PPTC/K250 Series
Features
Radial leaded Devices
Cured,flame retardant epoxy polymer
insulating material meets UL94V-0
requirements
Bulk packaging,or tape and reel
available on most models
Applications
Almost anywhere there is a low voltage
power supply, up to DC60V and a load
to be protested, including:
Security and fire alarm systems
Analog and digital line cards
Modems and DSL
Product dimensions
Model
K250-040U
K250-060U
K250-080U
K250-090U
K250-110U
K250-120
K250-120U
K250-145U
K250-180T
K250-180U
K250-200U
K250-400U
K250-600U
K250-800U
Fig
1(2)
1(2)
1
1(2)
1
3
4
3
3
1
3
5
5
5
5
A(max)
7.4
7.4
7.4
6.0
7.4
7.0
5.5
7.0
7.0
10.2
9.0
12.0
12.0
16.0
20.0
( mm )
C(max)
4.5
4.5
4.5
3.8
4.5
4.5
2.6
4.5
4.5
4.2
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
5.1
5.1
5.1
5.1
5.1
5.1
B(max)
12.7
12.7
12.7
9.3
12.7
12.6
5.5
12.6
12.6
14.5
11.0
17.0
17.0
18.0
22.0
Physical Characteristcs
Material:Leads
K250-040U½600U
K250-800U
Tin plated copper,22AWG,0.60mm
Tin plated copper,20AWG,0.80mm
Test
Passive aging
Humidity aging
Thermal shock
Resistance to solvent
Vibration
Storage conditions:-40℃ to 85℃
Environmental Specifications
conditions
＋85℃,100hts
＋85℃,85%R.H.,100hrs
＋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
REV.2014.05.01
01 | www.spsemi.cn
PPTC/K250 Series
Electrical characteristics(25℃)
Model
Ihold
(A)
K250-040U
K250-060U
K250-080U
K250-090U
K250-110U
K250-120
K250-120U
K250-145U
K250-180T
K250-180U
K250-200U
K250-400U
K250-600U
K250-800U
Ihold
Itrip
Vmax OP
Imax
Pd
Rmin/max
Rmax
R1max
0.040
0.060
0.080
0.090
0.110
0.120
0.120
0.145
0.180
0.180
0.200
0.400
0.600
0.800
Itrip
(A)
0.08
0.12
0.16
0.18
0.22
0.24
0.24
0.29
0.65
0.65
0.40
0.80
1.20
1.60
Vmax
OP
(Vdc)
60
60
60
60
60
60
60
60
60
60
60
60
60
60
Vmax
Interrupt
Vrms
250
250
250
250
250
250
250
250
250
250
250
250
250
250
(A)
3
3
3
3
3
3
3
3
10
10
10
10
10
10
Imax
Pd max Maximum Time To Trip
Current
Time
(w)
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.8
1.8
2.4
2.8
3.2
3.6
(A)
0.5
0.5
1
1
1
1
1
1
3
3
3
3
3
5
(S)
0.2
0.5
0.25
0.5
1.1
1.2
1.2
2.5
3.0
1.5
5.0
8.0
12.0
18.0
Resistance
Rmin
Rmax
R1max
(Ω
)
30
20
0
14
10
6
5
6
3.5
1.0
2
3
1
0.6
0.4
(Ω
)
60
60
22
20
12
10
11
6.5
2.2
4
6
3
2
1
(Ω
)
80
90
33
31
16
14
16
14
4
6
9
6
5
3
Hold Current:Maximum current device will not trip in 25℃ still air.
Trip current:Minimum current at which the device will always trip in 25℃ still air
Maximum operating volatge(Vdc) device can withstand without damage at ratde current(Imax).
Maximum fault current device can withstand without damage at rated voltage.
Typical power dissipatde from device when in the tripped state in 25℃ still air environment at rated voltage
Minimum device resistance prior to tripping at 25℃.
Maximum device resistance prior to tripping at 25℃.
Maximum device resistance one hour after it is trippde at 25℃ .
Vmax Interrupt
Maximum interrupt volatge(Vac) device can withstand without damage at ratde current.
*CAUTION Operation beyond the specified rating may result in damage and possible arcing.
Thermal Derating Chart-IH(A)
Part number
K250-040U
K250-060U
K250-080U
K250-110U
K250-120/120U
K250-145U
K250-180T/180U
K250-200U
K250-400U
K250-600U
K250-800U
Maximum ambidnt operating temperatures(℃)
-40
0.060
0.090
0.124
0.171
0.191
0.225
0.269
0.300
0.600
0.900
1.200
-20
0.053
0.080
0.110
0.151
0.170
0.199
0.240
0.266
0.532
0.798
1.064
0
0.047
0.070
0.095
0.131
0.148
0.172
0.211
0.234
0.468
0.702
0.936
25
0.040
0.060
0.080
0.110
0.120
0.145
0.180
0.200
0.400
0.600
0.800
40
0.034
0.050
0.066
0.091
0.104
0.119
0.153
0.170
0.340
0.510
0.680
50
0.031
0.046
0.059
0.081
0.093
0.106
0.138
0.154
0.308
0.462
0.616
60
0.027
0.041
0.051
0.071
0.082
0.093
0.123
0.136
0.272
0.408
0.544
70
0.024
0.036
0.044
0.061
0.071
0.080
0.109
0.120
0.240
0.360
0.480
80
0.019
0.029
0.033
0.046
0.055
0.060
0.087
0.096
0.192
0.288
0.384
REV.2014.05.01
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PPTC/K250 Series
Thermal Derating Curve
Derating Curves for K250 Series
180.0
160.0
140.0
120.0
100.0
80.0
60.0
40.0
20.0
0.0
-40
-20
0
20
40
60
80
Temperature (°
C)
Percentage of Derated
Current
Typical Time-To-Trip at 25°
C
Average Time Current Curves
1000
K250-
080T/080U
100
TIME IN SECONDS
10
K250-
110U/120UT
/120T
K250-
120/120U
1
K250-
145/145U
0.1
K250-180
0.01
0
1
2
3
CURRENT IN AMPERES
Package Information
Bulk:
K250-040½180
K250-200½600
K250-800
1000pcs per bag
500pcs per bag
200pcs per bag
REV.2014.05.01
03 | www.spsemi.cn
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