ShenZhen JinRui Electronic Material Co.,Ltd
JK250
Series
Polymer PTC Resettable Fuse
Features：
JK250
Series
Radial leaded Devices
Cured,flame retardant epoxy polymer insulating material meets UL94V-0
Bulk packaging,or tape and reel available on most models
Agency recognition:UL、CSA、TUV
Rohs compliant and lead-free
Product Dimensions
Fig.1
Fig.2
Fig.3
Unit
：mm
JK250 Series
Model
JK250-020U
JK250-030U
JK250-040U
JK250-050U
JK250-060U
JK250-080U
JK250-090U
Dimensions（mm）
A(max)
7.4
7.4
7.4
7.4
7.4
7.4
7.4
B(max)
12.7
12.7
12.7
12.7
12.7
12.7
12.7
C(max)
4.5
4.5
4.5
4.5
4.5
4.5
4.5
D(typ)
5.1
5.1
5.1
5.1
5.1
5.1
5.1
Fig.4
Lead material
Tinned matel(mm)
22AWG/Φ0.6
22AWG/Φ0.6
22AWG/Φ0.6
22AWG/Φ0.6
22AWG/Φ0.6
22AWG/Φ0.6
22AWG/Φ0.6
Shape
Fig
1
1
1/2
1/2
1/2
2
2
ShenZhen JinRui Electronic Material Co.,Ltd
TEL： 0755-26546327 29356619
FAX：0755-26546562
Web Site：http://www.jkpptc.com
E-mail:customer@jkpptc.com
Add：JinKe Industry Park ,No. 310,Wuhe Road ,Guanlan,Longhua,Shenzhen ,Guangdong。
Specifications are subject to change without notice
！
Page 1 of 4
ShenZhen JinRui Electronic Material Co.,Ltd
JK250-100U
JK250-110U
JK250-120U
JK250-145U
JK250-180T
JK250-180U
JK250-200U
JK250-400U
JK250-600U
JK250-800U
JK250-1000U
JK250-1200U
JK250-1500U
JK250-2000U
7.8
7.0
7.0
7.0
10.2
9.0
12.0
12.0
16.0
20.0
20
22
25
26
12.6
12.6
12.6
12.6
14.5
11.0
17.0
17.0
18.0
22.5
22.5
28
30
32
4.5
4.5
4.5
4.5
3.8
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
10.2
JK250
22AWG/Φ0.6
22AWG/Φ0.6
22AWG/Φ0.6
22AWG/Φ0.6
22AWG/Φ0.6
22AWG/Φ0.6
22AWG/Φ0.6
22AWG/Φ0.6
22AWG/Φ0.6
20 AWG/Φ0.8
20 AWG/Φ0.8
20 AWG/Φ0.8
20 AWG/Φ0.8
20 AWG/Φ0.8
Series
1
4
4
4
2
4
3
3
3
3
3
3
3
3
Note:
①
Dimensions A, B, C is the maximum size, D values are typical tolerance of ± 0.75mm.
Thermal Derating Chart-IH（A）
Maximum ambient operating temperatures（℃）
-40℃
148%
-20℃
132%
0℃
117%
25℃
100%
30℃
91%
40℃
85%
50℃
77%
60℃
68%
70℃
61%
85℃
45%
Model
JK-250 series
Electrical Characteristic
Ihold
（mA）
20
30
40
50
60
80
90
100
110
120
145
Vmax interrupt
（V）
250
250
250
250
250
250
250
250
250
250
250
Imax
（A）
3
3
3
3
3
3
3
3
3
3
3
P
d max
（
W
）
Model
JK250-020U
JK250-030U
JK250-040U
JK250-050U
JK250-060U
JK250-080U
JK250-090U
JK250-100U
JK250-110U
JK250-120U
JK250-145U
Itrip(mA)
45
65
80
100
120
160
180
200
220
240
290
Maximum Time to Trip
Resistance(Ω)
Current(A)
0.5
0.5
0.5
0.5
0.5
1
1
1
1
1
1
Time(S)
0.5
0.5
1.5
2
2
0.5
0.8
1
2.0
2.0
5.0
R
min-
R
max
80-160
60-120
30-60
25-50
20-60
12-22
10-20
10-20
6-12
6-11
3.5-6.5
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
ShenZhen JinRui Electronic Material Co.,Ltd
TEL： 0755-26546327 29356619
FAX：0755-26546562
Web Site：http://www.jkpptc.com
E-mail:customer@jkpptc.com
Add：JinKe Industry Park ,No. 310,Wuhe Road ,Guanlan,Longhua,Shenzhen ,Guangdong。
Specifications are subject to change without notice
！
Page 2 of 4
ShenZhen JinRui Electronic Material Co.,Ltd
JK250-180T
JK250-180U
JK250-200U
JK250-400U
JK250-600U
JK250-800U
JK250-1000U
JK250-1200U
JK250-1500U
JK250-2000U
180
180
200
400
600
800
1000
1200
1500
2000
650
650
400
800
1200
1600
2000
2400
3000
4000
250
250
250
250
250
250
250
250
250
250
3
3
5
5
5
5
7
7
7
10
1.8
1.8
2.4
2.8
3.2
3.6
3.6
3.6
4.8
4.8
3
3
3
3
3
4
5
6
7.5
10
JK250
Series
3.0
1.5
5
8
12
18
20
20
20
20
1.0-2.2
2.0-4.0
3-6
1-3
0.6-2.0
0.4-1.0
0.3-0.8
0.2-0.8
0.2-0.6
0.2-0.4
I
H
=Hold current:maximum current at which the device will not trip at 25℃ still air.
