CBP4 Series Ceramic Bandpass Filters

Mini-Circuits bandpass filters provide RF filtering with ceramic resonator technology in compact SMA-connector packages

Image of Mini-Circuits CBP4 Series Ceramic Bandpass FiltersThe CBP4 series from Mini-Circuits features high-performance ceramic bandpass filters designed for RF and microwave signal filtering in demanding environments. These filters use advanced ceramic resonator technology to deliver narrow passbands, low insertion loss, and strong out-of-band rejection, making them ideal for wireless communication, aerospace, defense, and test and measurement systems. Each CBP4 model is housed in a rugged SMA-connector package, ensuring easy integration and long-term reliability. With tight frequency tolerance, RoHS compliance, and customizable center frequencies, the CBP4 family offers a scalable solution for engineers seeking precision RF filtering in compact form factors.

Whether designing for 5G infrastructure, satellite uplinks, or military-grade RF systems, the CBP4 series delivers the performance, stability, and selectivity required for modern RF front-end architectures.

Features
  • Ceramic resonator design for sharp frequency selectivity
  • Narrow bandwidths with steep roll-off characteristics
  • Low insertion loss and high stopband attenuation
  • SMA-connector package for easy system integration
 
  • Compact, durable, and thermally stable construction
  • RoHS compliant and lead-free
  • Available in standard and custom frequency configurations
  • Ideal for high-reliability RF and microwave applications
Applications
  • Wireless base stations and 5G infrastructure
  • Satellite communication systems
  • Aerospace and defense RF modules
  • Test and measurement instrumentation
 
  • RF front-end filtering and signal isolation
  • Interference mitigation in high-density RF environments
  • Secure communications and telemetry systems

CBP4 Series Ceramic Bandpass Filters

ImageManufacturer Part NumberDescriptionFrequencyAvailable QuantityPriceView Details
RF FILTER BANDPASS 3.18GHZ 11SMDCBP4-3180AG+RF FILTER BANDPASS 3.18GHZ 11SMD3.18GHz Center23 - Immediate$68.51View Details
CER FILTER 836MHZ BAND PASSCBP4-836C+CER FILTER 836MHZ BAND PASS836MHz Center10 - Immediate$38.53View Details
CER FILTER 942MHZ BAND PASSCBP4-942C+CER FILTER 942MHZ BAND PASS942MHz Center3 - Immediate$40.87View Details
New at DigiKey
CERAMIC BPF, 2950-3050 MHZ, 50
CBP4-A3G+CERAMIC BPF, 2950-3050 MHZ, 503GHz Center15 - Immediate$70.68View Details
New at DigiKey
CERAMIC BPF, 3450-3550 MHZ, 50
CBP4-A3R5G+CERAMIC BPF, 3450-3550 MHZ, 503.5GHz Center7 - Immediate$70.68View Details
Published: 2025-07-24