Product Overview
The BLM18PG121SN1D is a ferrite bead chip inductor from Murata Electronics, designed for noise suppression in high-frequency circuits. With an impedance of 120Ω at 100MHz and packaged in a compact 0603 (1608 metric) size, this ferrite bead provides effective EMI filtering on power supply lines and signal lines. Its high DC current rating of 2A and low DC resistance of 0.06Ω make it particularly suitable for power line noise suppression in high-current applications.
Key Specifications
| Parameter | Value |
| Manufacturer | Murata Electronics |
| Impedance @ 100MHz | 120Ω (typ) |
| DC Resistance | 0.06Ω max |
| Rated Current | 2A |
| Package / Case | 0603 (1608 Metric) 1.6 x 0.8 x 0.8mm |
| Operating Temperature | -55°C to +125°C |
| Dielectric / Material | Ferrite (Ni-Zn) |
| Self-Resonant Freq | Approx. 150MHz |
| Impedance @ 1GHz | 180Ω (typ) |
| Termination | Nickel barrier + Tin plating |
Features
- High impedance at high frequencies for effective noise suppression
- Low DC resistance for minimal power loss
- High rated current (2A) suitable for power lines
- Compact 0603 package for space-saving designs
- Wide operating temperature range
- RoHS compliant and lead-free
- Monolithic structure for high reliability
- Excellent solderability and solder heat resistance
- Consistent impedance characteristics
Applications
- Power supply line noise filtering
- DC-DC converter output noise suppression
- High-speed signal line EMI filtering
- Consumer electronics and mobile devices
- Industrial equipment and automotive electronics
- Digital circuits and microprocessor power rails