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Product Detailed Parameters
- Description：CMC 189NH 500MA 2LN 1.06KOHM SMD
- Series：0805USB
- Mfr：Coilcraft
- Package：Strip
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：500mA
- DC Resistance (DCR) (Max)：320mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 85°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.080" L x 0.050" W (2.03mm x 1.27mm)
- Height (Max)：0.065" (1.65mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：189 nH @ 100 MHz
- Impedance @ Frequency：1.06 kOhms @ 1.4 GHz
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Overview
The Coilcraft 0805USB-372MLC is a surface-mount common mode choke designed for high-speed signal lines. It features an inductance of 189 nH and a maximum DC resistance of 0.32 Ohms. The component supports a maximum DC current of 500 mA and provides an impedance of 1.06 kOhms. It operates within a temperature range of -40°C to +85°C and utilizes a ferrite core.
Feature Summary
- Dual-wound construction optimized for high-speed signal integrity
- Low profile design suitable for space-constrained PCB layouts
- Ferrite core material for effective electromagnetic interference suppression
Applications
- High-speed USB data line protection
- Signal filtering in compact electronic devices
- Common mode noise suppression on differential pairs
Procurement Notes
Verify the specific suffix (MLC) against official Coilcraft documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status directly with the manufacturer or authorized distributors, as packaging variations may exist. Ensure the selected variant matches the required impedance and current ratings for the target application circuit.
Selection Notes
Select this component when board space is limited and low DC resistance is critical for high-speed signal transmission. The 0805 footprint offers a balance between performance and size. Verify that the 500 mA current rating meets the operational requirements of the protected circuit without saturation.
Part Context
This part belongs to the 0805USB series from Coilcraft, which focuses on common mode chokes for high-speed signals. The series is characterized by dual-wound filters with very low DC resistance, making them ideal for designs where board space is at a premium while maintaining signal integrity.
Replacement Considerations
Check for other variants within the 0805USB series with different inductance values if electrical parameters do not match. Consult Coilcraft's official substitution guide for equivalent components with compatible impedance and current ratings.
