BLM18HE152SZ1D

Series:	EMIFIL®, BLM18
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Filter Type:	Signal Line
Number of Lines:	1
Impedance @ Frequency:	1.5 kOhms @ 100MHz
Current Rating (Max):	500mA
DC Resistance (DCR) (Max):	500 mOhm
Ratings:	AEC-Q200
Operating Temperature:	-55°C ~ 125°C
Package / Case:	0603 (1608 Metric)
Mounting Type:	Surface Mount
Height (Max):	0.037" (0.95mm)
Size / Dimension:	0.063" L x 0.031" W (1.60mm x 0.80mm)

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Introduction to Ferrite Beads and Chips:Ferrite beads and chips are components made of ferrite, a hard magnetic material composed of iron and other non-iron elements.Ferrite beads are used as flexible shields to protect electrical circuits from EMI/RFI interference and to prevent electromagnetic radiation from affecting the performance of electronic components. Ferrite chips are much smaller, and are used in electric circuits to protect them from damage caused by electromagnetic interference.BLM18HE152SZ1D Application Field and Working Principle:The BLM18HE152SZ1D is a surface mount ferrite chip bead designed for low frequency EMI/RFI electromagnetic interference suppression. The “BLM” in the part number stands for Bead, Low profile, Multi-layer winding. The chip bead has ultra-low profile of 0.6mm and provides minimum inductance of 152nH, making it suitable for use in high-speed digital and data communication systems.The BLM18HE152SZ1D has two main parts: the body and the winding, made from a ferrite material. The working principle of the BLM18HE152SZ1D is based on the fact that when exposed to external electromagnetic fields, currents are generated in the winding’s magnetic core material. The magnetic field created in the winding generates an opposing current, thus suppressing the EMI/RFI radiation. The BLM18HE152SZ1D is suitable for use in a wide range of applications, such as USB3.1 and Thunderbolt communication interface protection, antenna feed lines protection, DVI/HDMI ports, notebook and server computers, broadband network equipment, mobile phones, and automotive electronics. The BLM18HE152SZ1D offers excellent signal integrity in high-speed digital applications due to its low impedance performance up to 13GHz. The chip also has a wide frequency range of 800MHz to 6GHz, and can provide excellent EMI/RFI suppression. Advantages and Disadvantages The BLM18HE152SZ1D provides several advantages; it has a low profile design that enables it to fit into compact electronic gadgets, a wide frequency range for effective interference suppression, high power rating, and a low resistance at high frequencies. On the other hand, the most notable disadvantage of the BLM18HE152SZ1D is that it is more expensive than other ferrite beads available in the market. It also has a limited working temperature range depending on the applied environment. Conclusion Ferrite beads, such as the BLM18HE152SZ1D, are widely used in high speed digital and data communication systems to suppress the effects of EMI/RFI radiation. They are also used in a variety of applications ranging from USB3.1 and Thunderbolt communication interface protection, to antenna feed lines protection, DVI/HDMI ports, notebook and server computers, and mobile phones. The BLM18HE152SZ1D offers excellent signal integrity in high-speed digital applications due to its low impedance performance up to 13GHz. The chip also has a wide frequency range of 800MHz to 6GHz and provides excellent EMI/RFI suppression. However, it is more expensive than other ferrite beads available in the market and has a limited working temperature range.

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