KPSG-100 Kingstate Electronics Corp., KPSG-100 Datasheet - Page 3

• Manufacturer Part Number: KPSG-100
• Description: LOUDSPEAKER, PIEZO
• Manufacturer: Kingstate Electronics Corp.

Specifications of KPSG-100

• Capacitance: 65nF
• Resonant Frequency: 1.2kHz
• Capacitance Max: 84.5nF
• Colour: Device Type
• External Diameter: 50mm
• External Length / Height: 2.2mm
• Impedance: 3.5kohm
• Impedance Frequency: 1kHz
• Lead: RoHS Compliant

D. MEASURING METHOD 測量方法
1. Resonant frequency / Resonant impedance 共振頻率/共振阻抗
Piezoelectric diaphragm shall be clamped at a node point as shown in following figure to be free from any
mechanical stress, and measured its resonant frequency and resonant impedance by using vector
impedance analyzer or equivalent.
When the input frequency is swept within 100 Hz to 4 KHz, the resonant frequency is defined the frequency
where the impedance shows minimum value, and this impedance shell be the resonant impedance
將壓電式振動片之節點夾住,如下圖,在無任何機械壓力狀況下,以交流阻抗分析儀測量其共振頻率及共振阻抗.
以掃頻的方式輸入 100Hz ~ 4KHz 頻率,共振頻率為阻抗最低的那一點,且此阻抗即共振阻抗.
2. Static capacitance 靜電容量
An electrostatic capacity capacitance shall be measured at 120 Hz by using L.C.R. meter, ex.HP4194A(H.P.),
or equivalent. The part shall be clamped in the same way as the measurement of resonant frequency/
resonant impedance mentioned in the above.
以 HP4194A 測量在 120 Hz 時振動片的靜電容量. 夾住振動片方式與上述測共振頻率及共振阻抗的夾法相同.
志豐電子股份有限公司 KINGSTATE ELECTRONICS CORP 3/5 KPSG100