NFL18ST307H1A3D Filters

Current:	100mA
Height:	0.035" (0.90mm)
Size / Dimension:	0.063" L x 0.032" W (1.60mm x 0.80mm)
Package / Case:	0603 (1608 Metric), 3 PC Pad
Mounting Type:	Surface Mount
Voltage - Rated:	10V
Applications:	General Purpose
Operating Temperature:	-55°C ~ 125°C
ESD Protection:	No
Values:	L = 74nH, C = 16pF
Series:	EMIFIL®, NFL18
Resistance - Channel (Ohms):	--
Attenuation Value:	6dB @ 0MHz ~ 300MHz
Center / Cutoff Frequency:	300MHz (Cutoff)
Number of Channels:	1
Technology:	LC (T-Type)
Filter Order:	3rd
Type:	Low Pass
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

Electromagnetic interference (EMI) and radio frequency interference (RFI) filters are essential components used in a variety of electronic systems. The filters are designed to suppress conducted or radiated signals by allowing only the desired signals to reach their destination with minimal distortion and noise. This article discusses the application field and working principle of the NFL18ST307H1A3D, a type of EMI/RFI filter.

What Is the NFL18ST307H1A3D

The NFL18ST307H1A3D is an EMI/RFI filter designed to reduce the levels of conducted and radiated EMI/RFI in electronic systems. It is rated for voltage from 2.5V to 24V, with an operating current of up to 8A. The filter is housed in a small and low profile package, making it easy to use in space-constrained applications. The filter also features a high-performance protection network to provide optimal performance even in harsh environments.

Application Field

The NFL18ST307H1A3D is primarily used in automotive applications, such as powertrains, chassis systems, infotainment, lighting, and telematics. It is also suitable for industrial applications, like solar, medical, power electronics, motor control, and office automation. Additionally, the filter can be used in consumer electronics for a variety of applications.

Working Principle

The NFL18ST307H1A3D works by providing a low impedance path for signal and noise currents to pass. When the filter is connected between two components, any noise that is present will be diverted into the filter, rather than passing through the components and interfering with them. The filter also serves to reduce the noise that is generated by the components, thereby protecting them from the effects of radiated and conducted interference.The filter is composed of two components: an inductor and a capacitor. The inductor is used to suppress high frequencies, while the capacitor is used to suppress low frequencies. Together, they form an LC (inductor-capacitor) network that is capable of blocking the unwanted signals, while allowing the desired signals to pass through.

Conclusion

The NFL18ST307H1A3D is an EMI/RFI filter designed for use in a variety of applications. It is used to reduce the level of conducted and radiated EMI/RFI in electronic systems. The filter is composed of an inductor and a capacitor that form an LC filter network. The filter works by providing a low impedance path for signal and noise currents to pass, while simultaneously blocking unwanted signals.

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