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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)：960mOhm (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" L x 0.354" W (14.00mm x 9.00mm)
- Height (Max)：0.575" (14.61mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：12 mH @ 10 kHz
- Qualification：-
- Grade：-
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Overview
The Schaffner RN204-0.3-02-12M is a vertical through-hole common mode filter choke designed for PCB mounting. It features an inductance of 12 mH with a tolerance of -30% to +50%. The component supports a maximum DC current of 0.3 A and has a maximum DC resistance of 1.2 ohms. It operates within a temperature range of -40°C to +100°C.
Feature Summary
- Provides effective suppression of common mode or asymmetric interference signals
- Features high saturation resistance and good thermal performance
- Utilizes a dual choke configuration for enhanced EMC filtering
Applications
- Power line EMI/RFI filtering
- Electromagnetic compatibility (EMC) circuits
- General electronic equipment noise suppression
Procurement Notes
Verify the specific part number against official TE Connectivity/Schaffner documentation to confirm electrical parameters and physical dimensions. Ensure the selected variant matches the required inductance and current ratings for the target application. Cross-reference datasheets for compliance certifications and environmental operating limits before procurement.
Selection Notes
Select this component when a compact, vertical-mount solution is required for low-current power lines. The 12 mH inductance offers significant attenuation for common mode noise. Verify that the 0.3 A current rating aligns with the circuit's operational requirements and that the through-hole package fits the PCB layout constraints.
Part Context
This component belongs to the RN series of current compensated chokes manufactured by Schaffner, now part of TE Connectivity. These components are engineered for efficient electromagnetic interference suppression in sensitive electronic systems, providing reliable performance in standard industrial and commercial environments.
Replacement Considerations
Consult official substitution guides for verified equivalents. Alternative parts must match the 12 mH inductance, 0.3 A current rating, and vertical through-hole form factor to ensure mechanical and electrical compatibility.
