BeStar FT-39T-2.5B1 - Manual (Page 5)

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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 [email protected]
BESTAR ELECTRONICS INDUSTRY CO.,LTD
6 5 4
Page:05 of 08 DRG 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
U
1
FT-39T-2.5B1
signal
G
H
electrode
U
0
≥
U
0
U
1 2.5
E
F
Voltage ratio:
G
H
6 5 4
博 士 達
3 2 1