74476014C Equivalent & Substitute Parts Reference

Part Overview

The Würth Elektronik 74476014C is a 47 nH unshielded drum core wirewound inductor rated for 500 mA with a maximum DC resistance of 310mOhm. This surface mount component operates across the temperature range of -40°C to 125°C and is designed for high-frequency applications up to 1.65 GHz self-resonant frequency. The part is currently active in production and ROHS3 compliant. Equivalent and substitute parts are identified for applications requiring alternative sourcing, inventory availability, or specific performance characteristics within the defined electrical and mechanical parameters.

Substiute Parts

74476014C

Würth ElektronikIn Stock: 90974476014C Datasheet

Current PartRFQ

CW201212-47NJ

Bourns Inc.In Stock: 7017CW201212-47NJ Datasheet

DirectRFQ

AISC-0805-R047J-T

Abracon LLCIn Stock: 3799AISC-0805-R047J-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74476014C are qualified based on the following critical parameters that determine functional equivalence:

Core Electrical Parameters:

• Inductance value: 47 nH ±5%
• Current rating: 500 mA minimum
• Shielding configuration: Unshielded
• Core material: Ceramic drum core

Mechanical Parameters:

• Mounting type: Surface mount
• Package classification: 0805 (2012 Metric)
• Operating temperature range: -40°C to 125°C minimum

Compliance Parameters:

• RoHS3 compliance
• REACH unaffected status
• ECCN EAR99 classification

Substitute parts CW201212-47NJ and AISC-0805-R047J-T meet these core requirements. Variations in DC resistance and Q factor are permissible within the scope of this product category, as these parameters do not affect the fundamental substitution criteria for 47 nH inductors in 0805 surface mount applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—74476014C, CW201212-47NJ, and AISC-0805-R047J-T—are active production components with ROHS3 compliance and REACH unaffected status. Selection between these parts is based on availability, lead time, and DC resistance requirements specific to the application circuit.

The CW201212-47NJ (Bourns Inc.) features lower DC resistance at 150mOhm, which reduces power dissipation in current-limited applications. The 74476014C and AISC-0805-R047J-T both specify 310mOhm maximum DC resistance and are electrically equivalent for applications where this resistance specification is acceptable.

All parts maintain identical inductance tolerance (±5%), current rating (500 mA), and operating temperature range (-40°C to 125°C), ensuring functional interchangeability within the defined electrical envelope.

Frequently Asked Questions (FAQ)

Q: Can CW201212-47NJ be used as a direct replacement for 74476014C?

A: Yes. Both parts share identical inductance (47 nH ±5%), current rating (500 mA), core material (ceramic), shielding (unshielded), package (0805), and operating temperature range (-40°C to 125°C). The CW201212-47NJ features lower DC resistance (150mOhm vs. 310mOhm), which is advantageous for power efficiency but does not prevent substitution.

Q: What is the difference between the DC resistance specifications?

A: The 74476014C and AISC-0805-R047J-T specify 310mOhm maximum DC resistance, while the CW201212-47NJ specifies 150mOhm. Lower DC resistance reduces resistive losses and heat generation. Selection depends on circuit requirements for power dissipation and impedance matching.

Q: Are all three parts available in the same package?

A: Yes. All three parts use the 0805 (2012 Metric) surface mount package with compatible footprints and mounting procedures. Physical dimensions vary slightly but remain within the 0805 classification.

Q: Do these parts have the same compliance certifications?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and classified as ECCN EAR99. MSL rating is 1 (Unlimited) for all parts.

Q: What is the self-resonant frequency range across these parts?

A: Self-resonant frequencies range from 1.6 GHz to 1.7 GHz. The 74476014C specifies 1.65 GHz, CW201212-47NJ specifies 1.7 GHz, and AISC-0805-R047J-T specifies 1.6 GHz. All values fall within acceptable limits for 47 nH inductors in this package class.

Q: Can these parts be used interchangeably in high-frequency applications?

A: Yes, within the specified frequency range. All parts are rated for inductance testing at 200 MHz and maintain stable performance to their respective self-resonant frequencies. Circuit design should account for the specific self-resonant frequency of the selected part.