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Product Detailed Parameters
- Description：CMC 370MA 2LN 90OHM SMD AEC-Q200
- Series：WE-CNSA
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：370mA
- DC Resistance (DCR) (Max)：300mOhm
- 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：90 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 784231091 is a surface-mount common mode filter choke from the WE-CNSA series, designed for high-frequency noise suppression. It features an inductance of 131 nH and a maximum DC current rating of 370 mA. The component exhibits a DC resistance of 0.3 Ω and operates within a temperature range of -40°C to +125°C. It is qualified under AEC-Q200 standards and housed in a compact 2 mm x 1.2 mm x 1.2 mm package.
Feature Summary
- AEC-Q200 automotive qualification ensures reliability for demanding environments
- Compact SMD footprint facilitates dense circuit board layouts
- High-frequency common mode noise attenuation capability
Applications
- Automotive electronics systems requiring EMI suppression
- High-speed data line protection
- General-purpose power supply filtering
Procurement Notes
Verify the specific manufacturer part number against official Wurth Elektronik documentation to ensure authenticity. Confirm that the AEC-Q200 qualification status aligns with your project's regulatory requirements. Check for any updated datasheet revisions that may affect mechanical or electrical specifications before finalizing procurement orders.
Selection Notes
Select this component when low inductance and high current handling are not the primary constraints, but rather high-frequency noise reduction is critical. Ensure the PCB land pattern matches the 2 mm x 1.2 mm dimensions. Consider the 370 mA current limit during thermal design to prevent saturation or overheating in the target application environment.
Part Context
This component belongs to the WE-CNSA series of surface-mount common mode chokes. These filters are engineered for applications requiring effective electromagnetic interference suppression in small form factors. The series supports various inductance values tailored for different frequency ranges and current requirements.
Replacement Considerations
Consult official Wurth Elektronik cross-reference guides for verified substitutes. Ensure any replacement maintains identical impedance characteristics at target frequencies and meets the same AEC-Q200 qualification if required for automotive use.
FAQ
What is the operating temperature range for the 784231091?
The component operates reliably between -40°C and +125°C.
Is this component suitable for automotive applications?
Yes, it is qualified according to the AEC-Q200 standard for passive components.
