phone [301] 695-9400 ? fax [301] 695-7065 ? rfce ramics@skyworksinc.com ? www.skyworksinc.com 203830e ? trans-tech proprietary informatio n ? products and pr oduct information are subject to change without notice ? a ugust 24, 2017 1 data sheet basic dielectric materialsbulk microwave dielectrics skyworks, through its wholly owned subsidiary trans-tech, offers a broad range of ceramic materials that are not characterized for resonator applications, but for bulk, miscellaneous shapes, or substrates. typical applications include patch antenna substrates, matching structures for circulators and isolators, and miscellaneous support structures. because such applications are non-resonant, temperature coefficient of resonant frequency does not apply. we list the temperature-dependent coefficients of dielectric constant and linear expansion. the magnesium aluminum titanate (smat) and magnesium calcium titanate (mct) series are notably easier to machine than most microwave ceramics, and may be more suitable for applications requiring precision machining. d-4, or corderite, is a very hard ceramic noted for its low temperature coefficient of expansion which approaches the metal alloy invar. it is not suitable for substrates. it is occasionally used for dielectric resonator supports due to its low dielectric constant and/or low thermal expansion rate. temperature-stable dielectrics can be found in the temperature stable materials catalog. please call for a catalog. bars and rods are available for all material types. contact us for custom sizes and shapes. basic dielectrics composition and type number dielectric constant ( ? ' ) dielectric loss tangent (e'/ ? ") temperature coefficient dielectric constant (c -1 ) (nominal value) temperature coefficient of thermal expansion (c -1 ) (nominal value) thermal conductivity (cal/cm 2 /cm/sec/c) (c -1 ) (nominal value) density (g/cm 3 ) (nominal value) water absorption (%) (nominal value) d-4 cordierite 4.5 0.2 @ 9.4 ghz < 0.0002 +55 x 10 -6 2.00 x 10 -6 0.007 2.45 C ds-6 forsterite 6.3 0.3 @ 9.4 ghz < 0.0002 +107 x 10 -6 10.00 x 10 -6 0.009 2.89 0.6 d-15 mg-ti 15.0 0.5 @ 9.4 ghz < 0.0002 +98 x 10 -6 7.50 x 10 -6 0 3.5 C d-16 mg-ti 16.0 0.5 @ 9.4 ghz < 0.0002 +98 x 10 -6 7.50 x 10 -6 0.01 3.6 0 d-38 ba-ti 37.0 5% @ 6.0 ghz < 0.0005 -25 x 10 -6 9.40 x 10 -6 0.01 4.4 0.3 d-50 ba-ti 50.0 5% @ 6.0 ghz < 0.0005 -250 x 10 -6 7.50 x 10 -6 0.01 4.35 C d-100 titania 100.0 5% @ 6.0 ghz < 0.0010 -575 x 10 -6 7.50 x 10 -6 0.01 3.9 0.1 magnesium aluminum titanate composition and type number dielectric constant ( ? ' ) dielectric loss tangent (e'/ ? ") temperature coefficient dielectric constant (c -1 ) (nominal value) temperature coefficient of thermal expansion (c -1 ) (nominal value) thermal conductivity (cal/cm 2 /cm/sec/c) (c -1 ) (nominal value) density (g/cm 3 ) (nominal value) water absorption (%) (nominal value) smat-9 9.0 0.3 @ 9.4 ghz <.00015 +100 x 10 -6 7.5 x 10 -6 0.025 3.46 0.1 smat-9.5 9.5 0.3 @ 9.4 ghz <.00015 +100 x 10 -6 7.5 x 10 -6 0.025 3.46 0.1 smat-10 10.0 0.5 @ 9.4 ghz <.00015 +100 x 10 -6 7.5 x 10 -6 0.025 3.46 0.1 smat-11 11.0 0.5 @ 9.4 ghz <.00015 +100 x 10 -6 7.5 x 10 -6 0.025 3.46 0.1 smat-12 12.0 0.5 @ 9.4 ghz <.00015 +100 x 10 -6 7.5 x 10 -6 0.025 3.46 0.1 smat-13 13.0 0.5 @ 9.4 ghz <.00015 +100 x 10 -6 7.5 x 10 -6 0.025 3.46 0.1 smat-14 14.0 0.5 @ 9.4 ghz <.00015 +100 x 10 -6 7.5 x 10 -6 0.025 3.46 0.1 downloaded from: http:///
data sheet ? basic dielectric materials phone [301] 695-9400 ? fax [301] 695-7065 ? rfce ramics@skyworksinc.com ? www.skyworksinc.com 2 august 24, 2017 ? trans-tech proprietary information ? products and product information are subj ect to change without not ice ? 203830e magnesium calcium titanate composition and type number dielectric constant ( ? ' ) dielectric loss tangent (e'/ ? ") temperature coefficient dielectric constant (c -1 ) (nominal value) temperature coefficient of thermal expansion (c -1 ) (nominal value) thermal conductivity (cal/cm 2 /cm/sec/c) (c -1 ) (nominal value) density (g/cm 3 ) (nominal value) water absorption (%) (nominal value) mct-18 18.0 3% @ 9.4 ghz <.0015 -70 x 10 -6 8.40 x 10 -6 0.01 3.47 0.1 mct-20 20.0 5% @ 9.4 ghz ? .0004 -130 x 10 -6 8.60 x 10 -6 0.01 3.5 0.1 mct-25 25.0 5% @ 9.4 ghz <.0015 -245 x 10 -6 8.90 x 10 -6 0.01 3.54 0.1 mct-30 30.0 5% @ 9.4 ghz ? .0010 -370 x 10 -6 9.20 x 10 -5 0.01 3.59 0.1 mct-40 40.0 5% @ 6.0 ghz <.0015 -580 x 10 -6 9.50 x 10 -6 0.01 3.62 0.1 mct-50 50.0 5% @ 6.0 ghz <.0015 -730 x 10 -6 9.70 x 10 -6 0.01 3.65 0.1 mct-55 55.0 5% @ 6.0 ghz <.0015 -800 x 10 -6 9.80 x 10 -6 0.01 3.68 0.1 mct-70 70.0 5% @ 6.0 ghz <.0015 -960 x 10 -6 10.0 x 10 -6 0.01 3.7 0.1 mct-85 85.0 5% @ 6.0 ghz <.0015 -1070 x 10 -6 10.1 x 10 -6 0.01 3.75 0.1 mct-100 100.0 5% @ 6.0 ghz <.0015 -1120 x 10 -6 10.3 x 10 -6 0.01 3.78 0.1 mct-115 125.0 5% @ 6.0 ghz <.0015 -1120 x 10 -6 10.4 x 10 -6 0.01 3.8 0.1 mct-125 125.0 5% @ 6.0 ghz <.0015 -1200 x 10 -6 10.7 x 10 -6 0.01 3.85 0.1 MCT-140 140.0 10% @ 6.0 ghz <.0015 +1180 x 10 -6 10.5 x 10 -6 0.01 3.83 0.1 copyright ? 2010, 2016, 2017 trans-tech inc., all rights reserved. information in this document is provided in connection with trans-tech, inc. 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