Self Control Fuse
DOC.No. :
ISS:WSFD4512
INDIVIDUAL SPECIFICATION SHEET
Product Name: Self Control Fuse
Part Number: WSFD4512
Revision: A/1
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/0
2021-3-31
New Release
A/1
2022-6-11
Product picture change
☞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
- 1 -
Email:customer-service@winvast.net
www.tlcet.com.cn www.winvast.cn
WSFD Series
Version No.: A/1
Document No.:T30104
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
Agency Approvals
Halogen Free
Protection for both overcurrent and overcharging
Surface Mount
Fast response
UL file：E467707
Electrical Characteristics
Part
Number
I
rated
(A)
Cell In
Series
V
max
(Vdc)
I
break
(A)
V
op
(V)
Resistance Agency Approvals
R
fuse
(mΩ)
WSFD4512 45 3 80 120 9.8-13.5 0.5-2.0
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 (WSFD9550 30A series)
150A, power on 5 ms, power off 995 ms, 10000 cycles (WSFD9550 45A series), No
Melting
Over Voltage Operation In operation voltage range, the fusing time is <1min