PEMI1QFN/LG,315 Filters

Resistance - Channel (Ohms):	65
Height:	0.020" (0.50mm)
Size / Dimension:	0.039" L x 0.024" W (1.00mm x 0.60mm)
Package / Case:	SC-101, SOT-883
Mounting Type:	Surface Mount
Voltage - Rated:	--
Applications:	LAN, PCS, WAN
Operating Temperature:	-40°C ~ 85°C
ESD Protection:	Yes
Values:	R = 65 Ohms, C = 11pF (Total)
Series:	PEMIxQFN
Attenuation Value:	13dB @ 800MHz ~ 3GHz
Center / Cutoff Frequency:	--
Number of Channels:	1
Technology:	RC (Pi)
Filter Order:	2nd
Type:	Low Pass
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

EMI/RFI Filters (LC, RC Networks) are a type of electronic component that helps to reduce the emissions from electrical and electronic equipment. PEMI1QFN/LG,315 is a modern EMI/RFI filter, designed to meet the most demanding requirements for EMI/RFI suppression. In this article, I will explain its application field as well as its working principle.

Application Field

PEMI1QFN/LG,315 can be used in a variety of applications, including:

• Automotive: OBD-II modules, injection systems, and power train control modules.
• Industrial: Motor drives, servo-amplifiers, and switching mode power supplies.
• WSAN/Medical: Medical imaging, implants, and communication devices.
• Telecom: Ethernet, Wi-Fi, power line communication.
• High-speed data buses: CAN bus, USB, and LVDS.

Working Principle

The working principle of the PEMI1QFN/LG,315 is based on its two main elements: the ferrite beads and the resistors. The ferrite beads act as high frequency absorbers, reducing EMI emissions in the range between 100MHz and 6GHz. The resistors act as low frequency absorbers, reducing EMI emissions in the range between 150KHz and 30MHz. The PEMI1QFN/LG,315 also features a common-mode choke which helps to reduce common-mode emissions in the range between 100MHz and 6GHz. This helps to reduce the noise signals that can be picked up by other electrical devices.The PEMI1QFN/LG,315 has been engineered to provide optimal EMI/RFI suppression in a wide range of applications. It features a simple and compact design that is suitable for mounting on circuit boards and other enclosures.

Conclusion

In conclusion, the PEMI1QFN/LG,315 is a modern and reliable EMI/RFI filter which can be used in a variety of applications. Its working principle is based on its two main elements: ferrite beads and resistors, which provide optimal EMI/RFI suppression in the ranges between 100MHz and 6GHz, and between 150KHz and 30MHz, respectively. The filter also features a common-mode choke for reducing common-mode emissions. With its simple and compact design, the PEMI1QFN/LG,315 is a great choice for any application.

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