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Product Detailed Parameters
- Description：CMC 300MA 2LN 67 OHM SMD
- Series：BWCU_02
- Mfr：Pulse Electronics
- Package：Tape & Reel (TR)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：300mA
- DC Resistance (DCR) (Max)：250mOhm
- Voltage Rating - DC：50V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 105°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.049" L x 0.039" W (1.25mm x 1.00mm)
- Height (Max)：0.035" (0.90mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：-
- Impedance @ Frequency：67 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The BWCU00121008670M02 is a two-line surface mount common mode choke manufactured by Pulse Electronics. It features an impedance of 67 Ohms at 100 MHz and supports a maximum DC current of 300 mA with a maximum DC resistance of 250 mOhms. The component has a tolerance of 20 percent and operates within a temperature range of -40 C to +105 C. Its physical dimensions are 1.25 mm in length, 1 mm in width, and 0.8 mm in height. The device is unshielded and utilizes SMD/SMT termination for PCB mounting.
Feature Summary
- Provides common mode noise suppression for differential signal lines
- Designed specifically for USB interface applications
- Compact horizontal surface mount footprint
Applications
- USB data line protection
- High-speed digital signal filtering
- Electromagnetic interference suppression in portable devices
Procurement Notes
Verify the specific impedance value of 67 Ohms at 100 MHz against design requirements. Confirm the maximum DC current rating of 300 mA meets circuit load needs. Check that the 250 mOhm DC resistance aligns with power loss constraints. Ensure the operating temperature range of -40 C to +105 C is suitable for the target environment. Validate the unshielded construction does not conflict with nearby sensitive components.
Selection Notes
Select this component when designing USB 2.0 or similar high-speed interfaces requiring moderate common mode attenuation. The 67 Ohm impedance offers a balance between noise suppression and signal integrity. Consider the 300 mA current rating for typical peripheral connections. The small 1210 package size fits space-constrained layouts. Verify compatibility with reflow soldering profiles for SMD assembly.
Part Context
This part belongs to the BWCU series of SMD common mode chokes from Pulse Electronics. It is categorized under Inductors, Chokes & Coils. The product is actively listed in distributor catalogs. It serves as a passive filter component for protecting communication ports from electromagnetic interference.
Replacement Considerations
The part number alias CUW11T-900M-N is documented for this component. Cross-reference electrical parameters such as impedance and current ratings before substituting with other manufacturers' parts.
