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“思威特3B27+4.5EAWK蜂鸣片”参数说明
| 品牌： | 思威特 | 声道数： | 单声道 |
| 类型： | 压电式 | 驱动方式： | PWM 输出口直接驱动 |
| 外观： | 思威特 | 型号： | 3B27+4.5EAWK |
| 规格： | 3B27 | 商标： | swt |
| 频率： | 4500Hz | 直径： | 27mm |
“思威特3B27+4.5EAWK蜂鸣片”详细介绍
Customer: Part No:
Product: Piezoelectric elements SWT Part No: 3B27+4.5EAWK
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) Fs=4.5±0.5
Resonant impedance (Ω) Rr≤500Ω
Capacitance at 120Hz (NF) Co =22±30%
Standard Test Conditions Temperature：25±1℃ Humidity ：45%～75%
Operating temperature (℃) -20～+70
Storage temperature (℃) -30～+80
Piezoelectric elements
Manual Soldering process Soldering Parameter
Temp.( ℃ ) Time(Sec.) Times
Lead Free ★ silver electrode 300±10 2 second or less. 1~2
★ metal plate 320±10 3 second or less. 1~2
Solder Dot: Diameter MAX 3.0mm, High MAX 0.9mm,
Soldering sequence: 1、 silver electrode 2、 metal plate
Product: Piezoelectric elements SWT Part No: 3B27+4.5EAWK
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) Fs=4.5±0.5
Resonant impedance (Ω) Rr≤500Ω
Capacitance at 120Hz (NF) Co =22±30%
Standard Test Conditions Temperature：25±1℃ Humidity ：45%～75%
Operating temperature (℃) -20～+70
Storage temperature (℃) -30～+80
Piezoelectric elements
Manual Soldering process Soldering Parameter
Temp.( ℃ ) Time(Sec.) Times
Lead Free ★ silver electrode 300±10 2 second or less. 1~2
★ metal plate 320±10 3 second or less. 1~2
Solder Dot: Diameter MAX 3.0mm, High MAX 0.9mm,
Soldering sequence: 1、 silver electrode 2、 metal plate