ACF451832-221-TLD01

$0.20

Description：FILTER LC(T) SMD
Series：ACF
Mfr：TDK Corporation
Package：Tape & Reel (TR)

SKU:e6470c25ac3a Category: EMI/RFI Filters (LC, RC Networks) Brand: TDK Corporation

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Product introduction

Product Detailed Parameters

Description：FILTER LC(T) SMD
Series：ACF
Mfr：TDK Corporation
Package：Tape & Reel (TR)
Type：Low Pass
Filter Order：3rd
Technology：LC (T-Type)
Number of Channels：1
Center / Cutoff Frequency：-
Attenuation Value：25dB @ 150MHz ~ 250MHz
Resistance - Channel (Ohms)：0.15
Values：-
ESD Protection：No
Operating Temperature：-25°C ~ 85°C
Applications：Data Lines for Mobile Devices
Voltage - Rated：50V
Mounting Type：Surface Mount
Package / Case：1812 (4532 Metric), 3 PC Pad
Size / Dimension：0.177" L x 0.126" W (4.50mm x 3.20mm)
Height：0.079" (2.00mm)
Current：300 mA

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ACF451832-221-TLD01

Overview

The TDK ACF451832-221-TLD01 is a third-order LC (T-Type) low-pass EMI filter circuit designed for signal line noise suppression. It operates within a frequency range of 150 MHz to 250 MHz, providing 25 dB attenuation at the cutoff frequency of 190 MHz. The component supports a rated voltage of 50 V and a current rating of 300 mA. Housed in an 1812 (4532 metric) surface-mount package with dimensions of 4.5 mm x 3.2 mm x 1.8 mm, it functions reliably between -25°C and +85°C.

Feature Summary

Third-order LC T-type topology for enhanced high-frequency noise rejection
Compact 1812 surface-mount footprint suitable for space-constrained mobile designs
Low DC resistance channel configuration for minimal signal loss

Applications

Data lines for mobile devices
Signal line EMI filtering in portable electronics
High-speed interface noise suppression

Procurement Notes

Verify part status as Not For New Designs before procurement. Confirm availability through authorized distributors as standard stock may be limited. Ensure compatibility with existing PCB layouts due to specific 1812 package dimensions. Check RoHS compliance details via official datasheets prior to integration into final assemblies.

Selection Notes

Select this component for applications requiring third-order attenuation in compact form factors. The 300 mA current rating suits low-power signal lines rather than power delivery paths. Verify that the 50 V rating aligns with system operating voltages. Consider the 1812 package size against available board real estate during layout planning.

Part Context

This component belongs to TDK's ACF series of chip filters, specifically engineered for electromagnetic interference suppression in digital circuits. The ACF451832 variant utilizes a T-type LC network structure to achieve steep roll-off characteristics. It is distinct from RC networks or pi-filter configurations within the broader EMI filter portfolio.