VBF-1445+

Overview

The VBF-1445+ is a bandpass filter manufactured by Mini-Circuits, designed for RF signal conditioning applications. It features an internal LTCC structure to ensure repeatable performance across operating conditions. The component operates with a center frequency of 1445 MHz and provides a bandwidth of 50 MHz, covering the range from 1420 MHz to 1470 MHz. It maintains a characteristic impedance of 50 Ohms and exhibits a typical insertion loss of 2.0 dB. The filter utilizes SMA connectors for in-line mounting and is housed in a compact coaxial package measuring approximately 1.43 inches in length.

Feature Summary

• Constructed using internal LTCC technology for high performance repeatability
• Provides good close-in rejection characteristics
• Features versatile small size with coaxial SMA interface

Applications

• RF signal conditioning systems
• Wireless communication infrastructure
• Test and measurement equipment

Procurement Notes

Verify the specific datasheet version when sourcing, as Mini-Circuits documentation may vary slightly between distributors. Confirm that the SMA connector orientation matches your system requirements. Ensure the LTCC construction aligns with your thermal management needs. Cross-reference the part number suffix plus sign to confirm RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this component when a fixed center frequency of 1445 MHz is required with a narrow 50 MHz bandwidth. The LTCC construction offers advantages in size and consistency compared to discrete designs. Consider the 2.0 dB typical insertion loss impact on system gain budget. The coaxial form factor simplifies integration into existing RF chains without complex mounting hardware.

Part Context

This model belongs to Mini-Circuits' VBF series of bandpass filters. The series utilizes Low Temperature Co-fired Ceramic (LTCC) technology to achieve miniature sizes and high repeatability. Similar models in the lineup include the BFCN-1445+, which shares the same frequency specifications but may differ in physical construction details such as layer count or housing style.

Replacement Considerations

The BFCN-1445+ is a confirmed substitute part number within the Mini-Circuits portfolio. Both components share the same 1445 MHz center frequency and 50 MHz bandwidth specifications. Verify mechanical compatibility before replacement, as packaging differences may exist between the VBF and BFCN series.