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Product Detailed Parameters
- Description：CMC 12A 2LN TH AEC-Q200
- Series：AML
- Mfr：TDK Corporation
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：12A
- DC Resistance (DCR) (Max)：7.7mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 125°C
- Ratings：AEC-Q200
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.303" Dia x 0.787" L (7.70mm x 20.00mm)
- Height (Max)：-
- Package / Case：Radial, Horizontal Cylinder
- Inductance @ Frequency：-
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The TDK AML0820-3R7M120-S1 is a through-hole common mode choke coil designed for automotive applications. It features an inductance of 3.7 µH with a tolerance of ±20%. The component supports a maximum rated current of 12.0 A and exhibits a typical DC resistance of 7.7 mΩ. It operates within a temperature range of -40°C to +125°C. The physical dimensions are 7.70 mm diameter by 20.00 mm length, housed in a radial horizontal cylinder package.
Feature Summary
- AEC-Q200 qualified for automotive reliability standards
- Low DC resistance for efficient power transmission
- High current handling capability up to 12.0 A
Applications
- Automotive power line filtering
- Noise suppression in vehicle electronic systems
- Common mode interference reduction in high-current circuits
Procurement Notes
Verify the specific ordering suffix matches the required tolerance and current rating. Confirm that the AML0820 package dimensions align with the target PCB layout constraints. Ensure the application environment stays within the specified -40°C to +125°C operating range. Check for any specific automotive qualification requirements beyond standard AEC-Q200 compliance before finalizing procurement.
Selection Notes
Select this component when a high-current common mode choke is required for automotive power lines. The 3.7 µH inductance provides effective noise filtering without excessive voltage drop due to low DC resistance. Consider the radial through-hole mounting type for robust mechanical stability in vibration-prone environments. Evaluate the 12.0 A current rating against peak load conditions to prevent saturation.
Part Context
This part belongs to the TDK AML series of common mode chokes. The series is engineered for automotive electronics, offering reliable noise suppression in demanding environments. The AML0820 designation indicates the specific case size and form factor, distinguishing it from other series variants with different electrical characteristics or mounting styles.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by matching inductance, current rating, and physical dimensions before considering alternative components.
