourns inductors are marginally larger (0.065" × 0.041" versus 0.062" × 0.035") and taller (0.047" versus 0.040" seated height). PCB layout designs with tight component spacing must account for these mechanical differences.

Frequently Asked Questions (FAQ)

Q: Can the Bourns CW160808-47NJ or PM0603-47NJ-RC be directly substituted for the API Delevan S0603-47NJ2C?

A: Yes, for applications operating within the -40°C to 125°C temperature range. All three inductors share identical inductance (47 nH), tolerance (±5%), current rating (600 mA), core material (alumina), shielding (unshielded), and package footprint (0603 / 1608 Metric). The Bourns parts offer lower DC resistance and improved RoHS compliance.

Q: What are the DC resistance implications of the substitution?

A: The API Delevan S0603-47NJ2C specifies 310 mOhm maximum DCR, while both Bourns substitutes (CW160808-47NJ and PM0603-47NJ-RC) feature 280 mOhm DCR. The lower resistance reduces I²R power dissipation in the inductor, benefiting thermal performance. For current-limited applications, this difference is typically negligible; however, designs operating at maximum 600 mA rating will experience slightly improved efficiency with the Bourns alternatives.

Q: Are the physical dimension differences critical for PCB layout?

A: The Bourns parts measure 0.065" L × 0.041" W (versus 0.062" × 0.035" for the API Delevan) and feature 0.047" maximum seated height (versus 0.040"). In standard PCB layouts with conventional component spacing, these differences are accommodated. However, designs with restrictive spatial constraints, dense component arrays, or critical trace routing near the inductor must confirm physical compatibility before substitution.

Q: Which substitute should be selected between CW160808-47NJ and PM0603-47NJ-RC?

A: Both parts are electrically and mechanically identical. Selection depends on supply chain factors: CW160808-47NJ is available as 3,460 pieces in stock, while PM0603-47NJ-RC offers greater availability at 14,227 pieces. Both are supplied in Tape & Reel (TR) packaging suitable for automated assembly.

Q: What is the impact of the temperature range difference between the main part and substitutes?

A: The API Delevan S0603-47NJ2C operates from -55°C to 125°C, while Bourns alternatives are rated -40°C to 125°C. For applications requiring operation below -40°C ambient temperature, the original API Delevan part must be retained. Standard commercial and industrial designs operating at -40°C or above are unaffected by this specification difference.

Q: Why would RoHS compliance matter for this substitution?

A: The API Delevan S0603-47NJ2C is RoHS non-compliant, while both Bourns alternatives (CW160808-47NJ and PM0603-47NJ-RC) are ROHS3 compliant. If the end-use application or regional regulations require RoHS compliance, the Bourns substitutes must be selected. The API Delevan part is suitable only for non-regulated applications or where RoHS exemptions are documented.