PUI Audio? introduces the SMT-0340-T-R, the smallest surface mount transducer ever created! This tiny device is less than 1/6th the size of a dime and is perfect for generating audible notifications on wearables and other small electronics.
Unit of Measure

Specifications

Available

Manufacturer Stock

Brands

 PUI Audio™

Manufacturer

 PUI Audio�, Inc.

Rated Voltage (V0-p)

 3 V

Operating Voltage Range (V0-p)

 2 ~ 4 V
Current Draw at Rated Voltage1 ≤ 120 mA

Coil Resistance

 12 Ω

Coil Resistance Tolerance (±)

 3 Ω
Minimum Sound Pressure Level (SPL) at 5 Centimeter (cm)2 72 dBA

Resonant Frequency

 4000 Hz

Resonant Frequency Tolerance (±)

 500 Hz

Housing Material

 Liquid Crystal Polymers (LCP)

Terminal Material

 Tin Plated Brass

Acceptable Soldering Methods

 Hand Solder at 350 ºC for 5 seconds Reflow Solder

Environmental Compliances

 Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) Restriction of Hazardous Substances (RoHS)

Operating Temperature

 -20 ~ +70 ºC

Storage Temperature

 -30 ~ +80 ºC

Size

 3.2 mm

Tolerance (±)

 0.5 mm

Angle Tolerance (±)

 3 º

Weight

 0.1 g

Reliability Testing

High Temperature Test

 The part shall be capable of withstanding a storage temperature is +80 ºC for 96 hours

Low Temperature Test

 The part shall be capable of withstanding a storage temperature is -30 ºC for 96 hours

Humidity Test

 40±2 ºC, 90 ~ 95% RH, 96 hours, then allowed to rest at room temperature for two hours

Vibration Test

 The part shall be subjected to a vibration cycle that is 10 Hz in a period of 1 minute. Total peak amplitude shall be 1.52 mm (9.3 g).

The vibration test shall consist of 2 hours per plane in each three mutually perpendicular planes for a total time of 6 hours.

Drop Test

 Drop from a height of 75 cm onto 4 cm thick wood board six times.

Note for Reliability Testing

 After each test, part shall meet specifications with an SPL variance of no more than ±10 dB

Note

Note

 Specifications or changes may not be made without prior customer notification and approval.
  • 1 At rated voltage with 50% duty cycle 4 kHz positive biased square-wave.
  • 2 At rated voltage with 50% duty cycle 4 kHz positive biased square-wave.