FHD1612T40A

1.Technical Parameter  Measuring condition   

1.Part shall be measured under a condition (Temperature: 5～35℃, Humidity: 45%～85%R.H., Atmospheric pressure: 860 ～1060hPa) unless the standard condition (Temperature: 25±3℃, Humidity: 60±10%R.H. Atmospheric pressure: 860 ～1060hPa) is regulated to measure.

2.Dimensions       Unit：mm case(Aluminium)

Recommended Setting 

FC:     Frequency  Counter                 Tw：   Tweeter BFO:      Beat Freq.  Osc.                    RL:    Resistor  Load 3.9kΩ TUT:    Transducer  Under  Test             MIC:   Microphone MA:     Measuring  Amplifier                AEC:   Anechoic  Chamber

Impedance/Phase Angle vs.Frequency

Tested under 1Vrms Oscillation Level

Sensitivity/Sound Pressure Level

Tested under 10Vrms@30cm  

Beam Angle:Tested at 25.0Khz frequency   

　　2.Reliability Test
After any following tests the part shall meet specifications without any degradation in appearance and performance except SPL. SPL shall not deviate more than -5 dB from the initial value
a)Ordinary Temperature Life Test
The part shall be subjected to 96 hours at 25±10℃. Input rated voltage Resonant frequency, 1/2 duty Square wave.
b)High Temperature Test
The part shall be capable of with standing a storage temperature of +80℃ for 96 hours.
c)Low Temperature Test 
The part shall be capable of with standing a storage temperature of -40℃ for 96 hours.
d)Humidity Test
Temperature:+40℃±3℃   Relative Humidity:90%～95% Duration: 48 hours and expose to room temperature for 6 hours
e)Temperature Shock Test
Temperature:60℃ /1hour→ 25℃/3hours→-20℃/1hour→ 25℃/3hours (1cycle) Total cycle: 10 cycles
f)Drop Test
Standard Packaging From 75cm(Drop on hard wood or board of 5cm thick,  three sides, six plain.)
g)Vibration Test
Vibration:1000cycles /min. Amplitude:1.5mm, Duration: 1 hour in each 3 axes
Note:
As this product is not protected from foreign material entering, please make sure that any foreign materials (e.g. magnetic powder, washing solvent, flux, corrosive gas) do not enter this product in your production processes. The functional degradation (e.g. SPL down) may occur if foreign material enter it.