BLM18PG331SZ1D

Series:	EMIFIL®, BLM18
Packaging:	Tape & Reel (TR)
Part Status:	Active
Filter Type:	Power Line
Number of Lines:	1
Current Rating (Max):	1.2A
DC Resistance (DCR) (Max):	150 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 0.032" W (1.60mm x 0.80mm)

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Ferrite Beads and ChipsFerrite beads and chips are generally considered the most cost-effective and widely used electromagnetic interference (EMI) filter components. They are available in a variety of package sizes and shapes, and are widely used in a variety of applications. The BLM18PG331SZ1D ferrite bead is one such filter component.The BLM18PG331SZ1D ferrite bead is a Molded-Multilayer Ferrite Bead that is available in a variety of package sizes from 4-Pin SOT-323 to 4-Pin SOT-223 to 4-Pin DIP packages. These components are usually used in applications where EMI reduction and transient voltage protection are desired. This particular component has a high overall efficiency and offers great flexibility in terms of its range of operating voltages and frequency ranges.Application FieldThe BLM18PG331SZ1D ferrite bead is specifically designed for Power line (DC) applications. It is ideal for EMI/RFI (electromagnetic interference/radio frequency interference) suppression and transient voltage protection in power terminals and signal/data lines. It has been developed to provide the highest attenuation performance (~50 Ohms) with very low series impedance. As such, this component is a great choice for applications that require high-speed switching between two different voltage sources.The BLM18PG331SZ1D ferrite bead is also an excellent choice for high-power applications of up to 30A, where high-speed dynamic protection is desired. It has been designed to offer maximum EMI suppression even in sudden voltage changes. Moreover, it can handle high frequency noise (up to 10GHz).Working PrincipleThe working principle of the BLM18PG331SZ1D ferrite bead is based on the fact that it offers high impedance to the signals/noise passing through it. This high impedance helps to filter out unwanted noise and interference, while allowing legitimate signals to pass through with minimal loss.The ferrite bead is made up of layers of ferrite material, with each layer providing an alternating RH (right-hand) and LH (left-hand) impedance. This alternating impedance creates a magnetic field which carries most of the noise away. The magnetic field also provides protection against surges and other transient events.In summary, the BLM18PG331SZ1D ferrite bead is a great choice for EMI/RFI protection and transient voltage protection in power lines and signal applications. It has been designed to provide a high overall efficiency, with a wide range of operating voltages and frequencies. This particular ferrite bead also offers protection against surges and other transient events.

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