1812L075/24DR

POLY-FUSE® Resettable PTCs Surface Mount > 1812L Series 1812L Series RoHS Description The 1812L Series PTC provides surface mount overcurrent protection for applications where resettable protection is desired. Features • Low resistance • Low-profile • Compatible with high temperature solders •R  oHS compliant, lead-free and halogen-free •F  ast response •C  ompact design Applications Agency Approvals AGENCY • PCI cards • Game console port protection • Plug and play protection for motherboards and peripherals • USB peripherals AGENCY FILE NUMBER E183209 R50119118 Electrical Characteristics Part Number Marking I hold (A) I trip (A) V max (Vdc) I max (A) P d typ. (W) 1812L010 1812L010/60 1812L014 1812L020 1812L020/60 1812L035/30 1812L035/60 1812L050 1 1812L050/30 1812L050/60 1812L075 1 1812L075/242 1812L075/33 1812L110 1 1812L110/16 1812L110/24 1812L110/33 1812L125/6 1812L125/16 1812L150 1 1812L150/12 1812L150/16 1812L150/242 1812L160 1 1812L160/12 1812L200TH 1 LF010 LF010-60 LF014 LF020 LF020-60 LF035-30 LF035-60 LF050 LF050-30 LF050-60 LF075 LF075-24 LF075-33 LF110 LF110-16 LF110-24 LF110-33 LF125-6 LF125 LF150 LF150-12 LF150-16 LF150-24 LF160 LF160-12 LF200 0.10 0.10 0.14 0.20 0.20 0.35 0.35 0.50 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 1.50 1.60 1.60 2.00 0.30 0.30 0.34 0.40 0.40 0.75 0.70 1.00 1.00 1.00 1.50 1.50 1.50 2.20 1.95 1.95 1.95 2.50 2.50 3.00 3.00 2.80 3.00 2.80 2.80 3.50 30 60 60 30 60 30 60 15 30 60 13.2 24 33 8 16 24 33 6 16 8 12 16 24 8 12 8 100 10 10 100 40 40 10 100 100 10 100 100 20 100 100 20 20 100 100 100 100 100 20 100 100 100 0.8 0.8 0.8 0.8 0.8 0.8 1.00 0.8 0.8 1.50 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 Max. Time To Trip Resistance Current (A) Time (Sec.) R min (Ω) R 1max (Ω) 0.50 0.50 1.50 8.00 1.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 1.50 1.50 0.15 0.02 2.00 0.15 0.15 0.15 0.15 0.15 0.20 0.20 0.20 0.30 0.30 0.50 0.50 0.40 0.40 0.30 0.50 0.50 1.50 1.00 1.00 2.00 1.600 1.600 1.500 0.800 1.400 0.400 0.400 0.150 0.150 0.150 0.100 0.110 0.110 0.040 0.060 0.060 0.060 0.050 0.050 0.040 0.040 0.040 0.040 0.030 0.030 0.020 15.000 15.000 6.000 5.000 4.400 1.700 1.700 1.000 1.000 1.000 0.450 0.290 0.400 0.210 0.180 0.200 0.200 0.140 0.140 0.110 0.110 0.110 0.120 0.100 0.100 0.070 Agency Approvals X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X continues on next page. I hold = Hold current: maximum current device will pass without tripping in 20°C still air. R min = Minimum resistance of device in initial (un-soldered) state. I trip = Trip current: minimum current at which the device will trip in 20°C still air. R typ = Typical resistance of device in initial (un-soldered) state. V max = Maximum voltage device can withstand without damage at rated current (I max) R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow soldering of 260°C for 20 sec. I max = Maximum fault current device can withstand without damage at rated voltage (Vmax) P d = Power dissipated from device when in the tripped state at 20°C still air. Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. 1 Some older references to these devices may include “–C“ in the Part Number. The “–C“ should be omitted when placing new orders for the device. © 2019 Littelfuse, Inc. 2 Part Number with note 2 tested and complied with AEC Q200. Specifications are subject to change without notice. Revised: 02/25/19 POLY-FUSE® Resettable PTCs Surface Mount > 1812L Series Electrical Characteristics Part Number Marking I hold (A) I trip (A) V max (Vdc) I max (A) 1812L200/12 1812L200/16 1812L260TH 1 1812L260/12 1812L260/16 1812L300 LF200-12 LF200-16 LF260 LF260-12 LF260-16 LF300 2.00 2.00 2.60 2.60 2.60 3.00 3.50 3.50 5.20 5.00 5.00 5.00 12 16 8 12 16 6 100 100 100 100 100 