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Product Detailed Parameters
- Description：FERRITE BEAD 28 OHM 0603 1LN
- Series：WE-CBF
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：1
- Impedance @ Frequency：28 Ohms @ 100 MHz
- Current Rating (Max)：4A
- DC Resistance (DCR) (Max)：30mOhm
- Ratings：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：0603 (1608 Metric)
- Mounting Type：Surface Mount
- Height (Max)：0.039" (1.00mm)
- Size / Dimension：0.063" L x 0.032" W (1.60mm x 0.80mm)
- Features：-
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Overview
The Würth Elektronik 742792603 is a surface-mount EMI suppression ferrite bead from the WE-CBF series, housed in a 0603 (1608 metric) package. It provides an impedance of 28 Ohms at 100 MHz with a maximum DC resistance of 30 mOhms and a rated current of 4 A. The component operates within a temperature range of -55°C to +125°C and meets AEC-Q200 automotive qualification standards.
Feature Summary
- Designed for direct surface mounting on printed circuit boards to suppress electromagnetic interference.
- Features low DC resistance to minimize signal loss while maintaining effective noise attenuation.
- Qualified for automotive applications according to AEC-Q200 reliability standards.
Applications
- EMI suppression in automotive electronic systems
- Signal line filtering in compact digital devices
- Noise reduction in high-density surface mount assemblies
Procurement Notes
Verify the specific impedance tolerance and DC resistance values against the official manufacturer datasheet prior to integration. Confirm that the 0603 package dimensions align with the target PCB footprint. Ensure the selected packaging format matches the assembly line requirements for automated placement processes.
Selection Notes
Select this component when space-constrained designs require effective high-frequency noise suppression without significant voltage drop. The 4 A current rating supports moderate power lines, while the 28 Ohm impedance targets specific noise frequencies around 100 MHz. Verify thermal performance under continuous load conditions within the specified operating temperature range.
Part Context
This part belongs to the WE-CBF series of SMD chip bead ferrites, engineered for compact EMI filtering solutions. The series offers various impedance and current ratings across multiple standard footprints, including 0402, 0603, and 0805 sizes, catering to diverse miniaturization needs in consumer and automotive electronics.
Replacement Considerations
Consult the official Wurth Elektronik cross-reference documentation for verified substitutes. Ensure any alternative maintains identical 0603 dimensions, 28 Ohm impedance at 100 MHz, and 4 A current handling capabilities to preserve circuit integrity.
