POLYFUSE(R) Resettable PTCs Surface Mount > 1812L Series 1812L Series Description The 1812L Series device provides surface mount overcurrent protection for applications where resettable protection is desired. Agency Approvals AGENCY t-PXSFTJTUBODF t-PXQSPmMF t$PNQBUJCMFXJUIIJHI temperature solders t3P)4DPNQMJBOUBOE lead-free t'BTUSFTQPOTFUPGBVMU currents t$PNQBDUEFTJHOTBWFT board space Applications AGENCY FILE NUMBER t1$*DBSET t(BNFDPOTPMFQPSU protection t1MVHBOEQMBZQSPUFDUJPO for motherboards and peripherals t64#QFSJQIFSBMT E183209 R50119118 Electrical Characteristics Part Number* Marking I hold (A) 1812L010 LF010 0.10 I trip (A) V max (Vdc) I max (A) Pd max. (W) 0.30 30 100 0.8 Maximum Time To Trip Agency Approvals Resistance Current (A) Time (Sec.) R min () R typ () R 1max () 0.50 1.50 1.600 7.000 15.000 X X 1812L014 LF014 0.14 0.34 60 10 0.8 1.50 0.15 1.500 4.000 6.000 X X 1812L020 LF020 0.20 0.40 30 100 0.8 8.00 0.02 0.800 2.900 5.000 X X 1812L050-C LF050 0.50 1.00 15 100 0.8 8.00 0.15 0.150 0.600 1.000 X X 1812L075-C LF075 0.75 1.50 13.2 100 0.8 8.00 0.20 0.100 0.260 0.450 X X 1812L075/24 LF075-24 0.75 1.50 24 100 0.8 8.00 0.20 0.110 0.200 0.290 X X 1812L075/33 LF075-33 0.75 1.50 33 20 0.8 8.00 0.20 0.110 0.260 0.400 X X 1812L110-C LF110 1.10 2.20 6 100 0.8 8.00 0.30 0.040 0.120 0.210 X X 1812L110/16 LF110-16 1.10 1.95 16 100 0.8 8.00 0.50 0.060 0.120 0.180 X X 1812L110/33 LF110-33 1.10 1.95 33 20 0.8 8.00 0.50 0.060 0.120 0.200 X X 1812L125-C LF125 1.25 2.50 15 100 0.8 8.00 0.40 0.050 0.160 0.250 X X 1812L125/6 LF125-6 1.25 2.50 6 100 0.8 8.00 0.40 0.050 0.090 0.140 X X 1812L150-C LF150 1.50 3.00 8 100 0.8 8.00 0.30 0.040 0.070 0.110 X X 1812L150/12 LF150-12 1.50 3.00 12 100 0.8 8.00 0.50 0.040 0.070 0.110 X X 1812L150/24 LF150-24 1.50 3.00 24 20 0.8 8.00 1.50 0.040 0.070 0.120 X X 1812L160-C LF160 1.60 2.80 8 100 0.8 8.00 1.00 0.030 0.066 0.100 X X 1812L160/12 LF160-12 1.60 2.80 12 100 0.8 8.00 1.00 0.030 0.066 0.100 X X 1812L200-C LF200 2.00 3.50 8 100 0.8 8.00 2.00 0.020 0.040 0.060 X X 1812L260-C LF260 2.60 5.00 6 100 0.8 8.00 2.50 0.015 0.030 0.047 X X I hold = Hold current: maximum current device will pass without tripping in 20C still air. I trip = Trip current: minimum current at which the device will trip in 20C 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 20C still air. 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 20C measured one hour after tripping or reflow soldering of 260C for 20 sec. Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. *Note: Some devices in this product series may have "-C" in the Part Number. The "-C" should be omitted when placing orders for the device. (c)2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/1812L.html for current information. Revised: October 24, 2008 1812L Series 1812L Series Features POLYFUSE(R) Resettable PTCs Surface Mount > 1812L Series Temperature Rerating Ambient Operation Temperature -40C -20C 0C 23C Part Number* 40C 50C 60C 70C 85C 0.07 0.10 0.15 0.40 0.60 0.55 0.60 0.87 0.85 0.83 0.95 0.95 1.10 1.10 1.08 1.17 1.16 1.60 2.08 0.06 0.09 0.14 0.37 0.55 0.50 0.56 0.80 0.77 0.73 0.90 0.90 1.02 1.00 0.95 1.09 1.07 1.50 1.95 0.05 0.08 0.12 0.33 0.49 0.45 0.47 0.71 0.71 0.63 0.75 0.75 0.80 0.80 0.77 0.85 0.83 1.07 1.39 0.03 0.06 0.10 0.29 0.43 0.37 0.36 0.60 0.58 0.50 0.53 0.53 0.68 0.60 0.60 0.72 0.60 0.80 1.04 Hold Current (A) 1812L010 1812L014 1812L020 1812L050-C 1812L075-C 1812L075/24 1812L075/33 1812L110-C 1812L110/16 1812L110/33 1812L125-C 1812L125/6 1812L150-C 1812L150/12 1812L150/24 1812L160-C 1812L160/12 1812L200-C 1812L260-C 0.16 0.23 0.29 0.77 1.15 1.06 1.10 1.59 1.58 1.55 2.00 2.00 2.06 2.04 2.05 2.20 2.18 3.08 4.00 0.14 0.19 0.26 0.68 1.01 0.95 1.00 1.43 1.43 1.40 1.75 1.75 1.93 1.88 1.87 2.06 2.01 2.71 3.52 0.12 0.17 0.23 0.59 0.88 0.84 0.88 1.26 1.27 1.25 1.52 1.52 1.79 1.68 1.67 1.91 1.79 2.35 3.06 0.10 0.14 0.20 0.50 0.75 0.75 0.75 1.10 1.10 1.10 1.25 1.25 1.50 1.50 1.50 1.60 1.60 2.00 2.60 0.08 0.12 0.17 0.44 0.65 0.60 0.66 0.95 0.95 0.93 1.00 1.00 1.28 1.25 1.25 1.36 1.34 1.80 2.34 *Note: Some devices in this product series may have "-C" in the Part Number. The "-C" should be omitted when placing orders for the device. Average Time Current Curves 0.10A 0.14A 0.20A 0.50A 0.75A/33V 0.75A/24V 0.75A 1.10A/16V 1.10A/33V 1.10A 1.25A 1.25A/6V 1.50A/12V 1.50A 1.50A/24V 1.60A/12V 1.60A 1.60A/8V 2.00A 2.60A Temperature Rerating Curve 170% Percentage of Rated Current 150% 130% 1812L 100000 110% 90% 10000 70% 50% 1000 Time in Seconds 30% 10% -40 -30 -20 -10 0 10 20 30 40 Temperature (C) 50 60 70 80 85 100 10 1 0.1 0.01 0.1 1 10 100 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. 