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Technical content

7.5 x 7.5mm Transducer Product Overview

  • Side-firing electromechanical transducer designed for 2 to 5Vp-p
  • Small 7.5 x 7.5mm footprint and 2mm height for thin, modern devices
  • 85 dBA minimum output (3.6Vp-p @ 10 cm) and 2.7 kHz resonant frequency
  • Designed for reflow soldering using a lead-free profile Frequency Response (3.6 Vp-p @ 0.1 meters)

3541 Stop Eight Road • Dayton, Ohio 45414

Mechanical and Environment Testing Test Description Test Condition High Temperature 85°C (±2°C) with random humidity for 96 hours Low Temperature -40°C (±2°C) with random humidity for 96 hours Humidity 25°C to 60°C with 90% to 95% relative humidity for 12 hours, 10 cycles Vibration 1.53 mm movement modulated at 10-55 Hz in 3 directions for 6 hours Drop Test 120 cm free fall in six directions, 3 cycles Temperature Cycle Test -30°C to 70°C, five 90 minute cycles After testing, part shall rest for two hours and then be tested for a clean, pure tone. Tape Dimensions Recommended Reflow Profile SMT-0727-S-R 7.5 x 7.5mm Transducer Recommended Land Pattern

Transducer (Electro-Mech) SMT-0727-S-R Designed by Checked by Approved by Drawn Date Edition Sheet Date 9/15/2005 Date 9/15/2005 Date 9/15/2005 UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN MILLIMETERS, TOLERANCES ARE ±0.5 AND ANGLES ARE ±3°. SMT-0727-S-R.idw SIZE

REVISION HISTORY

LTR DESCRIPTION DATE APPROVED - RELEASED FROM ENGINEERING 9/15/2005 A REVISED TO INVENTOR 3-D DRAWING TEMPLATE 4/29/2010 B.R. SPECIFICATIONS PARAMETERS VALUES UNIT RATED VOLTAGE 3.6 Vp-p OPERATING VOLTAGE RANGE 2 ~ 5 Vp-p RATED CURRENT (MAX) 120 mA COIL RESISTANCE 12 ± 2 OHM MINIMUM SPL @ 10 CM 85 dBA RESONANT FREQUENCY 2,700 ± 500 Hz OPERATING TEMPERATURE -30 ~ +70 °C STORAGE TEMPERATURE -40 ~ +85 °C HOUSING MATERIAL LCP - TERMINAL MATERIAL Sn PLATED PHOSPHOR BRONZE WEIGHT 0.33 grams 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. ©2003, Projects Unlimited Inc. 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. 7.5 7.5 4.7 1.20.35 0.85 5.5 0.8 (4) 86.6 DUMMY PAD DUMMY PAD POLARITY PAD (-) POLARITY PAD (+) SOUND HOLE TO727SR P U I KOREA 09.GD