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Product Detailed Parameters
- Description：CMC 300MA 2LN 27 KOHM TH
- Series：ST-110
- Mfr：KEMET
- Package：Tray
- Filter Type：-
- Number of Lines：2
- Current Rating (Max)：300mA
- DC Resistance (DCR) (Max)：3Ohm
- Voltage Rating - DC：50V
- Voltage Rating - AC：-
- Operating Temperature：-20°C ~ 75°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.669" L x 0.610" W (17.00mm x 15.50mm)
- Height (Max)：0.472" (12.00mm)
- Package / Case：Horizontal, 8 PC Pin
- Inductance @ Frequency：-
- Impedance @ Frequency：27 kOhms @ 500 kHz
- Qualification：-
- Grade：-
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Overview
The KEMET ST-110AH is a two-line common mode choke designed for through-hole mounting. It features a toroidal core construction with a rated voltage of 50V and a maximum current capacity of 300mA. The component exhibits a direct current resistance (DCR) of 3 ohms and provides an impedance of 27 kOhms at a frequency of 500 kHz. This axial leaded device is engineered for horizontal mounting applications requiring effective noise suppression in low-voltage circuits.
Feature Summary
- Provides high common mode noise attenuation with 27 kOhm impedance at 500 kHz
- Utilizes a robust toroidal core design for stable performance
- Supports horizontal through-hole mounting for flexible PCB integration
Applications
- Low-voltage signal line filtering
- Common mode noise suppression in consumer electronics
- Data interface protection circuits
Procurement Notes
Verify the specific impedance tolerance and DC resistance values against the official KEMET datasheet prior to procurement. Confirm that the 50V rating and 300mA current limit align with the target circuit requirements. Ensure the through-hole package dimensions are compatible with the printed circuit board layout and mounting constraints.
Selection Notes
Select this component when a compact, low-inductance solution is required for differential or single-ended lines operating below 50V. The 300mA current rating suits low-power signal processing stages. Consider the 3-ohm DCR impact on signal integrity if the source impedance is low. Verify compatibility with automated insertion equipment due to the axial lead configuration.
Part Context
This part belongs to KEMET's range of passive magnetic components designed for electromagnetic interference suppression. Common mode chokes like the ST-110AH are essential for maintaining signal integrity by attenuating unwanted common mode currents while allowing differential signals to pass unaffected.
Replacement Considerations
Cross-reference with other KEMET toroidal common mode chokes offering similar 50V ratings and 300mA current capabilities. Verify that substitute parts match the 27 kOhm impedance specification at 500 kHz and maintain comparable physical dimensions for board fitment.
