Polymer PTC Resettable Fuse：KSM Series
：
Strap Type KSM Series
Features
1.
2.
3.
4.
5.
RoHS compliant
Broadest range of resettable devices available in the industry
Current ratings from 1.2 to 4.2A
Maximum voltage: 15V, 24V
Operating temperature range : -40 ~ +85℃
6. Agency Recognition :UL /cUL/TUV
Recommended Applications
1. Rechargeable battery packs
Part No. Code
K
1
S
2
M
3
0
4
1
5
5
6
0
7
1
8
2
9
0
10
N
11
B
12
Y
13
14
15
16
Product code
K
Thinking
PPTC
thermistor
Form factor
S
Strap
M
L
V
H
Usage
Metal hydride
device
Lithium ion
device
Very low
temp. device
High power
device
Vmax.
operation
015
024
15V
24V
I hold
0008
0090
0014
0135
0170
0600
1000
1200
0.08A
0.9A
0.14A
1.35A
1.7A
6A
10A
12A
Shape of lead
S
D
N
Slitted lead on
single side
Slitted lead on
duel side
Noslitted lead
Packaging
B
R
Bulk
Taping & Reel
Internal Control
Code
Y
ROHS
Control
Dimensions
Marking: xxx=Vmax. operation, yyyy=I hold
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
All specifications are subject to change without notice.
1
www.thinking.com.tw
2006.06
Polymer PTC Resettable Fuse：KSM Series
：
Strap Type KSM Series
A
Part no.
Min.
KSM0150120
KSM0150175
KSM0240200
KSM0240350
KSM0240420
19.9
20.9
21.3
28.4
30.6
Max.
22.1
23.1
23.4
31.8
32.4
Min.
4.9
4.9
10.2
13.0
12.9
Max.
5.2
5.2
11.0
13.5
13.6
Min.
0.6
0.6
0.6
0.6
0.6
Max.
1.0
1.0
1.0
1.0
1.0
Min.
5.5
4.1
5.0
6.3
5.0
Max.
7.5
5.5
7.6
8.9
7.5
Min.
3.9
3.9
4.8
6.0
6.0
Max.
4.1
4.1
5.4
6.6
6.7
B
C
D
(Unit: mm)
F
Characteristics(23℃)
℃
Ihold
@ 23℃
(A)
Itrip
@ 23℃
(A)
Pd
(Max.)
(W)
Maximum
time to trip
(A)
(Sec.)
Resistance ( )
Initial (Ri)
Min.
Max.
Post trip (R1)
Max.
Safety
approvals
UL/cUL
TUV
Vmax.
Part no.
(V
dc
)
Imax.
(A)
KSM0150120
KSM0150175
KSM0240200
KSM0240350
KSM0240420
15
15
24
24
24
100
100
100
100
100
1.20
1.75
2.00
3.50
4.20
2.70
3.80
4.40
6.30
7.60
1.20
1.50
1.90
2.50
2.90
6.00
9.00
10.00
20.00
20.00
5.0
4.0
4.0
3.0
6.0
0.085
0.050
0.030
0.017
0.012
0.160
0.090
0.060
0.031
0.024
0.220
0.120
0.100
0.050
0.040
√
√
√
√
√
√
√
√
√
√
Note : UL&cUL File No. E138827
TUV File No. R50066599
Typical time to trip curve at 23℃
℃
Time to trip (sec.)
1= KSM0150120
2= KSM0240175
3= KSM0240200
4= KSM0240350
5= KSM0240420
Fault current (A)
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
All specifications are subject to change without notice.
2
www.thinking.com.tw
2006.06
Polymer PTC Resettable Fuse：KSM Series
：
Strap Type KSM Series
Thermal derating curve
Derating Curves for KSM Series
180%
Percantage of Derating Curve
160%
140%
120%
100%
80%
60%
40%
20%
0%
-40
-20
0
20
40
60
80
Temperature (°C)
Reliability test
Item
Passive aging
Test condition/methods
70℃, 1000hrs
40℃, 95%RH, 1344hrs
Humidity storage
Mil-Std 202, method 103 condition D
50 cycles at a 120% maximum current (Imax) and
Cycle life
maximum voltage (Vmax).
UL 1434
Trip endurance
Steady-state operating life
Mil-Std 750, method 1026
Vmax, Imax, 48Hrs
Vmax, Iss, 1000hrs
Normal Appearance
Normal Appearance
Normal Appearance
±5% typical resistance change
Criteria
±10% typical resistance change
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
All specifications are subject to change without notice.
3
www.thinking.com.tw
2006.06
Polymer PTC Resettable Fuse：KSM Series
：
Strap Type KSM Series
Packaging
Bulk packing
Series
KSM (0120~0175)
KSM (0200~0420)
Quantity PCS/Bag
1000
500
Ammo packing
Series
KSM (0120~0175)
KSM (0200~0420)
Quantity PCS/Box
10000
5000
Carton packing
Series
KSM (0120~0175)
KSM (0200~0420)
Quantity PCS/Box
60000
30000
Storage condition of products
( I ) Storage Conditions :
1.Storage Temperature : -10℃~+40℃
2.Relative humidity :
≦75%RH
3.Thermistors must be kept away from sunlight and stored in a non-corrosive atmosphere.
( II ) Period of Storage : 1 year
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
All specifications are subject to change without notice.
4
www.thinking.com.tw
2006.06
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