BLM21AG121SN1D – MURATA

Electronic Components
 
Part Number:
BLM21AG121SN1D
 
 
Manufacturer:
 
 
Date Code:
 
 
RoHS:
RoHS Compliant
 
 
MSL:
1
 
 
COO:
JAPAN
 
 
Description:

120Ω @ 100MHz Ferrite Bead, 0805, 800mA, 100mΩ Impedance, 1 Element

 
 
Datasheet:
 
 
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Product Details:

Overview

The Murata BLM21AG121SN1D is a high-performance ferrite bead engineered for effective EMI suppression in modern electronic circuits. Its primary function is to attenuate unwanted high-frequency noise by presenting a significant impedance at specific frequencies, thereby safeguarding sensitive signal paths. A critical design consideration when employing ferrite beads is the trade-off between impedance at the target frequency and DC resistance; while the BLM21AG121SN1D offers a robust 120 Ohms at 100 MHz, its 100mOhm DC resistance ensures minimal voltage drop and power dissipation under load, crucial for power integrity in high-current applications.

Key Features

  • Impedance: 120 Ohms @ 100 MHz
  • Current Rating (Max): 800mA
  • DC Resistance (DCR) (Max): 100mOhm
  • Operating Temperature: -55°C to 125°C
  • Package / Case: 0805 (2012 Metric)
  • Dimensions: 2.00mm x 1.25mm x 1.05mm

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

  • High-frequency signal line filtering in mobile device RF front-ends.
  • Power supply decoupling for sensitive analog circuitry.
  • EMI mitigation for high-speed digital interfaces (e.g., USB, HDMI).
  • Noise suppression in automotive electronic control units (ECUs).
 
 
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