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Product Detailed Parameters
- Description：CMC 3.4MH 400MA 2LN TH
- Series：UF
- Mfr：TDK Corporation
- Package：Bulk
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：400mA
- DC Resistance (DCR) (Max)：1.3Ohm
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-20°C ~ 120°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.689" L x 0.433" W (17.50mm x 11.00mm)
- Height (Max)：0.669" (17.00mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：3.4 mH @ 1 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The UF1717V-342Y0R4-01 is a vertical through-hole common mode choke manufactured by TDK Corporation. It features a nominal inductance of 3.4 mH and a rated current capacity of 400 mA. The component is designed for electromagnetic interference (EMI) suppression in electronic circuits. It utilizes a two-line configuration to effectively attenuate common mode noise signals while maintaining signal integrity for differential modes.
Feature Summary
- Vertical leaded construction for standard printed circuit board mounting
- High impedance characteristics at applicable frequencies for effective noise attenuation
- Two-line design optimized for common mode interference suppression
Applications
- Electromagnetic interference filtering in consumer electronics
- Signal line protection in industrial control systems
- Noise suppression in power supply input stages
Procurement Notes
Verify the complete part number including suffixes against official TDK documentation to ensure correct pinout, inductance tolerance, and current rating specifications. Confirm that the vertical package orientation matches the target PCB layout requirements before finalizing procurement orders.
Selection Notes
Select this component when a 3.4 mH inductance value is required for common mode noise reduction with a 400 mA current handling capability. Ensure the vertical form factor fits the available board space and that the operating frequency range aligns with the targeted interference spectrum.
Part Context
This component belongs to the UF1717V series of common mode chokes produced by TDK Corporation. The series offers various inductance values and current ratings tailored for EMI suppression applications. The specific model indicates a 3.4 mH nominal inductance with a 400 mA rated current capacity.
Replacement Considerations
Cross-reference with other TDK UF1717V series variants or equivalent industry-standard common mode chokes having matching 3.4 mH inductance and 400 mA current ratings. Verify physical dimensions and terminal configurations to ensure mechanical compatibility during replacement.
