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JK
Series of Polymer PTC Resettable Fuse
Introduction to the Product (JINKE-Polymer PTC Resettable
Fuse)
JK series of Polymer PTC self-resettable fuse (JINKE-Polymer
PTC Restoring Fuse) is a new-generation of overcurrent protection
product, its function corresponds to the self-resettable and
re-use fuse, use for protecting circuit from damage by high
current .it has some superiorities as self-resettale, high
security, little restoring time, good resistance to strong
current, little volume and so on. The products are classified
into 10 major categories and nearly 100 specifications based
on their rated operation voltage (Operating Voltage: 6v-600v),
holding current (Holding Current:90mA-14A) and shape, they
can be used in communication exchanger, main distributing
frame, computer mouse, keyboard, micromotor, transformer,
audio, battery and other electrical equipment as well as circuits,
to play the role of overcurrent protection.
JK250 Series of Polymer PTC Resettable Fuse Used
for Communication Equipment
Jk250 series of resettable fuse is a kind
of overcurrent protection unit which specially designed and
manufactured for the communication exchanger and distributing
frame. Has passed the repeated selective examination by the
product protectionTesting Centre of the Ministry of Information
Industry (the former Ministry of Posts and Telecommunications)
and the Bureau of Technical Supervision, this series¡¯ product
performance completely conform to the standards of the telecommunications
and posts industry.
Appearance of Products£º

Electrical characteristics(25¡æ)
Model/PDF |
Vmax
(V) |
Imax
(A) |
Ih
(mA) |
Rmax
(¦¸) |
Rmin
(¦¸) |
Fig. |
Maximum Contour Size
£¨mm£© |
A |
B |
C |
D |
|
250 |
3 |
60 |
40.0 |
26.0 |
3 |
6.0 |
9.3 |
3.8 |
5.1 |
|
250 |
3 |
80 |
22.0 |
14.0 |
3 |
6.0 |
9.3 |
3.8 |
5.1 |
|
250 |
3 |
90 |
20.0 |
10.0 |
3 |
6.0 |
9.3 |
3.8 |
5.1 |
|
250 |
3 |
110 |
12.0 |
6.0 |
4 |
6.5 |
10.0 |
3.8 |
5.1 |
|
250 |
3 |
120 |
10.0 |
5.0 |
1 |
5.5 |
5.5 |
2.6 |
--- |
|
250 |
3 |
120 |
10.0 |
6.0 |
4 |
7.0 |
10.0 |
3.8 |
5.1 |
|
250 |
3 |
145 |
6.5 |
3.5 |
4 |
7.0 |
10.0 |
3.8 |
5.1 |
|
250 |
10 |
180 |
2.2 |
1.0 |
3 |
10.2 |
14.5 |
3.4 |
5.1 |
|
250 |
10 |
180 |
3.0 |
1.0 |
4 |
10.4 |
14.5 |
3.8 |
5.1 |
|
250 |
10 |
200 |
6.0 |
3.0 |
2 |
10.5 |
17.0 |
3.8 |
5.1 |
|
250 |
10 |
400 |
3.0 |
1.0 |
2 |
10.5 |
17.0 |
3.8 |
5.1 |
|
250 |
10 |
600 |
2.0 |
0.6 |
2 |
16.0 |
18.0 |
4.5 |
5.1 |
|
250 |
10 |
800 |
1.0 |
0.4 |
2 |
20.0 |
22.0 |
4.5 |
5.1 |
|
|