烟雾报警器蜂鸣片
customer: |
part no: |
product: piezoelectric elements |
swt part no: 3s35+2.6sa |
一、configuration
appearance and dimension: see the drawing |
|
material |
piezoelectric |
configuration |
1: plane√ 2: discal |
electrode form |
a: fullness b: feedback√ |
metal material |
b: brass s: stainless steel√ n: nickel |
二,electrical specification
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 |
|
★ |
metal plate |
320±10 |
3 second or less. |
1~2 |
remark: ★ represent important parameter
appearance unit: mm
联系方式
- 地址:东莞 东莞市望牛墩镇横沥村牛顿工业园
- 邮编:523211
- 电话:86-076922620160
- 业务经理:严文波
- 手机:13316633844
- 传真:0769-22620190
- QQ:2073582831
- Email:market5@southchinae.com