Model No: BLM15AG121SN1D
Murata Electronics BLM15AG121SN1D
Manufacturer: Murata Electronics
SEMICON NO.: BLM15AG121SN1D
Package: 0402 (1005 Metric)
Stock: In stock
Description: Chip Ferrite Bead 550mA 190mOhm
SEMICON NO.: BLM15AG121SN1D
Package: 0402 (1005 Metric)
Stock: In stock
Description: Chip Ferrite Bead 550mA 190mOhm
Quantity :
| Mfr | Murata Electronics |
| Product Series | EMIFIL® / BLM15AG Series |
| Device Type | Chip Ferrite Bead |
| Height (Max) | 0.55 mm |
| Number of Lines | 1 |
| Impedance (@ 100 MHz) | 120 Ω |
| Impedance Tolerance | ±25% |
| Test Frequency | 100 MHz |
| DC Current Rating | 550 mA (Max) |
| DC Resistance (DCR) | 190 mΩ (Max) |
| Operating Temperature | -55°C to +125°C |
| Package | 0402 (1005 Metric) |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
BLM15AG121SN1D 120Ω 500mA Chip Ferrite Bead
The BLM15AG121SN1D is a high‑performance surface‑mount chip ferrite bead from Murata's EMIFIL BLM15AG series, engineered for suppressing high‑frequency electromagnetic interference (EMI) in general signal lines and power circuits. Packaged in a compact 0402 (1.0×0.5×0.5mm) form factor, it delivers a 120Ω impedance at 100MHz with a ±25% tolerance, a maximum DC resistance (DCR) of 190mΩ, and a rated current of up to 500mA (peak 550mA), ensuring efficient noise attenuation while minimizing signal distortion. Built with a high‑quality ferrite core and nickel‑barrier external electrodes, this bead offers excellent solder heat resistance, reliability, and compliance with RoHS standards, making it ideal for cost‑effective, space‑constrained noise suppression in consumer, industrial, and portable electronic devices.
BLM15AG121SN1D Features and Application Scenarios
This ferrite bead provides effective EMI suppression across 30MHz to several hundred MHz, reducing high‑frequency noise and resonance without requiring a ground connection, thus suiting circuits with unstable grounding. Its low DCR minimizes power loss and voltage drop, while the compact 0402 package enables high‑density PCB layouts. Operating reliably from −55°C to +125°C, it supports harsh industrial and automotive environments. Core applications include power supply lines, digital circuits, RF modules, portable electronics (smartphones, tablets), consumer appliances, industrial control systems, and automotive electronics, wherever high‑frequency noise filtration and signal integrity preservation are critical.
Alternative EMI filter Models
1. 0402FB‑120‑500 (TDK): 120Ω@100MHz, 500mA, 0402 ferrite bead with low DCR, ideal for direct replacement in general noise suppression circuits.
2. FB1005‑121 (Samsung Electro‑Mechanics): 120Ω@100MHz, 500mA, 0402 bead offering comparable EMI performance for consumer and portable electronics.
3. MF1005‑120 (Laird): 120Ω@100MHz, 500mA, 0402 ferrite bead with high thermal stability for industrial and automotive applications.
4. BFB1005‑121 (Yageo): 120Ω@100MHz, 500mA, 0402 bead with low DCR and excellent solderability, suitable for high‑density PCB designs.
5. EMI1005‑120 (Würth Elektronik): 120Ω@100MHz, 500mA, 0402 ferrite bead providing reliable noise filtering for digital and RF circuits.
The BLM15AG121SN1D is a high‑performance surface‑mount chip ferrite bead from Murata's EMIFIL BLM15AG series, engineered for suppressing high‑frequency electromagnetic interference (EMI) in general signal lines and power circuits. Packaged in a compact 0402 (1.0×0.5×0.5mm) form factor, it delivers a 120Ω impedance at 100MHz with a ±25% tolerance, a maximum DC resistance (DCR) of 190mΩ, and a rated current of up to 500mA (peak 550mA), ensuring efficient noise attenuation while minimizing signal distortion. Built with a high‑quality ferrite core and nickel‑barrier external electrodes, this bead offers excellent solder heat resistance, reliability, and compliance with RoHS standards, making it ideal for cost‑effective, space‑constrained noise suppression in consumer, industrial, and portable electronic devices.
BLM15AG121SN1D Features and Application Scenarios
This ferrite bead provides effective EMI suppression across 30MHz to several hundred MHz, reducing high‑frequency noise and resonance without requiring a ground connection, thus suiting circuits with unstable grounding. Its low DCR minimizes power loss and voltage drop, while the compact 0402 package enables high‑density PCB layouts. Operating reliably from −55°C to +125°C, it supports harsh industrial and automotive environments. Core applications include power supply lines, digital circuits, RF modules, portable electronics (smartphones, tablets), consumer appliances, industrial control systems, and automotive electronics, wherever high‑frequency noise filtration and signal integrity preservation are critical.
Alternative EMI filter Models
1. 0402FB‑120‑500 (TDK): 120Ω@100MHz, 500mA, 0402 ferrite bead with low DCR, ideal for direct replacement in general noise suppression circuits.
2. FB1005‑121 (Samsung Electro‑Mechanics): 120Ω@100MHz, 500mA, 0402 bead offering comparable EMI performance for consumer and portable electronics.
3. MF1005‑120 (Laird): 120Ω@100MHz, 500mA, 0402 ferrite bead with high thermal stability for industrial and automotive applications.
4. BFB1005‑121 (Yageo): 120Ω@100MHz, 500mA, 0402 bead with low DCR and excellent solderability, suitable for high‑density PCB designs.
5. EMI1005‑120 (Würth Elektronik): 120Ω@100MHz, 500mA, 0402 ferrite bead providing reliable noise filtering for digital and RF circuits.
