SMVR240-033 [SUNMATE]
POSITIVE THERMAL COEFFICIENT(PTC);
| 型号： | SMVR240-033 |
| 厂家： | 
SUNMATE electronic Co., LTD |
| 描述： | POSITIVE THERMAL COEFFICIENT(PTC) |
| 文件： | 总3页 (文件大小：635K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SMVR240 Series
POSITIVE THERMAL COEFFICIENT(PTC)
Description
Positive Thermal Coefficient devices(PTC),provide over-current
protection for electrical and electronic devices. They function
using conducting strips of metal imbedded inside polymers.
Under normal conditions, the devices resistance is near zero,
but over-current conditions will heat the PTC and expand the
polymer, increasing the impedance. When current returns to
normal, the components cool down, returning to their original
shape and very low levels of resistance.
Applications
Features
l
Over-current and over-temperature protection of
automotive electronics
l
l
l
l
l
l
l
l
I(hold): 0.05~2.0A
240V Operating voltages
Radial leaded devices.
Over-current protection
Very high voltage surge capabilities.
Available in lead-free version.
Fast time to trip
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l
l
l
l
l
l
l
l
Hard disk drives
PC motherboards
Point-of-sale (POS) equipment
PCMCIA cards
USB port protection - USB 2.0, 3.0 & OTG
HDMI 1.4 Source protection
Computers & peripherals
Industrial control
–
–
RoHS compliant, Lead- Free and Halogen-Free
Security systems
Part Number Code
X
X
-
X
X
X
M
R
X
S
V
LOGO
AC
Voltage rating(VDC)
Hold current
Environmental Specifications
Test
Conditions
Resistance change
±8% typical
±8% typical
±12% typical
No change
Passive aging
Humidity aging
Thermal shock
Resistance to solvent
Vibration
+85℃，1000hrs
+85℃，85%R.H.1000hrs
+125℃ to -55℃，10times
MIL-STD-202，Method 215
MIL-STD-202，Method 201
No change
Electrical Characteristic
Maximum Time to Trip
Resistance(Ω)
Rimin
Ihold
（A）
I
Vmax
（V）
Imax
（A）
Pd typ
（W）
T
Model
(A)
Current(A)
0.25
Time(S)
15
R1max
50.00
20.00
12.00
7.80
4.00
3.50
2.50
1.45
1.10
0.60
0.32
0.30
0.22
0.05
0.08
0.12
0.16
0.25
0.33
0.40
0.55
0.75
1.00
1.25
1.35
2.00
0.12
0.19
0.30
0.37
0.56
0.74
0.90
1.25
1.50
2.00
2.50
2.70
4.20
AC240
AC240
AC240
AC240
AC240
AC240
AC240
AC240
AC240
AC240
AC240
AC240
AC240
1.0
1.2
0.3
18.00
7.40
3.00
2.50
1.30
1.20
0.81
0.45
0.40
0.20
0.12
0.10
0.089
SMVR240-005
SMVR240-008
SMVR240-012
0.40
15
0.51
0.6
0.60
15
1.2
0.80
15
2.0
0.52
0.52
0.59
0.66
0.80
0.90
0.95
1.0
SMVR240-016
SMVR240-025
SMVR240-033
1.25
18.5
21
3.5
1.65
4.5
2.00
24
5.5
SMVR240-040
SMVR240-055
SMVR240-075
SMVR240-100
SMVR240-125
2.75
26
7.0
3.75
14
7.5
5.00
13.6
18
10.0
12.5
13.5
20.0
6.25
6.75
20
1.51
1.71
SMVR240-135
SMVR240-200
10.00
36
IH=Hold current: maximum current at which the device will not trip at 25℃ still air.
IT=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.
Imax=Maximum fault current device can withstand tithout damage at rated voltage.
T trip=Maximum time to trip(s) at assigned current.
Pd=Typical power dissipation: typical amount of power dissipated by the decice when in state air environment.
Ri min=Minimum device resistance at 25℃ prior to tripping.
R1 max=Maximum device resistance is measured one hour post reflow.
Solder reflow conditions
Wave Soldering
300
250
200
150
100
50
5s max.
Soldering
Soldering Temperature:260℃~270℃
Soldering Time:≤3sec.
245℃-260
Pre-heating
Soldering Position: Resettable fuse wire and the bottom ≥ 6mm。
Manual soldering
100℃-130℃
Soldering Temperature:250℃~280℃
Soldering Time:≤3sec.
Cooling
0
0
50
100
150
Time(s)
200
250
Soldering Position: Resettable fuse wire and the bottom ≥ 6mm。
Environmental temperature and IH,IT
300
250
200
150
100
50
IT
IH
0
-30
-20
-10
0
10
20
30
40
50
60
70
80
85
Product Dimensions
Marking
Marking
Pig.1
Dimensions（mm）
Pig.2
Dimensions（in）
Shape
Fig
Type Number
LeadΦ
(typ)
LeadΦ
(typ)
A(max)
B(max)
C(typ)
D(max)
A(max)
B(max)
C(typ)
D(max)
SMVR240-005
SMVR240-008
8.3
8.3
12.9
10.7
10.7
13.8
18.8
19.0
20.9
22.4
23.4
20.1
21.7
21.7
31.8
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
10.2
5.1
5.1
10.2
3.8
3.8
3.8
3.8
3.8
3.8
3.8
3.8
3.8
4.1
4.1
4.1
4.1
0.5
0.5
0.5
0.6
0.6
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.327
0.327
0.327
0.390
0.378
0.449
0.453
0.551
0.492
0.551
0.551
0.642
0.925
0.508
0.421
0.421
0.543
0.740
0.748
0.823
0.882
0.921
0.791
0.854
0.854
1.252
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.402
0.201
0.201
0.402
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.161
0.161
0.161
0.161
0.02
0.02
1
1
1
1
2
2
2
2
2
1
2
2
2
8.3
0.02
SMVR240-012
SMVR240-016
9.9
0.024
0.024
0.031
0.031
0.031
0.031
0.031
0.031
0.031
0.031
9.6
SMVR240-025
12.5
11.5
14.0
12.5
14.0
14.0
16.3
23.5
SMVR240-033
SMVR240-040
SMVR240-055
SMVR240-075
SMVR240-100
SMVR240-125
SMVR240-135
SMVR240-200
Packaging
Part Number
Quantity
500pcs/bag
SMVR240-005~SMVR240-200
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