This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission of PUI Audio Inc. is prohibited. 2020, PUI Audio Inc. Data Sheet SMT-0340-T-R PUI Audio introduces the SMT-0340-T-R, the smallest surface mount transducer ever th created This tiny device is less than 1/6 the size of a dime and is perfect for generating audible notifications on wearables and other small electronics. Specifications Parameters Values Units Rated Voltage 3 V0-p Operating Voltage Range 2~4 V0-p Current Draw at Rated Voltage* 120 mA Coil Resistance 12 3 Ohms Minimum SPL 5cm* 72 dBA Resonant Frequency 4,000 500 Hz Housing Material LCP - Terminal Material Tin-Plated Brass - Weight 0.1 Grams Hand Solder 350C for 5s, See page 3 for reflow Acceptable Soldering Methods Reflow Solder solder information Environmental Compliances RoHS/REACH - Operating Temperature -20 ~ +70 C Storage Temperature -30 ~ +80 C *At rated voltage with 50% duty cycle 4 kHz positive biased square-wave Recommended Drive Circuit (Transistor should have a Vce 0.15V and hFE 200) PUI Audio, Inc., 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925 This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission of PUI Audio Inc. is prohibited. 2020, PUI Audio Inc. Typical Frequency Response (3V input measured at 5cm) Reliability Testing Type of Test Test Specifications The part shall be capable of withstanding a storage High Temperature Test temperature is +80 for 96 hours The part shall be capable of withstanding a storage Low Temperature Test temperature is -30 for 96 hours 402, 90 95% RH, 96 hours, then allowed to rest at Humidity Test room temperature for two hours Total 5 cycles of the following Temperature Cycle Testing The part shall be subjected to a vibration cycle that is 10Hz in a period of 1 minute. Total peak amplitude shall be 1.52mm (9.3g). The vibration test shall consist of 2 hours per plane in each three mutually perpendicular planes for a total Vibration Test time of 6 hours. Drop from a height of 75cm onto 4 cm thick wood board Drop Test six times. After each test, part shall meet specifications with an SPL variance of no more than 10 dB PUI Audio, Inc., 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925