Mfr Part #:

74279243

Ferrite bead with 75Ω impedance at 100 MHz, rated current 2.5 A (ΔT=20K). Surface mount 1806 package, ideal for EMI suppression in automotive and high-current applications.

✓ Total Stock: 1,304 pcs

$ Price Range: $0.20 - $0.30

74279243 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Chanetech ✓ Non-Authorised Inventory information	1,304 pcs On Request	1304 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

74279243 Description

Short technical summary and product information.

The Würth Elektronik 74279243 (WE-CBF series) is a high-current SMT ferrite bead designed for EMI suppression. Key specifications include impedance 75Ω ±25% at 100 MHz, maximum impedance 160Ω typ at 1000 MHz, rated current up to 3 A (ΔT=40K), and low DC resistance of 0.025Ω max. The component is housed in a 1806 (4516 metric) package with moisture sensitivity level 1. Operating temperature range is -55°C to 125°C. It complies with RoHS (2011/65/EU & 2015/863), REACH, halogen-free standards, and is AEC-Q200 Grade 1 qualified for automotive applications. Design engineers should avoid exceeding the rated current to prevent excessive heat generation. This ferrite bead is suitable for power line filtering and signal line noise suppression in demanding environments.

74279243 Quick Information

Product Type: Ferrite Bead

Series: WE-CBF

Canonical Name: EMI Suppression Ferrite Bead, 75Ω at 100 MHz, 2.5A, 1806, Würth Elektronik

Subcategory: EMI Suppression

74279243 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): Level 1 Unlimited

REACH Status: Conform or declared

74279243 Estimated Pricing

Qty	Low	High
1+	$0.30	$0.30
10+	$0.29	$0.29
50+	$0.27	$0.27
100+	$0.26	$0.26
500+	$0.24	$0.24
1,000+	$0.23	$0.23
2,000+	$0.20	$0.20

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

74279243 Features

75Ω impedance at 100 MHz with ±25% tolerance.
Rated current up to 3 A at ΔT=40K.
Low DC resistance of 0.025 Ω maximum.
Surface mount 1806 (4516 metric) package.
AEC-Q200 Grade 1 automotive qualified.

74279243 Applications

Ideal for EMI suppression in automotive electronics.
Suitable for high-current power line filtering.
Used in signal lines requiring low loss.
Excellent for DC/DC converter output noise suppression.

74279243 FAQs

7 frequently asked questions generated from this part’s specifications.

What is the impedance of the 74279243 ferrite bead at 100 MHz?

75 Ω ±25%.

What is the maximum rated current of the 74279243?

2500 mA (ΔT=20K) or 3000 mA (ΔT=40K) maximum.

What is the package size of this ferrite bead?

1806 (4516 Metric), dimensions 4.50mm x 1.60mm, height 1.80mm max.

What is the operating temperature range?

-55°C to 125°C.

Is the 74279243 RoHS compliant?

Yes, compliant with 2011/65/EU and 2015/863.

Is the part AEC-Q200 qualified?

Yes, Grade 1.

What is the DC resistance of the 74279243?

0.025 Ω maximum at 20°C.

Category	Ferrite Beads and Chips
Manufacturer Name	Würth Elektronik
AEC-Q200	Grade 1
Current Rating (Max)	3A
DC Resistance (DCR) (Max)	0.025 Ω max.
Filter Type	Signal Line
Halogen Free	Conform
Height (Max)	1.80mm (0.071")
Length	4.50mm (0.177")
Mounting Type	Surface Mount
Number of Lines	1
Operating Temperature	-55°C ~ 125°C
Rated Current (Maximum @ ΔT = 20 K)	2500 mA max.
Rated Current (Maximum @ ΔT = 40 K)	3000 mA max.
Tape & Reel	Yes
Width	1.60mm (0.063")
impedance (Nominal @ 100 MHz)	75 Ω ±25%
impedance (Typical @ 1000 MHz)	160 Ω typ.

74279243

74279243 Available from 1 distributor

74279243 Specifications Quick View

74279243 Description

74279243 Quick Information

74279243 Compliance

74279243 Estimated Pricing

74279243 Features

74279243 Applications

74279243 FAQs

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