gc1700a ? gc1720 microsemi microwave products 75 technology drive, lowell, ma. 01851, 978-442-5600, fax: 978-937-3748 page 1 control devices 60 volt abru p t junction tunin g varactors tm ? www. microsemi .com rohs com p liant description the gc1700 series varactors are silicon abrupt junction devices. they offer the highest q and lowest series resistance available in a 60 volt silicon varactor. this series of diodes meets rohs re quirements per eu directive 2002/95/ec. the standard terminal finish is gold unle ss otherwise specified. consult the factory if you have special requirements. applications the gc1700 series varactors are used for moderate bandwidth tuning. they are available in values appropriate for vhf through ku band frequencies. these devices are best used in low phase noise voltage controlled oscillators, low loss voltage variable filters and phase shifters. additionally, due to their higher v b , they offer superior, low imd performance over lower voltage types. standard capacitance tolerance is 10%. other capacitance values and custom mechanical configurations are also availabl e. all specifications shown are based on style 30 package and include 0.18 pf case capacitance. consult package outline section of this catalog for other case styles available. complete electrical and mechanical data are also provided. absolute maximum ratings at 25o c (unless otherwise specified) rating symbol value unit minimum breakdown voltage @10 ua v b 60 v maximum leakage current @55 volts i r 0.02 @ 25 oc 2.0 @125 oc ua operating temperature t op -55 to +125 oc storage temperature t stg -65 to +150 oc thermal coefficient of capacitance @4 volts t cc 300 ppm/ oc important: for the most current data, consult microsemi ?s website: www.microsemi.com specifications are subject to change, consult the factor y for further information. these devices are esd sensitive and must be handled use using esd precautions. key features ? highest q for 60 volt varactors ? lowest r s ? large selection of capacitance values to chose from ? low phase noise ? rohs compliant 1 1 most or our devices are supplied with gold plated terminations. other terminal finishes are available on request. consult factory for details. applications/benefits ? vhf to ku band tuning ? vvf (voltage variable filters) ? phase shifters gc1700a ? gc1720 copyright ? 2006 rev: 2009-01-19
gc1700a ? gc1720 microsemi microwave products 75 technology drive, lowell, ma. 01851, 978-442-5600, fax: 978-937-3748 page 2 control devices 60 volt abru p t junction tunin g varactors tm ? www. microsemi .com rohs com p liant electrical characteristics @ 25o c model number c t -4 + / - 10% quality factor 3 (min) capacitance ratio 2 (min) (note 2) @ -4v (pf) @-4v, 50 mhz c t0 / c t-60 gc1700a ? 00 0.6 2200 4.5 gc1700 0.8 2100 4.6 gc1701 1.0 2000 4.8 gc1702 1.2 1800 5.0 gc1703 1.5 1800 5.3 gc1704 1.8 1700 5.5 gc1705 2.2 1700 5.8 gc1706 2.7 1600 5.9 gc1707 3.3 1600 6.0 gc1708 3.9 1400 6.0 gc1709 4.7 1400 6.5 gc1710 5.6 1400 6.5 gc1711 6.8 1300 6.5 gc1712 8.2 1300 7.0 gc1713 10.0 1200 7.0 gc1714 12.0 1200 7.0 gc1715 15.0 1100 7.0 gc1716 18.0 1000 7.0 gc1717 22.0 1000 7.0 gc1718 27.0 900 7.0 gc1719 33.0 800 7.0 gc1720 39.0 800 7.0 notes 1) when ordering, specify the desired case style suffix to the model. (eg. gc1701 ? 30) 2) capacitance values include a pack age capacitance of 0.18 pf. capacitance is measures at f = 1 mhz. 3) q is calculated from: a. q = 1 44 2/ cjfrs ? b. rs is measured using @ 1 ghz using transmission loss techniques. c. capacitances is measured at 1 mhz. e e l l e e c c t t r r i i c c a a l l s s copyright ? 2006 rev: 2009-01-19
gc1700a ? gc1720 microsemi microwave products 75 technology drive, lowell, ma. 01851, 978-442-5600, fax: 978-937-3748 page 3 control devices 60 volt abru p t junction tunin g varactors tm ? www. microsemi .com rohs com p liant typical cj vs reverse bias notes - c hip dimensions vary by product - o ther package styles available on request - c onsult factory for details style 00 style 30 g g r r a a p p h h s s copyright ? 2006 rev: 2009-01-19
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