SPECIFICATION FOR APPROVAL Customer： Description： Magnetic Buzzer Soberton Part No. ：ST-0402 Date：2015-06-04 Customer Model No. ： Date of Approval Authorization Signature 211 N. First Street Minneapolis, MN. 55401 Tel：612-849-6205 Fax：952-933-2130 Http://www.soberton.com E-mail： [email protected] Approved Checked Design Jasmine Frank Jim 2015/6/4 2015/6/4 2015/6/4 MODEL NUMBER CUSTOMER NUMBER ST-0402 PRODUCT TYPE REVERSION DATE PAGE Magnetic Buzzer A 2015-06-04 1/5 A. SCOPE This specification applies magnetic buzzer, ST-0402 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 10 Weight (MAX) gram 0.1 11 Housing Material LCP( Black ) 12 Leading Pin Tin Plated Brass(Sn) 13 Environmental Protection Regulation RoHS See appearance drawing See appearance drawing C. APPEARANCE DRAWING SOUND PORT PCB Layout Tol : ± 0.3 Unit: mm MODEL NUMBER CUSTOMER NUMBER PRODUCT TYPE REVERSION DATE PAGE Magnetic Buzzer A 2015-06-04 2/5 ST-0402 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-0402 PRODUCT TYPE REVERSION DATE PAGE Magnetic Buzzer A 2015-06-04 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 350 ºC within 5 sec. CUSTOMER MODEL NUMBER NUMBER PRODUCT TYPE REVERSION DATE PAGE Magnetic Buzzer A 2015-06-04 4/5 ST-0402 H. RELIABILITY TEST NO. 1 2 ITEM High Temperature Test (Storage) Low Temperature Test (Storage) TEST CONDITION AND REQUIREMENT After being placed in a chamber with 80ï2ºC for 96 hours and then being placed in normal condition for 2 hours. Allowable variation of SPL after test: ï10dB. After being Placed in a chamber with -30ï2ºC for 96 hours and then being placed in normal condition for 2 hours. Allowable variation of SPL after test: ï10dB. After being Placed in a chamber with 90-95% R.H. at 40ï2ºC for 96 3 Humidity Test hours and then being placed in normal condition for 2 hours. Allowable variation of SPL after test: ï10dB. The part shall be subjected to 5 cycles. One cycle shall be consist of： +70ºC +25ºC +25ºC 4 Temperature Cycle Test 20ºC Allowable variation of SPL after test: ï10dB. Drop on a hard wood board of 4cm thick, any directions ,6 times, 5 Drop Test at the height of 75cm . Allowable variation of SPL after test: ï10dB. After being applied vibration of amplitude of 1.5mm with 10 to 55 Hz 6 Vibration Test band of vibration frequency to each of 3 perpendicular directions for 2 hours . Allowable variation of SPL after test: ï10dB. Lead terminals are immersed in rosin for 5 seconds and then 7 Solderability Test immersed in solder bath of +300ï5ºC for 3ï1 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 860-1060mbar Judgment Test Condition :a) Temperature : +5 ~ +35℃ :a) Temperature : +25 ± 2℃ b) Humidity : 45-85% b) Humidity : 60-70% c) Pressure c) Pressure : 860-1060mbar : MODEL NUMBER CUSTOMER NUMBER ST-0402 I. PRODUCT TYPE REVERSION DATE PAGE Magnetic Buzzer A 2015-06-04 5/5 PACKING STANDARD 1 Reel : 3000PCS A A Carton Box (10 Inner Box) Inner Box (1Layer Reel) Inner Box 330mmx330mmx30mm 1x3000PCS=3000PCS Carton Box 350mmx350mmx370mm 10x3000PCS=30,000PCS