BLM31PG391SN1L

Series:	EMIFIL®, BLM31
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Filter Type:	Power Line
Number of Lines:	1
Impedance @ Frequency:	390 Ohms @ 100MHz
Current Rating (Max):	2A
DC Resistance (DCR) (Max):	50 mOhm
Ratings:	--
Operating Temperature:	-55°C ~ 125°C
Package / Case:	1206 (3216 Metric)
Mounting Type:	Surface Mount
Height (Max):	0.051" (1.30mm)
Size / Dimension:	0.126" L x 0.063" W (3.20mm x 1.60mm)

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Ferrite Beads and Chips

Ferrite beads and chips are important components of the electronic solutions used to improve signal integrity. As a type of circuit element, ferrite beads and chips can help to filter out electrical noise, attenuate high-frequency interference, and provide protection for sensitive components in circuit boards. The BLM31PG391SN1L ferrite bead is a specific example. This model of ferrite bead is made up of a flat ferrite slab, made of materials like Mn-Zn, with an internal wire. It is a good choice for low frequency whole-stream applications, like signal line filtering and overvoltage protection. It also offers the advantages of a small size, low self-inductance, low insertion loss, and small heat capacitance. As such, it is perfect for applications in a variety of automotive and industrial systems. When it comes to the working principle of the BLM31PG391SN1L ferrite bead, it is quite simple. When the bead is placed between two conductors, an electric current runs along the wire inside of the beads conductor, creating a magnetic field. This magnetic field creates a low-impedance path that circumvents the conductors, causing high frequency signals (noise) to simply travel around the bead, rather than passing through it. This essentially creates a filter that reduces the amount of interference caused by the noise and allows the signal to continue without disturbance.The internal parameters of a BLM31PG391SN1L bead can vary from one supplier to another. The most important parameters that set this bead apart from other ferrite beads are its series inductance, impedance, and voltage ratings. The inductance of this bead typically falls between 15 and 20 microhenrys, with impedance ratings of anywhere from 7 to 10 ohms. It is also rated to tolerate up to 3A of current, with a DC working voltage of 25 Volts.In general, the BLM31PG391SN1L ferrite bead is an excellent choice for a variety of noise filtering applications. It is compact in size and offers a high impedance path to block out noise, while at the same time, allowing clear signals to pass through uninterrupted. As such, this ferrite bead is ideal for automotive and industrial solutions that need reliable noise protection and signal integrity.

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Part Number	Manufacturer	Price	Quantity	Description