ST-104A4

Overview

The KEMET ST-104A4 is a four-line common mode choke designed for through-hole mounting. It features a rated DC current of 500 mA and a maximum DC resistance of 360 milliohms. The component provides an impedance of 600 ohms at 7 MHz. It operates within a temperature range of -20°C to +75°C and supports a DC voltage rating of 50 V.

Feature Summary

• Four-line configuration for multi-conductor noise suppression
• Through-hole termination style for robust mechanical attachment
• Stable impedance characteristics at high frequencies

Applications

• Common mode noise filtering in DC power lines
• Signal integrity protection in multi-wire data interfaces
• Electromagnetic interference suppression in industrial control systems

Procurement Notes

Verify the specific impedance value required for your application, as sources indicate variations between 600 ohms and 3 kOhms at 7 MHz. Confirm the package type is through-hole and check RoHS compliance status before ordering. Ensure the 500 mA current rating meets your circuit's operational demands.

Selection Notes

Select this component when four independent lines require simultaneous common mode noise attenuation. The low DC resistance minimizes power loss in the signal path. Verify that the operating temperature range of -20°C to +75°C aligns with the environmental conditions of the target assembly.

Part Context

This part belongs to KEMET's ST series of common mode chokes. These components are engineered for general-purpose electromagnetic interference filtering. The design prioritizes compact through-hole integration for standard PCB layouts requiring multi-line noise reduction.

FAQ

What is the DC resistance of the ST-104A4?

The maximum DC resistance is specified as 360 milliohms.

Does the ST-104A4 support surface mount installation?

No, it is designed for through-hole mounting only.