Piezoelectric Elements Piezo Diaphragm for Ultrasonic Tweeter
Product Description
Piezoelectric Elements Piezo Diaphragm for Ultrasonic Tweeter
WuHan Piezohannas Tech.Co .,Ltd is a manufactuer of piezoelectric ceramics ,ultrasonic transducers with strong technology force.With a quality management system and research & development sector,our products are extensively used in most applications.
PIEZO ELEMENT SPECIFICATION
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=4.0±0.5 | |||||
Resonant impedance (Ω) | Rr≤800 | |||||
Capacitance at 120Hz (nF) | Co =100±30% | |||||
Standard Test Conditions | Temperature：25±1℃ Humidity ：45%～75% Air Pressure：86～106kPa | |||||
Operating temperature (℃) | -20～+60 | |||||
Storage temperature (℃) | -30～+70 | |||||
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 1.5mm, Soldering sequence: 1 、 silver electrode 2 、 metal plate | ||||||
Remark: ★Represent important parameter APPEARANCE UNIT：mm
Specification and Test Data