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Product Detailed Parameters
- Description：CMC 12MH 300MA 2LN TH
- Series：RN
- Mfr：Schaffner EMC Inc.
- Package：Tube
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：300mA
- DC Resistance (DCR) (Max)：1.1Ohm (Typ)
- Voltage Rating - DC：-
- Voltage Rating - AC：300V
- Operating Temperature：-40°C ~ 100°C
- Ratings：-
- Approval Agency：ENEC, UR, VDE
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.551" Dia x 0.551" W (14.00mm x 14.00mm)
- Height (Max)：0.366" (9.30mm)
- Package / Case：Horizontal, 4 PC Pin
- Inductance @ Frequency：12 mH @ 10 kHz
- Qualification：-
- Grade：-
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Overview
The Schaffner RN102-0.3-02-12M is a horizontal through-hole common mode choke designed for EMI suppression in two-line circuits. It features an inductance of 12 mH at a test frequency of 10 kHz and supports a maximum DC current of 300 mA. The component has a typical DC resistance of 1.1 Ohms and utilizes ferrite core material. Its physical dimensions are 14.00 mm x 14.00 mm with a maximum height of 9.30 mm, suitable for PCB mounting applications.
Feature Summary
- Provides effective attenuation of common mode noise signals in dual-line configurations
- Utilizes ferrite core technology for stable inductive performance across operating temperatures
- Designed for vertical or horizontal surface mounting via through-hole termination
Applications
- Power supply input filtering
- Signal line interference suppression
- Electronic equipment EMC compliance
Procurement Notes
Verify the specific suffix codes against manufacturer documentation to ensure correct tolerance and packaging specifications. Confirm that the 300 mA current rating aligns with the application's peak load requirements. Check RoHS compliance status if restricted substances are mandated by the end product regulations. Ensure the through-hole footprint matches the target PCB design constraints.
Selection Notes
Select this component when a 12 mH inductance value is required for low-frequency noise reduction. The 300 mA current limit dictates suitability for lower power signal lines rather than high-current power feeds. Consider the horizontal package orientation for space-constrained board layouts. Verify thermal dissipation capabilities given the 1.1 Ohm DC resistance under continuous load conditions.
Part Context
This part belongs to the RN series of common mode chokes manufactured by TE Connectivity / Schaffner. The series offers various inductance and current combinations tailored for different electromagnetic compatibility needs. The RN102 variant specifically addresses compact form factor requirements while maintaining robust filtering characteristics for sensitive electronic interfaces.
Replacement Considerations
Direct substitutes include other RN series parts with matching 12 mH inductance and similar current ratings, such as variants from the same manufacturer family. Cross-referencing pinout and dimensional tolerances is essential when considering alternative brands.
