PETERMANN-TECHNIK GmbH Lechwiesenstr. 13 D-86899 Landsberg am Lech Fon: +49/8191/305395 Fax: +49/8191/305397 www.petermann-technik.com [email protected] ISO 9001:2008 SAPPHIRE WINDOW FEATURES High reliability for low cost Excellent optical transmittance High hardness Top wear resistance GENERAL DATA TYPE PTSW2520 +0 ɸ2.50 -0.05 DIAMETER PTSW3520 ɸ3.50 PTSW2530 +0 -0.05 ɸ4.50 +0 -0.05 DIMENSIONS THICKNESS 0.28 ± 0.01 CHAMFERING ORIENTATION OF THE MAIN SURFACE ORIENTATION PERPENDICULARITY OF THE OPTICAL AXIS TO THE MAIN SURFACE PARALLELISM SURFACE CONDITION FLATNESS PACKAGE OTHER ɸ18.29 +0 -0.02 x +0 15.75 -0.02 0.51 ± 0.01 0.2 x 45° Edge Chamfering C-plane (0001) 0±30' SURFACE DEFECTS MATERIAL QUALITY 0.30 ± 0.01 PTSW1815 <1' <1' N<2 N<2 20/10 20/10 High purity monocrystal AI2O3 Packed under the clean room environment Specification can be customized CRYSTALS CERAMIC FILTERS OSCILLATORS SAW COMPONENTS CERAMIC RESONATORS Premium Quality by PETERMANN-TECHNIK Spec.01 • REV.00 • January 2014