this specification applies to the electromagnetic buzzer specification test condition: temp=+25 2 oc related humidity= 65 5% air pressure: 860 ~ 1060mbar item unit specifcation condition rated voltage vo-p 5.0 operating voltage vo-p 3.0 ~ 7.0 mean current ma max.40 at rated voltage direct current sound output dba 90 at 10cm (a-weight free air) at rated voltage direct current rated frequency hz 2400 200 operating temperature oc -30 ~ +85 storage temperature oc -40 ~ +85 dimension mm 12.8 12.8 7.1 see appearance drawing. weight gram 2.0 material pps(gray) terminal smd type (plating sn) see appearance drawing environmental protection regulation rohs environment test item test condition and requirement evaluation standard high temperature test after being placed in a chamber at +80oc for 96 hours. after the test the part will meet spec - ifcations without any degradation in appearance and performance except spl, after 4 hours at +25oc. the spl will be in 10dba compared with the initial one. low temperature test (storage) after being placed in a chamber at -40oc for 96 hours. thermal shock the part will be subjected to 10 cycles. one cycle shall consist of: temperature/humidity cycle test the part will be subjected to 10 cycles, one cycle shall be 24 hours and consist of: page 1/5 a,b: 90~98%rh c: 80~98%rh +85oc +25oc 3hrs 3hrs 120.5hrs 24 hrs a b c 60 min 30 min -40oc 30 min +85oc model: WST-1307S product: electromagnetic buzzer edition: a/2017
page 2/5 reliability test item test conditions evaluation standard operating life test ordinary temperature the part will be subjected to 96 hours of continuous operation at +25 10oc. after the test the part will meet specifcations without any degradation in appearance and performance except spl, after 4 hours at +25oc. the spl will be in 10dba compared with the initial one. high temperature the part will be subjected to 72 hours of continuous operation at +60oc with 5v, 2400hz applied. low temperature the part will be subjected to 72 hours of continuous operation at -20oc with 5v, 2400hz applied. high and low voltage applying 4 voltage and 7 voltage, available time 24 hours each. test condition standard test condition: a) temperature : +5 ~ +35oc b) humidity : 45 ~ 85% c) pressure : 860 ~ 1060mbar mechanical characteristics item test conditions evaluation standard solderability lead terminal are immersed in rosin for 5 seconds and then immersed in solder bath of +250 5oc for 3 0.5 seconds 90% min. lead terminals will be wet with solder no interference in operation. soldering heat resistance lead terminals are immersed in soldering bath of +2505oc for 20.5 seconds. terminal mechanical strength apply the terminal with 1kg strength for 1 minute. no damage and cutting of. vibration the part will be subjected to a vibration cycle of 10hz to 55hz to 10hz in a period of 1 minute. total peak amplitude will be 1.52mm(9.3g). the vibration test will consist of 2 hours per axis in each three axes(x,y,z). total 6 hours. after the test the part will meet specifcations without any damage in appearance and performance except spl. the spl would be 10dba compared with the initital one. drop test the part only will be dropped from a height of 75cm onto a 40mm thick wooden board 3 times in 3 axes(x,y,z). a total of 9 times. recommended wave soldering temperature curve model: WST-1307S product: electromagnetic buzzer edition: a/2017
inspection fixture page 3/5 frequency response recommended land pattern model: WST-1307S product: electromagnetic buzzer edition: a/2017
tolerance: 0.5 unit:mm (+) (-) potting 1 2 3 4 6 7 8 no. 1 3 5 6 7 4 components material q'ty pin pcb core coil magnet ring diaphragm case pps ferrum poly+ferrite copper ferrum epoxy glass fiber cloth+copper copper 1 1 1 1 1 1 2 silver ink WST-1307S 5 2 transistor epoxy +copper 2 8 dimensions tolerance:0.5 (unit: mm) page 4/5 no components material quantity 1 pin copper 2 2 transistor epoxy + copper 2 3 pcb epoxy glass fber cloth + copper 1 4 core ferrum 1 5 coil copper 1 6 magnet ring poly+ferrite 1 7 diaphragm ferrum 1 8 case pps model: WST-1307S product: electromagnetic buzzer edition: a/2017
packing page 5/5 packing box l x w x h (mm) pieces inner box 340x340x40 1 x 450 = 450pcs carton box 350 x 355 x 175 10 x 450 = 4,500pcs model: WST-1307S product: electromagnetic buzzer edition: a/2017
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