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BLM18PG471SN1D

470ohm ferrite bead, 1A, 0.2ohm DCR, 0603, DC power line EMI suppression

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Pieza del fabricante：

BLM18PG471SN1D

Paquete：

0603 [1608 Metric] (1.6 x 0.8 x 0.8 mm)

Marca：
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Compromiso de calidad
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Descripción

Productos

The BLM18PG471SN1D from Murata is a chip ferrite bead from the EMIFIL BLM18PG series designed for high-frequency noise suppression in power lines. It features 470 ohm impedance at 100MHz, 1A rated current, and 0.2 ohm max DC resistance in a 0603 (1608 metric) package.

Especificaciones

Impedance at 100MHz 470 ohm +/-25%
Rated Current 1A (at 85C and 125C)
DC Resistance (max) 0.2 ohm
Package Size 0603 (1.6 x 0.8 x 0.8 mm)
Temperatura de funcionamiento -55 to 125 C
Number of Circuits 1
Category For DC power line
Weight 0.005g (typ)

Características

  • 470 ohm impedance at 100MHz for effective EMI suppression
  • Low DC resistance of 0.2 ohm max for minimal voltage drop
  • 1A rated current suitable for power line applications
  • Does not require ground connection for effective operation
  • Nickel barrier electrodes provide excellent solder heat resistance
  • Compact 0603 footprint for high-density PCB designs
  • RoHS compliant and lead-free

Aplicaciones

  • DC power line noise suppression
  • Switching power supply output filtering
  • Digital circuit power rail decoupling
  • USB and HDMI port EMI filtering
  • Automotive electronics power line filtering

The BLM18PG471SN1D from Murata is a chip ferrite bead from the EMIFIL BLM18PG series, specifically designed for high-frequency noise suppression in DC power line applications. With an impedance of 470 ohm at 100MHz and low DC resistance of 0.2 ohm maximum, it effectively attenuates high-frequency noise while maintaining minimal voltage drop at DC. The device is rated for 1A continuous current at both 85C and 125C ambient temperatures. Unlike traditional EMI filters, the BLM series does not require a ground connection, making it effective in circuits without stable ground lines. The nickel barrier structure of the external electrodes provides excellent solder heat resistance. The compact 0603 (1.6 x 0.8mm) footprint is ideal for high-density PCB layouts.

The BLM18PG471SN1D operates as a high-frequency impedance element using the frequency-dependent characteristics of ferrite material. Key subsystems include: (1) Ferrite Material – the multi-layer ferrite bead structure presents low impedance at DC and low frequencies, allowing power current to pass with minimal voltage drop (0.2 ohm DC resistance); at high frequencies, the ferrite material’s magnetic permeability creates high impedance (470 ohm at 100MHz) that absorbs and converts noise energy to heat; (2) Multi-Layer Construction – alternating layers of ferrite material and internal electrodes create a monolithic structure with consistent impedance characteristics; (3) Nickel Barrier Electrodes – a nickel barrier layer between the ferrite and external terminals prevents silver migration and provides excellent solder heat resistance during PCB assembly; (4) Impedance-Frequency Curve – impedance rises from near-zero at DC through the resistive region (30MHz to several hundred MHz) where noise energy is dissipated as heat, avoiding resonance issues.

Pin Nombre Tipo Función
1 Terminal 1 E/S Signal/power connection (no polarity)
2 Terminal 2 E/S Signal/power connection (no polarity)
  • DC power line noise filtering on switching regulator outputs
  • Digital IC power rail decoupling: placing near VCC pins to suppress switching noise
  • USB and HDMI port EMI filtering: series placement on power and signal lines
  • Automotive electronics: power line noise suppression in infotainment and ADAS modules
  • LED driver output filtering: reducing high-frequency ripple on LED power rails
Fabricante Número de pieza Paquete Notas
Murata BLM18PG121SN1D 0603 120 ohm, 2A, lower impedance
TDK MMZ1608S471ATD25 0603 470 ohm, 1A, equivalent
TAIYO YUDEN FBMK1608HS470-T 0603 470 ohm, 1A ferrite bead
Samsung CIM22P471NE 0805 470 ohm, larger package
Murata BLM18PG471SN1J 0603 Same part, different packaging
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Envíos y pagos

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Servicio y embalaje

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

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Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

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We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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