SPECIFICATION FOR APPROVAL Customer： Description： Magnetic Buzzer Soberton Part No. ： ST-03BL-1 Date：2015-02-26 Customer Model No. ： Date of Approval Authorization Signature SOBERTON, INC. 211 N. First Street Minneapolis, MN. 55401 Tel：612-849-6205 Fax：952-922-3120 Http://www.soberton.com E-mail： [email protected] Approved Checked Design Jasmine Frank Jim 2015/2/26 2015/2/26 2015/2/26 CUSTOMER MODEL NUMBER NUMBER ST-03BL-1 PRODUCT TYPE REVISION DATE PAGE Magnetic Buzzer A 2015/2/26 2/6 A:SCOPE This specification applies Magnetic Buzzer, ST-03BL-1 B:SPECIFICATION Item No. 1 Oscillation Frequency Unit Specification Condition Hz 2300 Vo-p=1/2duty , square wave 2 Operating Voltage Vo-p 2.5~4.5 3 Rated Voltage Vo-p 3.6 4 Current Consumption mA MAX. 100 at Rated Voltage 5 Sound Pressure Level dB MIN. 87 at 10cm at Rated Voltage 6 Coil Resistance Ω 16±3 7 Operating Temperature ℃ -20 ~ +70 8 Storage Temperature ℃ -30 ~ +80 9 Dimension mm 8.5 x 8.5 x H3.0 10 Weight (MAX) gram 0.8 11 Housing Material LCP( Black ) 12 Leading Pin Tin Plated Brass(Sn) 13 Environmental Protection Regulation C.APPEARANCE DRAWING Tol : ± 0.3 Unit: mm RoHS See appearance drawing See appearance drawing MODEL NUMBER CUSTOMER NUMBER ST-03BL-1 PRODUCT TYPE REVISION DATE PAGE Magnetic Buzzer A 2015-02-26 3/6 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-03BL-1 PRODUCT TYPE REVISION DATE PAGE Magnetic Buzzer A 2015-02-26 4/6 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 Heat resistant line (Used when heat resistant reliability test is performed) (2)Manual soldering Manual soldering temperature 350º C within 5 sec. CUSTOMER MODEL NUMBER NUMBER ST-03BL-1 PRODUCT TYPE REVISION DATE PAGE Magnetic Buzzer A 2015-02-26 5/6 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 80±2ºC for 96 hours and then being placed in normal condition for 2 hours. Allowable variation of SPL after test: ±10dB. After being Placed in a chamber with -30±2ºC for 96 hours and then being placed in normal condition for 2 hours. Allowable variation of SPL after test: ±10dB. After being Placed in a chamber with 90-95% R.H. at 40±2ºC for 96 3 Humidity Test hours and then being placed in normal condition for 2 hours. Allowable variation of SPL after test: ±10dB. The part shall be subjected to 5 cycles. One cycle shall be consist of： +70ºC +25ºC 4 +25ºC Temperature Cycle Test 20ºC Allowable variation of SPL after test: ±10dB. 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: ±10dB. 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: ±10dB. Lead terminals are immersed in rosin for 5 seconds and then 7 Solderability Test immersed in solder bath of +300±5ºC for 3±1 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 : a) Temperature : +5 ~ +35℃ b) Humidity : 45-85% c) Pressure : 860-1060mbar a) +5 ~ +35℃ b) 45-85% c) 860-1060mbar Judgment Test Condition: a) Temperature : +25 ± 2℃ b) Humidity : 60-70% c) Pressure : 860-1060mbar a) +25 ± 2℃ b) 60-70% c) 860-1060mbar MODEL NUMBER CUSTOMER NUMBER ST-03BL-1 I. PRODUCT TYPE REVISION DATE PAGE Magnetic Buzzer A 2015-02-26 6/6 PACKING STANDARD 1 Reel : 1000PCS Carton Box (10 Inner Box) Inner Box (1Layer Reel) Inner Box 330mmx330mmx30mm 1x1000PCS=1000PCS Carton Box 350mmx350mmx370mm 10x1000PCS=10,000PCS