BNX028-01L: High-Performance LC Low-Pass Filter by Murata Electronics | Features & Applications
BNX028-01L: High-Performance LC Low-Pass Filter by Murata Electronics
The BNX028-01L is a premium-grade LC low-pass filter engineered by Murata Electronics, a global leader in electronic component innovation. Designed for mission-critical EMI/RFI suppression, this 5th-order filter delivers exceptional signal integrity with 35dB attenuation across 30kHz 1GHz. With its 20A current rating and compact SMD footprint, it's the ideal solution for modern high-density electronics.
In-Depth Technical Analysis
Advanced Filter Architecture
- 5th-Order LC Network: Provides steeper roll-off (-100dB/decade) compared to standard 2nd-order filters, ensuring superior high-frequency noise rejection
- Dual-Stage Filtering: Combines -type and T-type circuits for enhanced common-mode and differential-mode noise suppression
- Low Insertion Loss: <0.5dB in passband maintains signal strength while blocking interference
Enhanced Electrical Performance
| Parameter | Value | Advantage |
|---|---|---|
| Attenuation | 35dB @ 1GHz | Effective noise suppression in 5G/WiFi bands |
| Current Rating | 20A continuous | Handles power lines in IoT devices |
| DC Resistance | 0.43m | Minimal voltage drop at full load |
Design Advantages
Space-Efficient Packaging
The J-Lead 4-SMD package (12.1 9.1 3.7mm) features: - Automated Placement Friendly: 0.2mm pick-and-place tolerance - Thermal Relief Pads: Prevents tombstoning during reflow - Moisture Sensitivity Level 3: 168 hours floor life at <30 C/60% RH
Robust Environmental Specs
- Wide Temp Range: -40 C to +105 C operation (AEC-Q200 qualified)
- Vibration Resistant: Withstands 20G @ 10 2,000Hz (MIL-STD-202)
- Flame Retardant: UL94 V-0 compliant epoxy molding
Industry Applications
Mobile Electronics
5G smartphone power management Tablet display driver circuits Wearable device charging systems
Automotive Systems
EV battery management (ISO 7637-2 compliant) Infotainment CAN bus protection ADAS camera module filtering
Industrial Solutions
PLC I/O module protection Medical device signal conditioning Drone motor controller noise suppression
Competitive Advantages
Compared to similar filters (TDK MPI Series, Taiyo Yuden NFE61C), the BNX028-01L offers: 1. Higher Current Density: 20A in 110mm vs competitors' 15A 2. Lower DC Resistance: 0.43m vs industry average 0.8m 3. Extended Frequency Range: 1GHz attenuation vs typical 500MHz
Design Resources
Murata provides: - SPICE Models: For circuit simulation in Altium/Cadence - 3D STEP Files: Mechanical integration guides - Application Notes: EMI filter design best practices (AN-0001-EMC)
Purchasing Information
Available through: Authorized distributors (Digi-Key, Mouser) Tape-and-reel packaging (2,000 units/reel) Sample requests via Murata website
Upgrade your design with the BNX028-01L's unmatched combination of high-current capability, space savings, and professional-grade EMI suppression contact our technical sales team today for customized solutions.