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Product Detailed Parameters
- Description：CMC 18MH 1A 2LN TH
- Series：RN
- Mfr：Schaffner EMC Inc.
- Package：Tube
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：1A
- DC Resistance (DCR) (Max)：630mOhm (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：0.886" L x 0.846" W (22.50mm x 21.50mm)
- Height (Max)：0.531" (13.50mm)
- Package / Case：Horizontal, 4 PC Pin
- Inductance @ Frequency：18 mH @ 10 kHz
- Qualification：-
- Grade：-
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Overview
The RN122-1-02-18M is a common mode choke from the Schaffner RN series, designed for PCB mounting via through-hole termination. It features a current compensated configuration with an inductance of 18 mH and a maximum DC current rating of 1 A. The component exhibits a maximum DC resistance of 630 mOhms and operates within a temperature range of -40°C to +100°C. Its physical dimensions are 27 mm x 28 mm x 16.5 mm, utilizing ferrite core material.
Feature Summary
- Provides common mode noise suppression through current compensated choke technology
- Utilizes ferrite core material for effective electromagnetic interference filtering
- Designed for horizontal mounting on printed circuit boards
Applications
- AC power line filtering for phase or neutral connections
- Electromagnetic compatibility (EMC) mitigation in electronic equipment
- RFI suppression in industrial control systems
Procurement Notes
Verify the manufacturer part number RN122-1-02-18M against official TE Connectivity / Schaffner documentation to ensure authenticity. Confirm that the specific ordering suffix matches the required electrical parameters, including 18 mH inductance and 1 A current rating. Check RoHS compliance status directly from the datasheet. Ensure the procurement channel provides valid traceability for this electronic component.
Selection Notes
Select this component when a 18 mH inductance value is required for common mode noise reduction in AC power applications. The 1 A current rating suits low-power circuits where space constraints favor a 27 mm x 28 mm footprint. Consider the through-hole mounting style and horizontal orientation for board layout integration. Verify that the 630 mOhm DC resistance aligns with system efficiency requirements.
Part Context
This component belongs to the RN series of EMC/RFI chokes manufactured by Schaffner EMC Inc., now part of TE Connectivity. The series utilizes toroidal ferrite cores with wound windings to achieve current compensation. These chokes are engineered for series connection with AC power lines to attenuate common mode and asymmetric noise currents effectively.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source data. Consult official manufacturer cross-reference lists for verified alternatives.
