常州电磁式无源贴片蜂鸣器SMD-128070F顶发音厂家直销现货生产

描 述A. SCOPE

This specification applies magnetic buzzer, SMD-128070F-05024CR47

B. SPECIFICATIONNo.ItemUnitSpecificationCondition1Oscillation FrequencyKHz24002Operating VoltageVDC3 ~73Rated VoltageVDC54Current ConsumptionmAMAX. 90at Rated Voltage5Sound Pressure LeveldBMIN. 90at 10cm at Rated Voltage6Coil ResistanceΩ47±47Operating Temperature℃-40 ~ +858Storage Temperature℃-40 ~ +909Dimensionmm12.8 x 12.8 x H7.0See appearance drawing10Weight (MAX)gram2.011Housing MaterialPPS( Black )12Leading PinTin Plated Brass(Sn)See appearance drawing13Environmental

Protection RegulationRoHS

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. VOLTAGE / CURRENT / SOUND PRESSURE CHARACTERISTICS

F. 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 ℃ within 5 sec.

G. RELIABILITY TESTNO.ITEMTEST CONDITION AND RE1High Temperature

Test (Storage)After being placed in a chamber with 852℃ for 96 hours and then being placed in normal condition for 2 hours.

Allowable variation of SPL after test: 10dB.2Low Temperature

Test (Storage)After being Placed in a chamber with -402℃ for 96 hours and then being placed in normal condition for 2 hours.

Allowable variation of SPL after test: 10dB.3Humidity TestAfter 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.4Temperature Cycle

TestThe part shall be subjected to 5 cycles. One cycle shall be consist of:

Allowable variation of SPL after test: 10dB.5Drop TestDrop on a hard wood board of 4cm thick, any directions ,6 times, at the height of 75cm .

Allowable variation of SPL after test: 10dB.6Vibration TestAfter 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.7Solderability

TestLead 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).8Terminal Strength

Pulling TestThe 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

H. PACKING STANDARD