1812L

Resettable PTCs Surface Mount PTC 1812L Series ® ® • Complies with electronic industry environmental standards for lead reduction. PHYSICAL SPECIFICATIONS: Terminal Material: Tin Plated Copper Device Labeling: Device is marked with LF and amperage rating. AGENCY APPROVALS: Recognized under the Components Program of Underwriters Laboratories and the Acceptance program of CSA. TUV approved. Packaging: 12mm tape and reel carrier per EIA 481 Standard. Standard reel quantity: 0.50-1.60A: 2,000 devices on 7" reel (PRT Suffix). 2.00-2.60A: 1,000 devices on 7" reel (MR Suffix). Optional reel quantity: 0.50-1.60A: 8,000 devices on 13" reel (ZRT Suffix). Temperature Rerating Curve: 170% 150% Percentage of Rated Current 130% 110% 90% 70% 50% 30% 10% -40 -30 -20 -10 0 10 20 30 40 Temperature (°C) 50 60 70 80 85 AGENCY FILE NUMBERS: UL E183209, CSA LR108832. ENVIRONMENTAL SPECIFICATIONS: Passive Aging: 85°C, 1000 Hours. Humidity Aging: 85°C, 85% R.H., 100 hours. Thermal Shock: 85°C / – 40°C, 20 times. Vibration: MIL-STD 202, Method 201, MIL-STD-883, Method 2007. Mechanical Shock: MIL-STD-202, Method 213 test condition I (100 g’s, 6 sec.). Solvent Resistance: MIL-STD-202, Method 215. Operating/Storage Temperature: – 40°C to 85°C Device should remain in sealed bags prior to use. Temperature Rerating: Ambient Temperature -40°C Part Number -20°C 0.67 1.00 1.47 1.67 2.00 2.13 2.67 3.47 0°C 0.58 0.87 1.28 1.46 1.75 1.86 2.33 3.03 20°C 0.50 0.75 1.10 1.25 1.50 1.60 2.00 2.60 40°C 0.41 0.62 0.91 1.04 1.24 1.33 1.66 2.16 50°C 0.37 0.56 0.82 0.93 1.12 1.19 1.49 1.94 60°C 0.33 0.50 0.73 0.83 0.99 1.06 1.32 1.72 70°C 0.29 0.43 0.64 0.72 0.87 0.92 1.15 1.50 80°C 0.25 0.37 0.54 0.62 0.74 0.79 0.99 1.28 85°C 0.23 0.34 0.50 0.56 0.68 0.72 0.90 1.17 Hold Current (A) 1812L050 1812L075 1812L110 1812L125 1812L150 1812L160 1812L200 1812L260 248 0.75 1.13 1.65 1.88 2.25 2.40 3.00 3.90 w w w. l i t t e l f u s e . c o m Resettable PTCs Surface Mount PTC 1812L Series Dimensions (Inches) 1812L050 1812L075 1812L110 1812L125 1812L150 1812L160 .61 mm (.025) Average Time Current Curves .75A 1.10A 1.25A 1.50A 2.0A 2.6A .50A 100 10 TIME IN SECONDS 1 3.30 mm (.130) 1812L200 1812L260 4.47 mm (.176) 1.13 mm (.049) 3.15 mm (.124) Top View 260 260 0.50 mm (.025) Side View Side View Tin Plated Terminals 2.29 mm (.090) Bottom View Pad Layout 2.03 mm (.080) 0.1 Recommended Pad Layout (Inches) All dimensions are nominal. 6 0.01 Solderability: Meets EIA specification RS186-9E and IPC/EIA J-STD-002, and IPC/EIA J-STD-001. Soldering Parameters: Reflow Solder — 245°C, 20 seconds maximum Wave Solder — 245°C, 10 seconds maximum 0.001 0.1 1 10 CURRENT IN AMPERES 100 Electrical Characteristics: Maximum Time To Trip Current Time (A) (Sec) Resistance R IL R AT (Ω) (Ω) 0.100 0.060 0.040 0.040 0.032 0.032 0.018 0.010 1.000 0.420 0.226 0.184 0.137 0.099 0.070 0.050 Part Number 1812L050 1812L075 1812L110 1812L125 1812L150 NEW 1812L160 1812L200 1812L260 Ihold = Itrip = Vmax = Imax = Pd = RIL = RAT = Ihold (A) Itrip (A) Vmax (Vdc) Imax (A) Pd max. (W) 0.50 1.00 15.0 40 0.8 8.0 0.15 0.75 1.50 13.2 40 0.8 8.0 0.30 1.10 2.20 6.0 40 0.8 8.0 0.30 1.25 2.50 6.0 40 0.8 8.0 0.30 1.50 3.00 6.0 40 0.8 8.0 0.30 1.60 3.20 6.0 40 0.8 8.0 0.30 2.00 4.00 6.0 40 0.8 8.0 2.50 2.60 5.20 6.0 40 0.8 8.0 2.50 Hold Current: maximum current device will sustain for 4 hours without tripping in 20°C still air. Trip Current: minimum current at which the device will trip in 20°C still air. Maximum voltage device can withstand without damage at rated current (Imax) Maximum fault current device can withstand without damage at rated voltage (Vmax) Power dissipated from device when in the tripped state at 20°C still air. Minimum resistance of device in initial (un-soldered) state. Maximum measured resistance in the non-tripped state 1 hour after reflow with reflow conditions of 245°C for 20 sec. CAUTION: Operation beyond the specified ratings may result in damage and possible arcing and flame. w w w. l i t t e l f u s e . c o m 249 RESETTABLE PTCs