74476016C Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 74476016C is a 68 nH unshielded drum core wirewound inductor rated for 500 mA with a maximum DC resistance of 380 mOhm. This surface mount component operates across the temperature range of -40°C to 125°C and is designed for high-frequency applications with a self-resonant frequency of 1.45 GHz. The part is actively manufactured and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances.

Substiute Parts

74476016C

Würth ElektronikIn Stock: 2119974476016C Datasheet

Current PartRFQ

CW201212-68NJ

Bourns Inc.In Stock: 11196CW201212-68NJ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74476016C is determined by the following critical parameters:

• Inductance Value: Must be 68 nH with ±5% tolerance
• Current Rating: Must support minimum 500 mA
• Core Material & Shielding: Ceramic, unshielded drum core construction
• Mounting & Package: Surface mount, 0805 package footprint compatibility
• Operating Temperature Range: -40°C to 125°C minimum
• Self-Resonant Frequency: 1.45 GHz or higher
• Compliance: ROHS3 compliant, REACH unaffected

The Bourns Inc. CW201212-68NJ meets all substitution criteria. While the DC resistance specification differs (270 mOhm versus 380 mOhm maximum), the lower resistance value represents improved performance within the same functional category and does not restrict compatibility in applications designed for the 74476016C.

Parameter Comparison

Engineering Selection Recommendations

Both the 74476016C and CW201212-68NJ are active products with ROHS3 compliance and REACH unaffected status, making them suitable for current production applications. The CW201212-68NJ offers a lower DC resistance specification (270 mOhm versus 380 mOhm maximum), which results in reduced power dissipation and improved Q factor (60 versus 50 at 500 MHz). Selection between these parts should be based on inventory availability, lead time requirements, and supplier preference, as both meet the electrical and mechanical specifications for equivalent functionality.

Frequently Asked Questions (FAQ)

Q: Can the CW201212-68NJ replace the 74476016C in existing designs?

A: Yes. Both inductors share identical inductance values (68 nH ±5%), current ratings (500 mA), core construction (ceramic unshielded drum core), operating temperature range (-40°C to 125°C), and self-resonant frequency (1.45 GHz). The 0805 package footprint is compatible between both parts.

Q: What is the significance of the different DC resistance values?

A: The CW201212-68NJ specifies 270 mOhm DC resistance compared to the 74476016C maximum of 380 mOhm. Lower DC resistance reduces resistive losses and power dissipation in the inductor, which is a performance advantage. Applications designed for the 74476016C will operate within specification with the lower resistance value.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (unlimited moisture sensitivity level). Both are suitable for equivalent regulatory and environmental requirements.

Q: How do the Q factor differences affect circuit performance?

A: The CW201212-68NJ exhibits a Q factor of 60 at 500 MHz compared to 50 for the 74476016C. Higher Q indicates lower losses and better frequency selectivity, representing improved performance characteristics within the same functional specification.

Q: Are the physical dimensions compatible?

A: Both parts use the 0805 package footprint. The 74476016C dimensions are 0.090" L x 0.067" W (2.29mm x 1.70mm) with 0.058" height, while the CW201212-68NJ measures 0.083" L x 0.059" W (2.10mm x 1.50mm) with 0.059" height. These minor dimensional variations are within standard 0805 package tolerances and compatible with standard PCB footprints.