BLM18BB221SN1D

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:	220 Ohms @ 100MHz
Current Rating (Max):	450mA
DC Resistance (DCR) (Max):	450 mOhm
Ratings:	--
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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What is a BLM18BB221SN1D?

BLM18BB221SN1D is a ferrite bead and chip, a type of electronic component. It is used in the electronic and electrical engineering industries to suppress the effect of electromagnetic interference (EMI) in sensitive environments. The ferrite bead and chip functions as a kind of "filter," blocking or dissipating unwanted signals in cables, wires, circuit boards, and other components in order to prevent distraction or disruption to other equipment.

BLM18BB221SN1D Application Field

BLM18BB221SN1D can be found in a wide range of electronic and electrical engineering applications. This versatile component is often used in aeronautics, military, medical, industrial, and aerospace applications. EMI is a common problem present in these fields, and ferrite beads and chips are an essential component of any effective EMI suppression solution.In addition to its use in engineering fields, BLM18BB221SN1D can also be found in consumer electronics, computers, and telecommunications applications. They are used in these industries to block or dissipate interference from other electronic components such as power sources, battery packs, cellphone chargers, Ethernet cables, and other common household items.

BLM18BB221SN1D Working Principle

BLM18BB221SN1D is made from a core of ferrite, a type of material with high electrical resistivity and low magnetic reactivity. The core of the ferrite bead and chip is surrounded by an envelope of copper wire. The copper enables the ferrite to absorb and dissipate electromagnetic interference in the form of heat.The copper also acts as a shield against the radiation of EMI from the chip itself. This is especially useful when the chip is surrounded by other components or in extremely sensitive environments such as radio rooms.In addition, the copper layer of the BLM18BB221SN1D provides a low-impedance path to ground, making it easier for it to dissipate the EMI. This helps ensure that the chip remains a reliable source of protection in sensitive environments.

Conclusion

The BLM18BB221SN1D ferrite bead and chip is an essential component for any effective EMI suppression solution. It is used across a wide range of industries including aeronautics, military, medical, industrial, and aerospace, as well as in consumer electronics, computers, and telecommunications applications. The ferrite bead and chip absorbs and dissipates electromagnetic interference in the form of heat thanks to its core of ferrite and its protective layer of copper. It also offers a low-impedance path to ground, making it easier for it to dissipate EMI.

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