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Product Detailed Parameters
- Description：CMC 470UH 150MA 2LN 100 KOHM SMD
- Series：WE-SCC
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：150mA
- DC Resistance (DCR) (Max)：4.3Ohm
- Voltage Rating - DC：80V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.287" L x 0.287" W (7.30mm x 7.30mm)
- Height (Max)：0.189" (4.80mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：470 µH @ 100 kHz
- Impedance @ Frequency：100 kOhms @ 3 MHz
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744281471 is a WE-SCC series surface-mount common mode choke designed for signal line filtering. It features an inductance of 470 µH at 100 kHz and provides an impedance of 100 kOhms at 3 MHz. The component supports a maximum DC current of 150 mA with a maximum DC resistance of 4.3 Ohms. Rated for 80V DC, it operates within a temperature range of -40°C to +125°C. The device utilizes a horizontal 4-pin SMD package measuring 7.3 mm x 7.3 mm x 4.8 mm.
Feature Summary
- Provides effective attenuation of electromagnetic interference on differential signal lines through high common-mode impedance.
- Designed for compact PCB integration using a low-profile surface-mount footprint suitable for automated assembly.
Applications
- High-speed data interface protection
- Signal line EMI suppression
- USB and communication port filtering
Procurement Notes
Verify the specific ordering suffix against the manufacturer datasheet to ensure correct packaging configuration. Confirm that the selected variant matches the required impedance and current ratings for the target application circuit. Cross-reference the RoHS compliance status with current regulatory requirements before finalizing procurement orders.
Selection Notes
Select this component when designing circuits requiring significant common-mode noise rejection for low-current signal lines. Ensure the operating voltage does not exceed the 80V DC rating. Evaluate the thermal environment to confirm the +125°C maximum junction temperature capability aligns with the system's operational constraints and ambient conditions.
Part Context
This part belongs to the WE-SCC series of surface-mount common mode chokes from Würth Elektronik. The series offers various inductance values tailored for different frequency ranges. This specific model targets applications needing high impedance characteristics for effective noise suppression in sensitive digital communication interfaces.
Replacement Considerations
Consult official Wurth Elektronik documentation for verified substitute part numbers within the WE-SCC family or alternative manufacturers. Verify pin compatibility and electrical parameters before substitution.
FAQ
What is the maximum DC voltage rating for this component?
The maximum DC voltage rating is 80V.
At what frequency is the specified impedance measured?
The impedance of 100 kOhms is specified at 3 MHz.
