買家須知：
&sp;
1.所標(biāo)價(jià)格為參考價(jià)，為節(jié)省時(shí)間，將同類產(chǎn)品同一標(biāo)題列出，但價(jià)格并非統(tǒng)一，拍下前請聯(lián)系賣家。（注：店內(nèi)產(chǎn)品均稅，可開普票，開票需加稅金）。另有大量庫存沒有上傳，如果您還沒有查到您想要的型號，請與我們聯(lián)系，我們可以為您研發(fā)制作偏冷門的電子元件！
&sp;
2.電子元件是型的產(chǎn)品，技術(shù)含量較高，由于本身可能存在著多種品牌，后輟與封裝，所以可能導(dǎo)致參數(shù)與性能的差異，有不慎，很有可能導(dǎo)致元件購買錯(cuò)誤(此種失誤，非質(zhì)量問題！)，為了更好的解決您的問題，請您在購買我們元件前，將您所需產(chǎn)品的品牌、封裝、腳位及后綴告訴我們！以便我們能準(zhǔn)確的發(fā)貨。為了保障您的利益，切勿直接拍下并付款?。?！
&sp;
3.為避免運(yùn)輸過程中造成貨物損壞或丟失給您帶來損失，請您在收到貨物時(shí)認(rèn)真檢查，如有問題請勿簽收！時(shí)間與我取得聯(lián)系，共同解決問題。勿在簽收后提出數(shù)量不足，貨不對板的情況，謝謝合作！
&sp;DCRIPTION&sp; 高分貝電磁無源貼片蜂鳴器3V D-050020頂發(fā) 福鼎描述
A. SCOPE&sp;
This specification appli magnetic buzzer,&sp;D-050020F-03040N
B. SPECIFICATION
| . | 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. 110 | at Rated Voltage |
5 | Sound Prsure Level | dB | MIN. 75 | at 10cm at Rated Voltage |
6 | Coil Ristance | Ω | 12±3 | |
7 | Operating Temperature | ℃ | -20 ~ +70 | |
8 | Storage Temperature | ℃ | -30 ~ +80 | |
9 | Dimension | mm | 5.0 x 5.0 x H2.0 | See appearance drawing |
10 | Weight (MAX) | gram | 0.1 | |
11 | Housing Material | LCP( Black ) | ||
12 | Leading Pin | &sp;Tin Plated Br(Sn) | See appearance drawing | |
13 | Environmental&sp;&sp; | &sp;RoHS |
&sp;
C. APPEARANCE DRAWING&sp;&sp;
&sp;
Tol : ± 0.3&sp;&sp;&sp;&sp;&sp; Unit: mm
&sp;
D.TTING METHOD&sp;&sp;&sp;&sp;
Standard Measurement conditions
Temperature:25±2℃&sp; Humidity:45-65%
Acoustic Characteristics:
The oscillation frequency, current consumption and sound prsure are measured by the&sp;
measuring instruments shown below
&sp;
In the measuring tt, buzzer is placed as follows:
&sp;&sp;
E. Tical Frequency Rponse Curve
&sp;
F.&sp;Recommend Driving Circuit&sp;
&sp;
The base current Ib should high eugh so that it saturat the collector current of the transistor with the CB load.
&sp;
G.&sp;Soldering Condition
(1)Recommendable reflow soldering condition is as follows
(Reflow soldering is twice)
te:It is requted that reflow soldering should be executed after heat of product go down to rmal.
&sp;&sp;Heat ristant line
(Used when heat ristant reliability tt is performed)
(2)Manual soldering
&sp;&sp;&sp;Manual soldering temperature 350 ℃ within 5 sec.
&sp;
H.&sp;RELIABILITY&sp;TT
. | ITEM | TT CONDITION AND REQUIREMENT |
1 | High Temperature | After being placed in a chamber with 80 |
2 | Low Temperature | After being Placed in a chamber with -30 |
3 | Humidity Tt | After being Placed in a chamber with 90-95% R.H. at 40 |
4 | Temperature Cycle | The part shall be subjected to 5 cycl. One cycle shall be consist of: |
5 | Drop Tt | Drop on a hard wood board of 4cm thick, any directions ,6 tim, at the height of 75cm . |
6 | Vibration Tt | After being applied vibration of amplitude of 1.5mm with 10 to 55 Hz band of vibration frequency to each of 3 perpendicular directions for 2 hours . |
7 | Solderability | Lead terminals are immersed in rosin for 5 seconds and then immersed in solder bath of +300 |
8 | Terminal Strength | The force of 9.8N(1.0kg) is applied to each terminal in axial direction for 10 seconds. |
TT CONDITION.&sp;
Standard Tt Condition&sp;&sp;&sp;&sp;&sp;&sp;&sp;&sp;&sp;&sp;&sp;&sp;&sp; :&sp;&sp;&sp;&sp;&sp; a) Temperature : +5 ~ +35℃&sp; b) Humidity : 45-85% &sp;&sp;&sp;&sp;&sp;&sp; c) Prsure : 860-1060mbar&sp;
Judgment Tt Condition&sp;&sp;&sp;&sp;&sp;&sp;&sp;&sp;&sp;&sp;&sp;&sp; :&sp;&sp;&sp;&sp;&sp; a) Temperature : +25 ± 2℃&sp;&sp; b) Humidity : 60-70%&sp;&sp;&sp;&sp;&sp;&sp;&sp; &sp;c) Prsure : 860-1060mbar
I. PACKING STANDARD
江陰市福鼎通訊器材有限公司成立于1994年，生產(chǎn)各類蜂鳴器，喇叭，咪頭產(chǎn)品。公司在蜂鳴器及訊響器件的領(lǐng)域已有20多年的經(jīng)驗(yàn)，擁有完整、科學(xué)的質(zhì)量管理體系，以及的自動(dòng)化設(shè)備。
&sp;
公司年產(chǎn)蜂鳴器過5000萬個(gè)，其中貼片蜂鳴器銷量過2000萬片，過一半的貼片蜂鳴器被廣泛應(yīng)用于高端可穿戴設(shè)備及移動(dòng)消費(fèi)類電子中，在同行業(yè)。
&sp;
為了產(chǎn)品的質(zhì)量和性，我們擁有專門的管理和強(qiáng)大的研發(fā)團(tuán)隊(duì)。目前公司有將近20000平方米的現(xiàn)代化廠房，300多名員工，技術(shù)開發(fā)人員20多人。我們已經(jīng)和來自香港、臺灣、日本、韓國、加拿大，美國以及其他的客戶建立長期的合作關(guān)系。
&sp;
&sp;