100 Pd typ. (W) 1.0 1.0 0.8 0.8 1.2 0.8 I hold = Hold current: maximum current device will pass without tripping in 20°C still air. I trip = Trip current: minimum current at which the device will trip in 20°C still air. V max = Maximum voltage device can withstand without damage at rated current (I max) I max = Maximum fault current device can withstand without damage at rated voltage (Vmax) P d = Power dissipated from device when in the tripped state at 20°C still air. Max. Time To Trip Current Time (A) (Sec.) 8.00 8.00 8.00 8.00 8.00 8.00 Resistance R 1max R min (Ω) (Ω) 2.00 2.00 2.50 5.00 5.00 4.00 0.020 0.020 0.015 0.015 0.015 0.012 0.070 0.070 0.047 0.055 0.050 0.040 Agency Approvals X X X X X X X X X X X X R min = Minimum resistance of device in initial (un-soldered) state. R typ = Typical resistance of device in initial (un-soldered) state. R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow soldering of 260°C for 20 sec. Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. 1 Some older references to these devices may include “–C“ in the Part Number. The “–C“ should be omitted when placing new orders for the device. 2 Part Number with note 2 tested and complied with AEC Q200. Temperature Rerating Ambient Operation Temperature -40°C -20°C 0°C 20°C Part Number 1812L010 1812L010/60 1812L014 1812L020 1812L020/60 1812L035/30 1812L035/60 1812L050 1812L050/30 1812L050/60 1812L075 1812L075/24 1812L075/33 1812L110 1812L110/16 1812L110/24 1812L110/33 1812L125/6 1812L125/16 1812L150 1812L150/12 1812L150/16 1812L150/24 1812L160 1812L160/12 1812L200TH 1812L200/12 1812L200/16 1812L260TH 1812L260/12 1812L260/16 1812L300 40°C 50°C 60°C 70°C 85°C 0.07 0.07 0.10 0.15 0.15 0.26 0.26 0.40 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 1.10 1.08 1.17 1.17 1.67 1.67 1.67 2.15 2.15 2.15 2.43 0.06 0.06 0.09 0.14 0.14 0.24 0.24 0.37 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 1.00 0.95 1.09 1.09 1.50 1.50 1.50 2.00 2.00 2.00 2.25 0.05 0.05 0.08 0.12 0.12 0.20 0.20 0.33 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 0.80 0.77 0.85 0.85 1.45 1.45 1.45 1.85 1.85 1.85 2.00 0.03 0.03 0.06 0.10 0.10 0.16 0.16 0.29 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 0.60 0.72 0.72 1.29 1.29 1.29 1.63 1.63 1.63 1.78 Hold Current (A) 0.16 0.16 0.23 0.29 0.29 0.50 0.50 0.77 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 2.04 2.05 2.20 2.20 2.60 2.60 2.60 3.40 3.40 3.40 4.13 0.14 0.14 0.19 0.26 0.26 0.45 0.46 0.68 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 1.88 1.87 2.06 2.06 2.44 2.44 2.44 3.16 3.16 3.16 3.75 0.12 0.12 0.17 0.23 0.23 0.40 0.40 0.59 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 1.68 1.67 1.91 1.91 2.22 2.22 2.22 3.00 3.00 3.30 3.30 0.10 0.10 0.14 0.20 0.20 0.35 0.35 0.50 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 1.50 1.60 1.60 2.00 2.00 2.00 2.60 2.60 2.60 3.00 0.08 0.08 0.12 0.17 0.17 0.30 0.30 0.44 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 1.25 1.36 1.36 1,78 1.78 1.78 2.30 2.30 2.30 2.62 Notes: The temperature rerating data is only for reference, please contact Littelfuse technical support for detail temperature rerating information. © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/25/19 POLY-FUSE® Resettable PTCs Surface Mount > 1812L Series Temperature Rerating Curve Physical Specifications 170% Percentage of Rated Current 150% Terminal Material Solder-Plated Copper (Solder Material: Matte Tin (Sn)) Lead Solderability Meets EIA Specification RS186-9E, ANSI/ J-STD-002 Category 3. 