Varactors fit low voltage systems.

Press Release Summary:

Series ZV950 hyperabrupt varactor diodes offer tuning range of 0.5 to 2.5 V, meeting requirements of 3 V frequency control and filtering systems. Characterized by close tolerance C-V curves, units provide high Q operation at reverse voltage as low as 0.5 V. Leakage current is typically 10 pA. For bias voltage of 0.5 V and frequency of 1 MHz, nominal capacitances of ZV950, ZV952, and ZV953 are 9.5 pF, l9 pF, and 45 pF respectively. Units come in miniature SOD 523 package.

Original Press Release:

Varactors Fit Low Voltage Systems

Hauppauge, New York... Offering a tuning range of 0.5V to 2.5V, the new Zetex ZV950 series of hyperabrupt varactor diodes is designed to meet the requirements of 3 volt frequency control and filtering systems.

Characterized by close tolerance C-V curves, these new varactors provide high Q operation at a reverse voltage as low as 0.5V. Typically 10pA, the low leakage current of these devices insures excellent phase noise performance.

These low voltage varactors are available in the miniature SOD 523 package. For a bias voltage of 0.5V and frequency of 1MHz, nominal capacitances of the ZV950, ZV952 and ZV953 are 9.5 pF, l9pF and 45pF respectively. For close tuner matching requirements, Zetex has also introduced a dual common cathode variant. Having the same characteristics as the ZV953, the ZMDC953 offers two low voltage varactors in a single SOT package.

Zetex ZV950 series varactors are ideal for crystal oscillator temperature stabilizing circuits, the loop and filter sections of phase lock loops, and any product design containing frequency control and filtering functions.

The 3,000 piece price is $0.285 each. Delivery is quoted at 4-6 weeks in production volumes.

For further information:

Neil Chadderton, Zetex Inc., 700 Veterans Memorial Highway, Hauppauge, NY 11788

Tel: 631-360-2222

Fax; 631-360-8222



Zetex designs and manufactures high performance semiconductor solutions for analog signal processing and the management of power in automotive, communications, consumer and industrial electronics.

Meeting the demand for greater power economy, precision and speed in analog circuit design, the broad Zetex product range comprises application specific linear ICs and discrete semiconductor devices in multiple package configurations.

As a specialist in analog technology, Zetex offers a diverse series of ICs that includes audio and video amplifiers and dc-dc converters. Its discrete component range features trench MOSFETs, bipolar transistors and diodes.

Headquartered near Manchester in the UK, Zetex has manufacturing and sales operations in Asia, Europe and the USA, and is supported by distributors in more than 45 countries ( The company is a wholly owned subsidiary of Telemetrix plc.

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