WE-WAFB Ferrite Bead Axial 82 Ohms @ 100 MHz (7427604)

Part Overview

The Würth Elektronik WE-WAFB 7427604 is an axial ferrite bead designed for electromagnetic interference (EMI) suppression in electronic circuits. This component operates at 82 Ohms impedance at 100 MHz with a maximum current rating of 3A and minimal DC resistance of 5mOhm. The part is currently active in production and maintains full compliance with RoHS3 and REACH regulations. Equivalent substitute parts may be required due to inventory constraints, design revisions, or regional availability considerations.

Substiute Parts

7427604

Würth ElektronikIn Stock: 59207427604 Datasheet

Current PartRFQ

74276041

Würth ElektronikIn Stock: 583774276041 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WE-WAFB 7427604 is determined by the following critical parameters:

• Impedance @ Frequency: 82 Ohms @ 100 MHz
• Current Rating (Max): 3A
• DC Resistance (DCR) (Max): 5mOhm
• Package / Case: Axial
• Mounting Type: Through Hole
• Size / Dimension: 0.138" Dia x 0.236" L (4.60mm x 6.00mm)
• Operating Temperature Range: -40°C ~ 125°C
• RoHS Status: ROHS3 Compliant

The substitute part 74276041 belongs to the same WE-WAFB series and maintains identical electrical performance parameters, physical dimensions, mounting characteristics, and regulatory compliance. The impedance variance of 7 Ohms (89 Ohms vs. 82 Ohms @ 100 MHz) represents a 8.5% deviation within acceptable tolerance for ferrite bead applications where impedance matching is not critical to circuit function.

Parameter Comparison

Engineering Selection Recommendations

Both the primary part 7427604 and substitute part 74276041 maintain active production status with full RoHS3 and REACH compliance. Selection between these components should be based on impedance requirements specific to the application circuit. The 7 Ohm impedance difference at 100 MHz represents the only electrical variance between the two parts. All other parameters—current handling, thermal performance, physical form factor, and regulatory certifications—are identical. Both parts are suitable for through-hole PCB assembly in applications requiring ferrite bead EMI suppression within the specified temperature and current operating ranges.

Frequently Asked Questions (FAQ)

Q: Can 74276041 be used as a direct replacement for 7427604?

A: Yes. Both parts share identical physical dimensions (0.138" Dia x 0.236" L), mounting type (Through Hole Axial), current rating (3A), DC resistance (5mOhm), and operating temperature range (-40°C ~ 125°C). The impedance difference of 7 Ohms at 100 MHz is the only electrical distinction.

Q: What is the impedance difference between these parts?

A: The 7427604 operates at 82 Ohms @ 100 MHz, while the 74276041 operates at 89 Ohms @ 100 MHz. This represents an 8.5% variance in impedance specification.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both 7427604 and 74276041 are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: Do these parts have the same packaging format?

A: Yes. Both parts are supplied in Cut Tape (CT) packaging and maintain identical axial through-hole form factors suitable for standard PCB assembly processes.

Q: What is the maximum current these ferrite beads can handle?

A: Both the 7427604 and 74276041 are rated for a maximum current of 3A with a DC resistance of 5mOhm maximum.