| 产品名称 | 烟雾报警器蜂鸣片 |
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| 公司名称 | 东莞思威特电子有限公司 |
| 价格 | 面议 |
| 规格参数 | 品牌:swt 型号:3S35+2.6SA |
| 公司地址 | 东莞市望牛墩镇横沥村牛顿工业园 |
| 联系电话 | 86-076922620160 13316633844 |
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customer: |
part no: |
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product: piezoelectric elements |
swt part no: 3s35+2.6sa |
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 |
b: brass s: stainless steel√ n: nickel |
二，electrical specification
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resonant frequency (khz) |
fr =2.6±0.5 |
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resonant impedance (ω) |
rr≤500 |
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main electrode static capacity (nf) |
cm =30±30% |
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feedback electrode static capacity (nf) |
cf =4±30% |
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standard test conditions |
temperature：25±1℃ humidity ：45%～75% air pressure：86～106kpa |
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operating temperature (℃) |
-20～+70 |
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storage temperature (℃) |
-30～+80 |
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piezoelectric elements manual soldering process |
soldering parameter |
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temp.( ℃ ) |
time(sec.) |
times |
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lead free |
★ |
silver electrode |
300±10 |
2 second or less. |
1~2 |
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★ |
metal plate |
320±10 |
3 second or less. |
1~2 |
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remark: ★ represent important parameter
appearance unit: mm