742792031 The 742792031 is a surface-mount ferrite bead from Würth Elektronik with 300 Ω impedance at 100 MHz and a 3 A rated current. It comes in an 0805 (2012 Metric) package for signal line filtering.
Mfr Part #:

742792031

Available from 5 distributors
Mfr Name: Würth Elektronik
Würth Elektronik
The 742792031 is a surface-mount ferrite bead from Würth Elektronik with 300 Ω impedance at 100 MHz and a 3 A rated current. It comes in an 0805 (2012 Metric) package for signal line filtering.
✓ Total Stock: 15,382 pcs
$ Price Range: $0.18 - $0.23

742792031 Available from 5 distributors

✓ Authorised
✓ Non-Authorised

742792031 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current Rating (Max)
DC Resistance (DCR) (Max)
Filter Type
Halogen Free
Height (Max)
Impedance @ Frequency
Length
Mounting Type
Number of Lines
Operating Temperature
SVHC Present
Storage Temperature
Tape & Reel
Width

742792031 Description

Short technical summary and product information.

The 742792031 is a surface-mount ferrite bead from Würth Elektronik, part of the WE-CBF series for EMI suppression. It is a single-line filter designed for signal line filtering, with a nominal impedance of 300 Ω at 100 MHz (±25%) and a typical maximum impedance of 350 Ω at 200 MHz.

 

The component has a maximum DC resistance of 0.05 Ω at 20°C and is rated for currents of 2 A at a 20 K temperature rise and 3 A at a 40 K rise. The maximum current rating is 3 A. Operating temperature range is -55°C to 125°C.

 

Supplied in an 0805 (2012 Metric) package, it measures 2.00 mm x 1.20 mm with a maximum height of 1.10 mm. The part is surface-mount compatible, has MSL 1, and is RoHS compliant, REACH conform, and halogen free. It also meets AEC-Q200 Grade 1 component qualification.

 

This ferrite bead is suitable for EMI suppression in signal lines where high-frequency noise filtering is required. Designers should observe the rated current limit to prevent excessive heating, and the part is intended for general electronic equipment. For safety-critical applications, consult the manufacturer's usage limitations.

742792031 Quick Information

Product Type: Ferrite Bead
Series: WE-CBF
Canonical Name: WE-CBF SMT EMI Suppression Ferrite Bead, 300 Ω, 0805
Subcategory: Signal Line Ferrite Bead

742792031 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 75
REACH Status: Conform or declared (EC 1907/2006)
Lead Free: Yes

742792031 Estimated Pricing

Qty Low High
1+ $0.23 $0.23
50+ $0.22 $0.22
100+ $0.21 $0.21
500+ $0.20 $0.20
1,000+ $0.19 $0.19
2,500+ $0.18 $0.18
4,000+ $0.18 $0.18

Estimated market price range - modelled values for guidance only, not live distributor offers.

742792031 Features

  • 300 Ω impedance at 100 MHz nominal.
  • Maximum DC resistance of 0.05 Ω.
  • Rated current up to 3 A.
  • 0805 surface-mount package, RoHS compliant.
  • AEC-Q200 Grade 1 qualified for automotive.

742792031 Applications

  • EMI suppression for signal line filtering.
  • Suitable for high-current power circuits.
  • Used in compact surface-mount boards.
  • Automotive electronics with AEC-Q200 qualification.

742792031 FAQs

7 frequently asked questions generated from this part’s specifications.
What package / case does the 742792031 use?

It uses an 0805 (2012 Metric) surface-mount package measuring 2.00 mm x 1.20 mm with a maximum height of 1.10 mm.

What is the operating temperature range of the 742792031?

The operating temperature range is -55°C to 125°C.

Is the 742792031 RoHS compliant?

Yes, it is RoHS compliant per 2011/65/EU and 2015/863, and also REACH conform and halogen free.

What impedance does the 742792031 provide at 100 MHz?

Nominal impedance is 300 Ω ±25% at 100 MHz, with maximum impedance typically 350 Ω at 200 MHz.

What is the rated current of the 742792031 ferrite bead?

It is rated at 2 A for a 20 K temperature rise and 3 A for a 40 K rise; the maximum current rating is 3 A.

What is the DC resistance of the 742792031?

The maximum DC resistance is 0.05 Ω at 20°C.

Is the 742792031 qualified for automotive applications?

The component meets AEC-Q200 Grade 1 component qualification.

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