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Product Detailed Parameters
- Description：CMC 150MA 2LN TH
- Series：ST-110
- Mfr：KEMET
- Package：Tray
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：150mA
- DC Resistance (DCR) (Max)：7.5Ohm
- 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：-
- Qualification：-
- Grade：-
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Overview
The KEMET ST-110BH is a through-hole common mode choke designed for signal lines and telephone sets. It utilizes proprietary manganese-zinc (Mn-Zn) ferrite material to provide effective noise suppression in the AM broadcast band, covering a frequency range of 0.5 to 7 MHz. The component features a resonant impedance of 150 kOhms and a DC resistance of 7.5 Ohms per line. Rated for a continuous current of 150 mA, it withstands 500 VDC between lines for one minute and maintains an insulation resistance exceeding 10 MΩ at 250 VDC.
Feature Summary
- Constructed with proprietary manganese-zinc ferrite material for stable performance
- Optimized for noise suppression in the AM broadcast frequency band
- Provides high insulation resistance and withstand voltage for signal integrity
Applications
- Common mode filtering for telephone sets
- Signal line noise suppression
- AM band interference mitigation
Procurement Notes
Verify the specific package style and lead time requirements before ordering, as availability may vary by distributor. Confirm that the 150 mA current rating and 7.5 Ohm DC resistance meet the circuit design specifications. Ensure the through-hole mounting dimensions align with the PCB layout constraints. Check for RoHS compliance status if required by local regulations.
Selection Notes
Select this component when filtering low-frequency common mode noise in analog signal paths such as telephony or audio lines. The 150 mA rating suits low-power signal applications rather than power delivery. Consider the 7.5 Ohm series resistance impact on signal attenuation. The through-hole format is suitable for prototyping or robust industrial enclosures where surface mount space is not a constraint.
Part Context
The ST-110 series comprises through-hole common mode chokes intended for signal line protection. These components are engineered to attenuate electromagnetic interference without significantly distorting the desired signal. The BH suffix typically denotes specific winding or core variations within the standard ST-110 family, tailored for particular impedance characteristics in the AM band.
Replacement Considerations
Cross-reference with other KEMET ST-110 variants or equivalent Mn-Zn ferrite chokes from manufacturers like TDK or Murata. Ensure substitute parts match the 150 mA current rating, 7.5 Ohm DCR, and 150 kOhm resonant impedance. Verify physical footprint compatibility for through-hole mounting.
