User Manual

This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
and shall not be used in whole or in part without its written content
Note:
5.1 Lead wire (UL 1571 #24AWG)to be soldered on the silver by handsoldering
at 300 10°C duration 2 0.5 sec
5.2.a Pull force by houizontal direction is ≥20N
5.2.b Pull force by vertical direction is ≥2.5N
李红元
Approved by:
Note
Date Drawn
Rev.
www.be-star.com [e-mail]
BESTAR ELECTRONICS INDUSTRY CO.,LTD
6 5 4
Page:05 of 08DRG NO: BS/TEY01.117J
3 2 1
09/08/31
汤浩君
赵峥
FIG.3 Direction of Lead Wire
(vertically)
J 09/08/31 汤浩君
I 09/05/11 汤浩君
H 09/01/17 汤浩君
FIG.2 Direction of Lead Wire
(horizontally)
A
B
Date:
Checked by:
Drawn by:
C
D
FT-39T-2.5B1
Piezo Ceramic Element
A
B
90
C
D
4. Voltage ratio
The voltage ratio between electrode input and feedback electrode output at
resonant frequency is more than 2.5,see below
Feedback electrode
5."Pull off"force between silver and ceramic layer
S
E
F
FIG1
U1
FT-39T-2.5B1
signal
G
H
electrode
U0
≥
U0
U1
2.5
E
F
Voltage ratio:
G
H
6 5 4
博 士 達
3 2 1