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Product Detailed Parameters
- Description：CMC 1MH 2.4A 2LN TH
- Series：7400
- Mfr：Bourns Inc.
- Package：Bulk
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：2.4A
- DC Resistance (DCR) (Max)：49mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-55°C ~ 105°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.748" L x 0.669" W (19.00mm x 17.00mm)
- Height (Max)：0.827" (21.00mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：1 mH @ 1 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Bourns 7404-RC is a through-hole common mode choke designed for EMI suppression. It features an inductance of 1 mH at 1 kHz and supports a current rating of 2.4 A with a DC resistance of 49 mOhm. The component operates within a temperature range of -55°C to 105°C and withstands a rated voltage of 250 VAC. It utilizes a vertical, 4-pin PC pin package and offers high attenuation at low frequencies.
Feature Summary
- Reduces conducted electromagnetic interference emissions
- Provides high inductance within a compact physical size
- Delivers high signal attenuation specifically at low frequencies
Applications
- Power supply input filtering
- Data line noise suppression
- General EMI filter circuits
Procurement Notes
Verify the specific suffix RC against the manufacturer's official datasheet to confirm the exact packaging configuration and compliance status. Ensure the selected variant matches the required through-hole mounting style and pin spacing for your PCB layout. Cross-reference the electrical parameters with your system requirements before finalizing the order.
Selection Notes
Select this component when designing circuits requiring robust low-frequency noise rejection for two-line applications. The 2.4 A current rating suits moderate power levels, while the 250 VAC rating ensures safety isolation. Consider the vertical package profile for board space constraints and verify thermal performance within the specified -55°C to 105°C operating range.
Part Context
This part belongs to Bourns' common mode inductor series, engineered for effective electromagnetic interference mitigation. These components are integral to maintaining signal integrity in electronic systems by suppressing unwanted common mode currents. The design prioritizes high attenuation capabilities alongside reliable performance across varying environmental conditions.
Replacement Considerations
Consult official substitution guides for compatible alternatives. Verify that any replacement maintains identical inductance, current ratings, and physical dimensions to ensure seamless integration without redesigning the host circuit board or assembly process.
FAQ
What is the DC resistance of the 7404-RC?
The DC resistance is 49 mOhm.
What is the maximum operating temperature?
The maximum operating temperature is 105°C.
