MODEL: ST-1411 PRODUCT: Electro Magnetic Buzzer EDITION: A/2016 THIS SPECIFICATION APPLIES TO THE ELECTROMAGNETIC BUZZER SPECIFICATION Test condition: TEMP=+25±2 oC Related humidity=65±5% Air pressure:860-1060mbar item unit specification condition rated voltage Vo-p 3.0 Vo-p operating volt Vo-p 2-4 mean current mA 80 Max coil resistance Ω 18±3 sound output dBA 87 rated frequency Hz 3200 operating temp oC -30 ~ +80 storage temp oC -40 ~ +85 dimension mm L14×W11×H3.0 weight gram 1.0 0V At rated voltage 3200Hz square wave, 1/2 duty At 10cm(A-weight free air), at rated voltage 3200Hz, square wave, 1/2duty material LCP(Black) terminal SMD type (Plating Sn) environmental protection regulation RoHS See attached drawing See attached drawing ENVIRONMENT TEST item test condition evaluation standard high temp. test After being placed in a chamber at +80oC for 96 hours. low temp. test After being placed in a chamber at -40oC for 96 hours. AAfter the test the part will meet specifications without any degradation in appearance and performance except SPL. after 4 hours at +25oC . The SPL will be in ±10dBA compared with initial one. thermal shock The part will be subjected to 10 cycles. One cycle shall consist of: +85oC -40oC 30 min 30 min 60 min temp./humidity cycle The part will be subjected to 10 cycles. One cycle shall be 24 hours and consist of: +85oC +25oC a a,b: 90~98%RH c: 80~98%RH b 12±0.5hrs 3hrs c 9hrs 24 hrs PAGE 1/4 MODEL: ST-1411 PRODUCT: Electro Magnetic Buzzer EDITION: A/2016 RELIABILITY TEST item test conditions evaluation standard operating life test CONTINUOUS LIFE TEST The part will be subjected to 72 hours of continuous operation at +60oC with 3.6V, 3200Hz applied After the test the part will meet specifications without any degradation in appearance and performance except SPL, after 4 hours at +25oC. The SPL would be in ±10dBA compared with initial one. INTERMITTENT LIFE TEST A duty cycle of 1 minute on, 1 minutes off, a minimum of 10,000 times at room temp. (+25±10oC)with 3.6V,3200Hz applied. TEST CONDITION Standard Test Condition : a)Temperature: +5~+35℃ b)Humidity:45~85% c)Pressure: 860~1060mbar MECHANICAL CHARACTERISTICS item test condition evaluation standard solderability Lead terminals are immersed in solder bath of +270±5oC for 3±1 second 90% min. lead terminals will be wet with solder No interference in operation. soldering heat resistance The product followed the reflow profile to test its reflow thermo-stability. terminal mechanical strength Lead pads will be soldered on the pc board, and the force 9.8N(1.0Kg) will be applied behind the part for 10 seconds. No damage and cutting off 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 specifications without any damage in appearance and performance except SPL. SPL would be in ±10dBA compared with initial one. drop test The part only shall be dropped from a height of 75cm onto a 40mm thick wooden board 3 times in 3 axes (X,Y, Z). Total of 9 times. RECOMMENDED TEMPERATURE PROFILE FOR REFLOW OVEN Temperature oC PAGE 2/4 METHOD MODEL: ST-1411 G: MEASUREMENT PRODUCT: ElectroMETHOD Magnetic Buzzer G: MEASUREMENT EDITION: A/2016 MEASUREMENT TEST CIRCUIT +Vcc 180 Vp Vp 180 OV OV VCE +Vcc VCE H: INSPECTION FIXTURE H: INSPECTION FIXTURE INSPECTION FIXTURE BUZZER Sound Level Meter TES1350A BUZZER Sound Level Meter TES1350A 40cm 10cm 40cm 10cm DIMENSIONS Tolerance:±0.3 (unit: mm) PAGE 3/4 MODEL: ST-1411 PRODUCT: Electro Magnetic Buzzer EDITION: A/2016 I:PACKING PACKING STANDARD包装方式 1 Reel : 750PCS Carton Box (10 Inner Box) Inner Box (1Layer Reel) Inner Box 330mmx330mmx30mm 1x750PCS=750PCS Carton Box 350mmx350mmx370mm 10x750PCS=7,500PCS PAGE 4/4