POLYFUSE® Resettable PTCs
Surface Mount > 1812L Series
Temperature Rerating
Ambient OperationTemperature
-40°C
-20°C
0°C
23°C
40°C
50°C
60°C
70°C
85°C
Part Number
Hold Current (A)
1812L010
1812L014
0.16
0.23
0.29
0.77
0.77
1.15
1.06
1.10
1.59
1.58
1.55
1.55
2.00
2.00
2.06
2.04
2.05
2.20
2.20
2.60
3.40
3.40
4.13
0.14
0.19
0.26
0.68
0.68
1.01
0.95
1.00
1.43
1.43
1.40
1.40
1.75
1.75
1.93
1.88
1.87
2.06
2.06
2.44
3.16
3.16
3.75
0.12
0.17
0.23
0.59
0.59
0.88
0.84
0.88
1.26
1.27
1.25
1.25
1.52
1.52
1.79
1.68
1.67
1.91
1.91
2.22
3.00
3.00
3.30
0.10
0.14
0.20
0.50
0.50
0.75
0.75
0.75
1.10
1.10
1.10
1.10
1.25
1.25
1.50
1.50
1.50
1.60
1.60
2.00
2.60
2.60
3.00
0.08
0.12
0.17
0.44
0.44
0.65
0.60
0.66
0.95
0.95
0.93
0.93
1.00
1.00
1.28
1.25
1.25
1.36
1.36
1,78
2.30
2.30
2.61
0.07
0.10
0.15
0.40
0.40
0.60
0.55
0.60
0.87
0.85
0.83
0.83
0.95
0.95
1.10
1.10
1.08
1.17
1.17
1.67
2.15
2.15
2.43
0.06
0.09
0.14
0.37
0.37
0.55
0.50
0.56
0.80
0.77
0.73
0.73
0.90
0.90
1.02
1.00
0.95
1.09
1.09
1.50
2.00
2.00
2.25
0.05
0.08
0.12
0.33
0.33
0.49
0.45
0.47
0.71
0.71
0.63
0.63
0.75
0.75
0.80
0.80
0.77
0.85
0.85
1.45
1.85
1.85
2.00
0.03
0.06
0.10
0.29
0.29
0.43
0.37
0.36
0.60
0.58
0.50
0.50
0.53
0.53
0.68
0.60
0.60
0.72
0.72
1.29
1.63
1.63
1.78
1812L020
1812L050
1812L050/30
1812L075
1812L075/24
1812L075/33
1812L110
1812L110/16
1812L110/24
1812L110/33
1812L125
1812L125/6
1812L150
1812L150/12
1812L150/24
1812L160
1812L160/12
1812L200TH
1812L260TH
1812L260/12
1812L300
Physical Specifications
Temperature Rerating Curve
Solder-Plated Copper (Solder Material:
MatteTin (Sn))
Terminal Material
Lead Solderability
170%
150%
130%
Meets EIA Specification RS186-9E, ANSI/
J-STD-002 Category 3.
110%
90%
70%
Environmental Specifications
Operating/Storage
-40°C to +85°C
Temperature
50%
30%
10%
Maximum Device Surface
Temperature inTripped State
125°C
+85°C, 1000 hours
-/+5% typical resistance change
Passive Aging
-40 -30 -20 -10
0
10
20 30
Temperature (°C)
40 50 60 70 80 85
+85°C, 85% R.H.,1000 hours
-/+5% typical resistance change
Humidity Aging
MIL–STD–202, Method 107G
+85°C/-40°C 20 times
Thermal Shock
-30% typical resistance change
MIL–STD–202, Method 215
No change
Solvent Resistance
MIL–STD–883C, Method
2007.1, Condition A
No change
Vibration
Moisture Level Sesitivity
Level 1, J–STD–020C
40
©2009 Littelfuse, Inc.
1812L Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1812L.html for current information.
Revised: December 2, 2009