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Product Detailed Parameters
- Description：CMC 700MA 2LN 180 OHM SMD
- Series：BWCU_02
- Mfr：Pulse Electronics
- Package：Tape & Reel (TR)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：700mA
- 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：0.090" L x 0.060" W (2.29mm x 1.52mm)
- Height (Max)：0.047" (1.20mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：-
- Impedance @ Frequency：180 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The BWCU00231512181M02 is a surface-mount common mode choke manufactured by Pulse Electronics. It features an impedance of 180 Ohms at a test frequency of 100 MHz with a tolerance of 20%. The component supports a maximum DC current of 700 mA and has a maximum DC resistance of 400 mOhms. It operates within a temperature range of -40°C to +105°C. The physical dimensions are 2.3 mm in length, 1.5 mm in width, and 1.2 mm in height. It utilizes SMD/SMT termination and is supplied in reel packaging.
Feature Summary
- Provides common mode noise filtering for high-speed data lines
- Designed for compact PCB mounting with small footprint
- Unshielded construction suitable for general EMI suppression
Applications
- USB 2.0 interface protection
- IEEE 1394b (FireWire) signal integrity
- LVDS (Low-Voltage Differential Signaling) circuits
Procurement Notes
Verify the specific impedance value of 180 Ohms against design requirements, as this differs from similar part numbers like the BWCU00231512121M02 which has 120 Ohms. Confirm the 700 mA current rating is sufficient for the target application. Ensure the unshielded type meets EMC standards for the final product environment.
Selection Notes
Select this component when a higher impedance than standard 120 Ohm chokes is required for USB or LVDS applications. Compare the 700 mA current rating against system power constraints. Consider the 1.2 mm height profile for space-constrained designs. Verify compatibility with reflow soldering profiles specified for SMD components.
Part Context
This part belongs to the BWCU series of SMD common mode chokes from Pulse Electronics. It is functionally similar to the BWCU00231512121M02 but offers different impedance characteristics. The series is targeted at portable electronics and digital interfaces requiring compact EMI solutions.
Replacement Considerations
The BWCU00231512121M02 is a related variant with 120 Ohms impedance. Direct substitution requires verifying if the lower impedance meets noise suppression needs. No other public substitute part numbers are confirmed.
