SPECIFICATION FOR APPROVAL Customer： Description： Piezo Audio Transducer Sob erton Part No. ： PB-1408-1 Date：2007-03-31 Customer Model No. ： Date of Approval Authorization Signature 211 N. First Street Minneapolis, MN. 55401 612-849-6205 Http://www.sob erton.com E-mail： info@sob erton.com Approved Checked Issue Wang Xue Wen Shi Cong Tang Yu Jing 2007/03/31 2007/03/31 2007/03/31 Item Model No. SPECIFICATIONS PB-1408-1 Page 1/6 1. ELECTRICAL AND ACOUSTICAL SPECIFICATION 1-1 Rated Voltage V 12 1-2 Operating Voltage V 3-16 1-3 ＊Rated Current（Max） mA 7 1-4 ＊Min Sound Output at 10cm dB 80 1-5 ＊Resonant Frequency Hz 4000±500 1-6 Tone Nature 1-7 Operating Temperature ℃ -20~+70 1-8 Storage Temperature ℃ -30~+80 1-9 Weight g 1 1-10 Housing Material Noryl (Black) 1-11 Lead Pin Material Red Copper Single ＊Value Applying at Rated Voltage(DC)（resonant frequency，1/2 duty，square wave） Issue No Description Unit 03/31/07 Tang Yu Jing Shi Cong Wang Xue Wen Date Issue Check Approval Specifications Page Model No. SPECIFICATIONS PB-1408-1 ENVIRONMENTAL TEST Item Specifications 2-1 Storage in High temp. Storage in +80℃±2℃ test box for 240 hours，then expose to the room temperature for 2 hours without applying power. 2-2 Storage in Lower temp. Storage in -30℃±2℃ test box for 240 hours，then expose to the room temperature for 2 hours without applying power. 2-3 Storage in Humidity Storage in +40℃±2℃ 90-95%RH test box for 96 hours, then expose to the room temperature for 2 hours without applying power. +80℃ - 30℃ 2-4 +20℃ +20℃ Thermal cycle test. Make this test for 5 cycles without applying power, then expose to the room temperature for 2 hours. 2-5 Vibration test Make this test for the directions of X,Y, Z for 2 hours each (total 6 hours). Free drop a unit from the height 100cm to the surface of 10mm thick board ,three directions(X,Y,Z). 2-6 Drop test 2-7 Solderability test Soldering temp.:260±5℃ Heat applying time: 3±0.5sec. PASS CRITERION : After these tests , the change of S.P.L shall be within ±5 dB . Issue No Description 2/6 03/31/07 Tang Yu Jing Shi Cong Wang Xue Wen Date Issue Check Approval Page SPECIFICATIONS Model No. PB-1408-1 3.MEASURING METHOD(BUZZER MODE) 3-1 .Test Condition 3-1-1.STANDARD Temperature : 25±3℃ Relative humidity : 60% ~ 70%, Atmospheric pressure : 860mbar to 1060mbar 3-1-2.JUDGEMENT Temperature : 15 ~ 35℃ Relative humidity : 45% ~ 85%, Atmospheric pressure : 860mbar to 1060mbar. 3-2 . Standard Test Fixture 1.rated Voltage(Square wave): 12V 2.Resonant Frequency: 4000Hz±500 DC power Issue No Description 3/6 Current meter 03/31/07 Tang Yu Jing Shi Cong Wang Xue Wen Date Issue Check Approval Page SPECIFICATIONS Model No. PB-1408-1 4. WAVE SOLDER CURVE ( ) * Wave Soldering profile of lead-free Temp.(° C) Max. 10 sec. 250° C 245° C 235° C 200K/s--130° C ---5K/s 100° C ---forced cooling 50°C 0 0 50 100 150 200 250 300 Time(sec) Recommendable wave soldering condition is as follows. Note 1: It is requested that wave soldering should be executed after heat of product goes down to normal temperature. Note 2: Peak wave temperature of 235° C ~ 250° C maximum of 10 sec. . Issue No Description 4/6 03/31/07 Tang Yu Jing Shi Cong Wang Xue Wen Date Issue Check Approval Page Model No. SPECIFICATIONS PB-1408-1 5.DIMENSIONS Unless otherwise specified, Tolerance:±0.5(Unit: mm) 6 Lead pin 5 Epoxy 4 Masking label 2 Red Copper Resin 1 Paper 3 Housing 1 Black Noryl 2 Piezo element 1 Nickel 1 PCB 1 Epoxy Board Part No. Part Name Q’TY Material Remark 1： All parts must be meet to ROHS. 2： Wave solder allowed，wash not allowed. Issue No Description 5/6 03/31/07 Tang Yu Jing Shi Cong Wang Xue Wen Date Issue Check Approval Page Model No. SPECIFICATIONS PB-1408-1 6.PACKING adhesive tape adhesive tape Issue No Description 6/6 03/31/07 Tang Yu Jing Shi Cong Wang Xue Wen Date Issue Check Approval