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Product Detailed Parameters
- Description：CMC 47MH 300MA 2LN TH
- Series：RN
- Mfr：Schaffner EMC Inc.
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：300mA (Typ)
- DC Resistance (DCR) (Max)：1.75Ohm (Typ)
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：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：47 mH @ 10 kHz
- Qualification：-
- Grade：-
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Overview
The Schaffner RN114-0.3-02 is a current-compensated common mode choke from the RN series, designed for power line filtering applications. It features an inductance of 47 mH and supports a maximum DC current of 300 mA with a DC resistance of 1.75 Ohms. The component utilizes a horizontal package with four PC pins for through-hole mounting. Its physical dimensions are 22.50 mm in length, 21.50 mm in width, and a maximum height of 13.50 mm. The device operates within a temperature range of -40°C to +125°C and is tested at a frequency of 10 kHz.
Feature Summary
- Provides electromagnetic interference suppression through high-inductance common mode filtering on two-line power circuits.
- Utilizes a current-compensated design to maintain signal integrity while attenuating noise.
- Features a robust horizontal through-hole construction suitable for secure PCB integration.
Applications
- Power supply input filtering
- Electromagnetic compatibility (EMC) compliance in electronic devices
- Noise reduction in AC/DC conversion stages
Procurement Notes
Verify the specific part number against official Schaffner documentation to ensure accuracy, as suffixes may indicate variations in packaging or tolerance. Confirm that the 300 mA current rating and 47 mH inductance align with your circuit requirements. Check for RoHS compliance status if required by your manufacturing standards. Ensure the through-hole pin configuration matches your PCB layout specifications before finalizing procurement.
Selection Notes
Select this component when designing power lines requiring significant common mode noise attenuation at low currents. The 47 mH inductance offers strong filtering capabilities for sensitive electronics. Consider the 1.75 Ohm DC resistance impact on voltage drop. The wide operating temperature range ensures reliability in varied environmental conditions. Verify spatial constraints fit the 22.50 x 21.50 mm footprint.
Part Context
This component belongs to the Schaffner RN series of current-compensated chokes, widely used in EMC applications. These components are engineered to meet stringent international electromagnetic compatibility standards. The RN series is known for its compact size and high performance in suppressing radio frequency interference in power lines.
Replacement Considerations
Consult official Schaffner substitution guides for verified alternatives. Cross-reference inductance, current rating, and physical dimensions to ensure functional equivalence. Generic substitutes may not match the specific current-compensation characteristics of the RN series.
FAQ
What is the inductance value of the RN114-0.3-02?
The inductance value is 47 mH.
Does this component support through-hole mounting?
Yes, it uses a horizontal package with four PC pins for through-hole installation.
