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Product Detailed Parameters
- Description：CMC 47UH 300MA 2LN 300 OHM SMD
- Series：WE-SL1
- 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)：160mOhm
- Voltage Rating - DC：80V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 105°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.256" L x 0.142" W (6.50mm x 3.60mm)
- Height (Max)：0.071" (1.80mm)
- Package / Case：Horizontal, 4 J-Lead
- Inductance @ Frequency：47 µH @ 100 kHz
- Impedance @ Frequency：300 Ohms @ 300 MHz
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744212470 is a surface-mount common mode line filter from the WE-SL1 series. It features an inductance of 47 µH per channel and provides an impedance of 300 Ω at 300 MHz. The component supports a maximum DC current of 300 mA with a maximum DC resistance of 160 mΩ. It operates within a temperature range of -40°C to +105°C and has physical dimensions of 6.5 mm length, 3.6 mm width, and 1.65 mm height.
Feature Summary
- Dual-channel design for effective common mode noise suppression
- Compact surface-mount footprint suitable for space-constrained PCBs
- High impedance performance at high frequencies
Applications
- DC power line filtering
- Signal line noise suppression
- EMI reduction in compact electronic devices
Procurement Notes
Verify the specific part number against official manufacturer documentation to ensure correct specifications. Confirm that the required impedance, current rating, and package dimensions align with the design requirements. Check for RoHS compliance status as indicated in the latest datasheet. Ensure compatibility with standard SMT assembly processes.
Selection Notes
Select this component when a dual-line filter with moderate inductance and high-frequency impedance is required. Consider the 300 mA current rating and 160 mΩ DCR for power loss calculations. Evaluate the 6.5 x 3.6 mm footprint against available board space. Compare with other WE-SL1 variants if different inductance or impedance values are needed.
Part Context
This component belongs to the WE-SL1 series of common mode chokes manufactured by Würth Elektronik. The series is designed for applications requiring efficient noise filtering in small form factors. These filters are commonly used in consumer electronics and industrial equipment where EMI compliance is critical.
Replacement Considerations
Consult the official Würth Elektronik datasheet for verified substitute part numbers within the WE-SL1 series or equivalent product lines. Ensure any replacement matches the electrical parameters and physical dimensions.
