The BLM18PG121SN1D is a high-quality SMD ferrite bead manufactured by Murata Manufacturing Co., Ltd. Belonging to the EMIFIL BLM18PG series, this chip ferrite bead features an impedance of 120Ω at 100MHz, an impedance tolerance of ±25%, and a rated current of 2A, providing effective high-frequency noise suppression and electromagnetic interference (EMI) filtering for DC power supply circuits.
Designed in a compact 0603 (1608 Metric) package, the BLM18PG121SN1D supports high-density PCB layouts and automated surface-mount assembly. With a maximum initial DC resistance of 50mΩ, it helps minimize voltage drops and power losses while suppressing unwanted high-frequency noise in electronic power lines.
The device operates over a temperature range of -55°C to +125°C. Its rated current is 2A at an ambient temperature of 85°C and 1A at 125°C, making it suitable for applications requiring effective power line noise filtering.
Key Features:
- Manufacturer: Murata Manufacturing Co., Ltd.
- Part Number: BLM18PG121SN1D
- Product Series: EMIFIL BLM18PG Series
- Product Type: SMD Ferrite Bead
- Filter Type: DC Power Line EMI Filter
- Impedance: 120Ω at 100MHz
- Impedance Tolerance: ±25%
- Rated Current: 2A at 85°C
- Derated Current: 1A at 125°C
- Maximum Initial DC Resistance (DCR): 50mΩ
- Package Size: 0603 (1608 Metric)
- Dimensions: 1.6 × 0.8 × 0.8mm (Nominal)
- Operating Temperature: -55°C to +125°C
- Number of Circuits: 1
- Mounting Type: Surface Mount (SMD/SMT)
- Packaging: Tape and Reel
- Standard Reel Quantity: 4,000 Pieces
- RoHS Compliance: RoHS Compliant
Typical Applications:
- DC power supply noise filtering
- EMI and high-frequency noise suppression
- Power management circuits
- Consumer electronic devices
- Industrial automation and control systems
- Communication and networking equipment
- Embedded electronic systems
- High-density PCB assemblies
The Murata BLM18PG121SN1D combines effective high-frequency noise suppression, low DC resistance, and a compact 0603 package. Its 2A rated current capability and power-line filtering characteristics make it a practical solution for electronic manufacturers, design engineers, and component procurement professionals seeking reliable EMI suppression components.
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