130% Environmental Specifications 110% 90% Operating/Storage Temp. 70% Max. Device Surface Temp. 125°C in Tripped State 50% 30% 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 107 +85°C/-40°C 20 times -30% typical resistance change Solvent Resistance MIL–STD–202, Method 215, No change Vibration MIL–STD–883, Method 2007, Condition A, No change Moisture Level Sesitivity Level 1, J–STD–020 10% -40 -40°C to +85°C -30 -20 -10 0 10 20 30 40 Temperature (°C) 50 60 70 80 85 Note: Typical Temperature rerating curve, refer to table for derating data Soldering Parameters Profile Feature Pb-Free Assembly Average Ramp-Up Rate (TS(max) to TP) 3°C/second max 150°C Temperature Max (Ts(max)) 200°C Time (Min to Max) (ts) 60 – 180 secs Time Maintained Temperature (TL) Above: Temperature (tL) 217°C Peak / Classification Temperature (TP) 260 Time within 5°C of actual peak Temperature (tp) 20 – 40 seconds Ramp-down Rate 6°C/second max Time 25°C to peak Temperature (TP) 8 minutes Max. 60 – 150 seconds +0/-5 °C Critical Zone tL to tP Ramp-up TL TS(max) Temperature Pre Heat: Temperature Min (Ts(min)) tP TP tL Ramp-do Ramp-down TS(min) 25 Preheat tS time to peak temperature Time -- All temperature refer to topside of the package, measured on the package body surface -- If reflow temperature exceeds the recommended profile, devices may not meet the performance requirements -- Recommended reflow methods: IR, vapor phase oven, hot air oven, N2 environment for lead -- Recommended maximum paste thickness is 0.25mm(0.010inch) -- Devices can be cleaned usingstandard industry methods and solvents -- Devices can be reworked using the standard industry practices © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/25/19 POLY-FUSE® Resettable PTCs Surface Mount > 1812L Series 10 1812L Time in Seconds 0.1 0.01 0.1 0.01 0.1 10 100 1 10 100 Current in Amperes Current in Amperes 10 10 1 Additional Information Resources © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/25/19 0.01 0.1 1812L 1812 1 0.1 1 0.01 0.1 10 1 100 10 Current in Amperes Current in Amperes The average time current curves and Temperature Rerating curve performance is affected by a number or variables, and these curves provided as guidance only. Customer must verify the performance in their application. Datasheet 100 0.1 0.1 1 100 Time in Seconds 10 1812L Time in Seconds 100 Time in Seconds 100 0.10/60 0.10 0.20/60 0.14 0.20 0.35/30 0.35/60 0.50/30 0.50/60 0.10/60 0.75/33 0.10 0.75/24 0.20/60 1.10/33 0.14 1.10/24 0.20 1.50/24 0.35/30 2.00/12 0.35/60 0.50/30 0.50/60 0.75/33 0.75/24 1.10/33 1.10/24 1.50/24 2.00/12 0.50A 0.75A 1.10A 1.10A/16V 1.25A/6V 1.25A/16V 1.50A 1.50A/12V 1.60A 2.00A 0.50A 2.60A, 0.75A 2.60A/12V 2.60A/16V 1.10A 3.00A 1.10A/16V 1.25A/6V 1.25A/16V 1.50A 1.50A/12V 1.60A 2.00A 2.60A, 2.60A/12V 2.60A/16V 3.00A Average Time Current Curves Samples 1 POLY-FUSE® Resettable PTCs Surface Mount > 1812L Series Dimensions MARKING CODE VARIES WITH AMPERAGE AND VOLTAGE RATING (See Electrical Characteristics Table) SHOWN ARE: - 1.1A/6V RATING (LEFT) - 1.1A/33V RATING (RIGHT) C A Top View 110 Bottom View 110 E 3.15 mm (.124”) 1.78mm (.070”) B A Inches Side View 3.45 mm (.135”) Pad Layout D Part Number 110 -33 B mm Inches C mm Inches Min Max Min Max Min Max Min Max Min D mm Inches E mm Max Min Max Min Max Min Max Inches Min mm Max Min Max 1812L010 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 1.25 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L010/60 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 1.25 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L014 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.08 0.75 1.95 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L020 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.04 0.55 1.00 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L020/60 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 1.25 0.01 0.05 0.3 1.20 0.01 0.03 0.15 0.65 1812L035/30 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.04 0.6 1.25 