S0603-47NJ3S Equivalent & Substitute Parts

Part Overview

The S0603-47NJ3S is a 47 nH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 600 mA continuous current with 310mOhm maximum DC resistance. This component is classified as Active product status. Substitute parts become necessary when the primary part is unavailable from inventory, when operational requirements demand improved electrical characteristics such as lower DC resistance, or when compliance with specific regulatory standards such as ROHS3 certification is required in the application.

Substiute Parts

S0603-47NJ3S

API Delevan Inc.In Stock: 1079S0603-47NJ3S Datasheet

Current PartRFQ

CW160808-47NJ

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

SimilarRFQ

PM0603-47NJ-RC

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

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts CW160808-47NJ and PM0603-47NJ-RC are qualified as electrical equivalents to the primary part S0603-47NJ3S based on the following parameters:

Matching Electrical Parameters:

• Inductance: 47 nH (identical)
• Inductance Tolerance: ±5% (identical)
• Current Rating: 600 mA (identical)
• Shielding: Unshielded (identical)
• Core Material: Alumina (identical)
• Package/Case: 0603 (1608 Metric) (identical)
• Mounting Type: Surface Mount (identical)

Allowable Deviations:

• DC Resistance: 280mOhm (substitute) vs. 310mOhm Max (primary) – lower resistance is permissible
• Q @ Frequency: 35 @ 250MHz (substitute) vs. 35 @ 200MHz (primary) – equivalent quality factor with higher test frequency
• Self Resonant Frequency: 2.1 GHz (substitute) vs. 2 GHz (primary) – higher value is acceptable
• Operating Temperature: -40°C to 125°C (substitute) vs. -55°C to 125°C (primary) – acceptable for most applications
• Physical Dimensions: Minor variations within tolerance for 0603 package class

Parameter Comparison

Engineering Selection Recommendations

Both CW160808-47NJ and PM0603-47NJ-RC are electrically and mechanically compatible substitutes for the S0603-47NJ3S. The primary distinction between the primary part and substitute options is regulatory compliance status. The primary part carries RoHS non-compliant designation, while both Bourns substitute parts achieve ROHS3 compliance. Selection should be based on application-specific regulatory requirements:

• Applications with ROHS3 requirement: CW160808-47NJ or PM0603-47NJ-RC
• Applications without regulatory restriction: Any of the three parts are functionally equivalent
• Lower DC resistance benefit: Both substitute parts offer 280mOhm DC resistance versus the 310mOhm maximum of the primary part, resulting in reduced thermal dissipation
• Extended low-temperature operation: The primary part operates to -55°C, while substitutes operate to -40°C minimum; applications requiring -55°C operation must use S0603-47NJ3S

Frequently Asked Questions (FAQ)

Can CW160808-47NJ directly replace S0603-47NJ3S in production? Both parts are electrically and mechanically equivalent at the circuit level. Direct replacement is possible when the -40°C to 125°C operating range of the CW160808-47NJ is acceptable for your application. If your design requires -55°C operation, the primary part S0603-47NJ3S must be used.

What is the difference between CW160808-47NJ and PM0603-47NJ-RC? Both parts are electrically identical with matching inductance, current rating, DC resistance, and frequency characteristics. The primary difference is inventory availability (3460 Pcs vs. 14227 Pcs) and packaging configuration. Both are ROHS3 compliant Bourns parts suitable for equivalent substitution.

Does the DC resistance difference of 30mOhm affect circuit performance? The substitute parts offer 280mOhm versus the primary part's 310mOhm maximum DCR. This 30mOhm reduction typically results in lower power dissipation and reduced component heating, which is generally beneficial. Applications with tight thermal budgets may benefit from this improvement.

Are there mechanical compatibility considerations between these parts? All three parts use the 0603 (1608 Metric) surface mount package with identical mounting type. Minor dimensional variations exist (primary part: 0.062" L x 0.035" W vs. substitute parts: 0.065" L x 0.041" W), but these fall within standard PCB design tolerances and do not require layout changes.

Which substitute part should I select? PM0603-47NJ-RC is recommended when supply continuity is a priority due to higher inventory levels (14227 Pcs). CW160808-47NJ is suitable when either availability is equivalent or cost considerations favor the CW160808 series. Both offer identical electrical performance.

Is ROHS3 compliance mandatory for my application? ROHS3 compliance is mandatory for products sold in the European Union and certain other jurisdictions. If your design targets these markets, CW160808-47NJ or PM0603-47NJ-RC must be selected. For applications without such regulatory requirements, all three parts are functionally equivalent.