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Product Detailed Parameters
- Description：CMC 190MH 300MA 2LN TH
- Series：SSR
- Mfr：KEMET
- Package：Bulk
- Filter Type：-
- Number of Lines：2
- Current Rating (Max)：300mA
- DC Resistance (DCR) (Max)：2.9Ohm
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-25°C ~ 120°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.906" L x 0.906" W (23.00mm x 23.00mm)
- Height (Max)：0.571" (14.50mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：190 mH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The KEMET SSR21NH-M031900 is a through-hole common mode filter choke designed for AC line filtering applications. It features an inductance of 190 mH and a maximum DC current rating of 300 mA. The component has a maximum DC resistance of 2.9 Ohms and operates within a temperature range of -25°C to +120°C. It utilizes a PCB mount installation style with dimensions of 23 mm width, 14.5 mm height, and 3.5 mm length.
Feature Summary
- Provides common mode noise suppression for AC line circuits
- Supports through-hole PCB mounting for secure mechanical attachment
- Rated for operation up to 120°C thermal environment
Applications
- AC line input filtering in electronic equipment
- Noise reduction in power supply stages
- EMI suppression in consumer electronics
Procurement Notes
Verify the specific suffix (NV vs NH) against the design schematic, as variants may differ in core material or performance characteristics despite similar part numbers. Confirm that the 300 mA current rating meets the circuit requirements under worst-case thermal conditions. Ensure the through-hole footprint matches the PCB layout constraints before finalizing procurement orders.
Selection Notes
Select this component when high inductance is required for low-frequency common mode noise attenuation at currents up to 300 mA. The 2.9 Ohm DC resistance should be evaluated for potential voltage drop impacts in the specific application circuit. Consider the physical dimensions of 23x14.5x3.5 mm for adequate clearance on the target printed circuit board.
Part Context
This component belongs to the KEMET SSR21NH-M series of AC line filters. These chokes are engineered for general-purpose electromagnetic interference suppression in single-phase AC applications. The series offers various inductance values tailored to different current ratings and noise profiles.
FAQ
What is the maximum operating temperature for the SSR21NH-M031900?
The maximum operating temperature is +120°C.
Is the SSR21NH-M031900 suitable for high-current applications?
No, it is rated for a maximum DC current of 300 mA, making it suitable for low-to-medium current AC line filtering rather than high-power loads.
