PPTC/ISM Series
Features
Surface Mount Devices
Lead free device
iSurface Mount packaging for automated
rassembly
BAgency redognition:UL
Applications
Almost anywhere there is a low voltage
power supply, up to DC15V and a load
to be protested, including:
Computer mother board,Modem.USB hub
PDAs & Charger,Analog & digital line card
Digital cameras,Disk drivers, CD-ROMs
Dimensions (mm)
A
1.0
1.0
1.2
D
E
C
Product dimensions (mm)
Model
min
ISM010
ISM020
2.00
2.00
A
max
2.2
2.2
min
1.2
1.2
B
max
1.5
1.5
min
0.50
0.45
C
max
1.0
1.0
D
min
0.2
0.2
E
min
0.1
0.1
ISM035
ISM050
ISM075
ISM100
ISM110
ISM125
2.00
2.00
2.00
2.00
2.00
2.00
2.2
2.2
2.2
2.2
2.2
2.2
1.2
1.2
1.2
1.2
1.2
1.2
1.5
1.5
1.5
1.5
1.5
1.5
0.45
0.30
0.40
0.50
0.50
0.50
1.0
0.6
1.0
1.1
1.2
1.2
0.2
0.2
0.2
0.2
0.2
0.2
1.5
B
1
1 = Part identification
0.1
0.1
0.1
0.1
0.1
0.1
Physical Characteristcs
Material:Leads
ALL
Tin plated copper,20AWG0.80mm
Environmental Specifications
Test
Passive aging
Humidity aging
Thermal shock
Resistance to solvent
Vibration
Storage conditions:-40℃ to 85℃
REV.2014.05.01
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
01 | www.spsemi.cn
PPTC/ISM Series
Electrical characteristics(25℃)
Model
Ihold
(A)
ISM010
ISM020
ISM035
ISM050
ISM075
ISM100
0.10
0.20
0.35
0.50
0.75
1.00
Itrip
(A)
0.30
0.50
0.75
1.00
1.50
1.95
Vmax
(Vdc)
15
9
6
6
6
6
Imax
(A)
100
100
100
100
40
100
Pd max
(w)
0.5
0.5
0.5
0.5
0.6
0.6
Maximum Time To Trip
Current
Time
(A)
(S)
0.5
8.0
8.0
8.0
8.0
8.0
1.5
0.02
0.1
0.1
0.2
0.3
Resistance
Rmin
Rmax
(Ω)
(Ω)
1.000
0.650
0.250
0.150
0.090
0.060
6.000
3.500
1.200
0.850
0.385
0.230
ISM110
ISM125
1.10
1.25
2.20
2.50
6
6
100
100
0.6
1.5
8.0
8.0
0.3
0.6
0.060
0.030
0.210
0.140
Ihold
Itrip
Vmax
Imax
Pd
Rmin/max
R1max
*CAUTION
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 device can withstand without damage at ratde current(imax).
Maximum fault current device can withstand without damage at rated voltage(Vmax).
Typical power dissipatde from device when in the tripped state in 25℃ still air.
Minimum/Maximum device resistance prior to tripping at 25℃.
Maximum resistance of device at 25℃ measured one hour after trippde tripping.
Operation beyond the specified rating may result in damage and possible arcing.
Model
ISM010
ISM020
ISM035
ISM050
ISM075
ISM100
—40℃
0.14
0.28
0.47
0.68
0.10
1.35
Ihold versus tempetature
maximun ambient operating temperature(Tmao)vs.hold current(Ihold)
—20℃
0℃
25℃
40℃
50℃
60℃
70℃
0.12
0.11
0.10
0.08
0.07
0.06
0.05
0.25
0.23
0.20
0.17
0.14
0.12
0.10
0.44
0.39
0.35
0.30
0.27
0.24
0.20
0.62
0.55
0.50
0.40
0.37
0.33
0.29
0.90
0.79
0.75
0.63
0.57
0.53
0.41
1.25
1.15
1.00
0.82
0.74
0.65
0.55
1.35
1.53
85℃
0.03
0.07
0.14
0.23
0.34
0.42
ISM110
ISM125
1.45
1.65
1.20
1.36
1.10
1.25
0.92
1.05
0.84
0.95
0.75
0.85
0.65
0.74
0.52
0.59
Thermal Derating Curve
Derating Curves for SMD0805 Series
160
Typical Time-To-Trip At 25°
C
Average Time Current Curves
100
0.10A
0.20A
Percentage of Derated
Current
140
0.35A
Time In Seconds
120
100
80
60
40
20
0
-40
-20
0
20
40
60
80
10
1
0.1
0.01
0.1
1
Current In Amperes
0.50A
0.75A
1.00A
1.1A
10
Temperature (°
C)
Package Information
Reel:
ISM010½ISM 050
ISM075
½
ISM125
5000pcs/Reel
4000pcs/Reel
REV.2014.05.01
02 | www.spsemi.cn
