74479287147 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 74479287147 is a 470 nH shielded molded inductor rated for 3.3 A continuous current with a maximum DC resistance of 33 mOhm. This component is designed for surface mount applications in the 1008 (2520 Metric) package format. The part is currently active in production and widely available in inventory. Equivalent and substitute parts are identified to provide design flexibility, support supply chain continuity, and accommodate specific performance requirements in applications where the primary part may be unavailable or where enhanced electrical characteristics are beneficial.

Substiute Parts

74479287147
Würth ElektronikIn Stock: 353474479287147 Datasheet
74479287147
Current Part
MPI2510V2-R47-R
Eaton - Electronics DivisionIn Stock: 6956MPI2510V2-R47-R Datasheet
MPI2510V2-R47-R
MFR Recommended

Key Parameters

Parameter Value
Inductance 470 nH
Inductance Tolerance ±30%
Current Rating (Continuous) 3.3 A
Current - Saturation (Isat) 5 A
DC Resistance (DCR) Maximum 33 mOhm
Shielding Shielded
Frequency - Self Resonant 100 MHz
Operating Temperature Range -40°C to 125°C
Package / Case 1008 (2520 Metric)
Mounting Type Surface Mount
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 74479287147 are qualified based on the following critical parameters:

  • Inductance Value: 470 nH (exact match required)
  • Package / Case: 1008 (2520 Metric) (mechanical compatibility)
  • Mounting Type: Surface Mount (assembly process compatibility)
  • Shielding: Shielded (electromagnetic performance requirement)
  • Operating Temperature Range: -40°C to 125°C (thermal compatibility)
  • Frequency - Self Resonant: 100 MHz (frequency domain performance)

Substitute parts may differ in current rating, DC resistance, saturation current, inductance tolerance, and RoHS compliance status, provided they meet or exceed the minimum electrical requirements of the application and maintain mechanical and thermal compatibility.

Parameter Comparison

Parameter 74479287147 (Würth Elektronik) MPI2510V2-R47-R (Eaton)
Inductance 470 nH 470 nH
Inductance Tolerance ±30% ±20%
Current Rating (Amps) 3.3 A 4.4 A
Current - Saturation (Isat) 5 A 6 A
DC Resistance (DCR) Maximum 33 mOhm 25 mOhm
Shielding Shielded Shielded
Frequency - Self Resonant 100 MHz 100 MHz
Operating Temperature Range -40°C to 125°C -40°C to 125°C
Package / Case 1008 (2520 Metric) 1008 (2520 Metric)
Size / Dimension 0.098" L x 0.079" W (2.50mm x 2.00mm) 0.098" L x 0.079" W (2.50mm x 2.00mm)
Height - Seated (Max) 0.039" (1.00mm) 0.041" (1.05mm)
Mounting Type Surface Mount Surface Mount
RoHS Status ROHS3 Compliant RoHS Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)

Engineering Selection Recommendations

The Eaton MPI2510V2-R47-R is a qualified substitute for the Würth Elektronik 74479287147 based on electrical and mechanical compatibility. The substitute part provides improved performance characteristics: higher continuous current rating (4.4 A versus 3.3 A), higher saturation current (6 A versus 5 A), lower DC resistance (25 mOhm maximum versus 33 mOhm maximum), and tighter inductance tolerance (±20% versus ±30%). Both parts are RoHS compliant and maintain identical operating temperature ranges, self-resonant frequencies, and package dimensions. The substitute part is suitable for applications requiring enhanced current handling capacity or reduced resistive losses. Both parts carry MSL Level 1 rating, indicating unlimited shelf life under standard storage conditions.

Frequently Asked Questions (FAQ)

Q: Can the MPI2510V2-R47-R be used as a direct replacement for the 74479287147?

A: Yes. Both parts share identical inductance values (470 nH), package formats (1008 / 2520 Metric), shielding characteristics, operating temperature ranges, and self-resonant frequencies. The substitute part meets or exceeds all electrical specifications of the primary part.

Q: What are the key differences between these two parts?

A: The MPI2510V2-R47-R offers higher current ratings (4.4 A continuous and 6 A saturation versus 3.3 A and 5 A), lower DC resistance (25 mOhm maximum versus 33 mOhm maximum), and tighter inductance tolerance (±20% versus ±30%). Physical height differs slightly (1.05mm versus 1.00mm maximum seated height).

Q: Are there any assembly or PCB layout considerations when switching between these parts?

A: Both parts use identical footprints (1008 / 2520 Metric) and surface mount assembly processes. The maximum seated height difference of 0.05mm (1.05mm versus 1.00mm) is negligible for standard PCB assembly and clearance requirements.

Q: Do both parts meet RoHS compliance requirements?

A: Yes. The 74479287147 is ROHS3 compliant. The MPI2510V2-R47-R is RoHS compliant. Both parts satisfy RoHS regulatory requirements.

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

A: Both parts carry MSL Level 1 rating, which indicates unlimited shelf life and no special moisture control requirements during storage or handling.

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