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Product Detailed Parameters
- Description：CMC 750UH 20A 3LN THROUGH HOLE
- Series：B82746S4
- Mfr：EPCOS - TDK Electronics
- Package：Tray
- Filter Type：Power Line
- Number of Lines：3
- Current Rating (Max)：20A
- DC Resistance (DCR) (Max)：2.7mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：500/300V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：2.165" Dia (55.00mm)
- Height (Max)：1.260" (32.00mm)
- Package / Case：Horizontal, 6 PC Pin
- Inductance @ Frequency：750 µH @ 100 kHz
- Impedance @ Frequency：-
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Overview
The B82746S4203A020 is a current-compensated ring core double choke from the EPCOS (TDK) B82746 series. It is designed for power line applications with a rated voltage of 250 V AC and a current rating of 20 A. The component provides an inductance of 0.75 mH per line, resulting in a total common-mode inductance characteristic suitable for filtering. It features a vertical through-hole mounting configuration with four pins and operates within a temperature range of -40°C to +125°C.
Feature Summary
- Current-compensated ring core construction for effective common-mode noise suppression
- Designed for high-current power line applications up to 20 A
- Vertical through-hole mounting for robust mechanical integration
Applications
- Power supply input filtering
- Industrial equipment EMI suppression
- Power line noise reduction
Procurement Notes
Verify the exact part number against official TDK-EPC documentation to ensure compatibility with specific design requirements. Confirm that the 20 A current rating and 0.75 mH inductance align with the target application's electrical specifications. Check for any specific ordering suffixes or packaging variations that may affect availability or handling procedures.
Selection Notes
Select this component when high current capacity and compact ring core geometry are required for power line filtering. Ensure the operating environment stays within the specified -40°C to +125°C temperature range. Verify that the through-hole mounting style fits the PCB layout constraints and that the 250 V AC rating meets the system voltage requirements.
Part Context
This component belongs to the B82746 series of current-compensated ring core chokes manufactured by EPCOS, now part of TDK Electronics. These components are widely used in industrial and commercial electronics for electromagnetic interference suppression on AC power lines. The series is known for its high saturation current and stable inductance characteristics under load.
Replacement Considerations
Publicly confirmed substitute part numbers for B82746S4203A020 were not identified in the provided source material. Consult official TDK-EPC cross-reference guides for verified alternatives.
