Equivalent & Substitute Parts for Würth Elektronik 7447908

Part Overview

The Würth Elektronik 7447908 is a 10 µH unshielded multilayer inductor designed for surface mount applications in the 0805 (2012 Metric) package. This component operates at 15 mA current rating with a maximum DC resistance of 1 Ohm and functions across the temperature range of -55°C to 125°C. The part is Active in product status and ROHS3 compliant, making it suitable for modern electronic assemblies requiring compact inductance solutions.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductor category.

Substiute Parts

7447908

Würth ElektronikIn Stock: 102547447908 Datasheet

Current PartRFQ

CV201210-100K

Bourns Inc.In Stock: 10153CV201210-100K Datasheet

DirectRFQ

AIML-0805-100K-T

Abracon LLCIn Stock: 5794AIML-0805-100K-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Würth Elektronik 7447908 are qualified based on the following criteria:

Electrical Parameters (Must Match):

• Inductance value: 10 µH
• Inductance tolerance: ±10%
• Current rating: 15 mA minimum
• Operating temperature range: -55°C to 125°C minimum
• Inductance test frequency: 2 MHz

Mechanical Parameters (Must Match):

• Package / Case: 0805 (2012 Metric)
• Mounting type: Surface Mount
• Physical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variations:

• DC Resistance (DCR): Up to 1.15 Ohm maximum (original specification: 1.0 Ohm maximum)
• Shielding: Substitutes may be shielded or unshielded
• Core material: Ferrite or Nickel Zinc Ferrite acceptable
• Quality factor (Q): Variation permitted within manufacturer specifications

The identified substitute parts meet all mandatory electrical, mechanical, and compliance requirements while maintaining functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Würth Elektronik 7447908 (Primary Part): Active product status with ROHS3 compliance and REACH unaffected designation. Unshielded configuration with 1.0 Ohm maximum DCR and 28 MHz self-resonant frequency. Suitable for applications where unshielded inductors are acceptable and lower DCR is required.

Bourns CV201210-100K (Direct Substitute): Active product status with ROHS3 compliance and REACH unaffected designation. Shielded configuration with 1.15 Ohm maximum DCR and 24 MHz self-resonant frequency. Shielding provides electromagnetic isolation benefits in noise-sensitive circuits. DCR specification allows 0.15 Ohm additional resistance compared to primary part.

Abracon AIML-0805-100K-T (Direct Substitute): Active product status with ROHS3 compliance and REACH unaffected designation. Shielded configuration with 1.15 Ohm maximum DCR and 24 MHz self-resonant frequency. Seated height of 0.041" (1.05mm) provides lower profile compared to primary part and Bourns substitute. Shielding provides electromagnetic isolation benefits in noise-sensitive circuits.

All three parts maintain identical inductance values, current ratings, operating temperature ranges, and compliance certifications. Selection between parts depends on shielding requirements, DCR tolerance, self-resonant frequency specifications, and physical height constraints in the application.

Frequently Asked Questions (FAQ)

Q: Can the Bourns CV201210-100K replace the Würth Elektronik 7447908 in all applications?

A: The Bourns CV201210-100K meets all mandatory electrical and mechanical specifications for substitution. The primary differences are shielding (shielded vs. unshielded) and DCR specification (1.15 Ohm vs. 1.0 Ohm maximum). Applications requiring unshielded inductors or DCR below 1.15 Ohm require evaluation of circuit-specific requirements.

Q: What is the significance of the shielding difference between the Würth Elektronik 7447908 and substitute parts?

A: The Würth Elektronik 7447908 is unshielded, while both Bourns CV201210-100K and Abracon AIML-0805-100K-T are shielded. Shielded inductors reduce electromagnetic field radiation and susceptibility to external magnetic fields. Unshielded inductors occupy less board space and may be preferred in applications where electromagnetic isolation is not required.

Q: Are there physical height differences between these parts?

A: The Würth Elektronik 7447908 and Bourns CV201210-100K both have a maximum seated height of 0.057" (1.45mm). The Abracon AIML-0805-100K-T has a lower maximum seated height of 0.041" (1.05mm), providing a 0.016" (0.40mm) reduction. This difference is significant in space-constrained applications with height limitations.

Q: Do all three parts have identical inductance test frequencies?

A: Yes. All three parts are tested at 2 MHz inductance frequency, ensuring consistent measurement standards across manufacturers.

Q: What is the moisture sensitivity level for these inductors?

A: All three parts have Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Are all parts ROHS3 compliant?

A: Yes. The Würth Elektronik 7447908, Bourns CV201210-100K, and Abracon AIML-0805-100K-T are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the difference in self-resonant frequency between the primary part and substitutes?

A: The Würth Elektronik 7447908 has a self-resonant frequency of 28 MHz, while both the Bourns CV201210-100K and Abracon AIML-0805-100K-T have self-resonant frequencies of 24 MHz. This 4 MHz difference may affect performance in high-frequency applications near these resonance points.

Q: Can the Abracon AIML-0805-100K-T be used in applications with strict height limitations?

A: Yes. The Abracon AIML-0805-100K-T has a maximum seated height of 0.041" (1.05mm), which is 0.016" lower than the primary part and Bourns substitute. This makes it suitable for applications with restricted vertical clearance.