SPECIFICATIONS PARAMETERS RATED VOLTAGE OPERATING VOLTAGE RANGE RATED CURRENT (MAX) CAPACITANCE MINIMUM SPL @ 10 CM RESONANT FREQUENCY OPERATING TEMPERATURE STORAGE TEMPERATURE HOUSING MATERIAL TERMINAL MATERIAL WEIGHT VALUES UNITS 3 3 ~ 25 3 34,000 ± 35% Vp-p Vp-p 70 2,000 ± 500 dBA Hz °C °C - -20 ~ +105 -40 ~ +110 PBT Sn PLATED PHOSPHOR BRONZE 1.4 THIS DOCUMENT CONTAINS DATA PROPRIETARY TO PROJECTS UNLIMITED, INC. ANY USE OR REPRODUCTION, IN ANY FORM, WITHOUT PRIOR WRITTEN PERMISSION OF PROJECTS UNLIMITED, INC. IS PROHIBITED. REVISION HISTORY LTR ©2003, Projects Unlimited Inc. A DESCRIPTION DATE APPROVED RELEASED FROM ENGINEERING REVISED TO INVENTOR 3-D DRAWING TEMPLATE 7/20/2005 4/21/2008 B.R. mA pF n0.8 DETAIL "A" grams 0.4 1.2 3 n17 8.6 n4 (2) n2.5 SOUND EMISSION HOLE n1.2 (2) A 10 11 NOTES: 1. ALL DIMENSIONS ARE IN MILLIMETERS. 2. SPECIFICATIONS SUBJECT TO CHANGE OR WITHDRAWL WITHOUT NOTICE. 3. THIS PART IS RoHS 2002/95/EC COMPLIANT. UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN MILLIMETERS, TOLERANCES ARE ±0.5 AND ANGLES ARE ±3°. SIZE A3 AT-1720-TT-R.idw Designed by Date Checked by Date Approved by R.A.C. 7/20/2005 B.R. 7/20/2005 B.R. Date Drawn Date 7/20/2005 4/21/2008 AT-1720-TT-R Transducer (Piezo) Edition Sheet - 1/1