S0603-47NJ2D Equivalent & Substitute Parts Reference

Part Overview

The S0603-47NJ2D is a 47 nH unshielded drum core wirewound inductor manufactured by API Delevan Inc., designed for surface mount applications in the 0603 (1608 Metric) package. This component operates at 600 mA current rating with a maximum DC resistance of 310 mOhm and is rated for operating temperatures from -55°C to 125°C. The part is currently active in production with 799 pieces available in inventory.

Equivalent and substitute parts are identified based on matching core electrical specifications: 47 nH inductance value, ±5% tolerance, 600 mA current rating, unshielded drum core construction, and 0603 (1608 Metric) surface mount package. Substitute components must maintain functional compatibility within these defined parameters.

Key Parameters

Parameter	Value
Inductance	47 nH
Tolerance	±5%
Current Rating	600 mA
DC Resistance (DCR)	310 mOhm Max
Core Type	Drum Core, Wirewound
Shielding	Unshielded
Package / Case	0603 (1608 Metric)
Mounting Type	Surface Mount
Operating Temperature Range	-55°C ~ 125°C

Substitute Part Grouping Explanation

Substitute parts for the S0603-47NJ2D are qualified based on the following matching electrical and mechanical parameters:

Core Matching Criteria:

Inductance value: 47 nH
Inductance tolerance: ±5%
Current rating: 600 mA
Core construction: Drum core, wirewound, alumina material
Shielding configuration: Unshielded
Package format: 0603 (1608 Metric) surface mount

Allowable Variations:

DC Resistance (DCR): Substitute parts with lower DCR values (280 mOhm) are acceptable as they represent improved performance characteristics
Operating temperature range: Substitute parts with -40°C minimum (versus -55°C) remain functionally compatible for most applications
Q factor and self-resonant frequency: Minor variations within the same inductance class are acceptable

Identified Substitutes:

CW160808-47NJ (Bourns Inc.)
PM0603-47NJ-RC (Bourns Inc.)

Both substitute parts meet all core electrical specifications and are qualified for direct replacement in the 0603 (1608 Metric) package footprint.

Parameter Comparison

Parameter	S0603-47NJ2D (API Delevan)	CW160808-47NJ (Bourns)	PM0603-47NJ-RC (Bourns)
Manufacturer	API Delevan Inc.	Bourns Inc.	Bourns Inc.
Inductance	47 nH	47 nH	47 nH
Tolerance	±5%	±5%	±5%
Current Rating (Amps)	600 mA	600 mA	600 mA
DC Resistance (DCR)	310 mOhm Max	280 mOhm	280 mOhm
Core Type	Drum Core, Wirewound	Drum Core, Wirewound	Drum Core, Wirewound
Core Material	Alumina	Alumina	Alumina
Shielding	Unshielded	Unshielded	Unshielded
Q @ Frequency	35 @ 200 MHz	35 @ 250 MHz	35 @ 250 MHz
Self Resonant Frequency	2 GHz	2.1 GHz	2.1 GHz
Operating Temperature	-55°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Size / Dimension	0.062" L x 0.035" W (1.58mm x 0.89mm)	0.065" L x 0.041" W (1.65mm x 1.05mm)	0.065" L x 0.041" W (1.65mm x 1.05mm)
Height - Seated (Max)	0.040" (1.02mm)	0.047" (1.20mm)	0.047" (1.20mm)
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	-	Tape & Reel (TR)	Tape & Reel (TR)
Product Status	Active	Active	Active

Engineering Selection Recommendations

S0603-47NJ2D (API Delevan Inc.):

Primary choice for applications requiring the extended operating temperature range of -55°C to 125°C
Suitable for designs where the maximum 310 mOhm DCR specification is acceptable
Product status: Active with 799 pieces in stock
RoHS non-compliant status must be evaluated against project requirements

CW160808-47NJ (Bourns Inc.):

Qualified substitute with improved DC resistance (280 mOhm versus 310 mOhm maximum)
ROHS3 compliant for applications requiring RoHS certification
Operating temperature range: -40°C to 125°C (suitable for most commercial and industrial applications)
Slightly larger physical dimensions (1.65mm x 1.05mm versus 1.58mm x 0.89mm) and height (1.20mm versus 1.02mm) require PCB layout verification
Available in Tape & Reel packaging
Inventory: 3460 pieces

PM0603-47NJ-RC (Bourns Inc.):

Qualified substitute with identical electrical specifications to CW160808-47NJ
ROHS3 compliant for applications requiring RoHS certification
Operating temperature range: -40°C to 125°C
Physical dimensions and height match CW160808-47NJ
Available in Tape & Reel packaging
Highest inventory availability: 14227 pieces
Recommended for high-volume production requirements

Both Bourns substitutes provide lower DCR values and improved compliance certifications. Physical dimension differences require verification against PCB layout constraints before implementation.

Frequently Asked Questions (FAQ)

Q1: Can CW160808-47NJ or PM0603-47NJ-RC be used as direct replacements for S0603-47NJ2D?

A: Both Bourns parts are functionally equivalent for the core electrical specifications: 47 nH inductance, ±5% tolerance, 600 mA current rating, and 0603 (1608 Metric) surface mount package. However, physical dimensions differ slightly. The Bourns parts measure 1.65mm x 1.05mm with 1.20mm maximum height, compared to the API Delevan part at 1.58mm x 0.89mm with 1.02mm maximum height. PCB layout must accommodate these dimensional differences before substitution.

Q2: What is the significance of the lower DC Resistance (DCR) in the Bourns substitutes?

A: The Bourns CW160808-47NJ and PM0603-47NJ-RC both feature 280 mOhm DCR compared to the S0603-47NJ2D maximum of 310 mOhm. Lower DCR represents reduced resistive losses in the inductor, resulting in improved efficiency and lower heat generation at the same current levels. This is a performance improvement and does not affect compatibility.

Q3: Does the operating temperature range difference affect substitution suitability?

A: The S0603-47NJ2D operates from -55°C to 125°C, while both Bourns substitutes operate from -40°C to 125°C. The Bourns parts have a narrower minimum temperature specification. Substitution is appropriate for applications operating within the -40°C to 125°C range. Applications requiring operation below -40°C must retain the original S0603-47NJ2D component.

Q4: Are there compliance differences between the main part and substitutes?

A: Yes. The S0603-47NJ2D is RoHS non-compliant, while both Bourns substitutes (CW160808-47NJ and PM0603-47NJ-RC) are ROHS3 compliant. All three parts are REACH unaffected and classified as EAR99 for export control purposes. Projects requiring RoHS compliance must use the Bourns substitutes.

Q5: Which substitute should be selected for high-volume production?

A: PM0603-47NJ-RC is recommended for high-volume applications due to the highest inventory availability (14227 pieces) and identical electrical specifications to CW160808-47NJ. Both parts are available in Tape & Reel packaging suitable for automated assembly processes.

Q6: How do the Q factor and self-resonant frequency differences impact circuit performance?

A: The S0603-47NJ2D exhibits Q of 35 at 200 MHz with 2 GHz self-resonant frequency. The Bourns substitutes show Q of 35 at 250 MHz with 2.1 GHz self-resonant frequency. These minor variations are within the same inductance class and do not affect functional compatibility for standard RF and high-frequency applications in the specified frequency ranges.

Q7: What packaging formats are available for each part?

A: The S0603-47NJ2D packaging format is not specified in the data. Both Bourns substitutes (CW160808-47NJ and PM0603-47NJ-RC) are supplied in Tape & Reel (TR) format, standard for automated surface mount assembly processes.

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