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Product Detailed Parameters
- Description：CMC 500MA 2LN 90 OHM SMD
- Series：BWCU_02
- Mfr：Pulse Electronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：-
- Number of Lines：2
- Current Rating (Max)：500mA
- 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：0.081" L x 0.049" W (2.05mm x 1.25mm)
- Height (Max)：0.055" (1.40mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：-
- Impedance @ Frequency：90 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The BWCU00201212900Y03 is a surface-mount common mode choke from the Pulse Electronics BWCU series. It features a 90 Ohm impedance at 100 MHz with a 25% tolerance. The component supports a maximum DC current of 500 mA and has a maximum DC resistance of 300 mOhms. It operates within a temperature range of -40°C to +105°C. The physical dimensions are 2.05 mm in length, 1.25 mm in width, and 1.2 mm in height, housed in an unshielded SMD package.
Feature Summary
- Provides common mode noise suppression for high-speed data lines
- Designed for compact PCB mounting with small footprint
- Operates reliably across extended industrial temperature ranges
Applications
- USB 2.0 interface protection
- IEEE 1394b (FireWire) signal filtering
- LVDS (Low-Voltage Differential Signaling) circuits
Procurement Notes
Verify the specific impedance tolerance and DC resistance values against the official datasheet before integration. Confirm that the 2012 metric package dimensions align with the target PCB land pattern. Ensure the 500 mA current rating meets the operational requirements of the protected circuit to prevent saturation or excessive heating during normal use.
Selection Notes
Select this component when designing for USB 2.0, IEEE 1394b, or LVDS applications requiring 90 Ohm common mode impedance. The 2012 case size suits space-constrained layouts. Verify that the 500 mA current handling capability is sufficient for the specific line currents. Consider the unshielded construction if magnetic coupling with nearby components is not a primary concern.
Part Context
This part belongs to the BWCU series of surface-mount common mode chokes manufactured by Pulse Electronics. These components are engineered for signal integrity in digital communication interfaces. The series offers various impedance and current ratings to match different bus standards and power constraints in consumer and industrial electronics.
Replacement Considerations
Cross-reference with other 2012 package common mode chokes offering 90 Ohm impedance and similar current ratings. Verify pinout compatibility and thermal characteristics before substitution.
