1.Dimension（Unit：mm）

 

 

2.Electrical Characteristics

 

 

No.	Item	Unit	Specifications
1	Type		VT-US40T1004	VT-US40R1004
2	Construction		Open Structure
3	Using  Method	KHZ	Transmitter	Receiver
4	Center Frequency		40.0±1.0khz	38.3±1K Hz
5	Transmitting Sound Pressure level	dB	min.115dB (10V/30cm)	------
7	Receive Sensitivity	dB	-----	min. -65dB /V/ µbar
8	Capacitance	pF	2500pF±25% at 1KHz
9	Directivity	°	50deg
10	Operating Temperature	℃	-35 to +85℃
11	Storage Temperatire	℃	-35 to +85℃
12	Detectable Range		0.7...18m
13	Maximum  Input Voltage	Vp-p	60Vp-p
11	Housing   Material		MPPO

 

 3.Directivity  

                             

                                  Direcivity in Overall Senaitivity

4.Beam pattem

     

                                 Frequency(KHZ)

                             SP-Freq.Characteristics

 

                                                         Frequency(KHZ)

                                              Sensitivity-Freq.Characteristics

 

5.Test circuit                                      

                                                                                                                                                             R:3.9KΩ  RC=1KΩ                                   

                                              T.G.:Target

                                        F.G:Function Generator

                                        O.S.:Oscilloscope

                             

6.Reliability Test

  6.1High temp.life test

       Temperature                   + 85±3°C

       Duration                          500hrs

6.2 Low temp.life test

       Temperature                   -40±3°C

       Duration                          500hrs

    6.3 Heat Cycle Test

       Temperature                    + 85±3°C 1hour

                                            -40±3°C 1hour

       Cycles                               100cycles

    6.4 Humidity Test

       Temperature                      +65±2°C

       Relative Humidity                90~95%

       Duration                            500hrs

    6.5 Vibration Test

       Vibration Frequency              10~ 200Hz

       Sweep Period                         1 5min

       Acceleration                          43.12m/s ² (4.4G)

       Direction                               3(x.y&z)

       Time                                    96hours/direction

    6.6 Shock test

       Acceleration                     sine 980 m/s²(100G)

       Direction                          3directions

       Shock time                      3 time/directions

    6.7 Drop test

       Height                          1m onto concrete floor

       Times                           10 times

    6.8 Connector soldering check:

       Immersing terminal up to 1mm below base in soldering bath at 260 ℃ 10seconds

       Notice:

       The variation of the S.P.L at 40 kHz is within 3dB compared with initial figuresat 

       25°C in 2 4 hours after above test condition.

    7.Notice

    7.1 Export Control 

No BeStar products should be used or sold, through any channels, for use in the design,

development, production, utilization, maintenance or operation of, or otherwise contribution to

(1) any weapons (Weapons of Mass Destruction [nuclear, chemical or biological weapons or

missiles] or conventional weapons) or

(2)goods or systems specially designed or intended for military end-use or utilization by military

end-users.

7.2 Please contact our sales representatives or product engineers before using the products in

the specification or catalogue for the applications listed below, which require especially high

reliability for the prevention of defects which might directly damage a third party's life, body or

property, or when one of our products is intended for use in applications other than those

specified in this specification.

a) Aircraft equipment or Aerospace equipment

b) Undersea equipment and Power plant equipment

c) Medical equipment and Transportation equipment (vehicles, trains, ships, etc.)

d)Traffic signal equipment i Disaster prevention / crime prevention equipment

e) Data-processing equipment including Application of similar complexity and/or reliability

requirements to the applications listed above

7.3 Product specifications and catalogues are subject to change and our products in them may

be discontinued without advance notice.

Please check with our sales representatives or product engineers before ordering. If there are

any questions, please contact our sales representatives or product engineers.

7.4 Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and

handling) in this specifications in order to prevent smoking and/or burning, etc.

7.5 Please note that unless otherwise specified, we shall assume no responsibility whatsoever

for any conflict or dispute that may occur in connection with the effect of our and/or a third

party's intellectual property rights and other related rights in consideration of your use of our

products and/or information described or contained in our specifications and catalogues. In this

connection, no representation shall be made to the effect that any third parties are authorized

to use the rights mentioned above under licenses without our consent.

7.6 No ozone depleting substances (ODS) under the Montreal Protocol are used in our

manufacturing process.