GSF-75 45R12B | 45MHz 4 pole crystal filter with 12.0kHz 3dB bandwidth

Product Description

The 45R12B with centre frequency of 45.0MHz packs four poles within just one miniature surface mount package measuring just 7.2 x 5.2mm. Advanced space-saving tehcnology means compared with traditional two-package four-pole filters ths 45R12B can offer the engineer much greater board space for their design. With passband bandwidth of 12kHz at 3dB, the 45R12B also has low insertion loss of only 3.0dB and has guarenteed attenuation of -90±10 @ 80dB. Low in-band ripple of only 1.0dB ensures high signal fidelity.

Specifications

Centre frequency	45.0MHz
Dimensions	7.2 x 5.2 x 1.5mm
Operating temperature range	-20 to +70°C
Number of poles	4
Pass band	-3dB @ ±6.0kHz min
Attenuation band	-30dB @ ±20.0kHz max
In-band ripple	1.0dB max
Insertion loss	3.0dB max
Guaranteed attenuation	-80dB max -910 ±10kHz
Termination	950Ω // 1.2pF
Coupling capacitance (C_C)	8.0pF
Number of units	1

Package Drawing

Package footprint and configuration drawing for a 7050 6-pad Golledge 4-pole Crystal Filter showing full dimensions.

Ordering Information

To request a quotation for the GSF-75 45R12B please use the configurable options form to choose the options you require and then submit your configured product to our team. Our expert advisers are always happy to help with your requirements and can be contacted on +44 1460 256 100 or at sales@golledge.com.

Following product selection you will be issued with a seven character Golledge part number. Your Golledge part number is the internationally accepted Golledge manufacturing part number (MPN) that should be used for all project documentation, including bills of materials (BoMs) and purchase orders.

If you have any queries regarding any of our documentation our dedicated sales team will be happy to help.