ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：CMC 45MH 400MA 2LN TH
- Series：7400
- Mfr：Bourns Inc.
- Package：Bulk
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：400mA
- DC Resistance (DCR) (Max)：2.68Ohm
- 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：45 mH @ 1 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
Download product information
Overview
The Bourns 7418-RC is a through-hole common mode choke designed for EMI suppression. It features a 45 mH inductance and supports a maximum current of 400 mA with a DC resistance of 2.68 Ohms. The component operates within a temperature range of -55°C to 105°C and withstands an AC voltage rating of 250 V. Its compact vertical package utilizes four PC pins for mounting, providing high attenuation at low frequencies while maintaining a dielectric strength of 3750 V.
Feature Summary
- Reduces conducted electromagnetic interference emissions
- Provides high inductance in a compact physical size
- Delivers high signal attenuation at low frequencies
Applications
- Power supply input filtering
- Data line noise suppression
- Telecommunications equipment protection
Procurement Notes
Verify the specific suffix designation against official manufacturer documentation to confirm exact electrical tolerances and material composition. Ensure the selected variant matches the required through-hole pin configuration and thermal ratings for the intended circuit environment before finalizing procurement orders.
Selection Notes
Select this component when circuit design requires significant low-frequency noise reduction for differential signals. Evaluate the 400 mA current limit and 2.68 Ohm DC resistance to ensure compatibility with power budget constraints. Confirm that the 250 VAC rating meets insulation requirements for the target application voltage levels.
Part Context
This component belongs to the Bourns common mode inductor family, engineered for robust EMI filtering in electronic systems. It serves as a critical passive element for maintaining signal integrity by suppressing unwanted common mode currents. The product line emphasizes reliability across diverse industrial and consumer environments.
Replacement Considerations
Consult official substitution guides for compatible common mode chokes with matching 45 mH inductance and 400 mA current ratings. Verify pinout compatibility for through-hole mounting before implementing alternative components.
FAQ
What is the maximum operating temperature for the 7418-RC?
The component is rated for operation up to 105°C.
Does the 7418-RC support surface mount installation?
No, it is designed for through-hole mounting using a vertical 4-pin configuration.
