SMD Transducer ctparts.com CTMBT4018F-4512 Physical Dimensions (mm) 4.0 (Frame) RoHS 3-0.6 Compliant 4.0 (Frame) 4.5 Max. (Pad) 3-0.9 (-) Polarity (+) Polarity Dummy 2.25 3.45 ø4.0 Not shown at actual size. Frame Material: Alren 1.8 3-0.7 APPLICATIONS Unless otherwise specified all tolerances are ±0.2mm Cellular Phones Pagers Communication Equipment Household Appliances Security and Electronic Devices Recommended PCB Layout (mm) 3.85 FEATURES - Small and slim size - Designed for reflow process - Tape and reel packaging for auto mounting Dummy (+) Polarity 1.6 ELECTRICAL CHARACTERISTICS Speficications Operating Voltage Rated Current Coil Ressitance 1.8 5.0 1.6 Conditions 3.3Vo-p 2.0V ~ 4.0Vo-p (-) Polarity Frequency Response Curve Vp-p 0v 100mA Max. 100 12Ω ±3 Sound Pressure Level (at 10cm) 78dBA Min. Resonant Frequency 4.5kHz 090 f=4.5kHz, Vp-p=3.3Vdc 1/2 Duty Square Wave 080 dB Rated Voltage 0.9 1.6 1.0 0.8 1.05 1.0 - Operating Temperature -30°C to +70°C 070 Storage Temperature -40°C to +85°C 060 Note: All data at 25°C, Humidity 40%~80% unless otherwise specified. 050 100 200 300 500 700 1k 1.5k Hz Square wave, 1/2 duty ratio, measurement distance 10cm 08.12.09 CENTRAL TECHNOLOGIES Manufacturer of Passive Components 800-684-5322 Inside US 949-453-1811 Outside US Copyright © 2009 by CT Magnetics, DBA Central Technologies. All rights reserved. CT Magnetics reserves the right to make improvements or change specifications without notice 2k 3k 4k 5k 7k 10k