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Product Detailed Parameters
- Description：CMC 200MA 2LN 2.2 KOHM SMD
- Series：SCM20
- Mfr：Allied Components International
- Package：Tape & Reel (TR)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：200mA
- DC Resistance (DCR) (Max)：1.2Ohm
- 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 0.063" W (3.20mm x 1.60mm)
- Height (Max)：0.083" (2.10mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：-
- Impedance @ Frequency：2.2 kOhms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The SCM20-222T-RC is a surface mount common mode choke manufactured by Allied Components International. It features a two-line configuration designed for signal line filtering. The component has a current rating of 200 mA and an impedance of 2200 Ohms at the specified frequency. It operates within a temperature range of -40°C to +105°C and withstands a voltage of 125V.
Feature Summary
- Surface mount construction for automated assembly
- Two-line design for differential signal noise suppression
- High impedance characteristics for EMI/RFI filtering
Applications
- USB 2.0 interface protection
- Signal line EMI/RFI noise filtering
- Data bus common mode noise suppression
Procurement Notes
Verify the specific impedance value and tolerance against the official datasheet, as suffixes may indicate variations. Confirm the package dimensions and pinout compatibility with your PCB footprint. Ensure the operating temperature range meets your environmental requirements. Cross-reference the manufacturer part number to avoid confusion with similar series components.
Selection Notes
Select this component when high impedance at specific frequencies is required for signal integrity. Consider the 200 mA current rating to ensure it does not saturate under normal operating conditions. Evaluate the surface mount form factor for space-constrained designs. Compare impedance curves with alternative chokes to match the target noise spectrum effectively.
Part Context
This component belongs to the SCM20 series of surface mount common mode chokes from Allied Components International. The series includes variants with different impedance values tailored for various data lines. These components are engineered to meet industry standards for electromagnetic interference reduction in compact electronic assemblies.
Replacement Considerations
Public confirmed substitute part numbers were not identified in the provided documentation. Verify compatibility with direct replacements by matching impedance, current rating, and physical dimensions.
