ACH3218-221-TD08

Overview

The ACH3218-221-TD08 is a surface-mount LC (T-type) EMC filter manufactured by TDK Corporation. It features a rated voltage of 20V and incorporates a capacitance value of 220 pF. The component provides a cutoff frequency of 200 MHz, designed for effective noise suppression in high-current circuits. It operates within a temperature range of -40°C to +125°C.

Feature Summary

• Provides excellent attenuation characteristics through T-type LC filter topology
• Designed for use in high-current circuits with stable ground connections

Applications

• High-current circuit noise suppression
• EMI/RFI filtering in electronic systems requiring stable grounds

Procurement Notes

Verify the specific suffix TD08 against official TDK documentation to confirm package and termination details. Confirm current product status as distributors may list this item under last-time-buy or obsolete classifications. Ensure compatibility with surface-mount assembly processes and verify RoHS compliance requirements for the target application environment before procurement.

Selection Notes

Select this component when designing circuits that require robust EMI suppression in high-current environments. The 20V rating and 220 pF capacitance define its electrical boundaries. Ensure the PCB layout provides a stable ground reference to maximize the filter's attenuation performance at the specified 200 MHz cutoff frequency.

Part Context

This part belongs to the ACH3218 series of three-terminal filters from TDK Electronics. These components are engineered specifically for electromagnetic compatibility applications where space constraints necessitate surface-mount solutions. The series utilizes ferrite chip technology integrated with capacitive elements to form the T-network structure.

Replacement Considerations

Publicly confirmed substitute part numbers for ACH3218-221-TD08 were not identified in available documentation. Verify pinout and electrical parameters against alternative TDK three-terminal filters if direct substitution is required.