38MM 25KHZ Piezo Ultrasonic horn loudspeaker Rat repellent dog mosquito bat insect mite removal installation use speaker
| No. | Parameter | Value |
|---|---|---|
| 1 | Model No. | TM-3825 ultrasonic speaker |
| 2 | Rated Voltage (Vp-p) | 5.5V |
| 3 | Operating Voltage (Vp-p) | 30V |
| 4 | *Resonant Frequency (Hz) | 25±5KHz |
| 5 | Rated Frequency Range | 2.5-50KHz |
| Capacitance at 100Hz | 40,000pF±30% | |
| 6 | *Sound Output at 50cm (dB) | ≥90dB/50cm/5.5V |
| paper cone | paper cone | |
| 7 | Operating Temperature (℃) | -20~+70 |
| 8 | Storage Temperature (℃) | -30~+80 |



| ITEM | TESTING CONDITION | VARIANCE AFTER TEST |
|---|---|---|
High Temperature Test | After being worked in a chamber at +70±2℃ for 2h and then being placed in natural condition for 2h,sounder shall be measured. | After test,the transducr S.P.L.difference shall be within ±10dB,and the appearance not exist any change to be harmful to normal operation(e.g.cracks,rusts,damages and especially distortion) |
Low Temperature Test | First being worked in a chamber at -30 ± 2 ℃ for 2h and then being planed in a chamber at -30±2℃ for16h,finally being placed in natural condition for2h,sounder shall be measured. | |
Humidity Test | After being placed in a chamber with 90 to 95%R.H.at+40 ± 2 ℃ for 48h and then being placed in natural condition for 2h,sounder shall be measured. | |
Vibration Test | Sounder shall be measured after being applied vibration of amplitude of 0.75mm with 10 to30 to10Hz band of vibration frequency to each of 3 perpendicular directions for 1hour. | |
Freely Falling Test | Sounder shall be measured after freely falling the products from 0.8m high to the wooden board with three sides per time. | |
Collision Test | Sounder shall be measured after the test of acceleration 100 ± 10m/s²,impulse lasting time 16ms,repeat frequency 1~3/min and time 1000±10. | |
Solderability | Lead terminals are immersed in rosin for 3 seconds and then immersed in solder bath at +250 ± 5 ℃ for 3 ± 0.5 seconds,terminals should be covered with the clean solder. | |
Terminal Strength Pulling | The force 10 seconds of 1N is applied to each terminal in axial direction.no looseness and falling off. | |