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Product Detailed Parameters
- Description：CMC 26MH 400MA 2LN TH
- Series：ALFT-03A
- Mfr：Abracon LLC
- Package：Bulk
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：400mA
- DC Resistance (DCR) (Max)：1.5Ohm
- Voltage Rating - DC：250V
- Voltage Rating - AC：-
- Operating Temperature：-25°C ~ 85°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.941" L x 0.709" W (23.90mm x 18.00mm)
- Height (Max)：0.850" (21.60mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：26 mH @ 1 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The ALFT-03A-3 is a common mode filter choke manufactured by Abracon LLC, designed for AC line filtering applications. This component features a ferrite core and supports through-hole PCB mounting with radial termination. It provides an inductance of 26 mH at 1 kHz and handles a maximum DC current of 400 mA. The device exhibits a maximum DC resistance of 1.5 ohms. Operating temperatures range from -25°C to +85°C. Physical dimensions are 23.9 mm in length, 18 mm in width, and 21.6 mm in height.
Feature Summary
- Utilizes a ferrite core structure for effective common mode noise suppression on AC lines.
- Designed for vertical through-hole PCB mounting with radial pin configuration.
- Provides high inductance values suitable for filtering low-frequency interference.
Applications
- AC power line input filtering
- Electromagnetic interference (EMI) suppression in consumer electronics
- General purpose common mode noise reduction
Procurement Notes
Verify the specific part number ALFT-03A-3 against official Abracon documentation to confirm electrical parameters such as 26 mH inductance and 400 mA current rating. Ensure compatibility with through-hole assembly processes and verify that the operating temperature range meets system requirements. Confirm RoHS compliance status via the manufacturer datasheet before integration.
Selection Notes
Select this component when high inductance is required for low-current AC line filtering. The 26 mH value distinguishes it from other series variants like the ALFT-03A-13 which offers lower inductance but higher current capacity. Consider the physical footprint and lead spacing for PCB layout constraints. Evaluate thermal performance within the specified -25°C to +85°C range.
Part Context
This component belongs to the ALFT series of common mode chokes from Abracon. The series includes various models differentiated by inductance and current ratings, such as the ALFT-03A-13 and ALFT-03A-4. These filters are generally intended for commercial electronic equipment rather than military or life-support applications.
Replacement Considerations
Direct substitutes may include other Abracon ALFT series parts with similar inductance, though current ratings will vary. Cross-brand replacements require matching inductance, current handling, and physical dimensions. Verify pinout and mounting style compatibility before substitution.
