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9550 Self Control
Fuse
DOC.No. :
ISS:WSFD Series
INDIVIDUAL SPECIFICATION SHEET
Product Name:
9550 Self Control Fuse
Part Number: WSFD Series
Revision: A
Dongguan TLC Electronic Technology Co., LTD
No.18,5th GaoLi Road,TangXia Town,DongGuan,GuangDong,P.R China 523710
TEL: 86-0769-3892 0511
FAX: 86-0769-8793 2077
Http: www.tlcet.com.cn
Rev.
Effective Date
Changed Contents
A
2021-3-31
New Release
☞The individual specification sheet are the property of Dongguan TLC electronic technology Co.,Ltd and shall
not be copied or used as commercial purposes without permission.
PREPARED BY
APPROVED BY
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Description
WSFD Series is a three terminals surface mountable battery protector
that can protect against both overcurrent and overcharging.It comprises a
fuse element to ensure stable operation under normal electrical current and
to cut off the current when overcurrent occurs.It also comprises a resistive
heating element that could be used in combination with a voltage detecting
means, such as IC and FET. When overvoltage is detected, it will generate
heat to blow the fuse to achieve overvoltage protection.
Features
Halogen Free
Protection for both overcurrent and overcharging
Surface Mount
Fast response
Electrical Characteristics
I
rated
(A)
Cell In
Series
V
max
(Vdc)
I
break
(A)
V
op
(V)
Resistance
Agency Approvals
R
heater
(Ω)
R
fuse
(mΩ)
30
3
62
80
8.4-13.2
3.2-5.2
0.5-2.5
×
×
30
4
62
80
11.1-18.4
6.3-9.3
0.5-2.5
×
×
30
5
62
80
14.0-23.4
10.0-15.0
0.5-2.5
×
×
30
6-7
62
80
20.2-31.5
18.8-31.2
0.5-2.5
×
×
30
9-10
62
80
28.0-46.9
40.0-60.0
0.5-2.5
×
×
30
12-14
62
80
39.6-62.0
72.4-120.6
0.5-2.5
×
×
45
3
62
120
9.8-13.5
1.9-3.4
0.4-2.0
×
×
45
4
62
120
13.0-18.4
3.4-6.0
0.4-2.0
×
×
45
5
62
120
16.7-23.5
5.6-9.9
0.4-2.0
×
×
45
6-7
62
120
22.3-31.5
10.0-17.7
0.4-2.0
×
×
45
9-10
62
120
33.0-46.9
22.0-38.7
0.4-2.0
×
×
45
12-14
62
120
43.7-62.0
38.5-68.0
0.4-2.0
×
×
Current Capacity
100% x I
rated
, No Melting
Cut Time
200% x I
rated
, < 1 min
Interrupting Current
100A, power on 5 ms, power off 995 ms, 10000 cycles (ITV9550 30A series)
150A, power on 5 ms, power off 995 ms, 10000 cycles (ITV9550 45A series), No Melting
Over Voltage Operation
In operation voltage range, the fusing time is <1min
1)I
rated
= Current carrying capacity that is measured at 40℃ thermal equilibrium condition
2)I
break
= The current that the fuse element is able to interrupt
3)V
max
= The maximum voltage that can be cut off by fuse
4)V
op
= Range of operation voltage
5)
R
heater
= The resistance of the heating element
6)R
fuse
= The resistance of the fuse element
7)Cells in series = Number of battery cells connected in series in the circuit for WSFD device to protect.
•
Value specified is determined by using the PWB with 6mm*2oz copper traces, AWG10 covered wire, and 0.6mm
glass epoxy PCB for WSFD 30A Series
•
Value specified is determined by using the PWB with 25mm*2oz copper traces, AWG8 covered wire, and 0.6mm
glass epoxy PCB for WSFD 45A Series
• Specifications are subject to change without notice.