I
T
=Trip current:minimum current at which the device will nalways at 25℃ still air.
V
max
=Maximum voltage device can withstand without damage at rated current.
I
max
=Maximum fault current device can withstand tithout damage at rated voltage.
T
trip
=Maximum time to trip(s) at assigned current.
P
d
=Typical power dissipation:typical amount of power dissipated by the decice when in state air environment.
R
min
=Minimum device resistance at 25℃ prior to tripping.
R
max
=Maximum device resistance at 25℃ prior to tripping.
Marking System
Environmental Specifications
Test
Passive aging
Humidity aging
Thermal shock
Resistance to solvent
Vibration
Solder reflow conditions
Wave Soldering
Soldering Temperature:260℃~270℃
Conditions
+85℃，1000hrs
+85℃，85%R.H.1000hrs
+125℃ to -55℃，10times
MIL-STD-202，Method 215
MIL-STD-202，Method 201
Resistance change
±8% typical
±8% typical
±12% typical
No change
No change
ShenZhen JinRui Electronic Material Co.,Ltd
TEL： 0755-26546327 29356619
FAX：0755-26546562
Web Site：http://www.jkpptc.com
E-mail:customer@jkpptc.com
Add：JinKe Industry Park ,No. 310,Wuhe Road ,Guanlan,Longhua,Shenzhen ,Guangdong。
Specifications are subject to change without notice
！
Page 3 of 4
ShenZhen JinRui Electronic Material Co.,Ltd
Soldering Time:≤3sec.
Soldering Position: Resettable fuse wire and the bottom ≥ 6mm。
JK250
Series
Manual soldering
Soldering Temperature:250℃~280℃
Soldering Time: ≤3sec.
Soldering Position: Resettable fuse wire and the bottom ≥ 6mm
。
Packaging and Storage
Bag quantity
JK250½020U½JK250-180U
JK250-200U½JK250-600U
JK250-800U½JK250-2000U
1000Pcs/Bag
500 Pcs/Bag
200 Pcs/Bag
Storage
The maximum ambient temperature shall not exceed 40℃.Storage temperatures higher than 40℃ could result in the
deformation of packaging materials.The maximum relative humidity recommended for storage is 70%.High humidity with
high temperature can accelerate the oxidation the oxidation of the solder plating on the termination and reduce the
solderability of the components.sealed plastic bags with desiccant shall be used to teduce the oxidation of the termination and
shall only be opened prior to use.the products shall not be stored in areas where harmful gases containing sulfu of chlorine
are present.
Warning:
Please read this specification before use the product。
Using of this product must be sure to follow the requirement of this specification，operation beyond the specified maximum
ratings or improper use may result in damage and possible electrical arcing and flame.
PPTC resettable fuses are intended for occasional over current protection. Application for repeated over current condition or
prolonged trip are not anticipated.
Please avoid contact of PPTC resettable fuses with chemical solvent. Prolonged contact will damage the device performance.
You are requested not to use our product deviating from the agreed specifications.
ShenZhen JinRui Electronic Material Co.,Ltd
TEL： 0755-26546327 29356619
FAX：0755-26546562
Web Site：http://www.jkpptc.com
E-mail:customer@jkpptc.com
Add：JinKe Industry Park ,No. 310,Wuhe Road ,Guanlan,Longhua,Shenzhen ,Guangdong。
Specifications are subject to change without notice
！
Page 4 of 4
嵌入式系统
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