0.01 0.05 0.3 1.20 0.01 0.03 0.15 0.65 1812L035/60 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.05 0.07 1.2 1.8 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L050 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.03 0.5 0.75 0.01 0.05 0.3 1.2 0.01 0.02 0.15 0.50 1812L050/30 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.04 0.5 1.00 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L050/60 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.05 0.07 1.2 1.8 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L075 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.03 0.5 0.75 0.01 0.05 0.3 1.2 0.01 0.02 0.15 0.50 1812L075/24 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 1.20 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L075/33 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.06 0.75 1.55 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L110 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.03 0.50 0.71 0.01 0.05 0.3 1.2 0.01 0.02 0.15 0.65 1812L110/24 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.04 0.50 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1.07 1812L110/16 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 1.25 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L110/33 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.05 0.08 1.20 2.00 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L125/6 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.03 0.45 0.75 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L125/16 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 0.01 0.05 0.3 1.2 0.01 0.02 0.15 0.65 1.25 1812L150 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.03 0.30 0.71 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L150/12 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 1.25 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L150/16 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 1.25 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L150/24 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.07 0.80 1.8 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L160 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.03 0.40 0.75 0.01 0.05 0.3 1.2 0.01 0.03 0.15 0.65 1812L160/12 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 1.25 0.01 0.05 0.3 1.2 1.2 0.01 0.15 0.65 0.01 0.02 1812L200TH 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.008 0.024 0.20 0.6 0.05 0.3 1.2 0.01 0.15 0.65 1812L200/12 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 1.20 0.012 0.047 0.3 1.2 0.01 0.026 0.15 0.65 0.03 0.05 0.80 1812L200/16 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.80 1.20 0.012 0.047 0.3 1.2 0.01 0.026 0.15 0.65 1812L260TH 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.04 0.50 1.00 0.01 0.05 0.3 1.2 0.01 0.02 0.65 0.01 0.01 0.15 1812L260/12 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.80 1.34 0.05 0.3 1.2 0.03 0.15 0.65 1812L260/16 0.18 0.19 4.54 4.90 0.12 0.14 3.16 3.50 0.05 0.08 1.20 2.00 0.012 0.047 0.3 1.2 0.006 0.03 0.15 0.65 1812L300 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.06 0.50 1.50 0.3 1.2 0.01 0.15 0.65 0.01 0.05 0.03 © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/25/19 POLY-FUSE® Resettable PTCs Surface Mount > 1812L Series Part Ordering Number System 1812 L 380 /12 TH Y R - A -A: Automotive grade Blank: Standard version SERIES PACKAGING STYLE R: Tape & Reel QUANTITY CODE: K=10,000 Y=4,000 W=3,000 P=2,000 THIN PROFILE (Not applicable to all parts) /XX: SPECIAL VOLTAGE RATING (Not applicable to all parts. Refer to Electrical Characteristics Table) I HOLD HOLD CURRENT CODE (Refer to Electrical Characteristics Table) L: LITTELFUSE SURFACE MOUNT PPTC SIZE Packaging Part Number Ordering Number Halogen