| 常州揚聲器fds-130047r8w0.5超薄喇叭福鼎電子元器件廠家直供 |
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價格： 元(人民幣) | 產(chǎn)地：本地 |
| 最少起訂量：1 | 發(fā)貨地：本地至全國 | |
| 上架時間：2019-05-10 15:46:58 | 瀏覽量：103 | |
佛山市拉威尼音響設(shè)備有限公司
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| 經(jīng)營模式：其他 | 公司類型：生產(chǎn)加工 | |
| 所屬行業(yè)：揚聲器 | 主要客戶：全國 | |
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| 聯(lián)系人:廖 () | 手機: |
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| 郵箱: | 地址:廣東廣州番禺區(qū)南雙玉村南山工業(yè)園10號3樓 |
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加工定制是 品牌江陰福鼎 型號fds-130047r8w0.5 種類紙盆式(直接輻射) 用途筆記本 外形圓形 組成方式單紙盆 振膜材料非紙質(zhì) 磁路形式內(nèi)磁式 頻率特性高音（高頻） 額定功率0.5w 額定阻抗8ω 頻率響應(yīng)0.95khz 靈敏度88db/w 性噪比88db 是否跨境貨源否 展開 常州揚聲器fds-130047r8w0.5超薄喇叭福鼎電子元器件廠家直供 點我去除廣告 description 常州fds-130047r8w0.5揚聲器超薄喇叭發(fā)音福鼎廠家直銷 描述 1.characteristics 1.1electrical and mechanical characteristics item specifications 01 type dynamic speaker 02 dimension external diameter13 mm 03 rated input power 0.5w (long time) 04 max. input power 1.0w for 1 minute 05 impedance 8 ohm ± 15% at2000hz. 06 resonance frequency (fo) 950hz ± 20% at fo, 1v 07 sensitivity (s.p.l.) 88db (0.1w / 0.1m) ± 3 db atave1.0k,1.2k,1.5k, 2.0khz. 08 frequency range fo –20khz 09 total harmonics distortion max 8 % at 1 khz,0.5w. 10 voice coil diameter7.4mm 11 magnet rare earth permanent (nd-fe-b) magnet φ6.9 x1.2mm 12 weight 0.65g ± 0.3g 13 appearance should not exist any obstacle to be harmful to normal operation; damages, cracks, rusts and distortions, etc. 14 operation test must be normal at program source – 0.5w 15 buzz, rattle, etc. should not be audible at2.0v sine wave between fo to 20khz 16 polarity when positive voltage is applied to the terminal marked (+), diaphragm should move to the front. 17 terminal strength capable of withstand 1kg load for 30 seconds without resulting in any damage or rejection. 18 temperature operating temperature: -20℃ to +60℃ storage temperature: -30℃ to +70℃ 2.2. measuring method test condition a.standard temperature : 15 ~ 35℃ relative humidity : 25% ~ 85%, atmospheric pressure : 860mbar to 1060mbar. atmospheric pressure : 860mbar to 1060mbar. b.basic temperature : 20±3℃ relative humidity : 60% ~ 70%, atmospheric pressure : 860mbar to 1060mbar c.standard test fixture 1.input power :0.5w (2.0v ) 2.zero level : -db 3.mode : speaker 4.potentiometer range : 50db 5.sweep time : 0.5sec  3.frequencyresponse curve  4.dimension  5. reliability test items. specifications 01 high temp. test keep 96 hours at +70℃±3℃ and leave 3 hours in normal temperature and then check 02 low temp. test keep 96 hours at -30℃±3℃ and leave 3 hours in normal temperature and then check 03 humidity test keep 96 hours at + 60℃±3℃ relative humidity 95% and leave 3 hours in normal temperature and then checked. 04 temp./humidity cycle the part shall be subjected 5 cycles. one cycle shall be 12 hours and consist of;  05 thermal cycle test. low temperature: -30℃±3℃, temperature:+70℃±3℃, cycle: 1 hour/cycle each, and then keep 5 cycles in a room. 06 vibration 10~200~10hz sin-wave sweep 15min. 5g(constant) x,y, z 3 direction. 2 hours each, total 6 hours. 07 fix drop test fix on jig. then drop from 152cm height to the concrete floor x, y, z 6 direction. 5 times each, total 30 times. 08 free drop test free drop from 100cm height to the concrete floor x, y, z 6 direction. 1 times each, total 6 times. 09 rated power test rated power white noise is applied for 96 hours 10 max power test max power 1 min on – 2 min off 10 cycles. 11 terminal strength test capable of withstand 1kg load for 30 seconds without resulting in any damage or rejection. criterion: after these test , the change of s.p.l shall be within ±3 db . soldering condition recommend using constant branding iron in 30w, and in temperature range 350°c. soldering time not over2 seconds. |
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