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                                  • FUET-4020H

                                  FUET-4020H

                                  Name : FUET-4020H

                                  Type : Electromagnetic Buzzer

                                  Drive Mode : Passive Buzzer

                                  Technology : Smd Buzzer

                                  Size : 3-5mm

                                  Description:

                                  A. SCOPE 
                                  This specification applies magnetic buzzer, FUET-4020H

                                  B. SPECIFICATION

                                  No.

                                  Item

                                  Unit

                                  Specification

                                  Condition

                                  1

                                  Oscillation Frequency

                                  Hz

                                  4000

                                  Vo-p=1/2duty , square wave

                                  2

                                  Operating Voltage

                                  Vo-p

                                  2 ~ 4


                                  3

                                  Rated Voltage

                                  Vo-p

                                  3


                                  4

                                  Current Consumption

                                  mA

                                  MAX. 90

                                  at Rated Voltage

                                  5

                                  Sound Pressure Level

                                  dB

                                  MIN. 70

                                  at 10 cm at Rated Voltage

                                  6

                                  Coil Resistance

                                  Ω

                                  17±3


                                  7

                                  Operating Temperature

                                  -20 ~ +70


                                  8

                                  Storage Temperature

                                  -30 ~ +80


                                  9

                                  Dimension

                                  mm

                                  4.0 x 4.0 x H2.0

                                  See appearance drawing

                                  10

                                  Weight (MAX)

                                  gram

                                  0.1


                                  11

                                  Housing Material


                                  LCP( Black )


                                  12

                                  Leading Pin


                                   Tin Plated Brass(Sn)

                                  See appearance drawing

                                  13

                                  Environmental  
                                  Protection Regulation


                                   RoHS


                                   
                                  C. APPEARANCE DRAWING  


                                  Tol : ± 0.3      Unit: mm


                                  D.TESTING METHOD    
                                  Standard Measurement conditions
                                  Temperature:25±2℃  Humidity:45-65%

                                  Acoustic Characteristics:
                                  The oscillation frequency, current consumption and sound pressure are measured by the measuring instruments shown below
                                   
                                  In the measuring test, buzzer is placed as follows:
                                   
                                   
                                  E. Typical Frequency Response Curve

                                   
                                   

                                  F. Recommend Driving Circuit 
                                   
                                  The base current Ib should high enough so that it saturates the collector current of the transistor with the CB load.

                                   

                                  G. Soldering Condition
                                  (1)Recommendable reflow soldering condition is as follows
                                  (Reflow soldering is twice)
                                  Note:It is requested that reflow soldering should be executed after heat of product goes down to normal.

                                    Heat resistant line
                                  (Used when heat resistant reliability test is performed)
                                  (2)Manual soldering
                                     Manual soldering temperature 350 oC within 5 sec.

                                   

                                  H. RELIABILITY TEST

                                  NO.

                                  ITEM

                                  TEST CONDITION AND REQUIREMENT

                                  1

                                  High Temperature
                                  Test (Storage)

                                  After being placed in a chamber with 802℃ for 96 hours and then being placed in normal condition for 2 hours.
                                  Allowable variation of SPL after test: 10dB.

                                  2

                                  Low Temperature
                                  Test (Storage)

                                  After being Placed in a chamber with -302℃ for 96 hours and then being placed in normal condition for 2 hours.
                                  Allowable variation of SPL after test: 10dB.

                                  3

                                  Humidity Test

                                  After being Placed in a chamber with 90-95% R.H. at 402℃ for 96 hours and then being placed in normal condition for 2 hours.
                                  Allowable variation of SPL after test: 10dB.

                                  4

                                  Temperature Cycle
                                  Test

                                  The part shall be subjected to 5 cycles. One cycle shall be consist of:  
                                  Allowable variation of SPL after test: 10dB.

                                  5

                                  Drop Test

                                  Drop on a hard wood board of 4cm thick, any directions ,6 times,at the height of 75cm .
                                  Allowable variation of SPL after test: 10dB.

                                  6

                                  Vibration Test

                                  After being applied vibration of amplitude of 1.5mm with 10 to 55 Hz band of vibration frequency to each of 3 perpendicular directions for 2 hours .
                                  Allowable variation of SPL after test: 10dB.

                                  7

                                  Solderability
                                  Test

                                  Lead terminals are immersed in rosin for 5 seconds and then immersed in solder bath of +3005℃ for 31 seconds .
                                  90% min. lead terminals shall be wet with solder
                                  (Except the edge of terminals).

                                  8

                                  Terminal Strength
                                  Pulling Test

                                  The force of 9.8N(1.0kg) is applied to each terminal in axial direction for 10 seconds.
                                  No visible damage and cutting off.

                                  TEST CONDITION. 
                                  Standard Test Condition        :      a) Temperature : +5 ~ +35℃     b) Humidity : 45-85%        c) Pressure : 860-1060mbar 
                                  Judgment Test Condition      :      a) Temperature : +25 ± 2℃        b) Humidity : 60-70%        c) Pressure : 860-1060mbar 
                                   

                                  I. PACKING STANDARD 


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