CMJ-2-101

Common Mode Chokes Overview

The Talema Group LLC CMJ-2-101 is a miniature surface-mount common mode choke designed for signal line filtering. It features dual lines with an inductance of 100 µH at 100 kHz and a maximum DC resistance of 260 mΩ. The component supports a current rating of 500 mA and operates within a temperature range of 0°C to +70°C. Its compact SMD form factor facilitates integration into space-constrained electronic assemblies requiring EMI suppression.

Common Mode Chokes Feature Summary

• Miniature surface-mount construction for automated assembly
• Dual-line configuration for balanced signal filtering
• High inductance density for effective noise attenuation

Common Mode Chokes Applications

• Signal line EMI suppression
• Data interface protection
• Telecommunications equipment filtering

Common Mode Chokes Procurement Notes

Verify the specific package dimensions and pinout against the official Talema datasheet before PCB layout finalization. Confirm that the 500 mA current rating meets the operational requirements of the target circuit under all expected thermal conditions. Ensure compatibility with standard reflow soldering profiles for surface-mount components.

Common Mode Chokes Selection Notes

Select this component when space constraints preclude through-hole chokes but significant common mode noise reduction is required. The 100 µH value provides strong attenuation for typical data rates, while the low DCR minimizes signal loss. Consider the operating temperature range if the application involves high ambient heat or self-heating effects.

Common Mode Chokes Part Context

This part belongs to the CMJ series of miniature SMD common mode double chokes from Talema Group LLC. The series offers various inductance values tailored for different frequency ranges. Talema specializes in custom and standard magnetic components, providing reliable filtering solutions for global electronics markets since 1975.

Common Mode Chokes Replacement Considerations

Cross-reference models include the CTJ-2-101 from the same manufacturer. Verify electrical parameters such as inductance tolerance and current rating before substitution to ensure equivalent performance in the specific application.