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Product Detailed Parameters
- Description：FERRITE BEAD 68 OHM 0402 1LN
- Series：Z-SMS
- Mfr：KEMET
- Package：Tape & Reel (TR),Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：1
- Impedance @ Frequency：68 Ohms @ 100 MHz
- Current Rating (Max)：400mA
- DC Resistance (DCR) (Max)：310mOhm
- Ratings：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：0402 (1005 Metric)
- Mounting Type：Surface Mount
- Height (Max)：0.022" (0.55mm)
- Size / Dimension：0.039" L x 0.020" W (1.00mm x 0.50mm)
- Features：-
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Overview
The KEMET Z0402C680CSMST is a ferrite chip bead from the Z-SMS series, designed for noise suppression in single-channel signal lines. It features a 0402 (1005 metric) surface-mount package with dimensions of 1.0 mm length, 0.5 mm width, and 0.55 mm height. The component provides an impedance of 68 Ohms at 100 MHz and supports a maximum DC current of 400 mA. Its maximum DC resistance is 310 mOhms with a 25% tolerance. It operates within a temperature range of -55°C to +125°C and complies with RoHS3 standards.
Feature Summary
- Provides effective high-frequency noise attenuation for sensitive signal lines through ferrite material properties.
- Utilizes a compact 0402 surface-mount footprint to facilitate dense circuit board layouts.
- Engineered for stable performance across a wide industrial temperature range without thermal degradation.
Applications
- High-speed digital signal line filtering
- Clock circuit noise suppression
- USB interface data line protection
Procurement Notes
Verify end-of-life status before design finalization as this part is obsolete. Confirm that replacement components meet identical electrical specifications including impedance curves and current ratings. Ensure supply chain stability for alternative sources if production continuity is required.
Selection Notes
Select this component when space constraints require a 0402 package and specific 68 Ohm impedance is needed at 100 MHz. Evaluate thermal management requirements against the 400 mA current rating. Consider the operating temperature range limits for harsh environment deployments.
Part Context
This ferrite bead belongs to the Z-SMS series, which focuses on miniaturized noise suppression solutions. The series targets applications requiring small form factors while maintaining reliable electromagnetic interference reduction capabilities for modern electronic devices.
Replacement Considerations
TDK MMZ1005D680CTD25 is a confirmed substitute offering similar electrical characteristics and package dimensions.
FAQ
What is the impedance value at the standard test frequency?
The impedance is 68 Ohms measured at 100 MHz.
Is this component suitable for automotive applications?
The datasheet specifies a commercial grade classification with a -55°C to +125°C operating range, not explicitly automotive qualified.
