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Product Detailed Parameters
- Description：FILTER LC(T) SMD
- Series：ACF
- Mfr：TDK Corporation
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Low Pass
- Filter Order：3rd
- Technology：LC (T-Type)
- Number of Channels：1
- Center / Cutoff Frequency：-
- Attenuation Value：25dB @ 170MHz ~ 250MHz
- Resistance - Channel (Ohms)：0.15
- Values：-
- ESD Protection：No
- Operating Temperature：-25°C ~ 85°C
- Applications：Data Lines for Mobile Devices
- Voltage - Rated：20V
- Mounting Type：Surface Mount
- Package / Case：1210 (3225 Metric), 3 PC Pad
- Size / Dimension：0.126" L x 0.098" W (3.20mm x 2.50mm)
- Height：0.079" (2.00mm)
- Current：300 mA
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Overview
The ACF321825-221-TD01 is a third-order LC (T-type) EMI filter manufactured by TDK Corporation. Designed for single-channel signal line applications, this component provides effective noise suppression in compact surface-mount packages. Key electrical specifications include a cutoff frequency of 100 MHz, a voltage rating of 20 VDC, and a current rating of 300 mA. The device offers an attenuation value of 25 dB within the 170 MHz to 250 MHz range and features a channel resistance of 0.15 Ohms.
Feature Summary
- Integrates third-order LC T-circuit topology for enhanced low-pass filtering performance
- Provides high attenuation characteristics specifically optimized for signal line noise suppression
- Supports single-channel operation with flat-style SMD packaging for automated assembly
Applications
- Data line filtering in electronic circuits
- Signal line EMI suppression
- Noise reduction in single-channel communication interfaces
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for shipping restrictions applicable to your region. Ensure storage conditions meet manufacturer guidelines to maintain solderability and electrical integrity prior to assembly.
Selection Notes
Select this component when designing circuits requiring third-order attenuation for single-channel signal lines. Evaluate the 300 mA current rating and 20 VDC voltage limit against operational requirements. Consider the 0.15 Ohm resistance impact on signal integrity and power loss in the specific application environment.
Part Context
This part belongs to TDK's ACF series of EMI filter circuits. These components are engineered to address electromagnetic interference challenges in modern electronics. The series utilizes advanced materials to achieve sharp attenuation curves while maintaining small form factors suitable for dense PCB layouts.
FAQ
What is the circuit topology of the ACF321825-221-TD01?
It utilizes a third-order LC (T-type) filter topology.
What is the specified current rating for this filter?
The maximum current rating is 300 mA.
