BPF-A1140+

Overview

The BPF-A1140+ is a surface-mount bandpass filter from Mini-Circuits, designed using lumped LC technology within a shielded case. It operates with a center frequency of 1.14 GHz and provides a bandwidth of 600 MHz, covering the range from 840 MHz to 1440 MHz. The component features a 50Ω impedance and utilizes SMT termination for PCB integration. It supports an RF input power range of 0.08W to 5W and functions reliably within an operating temperature range of -40°C to +85°C.

Feature Summary

• Utilizes lumped LC technology for signal filtering within a miniature shielded package
• Provides wide bandwidth coverage with enhanced out-of-band rejection capabilities
• Features aqueous washable construction suitable for robust manufacturing processes

Applications

• Harmonic rejection in RF circuits
• Transmitter and receiver signal conditioning
• Industrial microwave and RF systems
• Telecommunication and broadband networks

Procurement Notes

Verify the specific part number suffix against official Mini-Circuits documentation to ensure correct impedance and tolerance specifications. Confirm that the shielded SMD package dimensions align with the target PCB layout constraints. Ensure environmental ratings meet the operational temperature requirements of the final assembly. Cross-reference datasheet electrical parameters with system interface needs before procurement.

Selection Notes

Select this component when a wide 600 MHz bandwidth centered at 1.14 GHz is required for signal integrity. The 50Ω impedance matches standard RF transmission lines. Consider the shielded SMD form factor for compact designs requiring high isolation. Verify that the 5W maximum input power rating exceeds the system's peak signal levels to prevent damage.

Part Context

This component belongs to the BPF series of surface-mount bandpass filters manufactured by Mini-Circuits. The series employs lumped LC technology to deliver high performance in a miniaturized footprint. These filters are engineered to pass specific frequency bands while rejecting unwanted signals, serving as fundamental passive RF devices for various communication and measurement applications.

Replacement Considerations

Consult Mini-Circuits official substitution guides for verified alternatives. Ensure any replacement maintains the 1.14 GHz center frequency and 600 MHz bandwidth. Verify compatibility with 50Ω systems and SMD mounting requirements.