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Product Detailed Parameters
- Description：CMC 600MA 2LN 1 KOHM SMD
- Series：BWCU_02
- Mfr：Pulse Electronics
- Package：Tape & Reel (TR)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：600mA
- 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：0.126" L x 0.098" W (3.20mm x 2.50mm)
- Height (Max)：0.079" (2.00mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：-
- Impedance @ Frequency：1 kOhms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The BWCU00322518102M00 is a surface-mount common mode choke manufactured by Pulse Electronics. It features an impedance of 90 Ohms with a 20% tolerance, tested at 100 MHz. The component supports a maximum DC current of 600 mA and has a maximum DC resistance of 250 mOhms. Its physical dimensions are 3.2 mm in length, 2.5 mm in width, and 1.8 mm in height. The device operates within a temperature range of -40°C to +105°C and utilizes an unshielded design suitable for USB applications.
Feature Summary
- Provides common mode noise suppression for high-speed data lines
- Designed specifically for USB interface signal integrity protection
- Utilizes an unshielded ferrite core construction
Applications
- USB 2.0 data line filtering
- IEEE 1394b (FireWire) signal protection
- LVDS (Low-Voltage Differential Signaling) circuit filtering
Procurement Notes
Verify the specific impedance value against official datasheets, as distributor listings may contain conflicting specifications such as 1 kOhms versus the documented 90 Ohms. Confirm the package dimensions and terminal type match the PCB footprint requirements. Ensure the operating temperature range meets the environmental constraints of the final assembly. Cross-reference the manufacturer part number to avoid confusion with similar series components.
Selection Notes
Select this component when designing circuits requiring common mode rejection for differential signaling interfaces like USB or FireWire. The low DC resistance helps minimize voltage drop across the data lines. The compact SMD form factor allows for integration into space-constrained portable devices. Ensure the rated current exceeds the peak operational current of the connected peripherals to prevent saturation.
Part Context
This component belongs to the BWCU series of common mode chokes from Pulse Electronics. It is categorized under SMD Common Mode Chokes and falls within the broader Inductors, Chokes & Coils product family. The series is characterized by its suitability for high-frequency noise attenuation in digital communication ports.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult the manufacturer's official cross-reference tools or datasheet footnotes for verified alternatives before substitution.
