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Product Detailed Parameters
- Description：CMC 15MH 400MA 2LN TH
- Series：B82730
- Mfr：EPCOS - TDK Electronics
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：400mA
- DC Resistance (DCR) (Max)：2.4Ohm (Typ)
- Voltage Rating - DC：-
- Voltage Rating - AC：300V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：UR, VDE
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.650" L x 0.591" W (16.50mm x 15.00mm)
- Height (Max)：0.472" (12.00mm)
- Package / Case：Horizontal, 4 PC Pin
- Inductance @ Frequency：15 mH @ 10 kHz
- Impedance @ Frequency：-
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Overview
The B82730G3401A020 is a current-compensated U-core double choke from the EPCOS (TDK) B82730G series, designed for power line filtering. It features a vertical through-hole mounting configuration with four pins. Key electrical parameters include an inductance of 4 mH and a rated current of 400 mA. The DC resistance is typically 2.4 Ohms, and it supports AC voltages up to 300 V. The component operates within a temperature range of -40°C to +125°C.
Feature Summary
- Current-compensated U-core design for effective common mode noise suppression
- Vertical through-hole construction for secure PCB integration
- Rated for 300 V AC power line applications
Applications
- Power line filtering in industrial electronics
- EMI suppression in automotive electronic systems
- Noise reduction in consumer electronics power supplies
Procurement Notes
Verify the specific suffix A020 against the manufacturer's official datasheet to confirm pinout orientation and packaging details. Ensure the 400 mA current rating aligns with the circuit's maximum load requirements. Confirm that the 2.4 Ohm DC resistance does not cause excessive voltage drop in the application. Cross-reference the 300 V AC rating with the system's operating voltage to ensure safety compliance.
Selection Notes
Select this component when a compact, current-compensated choke is required for differential mode noise attenuation in low-current circuits. The 4 mH inductance provides significant impedance at switching frequencies. The vertical form factor suits boards with limited surface area but sufficient height clearance. Consider the 125°C operating limit for high-temperature environments.
Part Context
This part belongs to the B82730G series of power line chokes manufactured by EPCOS, now part of TDK Electronics. These components are engineered for robust performance in demanding electronic environments. The series is widely used in industries requiring reliable EMI filtering for sensitive equipment connected to AC power lines.
Replacement Considerations
Check for direct substitutes within the B82730G series with matching inductance and current ratings. Verify physical dimensions and pin compatibility before replacing. Consult TDK's official cross-reference tools for approved alternatives.
