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BLM18KG331SH1D

Name: BLM18KG331SH1D
Rating: 4.7 (12 reviews)

FERRITE BEAD 330 OHM 0603 1LN

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規格

Series	EMIFIL®, BLM18
Part Status	Active
Base Product Number	BLM18KG
Filter Type	Power Line
Number of Lines	1
Impedance @ Frequency	330 Ohms @ 100 MHz
Current Rating (Max)	1.7A
DC Resistance (DCR) (Max)	80mOhm
Ratings	AEC-Q200
Operating Temperature	-55°C ~ 125°C
Package	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)
Packaging	Cut Tape (CT), Tape & Reel (TR)

概述

Description

BLM18KG331SH1D is a Murata ferrite bead EMI suppression device in the BLM18 series. It is a small, two-terminal surface-mount component used in series with a power or signal line to attenuate high-frequency noise while allowing DC to pass.
Key points:
- 331 code indicates approximately 330 Ω impedance at 100 MHz, enabling effective HF noise suppression.
- Low DC resistance to minimize voltage drop on the line.
- SMD, two-terminal, non-polar.
Uses: decoupling/EMI suppression on power rails and data lines in consumer, automotive, and IoT electronics.
For exact impedance vs. frequency curve, current rating, and recommended PCB footprint, consult the Murata BLM18KG331SH1D datasheet.

Features

BLM18KG331SH1D is a Murata BLM18 series SMD ferrite bead used for EMI suppression. Key features:
- Impedance: 330 Ω at 100 MHz (codes “331”).
- Very low DC resistance to minimize I·R drop.
- 2-terminal, surface-mount device for high-density assemblies.
- Broad-band high-frequency noise suppression with good attenuation.
- Reflow-solderable; RoHS compliant (halogen-free materials).
- Operating temperature range typically -55°C to +125°C.
- Small footprint (BLM18 size) suitable for compact boards and multi-layer layouts.
Note: For exact dimensions, tolerance, current rating, and reflow specs, consult the official datasheet.

Package

SMD chip ferrite bead in a surface-mount package, size 1.8 × 2.3 mm (BLM18 series).

Pinout

- Pin count: 2 (two-terminal device)
- Function: SMD ferrite bead used as an EMI/RFI suppression filter on power or signal lines (high impedance at high frequencies, low DC resistance). The 331 indicates about 330 Ω impedance at 100 MHz (typical).

Manufacturer

- Manufacturer: Murata Manufacturing Co., Ltd.
- About the company: Murata is a Japanese multinational electronics company that designs, manufactures, and sells electronic components and solutions (including ferrite beads like the BLM series). It is a global leader in passive components, sensors, and related technologies, with headquarters in Kyoto, Japan.

Application

BLM18KG331SH1D is a chip ferrite bead for high-frequency EMI suppression. Typical applications include:
- Decoupling/filtering on power rails and data lines in consumer electronics (phones, tablets, PCs, TVs) and mobile devices
- EMI control on interfaces (USB, HDMI, PCIe, LVDS) and other high-speed interconnects
- Board-level noise suppression in automotive and industrial electronics
- Filtering on voltage regulators, microcontroller clocks, and other high-speed circuits.

Equivalent

To give precise equivalents, please confirm:
- Do you want 1:1 cross-refs in the same BLM18 package and 330 Ω @100 MHz?
- Preferred manufacturers (Murata, TDK, Taiyo Yuden, Würth, etc.)?
- Same tolerance and tempco requirements?
With those, I can provide exact part numbers for equivalent ferrite beads.