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Product Detailed Parameters
- Description：CMC 3MH 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)：192mOhm (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：3 mH @ 10 kHz
- Qualification：-
- Grade：-
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Overview
The Schaffner RN204-1-02-3M0 is a vertical through-hole common mode 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 3 mH with a tolerance of -30% to +50%. It supports a maximum DC current of 1 A and has a maximum DC resistance of 300 mOhms. The unit measures 14 mm x 9 mm x 14.3 mm, utilizes 0.5 mm lead wires, and carries UL 94V-0 flammability rating.
Feature Summary
- Vertical PCB mount configuration for space-efficient integration
- Current compensated design utilizing ferrite core material
- Unshielded construction suitable for standard EMC suppression tasks
Applications
- Power supply input filtering
- DC/DC converter noise suppression
- General electronic equipment EMI reduction
Procurement Notes
Verify the specific inductance value against the datasheet, as part number suffixes often indicate different values. Confirm that the 1 A current rating and 300 mOhm resistance meet the target circuit requirements. Ensure the vertical package dimensions fit the available PCB real estate. Check for RoHS compliance status if required by the end product specifications.
Selection Notes
Select this component when a compact, vertically oriented common mode choke is needed for low-current applications. The 3 mH inductance offers moderate attenuation for common mode noise. Consider the -30% to +50% tolerance if precise impedance matching is critical. The unshielded nature requires careful layout to minimize magnetic coupling with nearby sensitive traces.
Part Context
This component belongs to the Schaffner RN series of common mode chokes. The series typically includes various inductance values and current ratings tailored for different power levels. The RN204 form factor represents a specific footprint and height profile within this family, standardized for automated assembly processes.
Replacement Considerations
RN204-1-02-1M1 shares the same physical package but differs in inductance (1.1 mH vs 3 mH). Verify electrical compatibility before substitution. No other direct substitutes are confirmed in the provided documentation.
