ST-204A3

$2.44

Description：CMC 500MA 4LN 1 KOHM TH
Series：ST
Mfr：KEMET
Package：Tray,Tray

SKU:76d49cd37029 Category: Common Mode Chokes Brand: KEMET

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Product introduction

Product Detailed Parameters

Description：CMC 500MA 4LN 1 KOHM TH
Series：ST
Mfr：KEMET
Package：Tray,Tray
Filter Type：-
Number of Lines：4
Current Rating (Max)：500mA
DC Resistance (DCR) (Max)：170mOhm
Voltage Rating - DC：50V
Voltage Rating - AC：-
Operating Temperature：-20°C ~ 75°C
Ratings：-
Approval Agency：-
Features：-
Mounting Type：Through Hole
Size / Dimension：0.512" L x 0.512" W (13.00mm x 13.00mm)
Height (Max)：0.433" (11.00mm)
Package / Case：Horizontal, 8 PC Pin
Inductance @ Frequency：-
Impedance @ Frequency：1 kOhms @ 7 MHz
Qualification：-
Grade：-

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ST-204A3

Overview

The KEMET ST-204A3 is a through-hole common mode DC line filter belonging to the ST series. It features proprietary Manganese-Zinc and Nickel-Zinc ferrite materials for effective noise suppression. The component operates with a maximum current of 0.5A and withstands 500VDC between lines for one minute. Key electrical parameters include an impedance of 1 kOhms at 7 MHz, a maximum DC resistance of 170 mOhms, and a rated voltage of 50V. It utilizes an 8-pin radial toroidal package.

Feature Summary

Utilizes proprietary Manganese-Zinc and Nickel-Zinc ferrite materials for enhanced filtering performance
Designed as a through-hole common mode choke for DC line applications
Provides high dielectric strength withstanding 500VDC between lines

Applications

FM band frequency range interference suppression (7 to 40 MHz)
Common mode noise filtering in DC power lines
Electromagnetic compatibility enhancement in electronic circuits

Procurement Notes

Verify the specific datasheet version when sourcing, as manufacturer documentation may update mechanical dimensions or material specifications over time. Confirm that the 8-pin radial toroidal package matches your PCB layout requirements. Ensure the operating temperature range meets your environmental conditions. Cross-reference the impedance value at 7 MHz against your specific noise frequency profile to validate suitability for your application.

Selection Notes

Select this component when designing circuits requiring common mode noise reduction in low-current DC applications up to 0.5A. The 1 kOhm impedance at 7 MHz makes it suitable for FM band interference mitigation. Consider the 8-pin radial form factor for through-hole assembly processes. Evaluate the 170 mOhm DC resistance to ensure minimal voltage drop across the power lines under full load conditions.

Part Context

The ST-204A3 is part of KEMET's ST series of DC line filters. This series focuses on common mode chokes utilizing advanced ferrite materials. The product is classified as active and is designed for robust electromagnetic interference suppression in various electronic systems.