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90 Milliampere (mA) Maximum Rated Current Transducer

90 Milliampere (mA) Maximum Rated Current Transducer
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70 Milliampere (mA) Maximum Current Draw Transducer

70 Milliampere (mA) Maximum Current Draw Transducer
List Price {QUOTE}
Manufacturer Stock N/A {0} N/A {0}
Description N/A N/A Though extremely small, the SMT-0440 series transducers are constructed almost exactly the same as electro-mechanical transducers three times their size. What this means for users is that PUI Audio is leveraging their decades of tried-and-true transducer design into each and every one of these, for the designer's piece of mind.

The 4 mm square by 2 mm high SMT-0440-T-R top-firing electro-mechanical transducer features a minimum SPL of 70 dBA at 10 cm with only 3V (0-peak) input at 4 kHz.
Brands N/A PUI Audio™
Manufacturer N/A PUI Audio�, Inc.
Rated Peak Voltage (Vpk) N/A 3 V N/A
Rated Voltage (V0-p) N/A N/A 3 V
Peak Operating Voltage Range (Vpk) N/A 2 ~ 4 V N/A
Operating Voltage Range (V0-p) N/A N/A 2 ~ 4 V
Maximum Rated Current N/A 90 mA N/A
Coil Resistance N/A 17 Ω N/A
Coil Resistance Tolerance (±) N/A 3 Ω N/A
Impedance N/A N/A 17 Ω
Impedance Tolerance (±) N/A N/A 3 %
Minimum Sound Pressure Level (SPL) at 10 Centimeter (cm) N/A 70 dBA
Resonant Frequency N/A 4000 Hz
Resonant Frequency Tolerance (±) N/A 500 Hz
Maximum Current Draw1 N/A N/A 90 mA
Color N/A Black N/A
Housing Material N/A Liquid Crystal Polymers (LCP)
Terminal Material N/A Tin Plated Brass
Operating Temperature N/A -20 ~ +70 ºC
Storage Temperature N/A -30 ~ +80 ºC
High Temperature Test N/A N/A 96 hours at +70 ºC ± 2 ºC followed by two hours in normal room temperature
Low Temperature Test N/A N/A 96 hours at -20 ºC ± 2 ºC followed by two hours in normal room temperature
Humidity Test N/A N/A 25 ± 2 ºC at 90-95% RH for 5 hr, then to 55 ± 2 ºC at 90-95% RH for 5 hr, then to 25 ºC ± 2 ºC at 90-95% RH for 0.5 hr, 10 cycles
Vibration Test N/A N/A 10-50 to 10 Hz in three perpendicular directions for two hours each.
Drop Test N/A N/A Drop transducer from a 70 cm height onto a 10 mm thick wooden board in three directions.
Note for Reliability Testing N/A N/A After each test, the part's SPL, frequency response, and current draw shall meet specifications.
Type N/A Electro-Mech N/A
Size N/A 4 mm
Tolerance (±) N/A 0.5 mm
Angle Tolerance (±) N/A 3 º
Weight N/A 0.1 g
Industry Standards N/A Restriction of Hazardous Substances (RoHS) 2011/65/EU
Features N/A N/A
  • Ultra-small design for wearable devices
  • High output in a small, lightweight package
  • Pick-and-place and reflow compatible
Note N/A Specifications subject to change or withdrawal without notice.
  • 1 Rated voltage, 50% duty cycle, at resonant frequency