Datasheet

40
Revised: July 12, 2010
POLYFUSE
®
Resettable PTCs
© 2010 Littelfuse, Inc.
Surface Mount > 1812L Series
1812L Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1812L.html for current information.
Ambient Operation Temperature
-40°C -20°C 0°C 23°C 40°C 50°C 60°C 70°C 85°C
Part Number Hold Current (A)
1812L010 0.16 0.14 0.12 0.10 0.08 0.07 0.06 0.05 0.03
1812L014 0.23 0.19 0.17 0.14 0.12 0.10 0.09 0.08 0.06
1812L020 0.29 0.26 0.23 0.20 0.17 0.15 0.14 0.12 0.10
1812L035/30 0.50 0.45 0.40 0.35 0.30 0.26 0.24 0.20 0.16
1812L050 0.77 0.68 0.59 0.50 0.44 0.40 0.37 0.33 0.29
1812L050/30 0.77 0.68 0.59 0.50 0.44 0.40 0.37 0.33 0.29
1812L075 1.15 1.01 0.88 0.75 0.65 0.60 0.55 0.49 0.43
1812L075/24 1.06 0.95 0.84 0.75 0.60 0.55 0.50 0.45 0.37
1812L075/33 1.10 1.00 0.88 0.75 0.66 0.60 0.56 0.47 0.36
1812L110 1.59 1.43 1.26 1.10 0.95 0.87 0.80 0.71 0.60
1812L110/16 1.58 1.43 1.27 1.10 0.95 0.85 0.77 0.71 0.58
1812L110/24 1.55 1.40 1.25 1.10 0.93 0.83 0.73 0.63 0.50
1812L110/33 1.55 1.40 1.25 1.10 0.93 0.83 0.73 0.63 0.50
1812L125 2.00 1.75 1.52 1.25 1.00 0.95 0.90 0.75 0.53
1812L125/6 2.00 1.75 1.52 1.25 1.00 0.95 0.90 0.75 0.53
1812L125/16 2.00 1.75 1.52 1.25 1.00 0.95 0.90 0.75 0.53
1812L150 2.06 1.93 1.79 1.50 1.28 1.10 1.02 0.80 0.68
1812L150/12 2.04 1.88 1.68 1.50 1.25 1.10 1.00 0.80 0.60
1812L150/24 2.05 1.87 1.67 1.50 1.25 1.08 0.95 0.77 0.60
1812L160 2.20 2.06 1.91 1.60 1.36 1.17 1.09 0.85 0.72
1812L160/12 2.20 2.06 1.91 1.60 1.36 1.17 1.09 0.85 0.72
1812L200TH 2.60 2.44 2.22 2.00 1,78 1.67 1.50 1.45 1.29
1812L260TH 3.40 3.16 3.00 2.60 2.30 2.15 2.00 1.85 1.63
1812L260/12 3.40 3.16 3.00 2.60 2.30 2.15 2.00 1.85 1.63
1812L300 4.13 3.75 3.30 3.00 2.61 2.43 2.25 2.00 1.78
Temperature Rerating
Temperature Rerating Curve
-40 -30 -20 -10 0 10 20 30 40 5060708085
10%
30%
50%
70%
90%
110 %
130%
150%
170%
Temperature (°C)
Percentage of Rated Current
Environmental Specifications
Operating/Storage
Temperature
-40°C to +85°C
Max. Device Surface Temp.
in Tripped State
125°C
Passive Aging
+85°C, 1000 hours
-/+5% typical resistance change
Humidity Aging
+85°C, 85% R.H.,1000 hours
-/+5% typical resistance change
Thermal Shock
MIL–STD–202, Method 107G
+85°C/-40°C 20 times
-30% typical resistance change
Solvent Resistance
MIL–STD–202, Method 215,
No change
Vibration
MIL–STD–883C, Method 2007.1,
Condition A, No change
Moisture Level Sesitivity Level 1, J–STD–020C
Physical Specifications
Terminal Material
Solder-Plated Copper (Solder Material:
Matte Tin (Sn))
Lead Solderability
Meets EIA Specification RS186-9E, ANSI/
J-STD-002 Category 3.