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Product Detailed Parameters
- Description：SUPPRESSIONCHOKECOMM
- Series：SNCMC
- Mfr：Signal Transformer
- Package：Bulk
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：18A
- DC Resistance (DCR) (Max)：-
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-25°C ~ 130°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：1.299" L x 0.984" W (33.00mm x 25.00mm)
- Height (Max)：1.299" (33.00mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：2.5 mH @ 100 kHz
- Impedance @ Frequency：3.53 kOhms @ 100 kHz
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Overview
The SNCMC-127-016 is a nanocrystalline common mode choke from the Bel Signal Transformer SNCMC series. It features vertical through-hole mounting and operates within a temperature range of -25°C to +130°C. Key electrical parameters include an inductance of 2.5 mH, impedance of 3.53 kOhms at 100 kHz, and a maximum DC current rating of 18 A. The component has a maximum DC resistance of 6 mOhms and is unshielded.
Feature Summary
- Utilizes nanocrystalline core material for effective common mode noise suppression
- Designed for vertical through-hole PCB mounting
- Provides high impedance characteristics for EMI filtering applications
Applications
- Electromagnetic interference (EMI) suppression in power circuits
- Common mode noise filtering in AC/DC converters
- Signal integrity protection in industrial power supplies
Procurement Notes
Verify the specific manufacturer part number against official Bel Signal Transformer documentation to confirm exact electrical ratings and physical dimensions. Ensure compatibility with your system's thermal management requirements given the operating temperature limits. Cross-reference datasheet specifications for lead form and spacing to validate PCB layout constraints before finalizing procurement.
Selection Notes
Select this component when nanocrystalline technology offers superior performance over traditional ferrite cores for specific frequency ranges. Consider the 18 A current rating and low DC resistance for efficiency in high-current paths. Verify that the unshielded design does not interfere with nearby sensitive components or require additional mechanical clearance on the assembly board.
Part Context
This component belongs to the SNCMC series of common mode chokes manufactured by Bel Signal Transformer. The series utilizes nanocrystalline materials to achieve high permeability and saturation characteristics. These filters are engineered for robust performance in demanding power electronics environments requiring reliable noise attenuation.
FAQ
What is the test frequency for the impedance specification?
The impedance of 3.53 kOhms is specified at a test frequency of 100 kHz.
Is the SNCMC-127-016 shielded?
No, the SNCMC-127-016 is an unshielded common mode choke.
