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Product Detailed Parameters
- Description：CMC 2.8MH 25A 2LN TH
- Series：RD
- Mfr：Schaffner EMC Inc.
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：25A (Typ)
- DC Resistance (DCR) (Max)：6.4mOhm (Typ)
- Voltage Rating - DC：850V
- Voltage Rating - AC：600V
- Operating Temperature：-25°C ~ 110°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：2.756" L x 2.756" W (70.00mm x 70.00mm)
- Height (Max)：1.594" (40.50mm)
- Package / Case：Horizontal, 4 PC Pin
- Inductance @ Frequency：2.8 mH @ 400 Hz
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Overview
The Schaffner RD7127-25-2M8 is a current-compensated common mode choke designed for power line filtering. It features a nanocrystalline core and through-hole PCB mounting. Key electrical parameters include an inductance of 2.8 mH at 400 Hz, a maximum DC current rating of 25 A, and a typical DC resistance of 6.4 mOhms. The component operates within a temperature range of -25°C to +110°C and supports voltages up to 600 VAC.
Feature Summary
- Utilizes nanocrystalline core material for high magnetic permeability and effective noise suppression.
- Current-compensated design optimizes performance for single-phase applications with neutral connections.
- Through-hole construction ensures robust mechanical stability on printed circuit boards.
Applications
- Medical imaging equipment such as CAT scanners and X-ray systems
- Laboratory diagnostic devices including defibrillators
- Phase-angle control circuits in industrial automation
Procurement Notes
Verify the specific suffix '2M8' corresponds to the required 2.8 mH inductance value. Confirm that the 25 A current rating aligns with the system's peak load requirements. Ensure the through-hole footprint matches the target PCB layout dimensions before finalizing procurement orders.
Selection Notes
Select this component when high current handling capacity is required alongside significant common mode noise attenuation. The nanocrystalline core offers superior performance compared to standard ferrite cores at lower frequencies. Ensure the operating environment remains within the specified -25°C to +110°C thermal limits for reliable long-term operation.
Part Context
This part belongs to the RD series of EMC/EMI components manufactured by TE Connectivity / Schaffner. These chokes are engineered specifically for demanding environments where electromagnetic interference must be strictly controlled. The series provides solutions for both AC and DC power line filtering across various industrial sectors.
Replacement Considerations
Direct substitutes may include other Schaffner RD series parts with similar inductance and current ratings. Verify pin compatibility and physical dimensions when considering alternative manufacturers. Cross-reference datasheets to ensure equivalent thermal and electrical performance characteristics.
FAQ
What is the core material used in the RD7127-25-2M8?
The component utilizes a nanocrystalline core material, which provides high magnetic permeability and efficient noise suppression capabilities.
Is this component suitable for three-phase applications?
No, the RD7127-25-2M8 is a two-line (single-phase) common mode choke designed for applications with or without a neutral connection.
