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By certification 
Units ultra thin 40mm 8ohm 0.5w mylar speaker
Model#XDEC-40M-4
Part I.Products Description
Ultra thin 40mm 8ohm 0.5w Mylar Speaker
As you can see this decorative pattern diaphragm mylar speaker specification is 40mm diamter,8ohm,0.5watt rated power,1.0watt max power,total thickness only 6.5mm,very thin,is a ultra thin mylar speaker driver which mean this speaker can work in such 8ohm impedance,0.5watt rated power and can produce a nice full range sound.People love to use this speaker in Mini Projector Speaker,Projector Speaker.Also can use in blood pressure monitor,reading pen,walkie-talkie,doorbell,building security and so on.It's a good choices to use this waterproof mylar speaker for outdoor sound products.
Part II. Dimension
Part III. Parameters
NO. | Item | Specification | Condition |
1 | Dimensions | 40*6.5H mm | Â |
2 | Nomial Impedance | 8±15% OHM | At 1.0KHz / 0.89V |
3 | Input power | Rated:0.5W/ Max:1.0W | At 2.0V /2.83V |
4 | Resonance Frequency | 590±20%Hz | At0.89V |
5 | S．P．L． | 95±3 dB(0.1W/0.1M) | At0.8K/1.0K/1.2K/1.5KHz (Average) |
6 | Frepuency Range | F0~20KHZ | Output S.P.L. -10dB |
7 | Distortion | 5%Max | At 1.0KHz 0.1W/0.1M |
8 | Buzze & Rattle | Not be audible sine wave between at 2.0V /200~5KHz. | Â |
9 | Polarity | Diaphragm shall move forward. | Â |
10 | Load test | Must be normal after load test:white noise 48 hours. | Â |
11 | High TEMP test | After having been in a test chamber for 48 hours at the condition of | Â |
12 | Cold TEMP test | After having been in a test chamber for 48 hours at the condition of | Â |
13 | Humidity test | After having been in a test chamber for 48 hours at the condition of | Â |
14 | Drop test | The speaker shall be dropped 2 times, clause 8 shall be satisfied. | Â |
15 | Weld | terminal weld: 350℃/≤2~3sec*2bit. |  |
16 | Store temp | Minus 25℃ To +60℃ |  |
Part IV. Our company
Shenzhen Xuanda Electronics Co., Ltd(XDEC) was founded in 2009 and is specializing in researching, designing, manufacturing of various speaker units and microphone units which are widely used for headphone, intercom, telephone, cordless phone,tablet-pc,notebook-pc, TV, navigator, headset, recorder, Mini Speaker, etc.
Part V. Partner
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http://www.xdecspeakerdriver.com/
