SPECIFICATION Model ： Spec No. ： Customer Approval Status Dsg'd : Chk'd : App'd : File Publish Sign Piezo Buzzer ST-0503-3 SOBERTON ： Edition File clerk File Publish Sign A ： ≤£ ® — ≥° 2014.11.21 211 North First Street Minneapolis, MN. 55401 ™ Ĺ ÿ ÷ˆ Dsg'd ≤£ ® — ≥° 2014.11.21 §˝™ k ∫Õ Chk'd ≤£ ® — ≥° 2014.11.21 App'd Web-site: www.soberton.com Sales ¥ ø ¨„ ’∏ Kimberly Scheerer MODEL NUMBER CUSTOMER NUMBER ST-0503-3 PRODUCT TYPE REVERSION DATE PAGE Buzzer A 2014-11-21 1/5 A. SCOPE This specification applies magnetic buzzer, ST-0503-3 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. 110 at Rated Voltage 5 Sound Pressure Level dB MIN. 75 at 10cm at Rated Voltage 6 Coil Resistance Ω 12±3 7 Operating Temperature -20 ~ +60 8 Storage Temperature -30 ~ +80 9 Dimension mm 5.0 x 5.0 x H2.7 10 Weight (MAX) gram 0.1 11 Housing Material LCP( Black ) 12 Leading Pin Tin Plated Brass(Sn) 13 Environmental Protection Regulation RoHS C. APPEARANCE DRAWING - 喷墨印字 Tol : ± 0.3 Unit: mm See appearance drawing See appearance drawing MODEL NUMBER CUSTOMER NUMBER ST-0503-3 PRODUCT TYPE REVERSION DATE PAGE Buzzer A 2014-11-21 2/5 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 MODEL NUMBER CUSTOMER NUMBER ST-0503-3 PRODUCT TYPE REVERSION DATE PAGE Buzzer A 2014-11-21 3/5 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 350º C within 5 sec. MODEL NUMBER CUSTOMER NUMBER ST-0503-3 PRODUCT TYPE REVERSION DATE PAGE Buzzer A 2014-11-21 4/5 H. RELIABILITY TEST NO. ITEM 1 High Temperature Test (Storage) 2 Low Temperature Test (Storage) After being Placed in a chamber with -30ð2ºC for 96 hours and then being placed in normal condition for 2 hours. Allowable variation of SPL after test: ð10dB. Humidity Test After being Placed in a chamber with 90-95% R.H. at 40ð2ºC for 96 hours and then being placed in normal condition for 2 hours. Allowable variation of SPL after test: ð10dB. 3 TEST CONDITION AND REQUIREMENT After being placed in a chamber with 80ð2ºC for 96 hours and then being placed in normal condition for 2 hours. Allowable variation of SPL after test: ð10dB. The part shall be subjected to 5 cycles. One cycle shall be consist of： +60ºC +25ºC +25ºC 4 Temperature Cycle Test 20ºC Allowable variation of SPL after test: ð10dB. 5 6 Drop on a hard wood board of 4cm thick, any directions ,6 times, at the height of 75cm . Allowable variation of SPL after test: ð10dB. Drop Test Vibration Test 7 Solderability Test 8 Terminal Strength Pulling 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: ð10dB. Lead terminals are immersed in rosin for 5 seconds and then immersed in solder bath of +300ð5ºC for 3ð1 seconds . 90% min. lead terminals shall be wet with solder (Except the edge of terminals). 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 Conditio : a) Temperature : +5 ~ +35℃ Judgment Test Conditio : b) Humidity : 45-85% a) Temperature : +25 ± 2℃ b) Humidity : 60-70% c) Pressure : 860-1060mbar c) Pressure : 860-1060mbar ST-0503-3 Buzzer A 2014-11-06 I. PACKING STANDARD 1 Reel : 2500PCS Carton Box (10 Inner Box) Inner Box (1Layer Reel) Inner Box 330mmx330mmx30mm 1x2500PCS=2500PCS Carton Box 350mmx350mmx370mm 10x2500PCS=25,000PCS 5/5