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Product Detailed Parameters
- Description：CMC 300MA 2LN 260OHM SMD AECQ200
- Series：WE-CNSW
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：300mA
- DC Resistance (DCR) (Max)：400mOhm
- Voltage Rating - DC：50V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 125°C
- Ratings：AEC-Q200
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.079" L x 0.047" W (2.00mm x 1.20mm)
- Height (Max)：0.055" (1.40mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：-
- Impedance @ Frequency：260 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744231261 is a surface-mount common mode choke from the WE-CNSW series, designed for signal line noise suppression. It features an impedance of 260 Ohms at a test frequency of 100 MHz and supports a maximum DC current of 300 mA. The component has a DC resistance of 400 mOhms and an inductance of 39 µH. It operates within a temperature range of -40°C to +125°C and is housed in an 0805 package.
Feature Summary
- Provides effective common mode noise suppression for high-speed signal lines
- Complies with AEC-Q200 automotive qualification standards
- Utilizes a compact 0805 surface-mount footprint for space-constrained designs
Applications
- Automotive infotainment system data buses
- High-speed USB interface protection
- CAN bus signal line filtering
Procurement Notes
Verify the specific datasheet version to confirm exact impedance tolerances and thermal characteristics. Ensure the ordering suffix matches the required packaging format, such as cut tape or reel, for your assembly process. Cross-reference the AEC-Q200 certification status if the application mandates strict automotive reliability standards.
Selection Notes
Select this component when a low-profile 0805 solution is required for EMI suppression on differential pairs. The 260 Ohm impedance at 100 MHz targets higher frequency noise compared to lower impedance alternatives. Consider the 300 mA current rating to ensure the component does not saturate under normal operating conditions.
Part Context
This part belongs to the WE-CNSW series of common mode chokes manufactured by Würth Elektronik. These components are engineered specifically for suppressing electromagnetic interference in sensitive electronic circuits. The series offers various impedance values and current ratings to suit different signal integrity requirements across consumer and industrial electronics.
Replacement Considerations
Check for direct substitutes within the same WE-CNSW family that offer similar impedance and current ratings. Verify pin compatibility and physical dimensions before replacing with components from other manufacturers to ensure PCB layout compatibility.
