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Product Detailed Parameters
- Description：CMC 22MH 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)：520mOhm (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：0.709" L x 0.492" W (18.00mm x 12.50mm)
- Height (Max)：0.799" (20.30mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：22 mH @ 10 kHz
- Qualification：-
- Grade：-
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Overview
The Schaffner RN218-1-02-22M is a vertical through-hole common mode filter choke designed for printed circuit board mounting. It features a ferrite core and operates within a temperature range of -40°C to +100°C. The component provides an inductance of 22 mH with a tolerance of -30% to +50%. It supports a maximum DC current of 1 A and has a maximum DC resistance of 520 mOhms. The physical dimensions are 17.9 mm in length, 15.2 mm in width, and 19.8 mm in height.
Feature Summary
- Vertical through-hole construction for PCB integration
- Ferrite core design for effective noise suppression
- Current compensated choke topology
Applications
- Electromagnetic interference filtering in electronic circuits
- Power supply input stages requiring common mode noise reduction
- Signal integrity protection in sensitive electronic assemblies
Procurement Notes
Verify the specific datasheet version for the RN218-1-02-22M to confirm exact electrical tolerances and mechanical footprint details before finalizing procurement. Ensure that the selected component meets the required thermal operating limits and current ratings for the intended application environment. Cross-reference manufacturer documentation for any updates regarding RoHS compliance or material specifications.
Selection Notes
Select this component when a vertical mounting profile is required for space-constrained PCB layouts. The 22 mH inductance value is suitable for applications needing moderate common mode attenuation at lower frequencies. Consider the 1 A current rating and 520 mOhm resistance to ensure compatibility with the circuit's power budget and signal requirements without excessive voltage drop.
Part Context
This part belongs to the RN series of common mode chokes manufactured by TE Connectivity / Schaffner. The series includes various inductance and current ratings tailored for different EMC requirements. The RN218 variant specifically denotes a vertical package style, distinguishing it from horizontal counterparts like the RN122 series. These components are engineered for reliable performance in industrial and commercial electronic equipment.
Replacement Considerations
Direct substitutes may include other Schaffner RN218 series parts with similar inductance and current ratings, such as RN218-0.9-02-27M for higher current applications. Verify pinout compatibility and mechanical dimensions before substituting. Alternative manufacturers offering equivalent vertical common mode chokes should be evaluated based on strict parameter matching.
