• FHD1612T40A  FHD1612R40A.png


Parts shall be measured under one condition (temperature: 5~35 ℃, humidity: 45% ~ 85% R.H., atmospheric pressure: 860 ~ 1060hPa), unless standard conditions (temperature: 25±3 ℃, humidity: 60±10%R.H. atmospheric pressure: 860 ~ 1060hPa) are adjusted.

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Keywords: buzzer | horn | materialized film

Product Description

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.

1 Resonant Frequency 40.0±1.0KHz
2 Receiving Sensitivity at resonant frequency 0dB=1volt/μbar 120 dB min.
3 Bandwidt(-6dB)  F.O.M. Transmitting sound Pressure Level 1.2KHz
4 Nominal Impedance(Ohm) 900 max.
5 Capacitance at 1KHz   ±25% 2200pf
6 Max.Driving Voltage(pulse width 0.5ms interval 50ms) 100VP-P
7 Total Beam Angle   -6dB 60°±10°
8 Operation Temperature -30to80℃
9 Storage Temperature -40to85℃

2.Dimensions       Unit:mm case(Aluminium)

3.Electrical And Acoustical Measuring Condition

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
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.


3 .Packing

3.1 Install the product in plastic tubes (provided by the customer), with 25PCS per pair of tubes placed as shown in the picture, and the pins cannot be used to mortgage the product screen.

Fix the plug head with tape at both ends to prevent it from falling off.


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Mobile Phone: 008613813568186
Fax: 0519-88739926
Zhenglu Town, Tianning District, Changzhou City, Jiangsu Province

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