惠州市鑫亚图电子有限公司
25年专业生产蜂鸣器 蜂鸣片
厂家自产自销，支持定制响应速度，精准快
产品详情
SPECIFICATION
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Customer: |
Part No: |
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Product: Piezoelectric elements |
A&TPart No: AT-35G-3.2CSD大圆圈 |
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一、Configuration |
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Appearance and dimension: see the drawing |
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Material |
Piezoelectric |
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Configuration |
1:plane√ 2:discal |
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Electrode form |
A: fullness √ B: feedback |
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Metal material |
T: brass G: stainless steel√ N: nickel |
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二，Electrical specification |
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Resonant frequency (kHz) |
Fs=3.2±0.5KHz |
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Resonant impedance (Ω) |
≤500Ω |
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Capacitance at 1000Hz CF (PF) |
28000±30% |
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Capacitance at 1000Hz CM (PF) |
4000±30% |
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Operating temperature (℃) |
-20～+70 |
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Storage temperature (℃) |
-30～+80 |
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Piezoelectric elements |
Soldering Parameter |
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Temp.( 0C) |
Time(Sec.) |
Times |
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Inclusive Lead |
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silver electrode |
280±10 |
1.5 second or less. |
1~2 |
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metal plate |
320±10 |
2 second or less. |
1~2 |
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Lead Free |
★ |
silver electrode |
320±10 |
2 second or less. |
1~2 |
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★ |
metal plate |
350±10 |
3 second or less. |
1~2 |
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Solder Dot: Diameter MAX 3.0mm, High MAX 1.5mm, |
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Remark: ★ A&T Instance Soldering Process
APPEARANCE UNIT：mm 
MORE SPECIFICATIONS FOR
PIEZOELECTRO TRANSDUCER
1、Oscillating system
Basically, sound source of a piezoelectric sound component is a piezoelectric diaphragm consists of a piezoelectric ceramic plate which have electrodes on both sides and a metal plate (brass or stainless steel etc.).
When alternating voltage is applied to piezoceramic element, the element expands or shrinks diametrically. This characteristic is utilized to make vibration plate bend to generate sounds.
2、Soldering procedures
A lead wire is needed to apply voltage to the piezoelectric diaphragm. When using a soldering iron, the optimum temperature for soldering a lead wire to a metal plate is 280±100C for 3 seconds and the same temperature for the ceramic silver electrode for 1～1.5 second or less. The lead wire should be as fine as possible, as it works as a load restricting oscillation of the piezoelectric diaphragm.
| Hight | 1.5mm MAX | |
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a. Test condition: Solder Dot |
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| Diameter | 2.5m-3.0mm MAX |
b. Characteristics
1、 Perpendicular pull
| Thickness Of Ceramic | Weight (g) |
| 0.10mm | 400 |
| 0.15---0.25mm | 700 |
2、Horizontal pull
| Thickness Of Ceramic | Weight (g) |
| 0.10mm | 700 |
| 0.15---0.25mm | 2000 |
3、characteristics and measuring method
a. Characteristics
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TYPE |
Resonant frequency |
Resonant impedance |
Capacitance |
Insulation resonance |
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Piezoceramic |
● |
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● |
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b. Measuring Procedure
When the piezoelectric diaphragm oscillates freely in air, the node does not move as show in fig.5 and fig.6.With this point held with a measuring terminal, the resonant frequency and resonant impedance are measured in the constant-current circuit.
4、Reliability Test
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ITEM |
TEST CONDITION AND REQUIREMENT |
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4.1 |
High Temperature |
将蜂鸣片置于 70±2℃ 中，试验保温时间不少于30min，在高温下测试。 |
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4.2 |
Low Temperature |
将蜂鸣片置于 -10±2℃ 中，试验保温时间不少于30min，在低温下测试。 |
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4.3 |
Test Temperature Cycle |
蜂鸣片在-10℃暴露30min, 在70℃暴露30min，五次循环后，试验后在常温下恢复1h，电性能变化符合以下： |
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4.4 |
Humidity 湿热 |
蜂鸣片置于温度在+32℃，相对湿度在90%-5%~90%+5%中，保持96h后，试验后在常温下恢复2h测试，电性能变化符合以下： |
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4.5 |
Drop Test 跌落 |
将蜂鸣片放置在水平位置，金属片的一面朝下，从1000mm高度自由跌落到硬木版上，跌落两次后，检查外观并测量电性能。 |
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4.6 |
Vibration Test 振动 |
将蜂鸣片置于10~55Hz、振幅在0.35mm、扫频循环5次振动等级中，在两个互相垂直的轴线方向上振动试验后，应无机械损伤，电性能变化符合规格书要求。 |
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4.7 |
Silver Solderability Test |
用20W内热式电烙铁，HISnPb39焊锡丝，松香酒精焊剂，焊接时间小于5s，焊接面积3m㎡~5m㎡，焊接点堆积高度小于2mm，在蜂鸣片银层面上，按垂直和水平方向焊接两根与蜂鸣片成90°±5°和180°±5°的导线，在导线上施加以下负荷，负荷时间为10s±1s。 |
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4.8 |
Adhesive strength |
用直径与压电陶瓷片相同的圆柱体金属棒，长度为60mm左右，把蜂鸣片的金属面贴在金属棒的曲面上，将其压至与曲面相吻合后，检查外观。蜂鸣片经折弯一次后，应无瓷片脱落和翘起现象，但允许龟裂。 |
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服务理念
专业生产蜂鸣片，蜂鸣器，喇叭，咪头及超声波传感器厂家
经营目标
立足高新技术，争创优质企业
经营宗旨
技术让用户放心，服务让用户满意
共赢法则
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关键词:
- 蜂鸣器
- 蜂鸣片
- 喇叭咪头
- 传感器厂家
- 雾化片
