CBP-1538J+

Overview

The CBP-1538J+ is a ceramic coaxial resonator bandpass filter designed for surface-mount technology. It operates with a center frequency of 1.538 GHz and provides a bandwidth of 41 MHz, covering the range from 1518 to 1559 MHz. The component features a 50 Ohm impedance and exhibits an insertion loss of 1.7 dB. Packaged in the MQ1770 SMD module format, it utilizes shielded construction to ensure signal integrity in RF applications.

Feature Summary

• Utilizes ceramic coaxial resonator technology for stable filtering performance
• Features a shielded package design to minimize external interference
• Supports surface-mount assembly for automated manufacturing integration

Applications

• Wireless communication systems requiring narrowband filtering
• RF front-end modules in mobile devices
• Industrial control equipment operating at specific microwave frequencies

Procurement Notes

Verify the exact center frequency and bandwidth specifications against the official Mini-Circuits datasheet prior to procurement. Confirm that the MQ1770 package dimensions align with your PCB layout requirements. Ensure compatibility with standard surface-mount reflow soldering processes used in your production line.

Selection Notes

Select this component when a narrow passband around 1.538 GHz is required with low insertion loss. The shielded SMT package makes it suitable for dense circuit boards where size constraints are critical. Consider the 41 MHz bandwidth relative to the signal spectrum to ensure adequate rejection of adjacent channel interference.

Part Context

This part belongs to the CBP series of coaxial-ceramic resonator filters from Mini-Circuits. These filters are engineered for applications demanding high stability and compact form factors. The series covers various frequency ranges up to 6 GHz, offering fractional bandwidths from less than 1% to 25% in low-profile designs.

Replacement Considerations

No public confirmed substitute part numbers are available for this specific model.