Free I hold (A) I hold Code 1812L010 1812L010/60 1812L014 1812L020 1812L020/60 1812L035/30 1812L035/60 1812L050 1812L050/30 1812L050/60 1812L075 1812L75/24 1812L75/33 1812L110 1812L110/16 1812L110/24 1812L110/33 1812L125/6 1812L125/16 1812L150 1812L150/12 1812L150/16 1812L150/24 1812L160 1812L160/12 1812L200TH 1812L200/12 1812L200/16 1812L260TH 1812L260/12 1812L260/16 1812L300 1812L010DR 1812L010/60DR 1812L014DR 1812L020PR 1812L020/60DR 1812L035/30DR 1812L035/60 1812L050PR 1812L050/30PR 1812L050/60 1812L075PR 1812L075/24DR 1812L075/33DR 1812L110PR 1812L110/16DR 1812L110/24DR 1812L110/33MR 1812L125/6PR 1812L125/16DR 1812L150ZR 1812L150/12DR 1812L150/16DR 1812L150/24MR 1812L160PR 1812L160/12DR 1812L200THPR 1812L200/12DR 1812L200/16DR 1812L260THDR 1812L260/12MR 1812L260/16MR 1812L300MR Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes 0.10 0.10 0.14 0.20 0.20 0.35 0.35 0.50 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 1.50 1.60 1.60 2.00 2.00 2.00 2.60 2.60 2.60 3.00 010 010 014 020 020 035 035 050 050 050 075 075 075 110 110 1.10 110 125 125 150 150 150 150 160 160 200 200 200 260 260 260 300 Voltage Option Packaging Option Quantity Tape and Reel 1500 1500 1500 2000 1500 1500 1000 2000 2000 1000 2000 1500 1500 2000 1500 1500 1000 2000 1500 2000 1500 1500 1000 2000 1500 2000 1500 1500 1500 1000 1000 1000 /60 /60 /30 /60 /30 /60 /24 /33 /16 /24 /33 /6 /16 /12 /16 /24 /12 /12 /12 Quantity & Packaging Code DR DR DR PR DR DR MR PR PR MR PR DR DR PR DR DR MR PR DR ZR DR DR MR PR DR PR DR DR DR MR MR MR WARNING • Users shall independently assess the suitability of these devices for each of their applications • Operation of these devices beyond the stated maximum ratings could result in damage to the devices and lead to electrical arcing and/or fire • These devices are intended to protect against the effects of temporary over-current or over-temperature conditions and are not intended to perform as protective devices where such conditions are expected to be repetitive or prolonged in duration • Exposure to silicon-based oils, solvents, electrolytes, acids, and similar materials can adversely affect the performance of these PPTC devices • These devices undergo thermal expansion under fault conditions, and thus shall be provided with adequate space and be protected against mechanical stresses • Circuits with inductance may generate a voltage (L di/dt) above the rated voltage of the PPTC device. © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/25/19 POLY-FUSE® Resettable PTCs Surface Mount > 1812L Series Tape and Reel Specifications TAPE SPECIFICATIONS: EIA-481-1 (mm) 1812L020 1812L050/30 1812L050 1812L075 1812L110 1812L125/6 1812L150 1812L160 1812L200 1812L010 1812L010/60 1812L014 1812L020/60 1812L035/30 1812L075/24 1812L075/33 1812L110/16 1812L110/24 1812L125/16 1812L150/12 1812L150/16 1812L160/12 1812L200/12 1812L200/16 1812L260 1812L035/60 1812L050/60 1812L110/33 1812L150/24 1812L260/12 1812L260/16 1812L300 W 12.00 ± 0.30 12.00 ± 0.30 12.00 ± 0.30 C Ø178 ± 1.0 F 5.50 ± 0.05 5.50 ± 0.05 5.50 ± 0.05 D Ø60.2 ± 0.5 E1 1.75 ± 0.10 1.75 ± 0.10 1.75 ± 0.10 H 16.0 ±  0.5 D0 1.55 ± 0.10 1.55+/- 0.05 1.55 ± 0.05 W 13.2 ± 1.5 D1 1.55 (min) 1.50+/- 0.10 1.50 (MIN) P0 4.00 ±  0.10 4.00 ± 0.10 4.00 ±  0.08 P1 8.00 ±  0.10 8.00 ±  0.10 8.00 ± 0.10 P2 2.00 ± 0.05 2.00 ±  0.05 2.00 ± 0.05 A0 3.58 ±  0.10 3.50 ±  0.10 3.58 ± 0.10 B0 4.93 ±  0.10 4.85±  0.10 4.93 ±  0.10 T 0.25 ±  0.10 0.25 ± 0.10 0.25 ± 0.10 K0 0.87± 0.06 1.25 ±  0.10 2.10 ± 0.10 Leader min. 390 390 390 Trailer min. 160 160 160 REEL DIMENSIONS: EIA-481-1 (mm) Tape and Reel Diagram H D0 P0 P1 E1 P2 D F C W T D1 D1 K0 W B0 Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics. © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/25/19