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Product Detailed Parameters
- Description：CMC 400MA 2LN 25 OHM SMD
- Series：BWCU_02
- Mfr：Pulse Electronics
- Package：Tape & Reel (TR)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：400mA
- DC Resistance (DCR) (Max)：300mOhm
- 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：25 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The BWCU00121008250T02 is a surface mount common mode choke manufactured by Pulse Electronics. It provides an impedance of 25 Ohms at a test frequency of 100 MHz with a tolerance of 30%. The component supports a maximum DC current of 400 mA and features a maximum DC resistance of 300 mOhms. Its physical dimensions are 1.25 mm in length, 1 mm in width, and 0.8 mm in height. The device operates within a temperature range of -40°C to +105°C and utilizes an unshielded design for PCB mounting.
Feature Summary
- Designed for high-speed data line protection in USB 2.0, IEEE 1394b, and LVDS applications
- Compact surface mount footprint suitable for space-constrained circuit boards
- Unshielded construction optimized for specific electromagnetic interference requirements
Applications
- USB 2.0 interface circuits
- IEEE 1394b (FireWire) connections
- Low Voltage Differential Signaling (LVDS) lines
Procurement Notes
Verify the exact part number against official Pulse Electronics documentation to ensure compatibility with target designs. Confirm that the specified impedance and current ratings align with system requirements. Check for any specific handling or storage conditions outlined in the manufacturer's datasheet prior to implementation.
Selection Notes
Select this component when designing for USB 2.0, IEEE 1394b, or LVDS interfaces requiring common mode noise suppression. Ensure the 400 mA current rating meets the operational load. Consider the 25 Ohm impedance value at 100 MHz for effective signal integrity maintenance in high-speed digital environments.
Part Context
This component belongs to the BWCU series of compact common mode chokes from Pulse Electronics. These devices are engineered for surface mount technology, offering reliable filtering solutions for digital communication protocols. The series emphasizes small form factors to support modern miniaturized electronic assemblies.
Replacement Considerations
Consult official distributor databases for cross-reference part numbers. Verify electrical parameters such as impedance, current rating, and physical dimensions before substituting. Ensure any alternative component maintains compatibility with USB 2.0, IEEE 1394b, or LVDS standards.
