The Lambda/TDK LB725FM is an EMI filter engineered to suppress conducted and radiated electromagnetic interference across electronic systems. It addresses both differential mode and common mode noise—critical performance factors in switch-mode power supplies and devices operating in electromagnetically complex environments. This filter enables compliance with EMC standards and ensures reliable operation where electromagnetic compatibility is essential.
Technical Specifications
• Product Type: EMI Filter
• Manufacturer: Lambda / TDK
• Model: LB725FM
• Noise Suppression: Differential mode and common mode attenuation
• Input Voltage Range: 250V single-phase or 500V three-phase (TDK-Lambda R Series reference)
• Current Ratings: 0.5A to 300A (TDK-Lambda R Series reference)
• Frequency Coverage: Up to 30 MHz for conducted emissions
– Key Features
• Dual-mode noise filtering (differential and common mode)
• Meets IEC 61000, EN 55011, and EN 55022 emission and immunity standards
• CE marking and UL/CSA certification support
• Medical-grade leakage current versions available for regulated applications
• Short circuit current rating (SCCR) compliance for industrial control panel integration per UL508A
– Typical Applications
• Industrial control and automation systems
• Medical device EMI suppression
• Automotive electronics
• Telecommunications equipment
• Any electronically controlled system requiring conducted EMI mitigation
– Compatibility & Integration
DIN rail mounting (up to 30A) and chassis mounting options support flexible integration into industrial panels, cabinets, and distributed power architectures. Product documentation, including datasheets, manuals, and application notes, is available through TDK-Lambda’s technical library.
