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Product Detailed Parameters
- Description：CMC 200MA 2LN 120 OHM SMD
- Series：BWCU_02
- Mfr：Pulse Electronics
- Package：Tape & Reel (TR)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：200mA
- DC Resistance (DCR) (Max)：400mOhm
- 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：120 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The BWCU00121008121M02 is a Surface Mount Device (SMD) common mode choke manufactured by Pulse Electronics under the Chilisin series. It features an unshielded design with a 120 Ohm impedance at 100 MHz and a 20% tolerance. The component supports a maximum DC current of 200 mA and has a maximum DC resistance of 400 mOhms. Its physical dimensions are 1.25 mm in length, 1 mm in width, and 0.8 mm in height. It operates within a temperature range of -40°C to +105°C.
Feature Summary
- Designed for high-speed data line filtering applications
- Compact horizontal surface mount package suitable for space-constrained PCBs
- Unshielded construction for standard signal integrity requirements
Applications
- USB 2.0 interface protection
- IEEE 1394b (FireWire) signal filtering
- LVDS (Low-Voltage Differential Signaling) circuits
Procurement Notes
Verify the specific manufacturer designation when sourcing, as the datasheet indicates this part is associated with Chilisin Common Mode Chokes distributed by Pulse Electronics. Confirm RoHS compliance status through official documentation prior to integration. Ensure the ordering suffix matches the required packaging format, such as Cut Tape or Reel, to align with assembly equipment specifications.
Selection Notes
Select this component for differential signal lines requiring common mode noise suppression where low profile is critical. The 200 mA current rating suits low-power digital interfaces. Verify that the unshielded nature meets EMI requirements for the specific enclosure. Compare impedance characteristics against target frequency bands to ensure effective attenuation of unwanted common mode signals without affecting differential data integrity.
Part Context
This component belongs to the BWCU series of SMD common mode chokes. It is categorized under Inductors, Chokes & Coils. The part serves as a passive filter element in electronic assemblies, specifically targeting electromagnetic interference reduction in high-speed serial communication ports. It utilizes a wirewound or similar magnetic core technology typical for this form factor.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Engineers should consult official distributor databases or manufacturer cross-reference tools to identify compatible alternatives with matching impedance, current ratings, and footprint dimensions.
