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Total Frequency Control News ....

TFC’s Highly Reliable Quartz Filters - October 2014

TFC monolithic crystal filters feature excellent selectivity, small insertion loss and very high reliability. Standard and custom designs are available as discrete and package units.

The range includes standard 10.70MHz, 21.40MHz, 45MHz fundamental and third overtone designs. Also six and eight pole block filters with the option of matching transformers. Quartz is the ideal resonator for selective narrow band filters providing a temperature stable, high Q resonant source, together with a low mass and small size.

Utilisation of thin-wafer technology has made it possible to produce these highly reliable filters in very small packages for various applications. Typical applications include military, testing and commercial equipment.

The correct termination of quartz filters is of prime importance to realise the high performance for each design. TFC crystal filters are 100% tested. For custom manufactured product, a test fixture representing the correct load is available. This allows verification by the customer of the load conditions by goods inwards inspection or for engineering development to correctly correlate the load conditions. Selected pairs of filters are available and also an extended working temperature range for certain filters to special order.

Please send any enquiries to sales@tfc.co.uk


 

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