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Product Detailed Parameters
- Description：CMC 31NH 1A 2LN 210 OHM SMD
- Series：1206USB
- Mfr：Coilcraft
- Package：Tape & Reel (TR)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：1A
- DC Resistance (DCR) (Max)：100mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 85°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.126" L x 0.063" W (3.20mm x 1.60mm)
- Height (Max)：0.076" (1.93mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：31 nH @ 100 MHz
- Impedance @ Frequency：210 Ohms @ 3 GHz
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Overview
The Coilcraft 1206USB-371MLC is a surface-mount common mode choke designed for USB 2.0 applications. It features an inductance of 31 nH and a DC resistance of 100 mOhm. The component supports a current rating of 1 A and offers high impedance of 210 Ohms. Housed in a compact 1206 package, it effectively suppresses common mode noise in high-speed differential signal transmission environments while maintaining signal integrity.
Feature Summary
- Eliminates common mode noise in high-speed differential signal transmission
- Optimized for USB 2.0 interface protection
- Compact surface-mount design for space-constrained PCBs
Applications
- USB 2.0 port filtering
- High-speed data line noise suppression
- Differential signal integrity enhancement
Procurement Notes
Verify the specific suffix 'MLC' to confirm halogen-free and RoHS compliance status as defined by the manufacturer. Confirm availability through authorized distributors, as supply levels may vary. Ensure the selected component matches the required 1206 footprint and electrical specifications for your circuit design before finalizing procurement.
Selection Notes
Select this component when designing USB 2.0 interfaces requiring effective common mode noise reduction. The low DC resistance minimizes power loss, while the specific inductance value targets frequencies relevant to USB signaling. Ensure the 1 A current rating exceeds the maximum expected load current to prevent saturation and maintain performance under operational conditions.
Part Context
This part belongs to the 1206USB series from Coilcraft, which specializes in common mode chokes for high-speed digital interfaces. The series provides solutions for EMI suppression in compact form factors suitable for modern electronic devices requiring reliable data transmission standards.
Replacement Considerations
Check for other parts within the 1206USB series with compatible inductance and current ratings. Verify that any substitute maintains the same 1206 package dimensions and electrical characteristics to ensure mechanical and functional compatibility without redesigning the PCB layout.
