rev. page date description: magnetic buzzer a 1 of 5 01/07/2008 20050 sw 112 th ave. tualatin, oregon 97062 p h o n e phone 503.612.2300 f a x fax 503.612.2383 part number: CT-1205 specifications rated voltage 5.0 v dc operating voltage 3.0 ~ 8.0 v dc current consumption 40 ma max. applying rated voltage, 2400 hz square wave, ? duty coil resistance 45.0 6.7 sound pressure level 87 db min. (92 typ.) at 10 cm (a-weight), applying rated voltage, 2400 hz square wave, ? duty operating temperature -30 ~ +85 c storage temperature -40 ~ +85 c dimensions l12.8 x w12.8 x h7.1 mm weight 2 g material pps (s-206) terminal smd type (sn plating) rohs yes appearance drawing tolerance: 0.5 02 01 06---2006 05---2005 CT-1205 g 4705 vo-p 0v
rev. page date description: magnetic buzzer a 2 of 5 01/07/2008 20050 sw 112 th ave. tualatin, oregon 97062 p h o n e phone 503.612.2300 f a x fax 503.612.2383 part number: CT-1205 measurement method mechanical characteristics item test condition solderability lead terminals are immersed in solder bath of 270 5c for 3 1 seconds. soldering heat resistance the buzzer follows the reflow temperature curve to test its reflow thermo stability. terminal mechanical strength lead pads will be soldered onto the pcb, the force of 9.8n (1.0kg) is applied behind the part for 10 seconds. vibration the buzzer will be measured after applying a vibration amplitude of 1.5 mm with 10 to 55 hz band of vibration frequency to each of the 3 perpendicular directions for 2 hours. drop test the part will be dropped from a height of 75 cm onto a 40 mm thick wooden board 3 times in 3 axes (x, y, z) for a total of 9 drops. evaluation standard 95% of the lead pad surfaces must be covered with fresh solder (except the edge of the terminal). no interference in operation. no damage or cutting off. after the test, the part will meet specifications without any damage to its appearance. the spl should be within 10db compared with the initial measurement. typical frequency response curve 50 60 70 80 90 100 20 200 2k 20k db hz
rev. page date description: magnetic buzzer a 3 of 5 01/07/2008 20050 sw 112 th ave. tualatin, oregon 97062 p h o n e phone 503.612.2300 f a x fax 503.612.2383 part number: CT-1205 environment test item test condition high temp. test after being placed in a chamber at +85c for 96 hours. low temp. test after being placed in a chamber at -40c for 96 hours. thermal shock the part will be subjected to 10 cycles. one cycle will consist of: temp. cycle test the part will be subjected to 10 cycles. one cycle will consist of: evaluation standard after the test, the part will meet specifications without any damage to its appearance and performance. after 4 hours at 25c, the spl should be within 10db compared with the initial measurement. reliability test item test condition operating (life test) 1. continuous life test: the part will be subjected to 72 hours of continuous operation at +70c with 5 v, 2400 hz applied. 2. intermittent life test: a duty cycle of 1 minute on, 1 minute off, a minimum of 10,000 times at room temp (+25 10c) with 5 v, 2400 hz applied. evaluation standard after the test, the part will meet specifications without any damage to its appearance and performance. after 4 hours at 25c, the spl should be within 10db compared with the initial measurement. +85c a,b : 90~98%rh c : 80~98%rh a b +25c 3hrs 120.5hrs 3hrs c 24hours +85c -40c 30 min. 30 min. 60 min. test conditions standard test condition a) temperature: +5 ~ +35c b) humidity: 45 - 85% c) pressure: 860-1060 mbar judgement test condition a) temperature: +25 2c b) humidity: 60 - 70% c) pressure: 860-1060 mbar
rev. page date description: magnetic buzzer a 4 of 5 01/07/2008 20050 sw 112 th ave. tualatin, oregon 97062 p h o n e phone 503.612.2300 f a x fax 503.612.2383 part number: CT-1205 recommended temperature profile for reflow oven time [sec] peak temp 217c 260c 60~180sec 60~150sec smt reflow temperature profile (pb_free) 255c 20~40 sec c 150c 200c recommended land pattern land pattern
rev. page date description: magnetic buzzer a 5 of 5 01/07/2008 20050 sw 112 th ave. tualatin, oregon 97062 p h o n e phone 503.612.2300 f a x fax 503.612.2383 part number: CT-1205 packaging
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