1812L Series Revised: October 24, 2008 (c)2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/1812L.html for current information. POLYFUSE(R) Resettable PTCs Surface Mount > 1812L Series Environmental Specifications Terminal Material Solder-Plated Copper (Solder Material: Matte Tin (Sn)) Operating/Storage Temperature -40C to +85C Lead Solderability Meets EIA Specification RS186-9E, ANSI/ J-STD-002 Category 3. Maximum Device Surface Temperature in Tripped State 125C Passive Aging +85C, 1000 hours -/+5% typical resistance change Humidity Aging +85C, 85% R.H.,1000 hours -/+5% typical resistance change Thermal Shock MIL-STD-202, Method 107G +85C/-40C 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 2, J-STD-020C Soldering Parameters Condition Reflow Peak Temp/ Duration Time 260C / 10 Sec Time above liquids (TAL) 220C 60 Sec ~ 100 Sec Preheat 120C~ 180C 50 Sec ~ 150 Sec 0C~35C, < =70%RH t3FDPNNFOEFESFnPXNFUIPET*3 WBQPSQIBTFPWFO IPUBJS oven, N2 environment for lead-free t3FDPNNFOEFENBYJNVNQBTUFUIJDLOFTTJTNN JODI t%FWJDFTDBOCFDMFBOFEVTJOHTUBOEBSEJOEVTUSZNFUIPETBOE solvents. Note: If reflow temperatures exceed the recommended profile, devices may not meet the performance requirements. (c)2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/1812L.html for current information. Cooling 220 Revised: October 24, 2008 Temperature (C) Storage Condition Soldering 260 Preheating 180 120 0 50 to 150 60 to 100 120 Time(s) 1812L Series 1812L Series Physical Specifications POLYFUSE(R) 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 Side View 3.45 mm (.135") Pad Layout D Part Number* 110 -33 B 3.15 mm (.124") 1.78mm (.070") B A Inches mm Inches C mm D Inches mm E Inches mm Inches mm Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Min. Min 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 0.30 0.01 0.03 0.25 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 0.30 0.01 0.03 0.25 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 0.01 0.30 0.01 0.03 0.25 0.65 1812L050-C 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 0.30 0.01 0.02 0.25 0.5 1812L075-C 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 0.30 0.01 0.02 0.25 0.5 1812L075/24 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 0.30 0.01 0.03 0.25 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 0.30 0.01 0.03 0.25 0.65 1812L110-C 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.03 0.5 0.71 0.01 0.30 0.01 0.02 0.25 0.5 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 0.30 0.01 0.03 0.25 0.65 1812L110/33 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.05 0.08 1.2 2 0.01 0.30 0.01 0.03 0.25 0.65 1812L125-C 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 0.30 0.01 0.02 0.25 0.5 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 0.30 0.01 0.03 0.25 0.65 1812L150-C 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.03 0.4 0.71 0.01 0.30 0.01 0.03 0.25 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 0.30 0.01 0.03 0.25 0.65 1812L150/24 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.07 0.8 1.8 0.01 0.30 0.01 0.03 0.25 0.65 1812L160-C 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.03 0.4 0.75 0.01 0.30 0.01 0.03 0.25 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 0.30 0.01 0.03 0.25 0.65 1812L200-C 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.81 1.2 0.01 0.30 0.01 0.02 0.25 0.5 1812L260-C 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.8 1.34 0.01 0.30 0.01 0.02 0.25 0.5 *Note: Some devices in this product series may have "-C" in the Part Number. The "-C" should be omitted when placing orders for the device. 1812L Series Revised: October 24, 2008 (c)2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/1812L.html for current information. POLYFUSE(R) Resettable PTCs Surface Mount > 1812L Series Part Ordering Number System* 1812 L 075 /33 D R PACKAGING STYLE R: Tape & Reel SERIES QUANTITY CODE: D=1500 M=1000 P=2000 /XX: SPECIAL VOLTAGE RATING (Not applicable to all parts. Refer to Electrical Characteristics Table) L: LITTELFUSE SURFACE MOUNT PPTC SIZE Packaging Packaging Option Quantity Quantity & Packaging Codes 010 Tape and Reel 1500 DR Part Number* Ordering Number* I hold (A) I hold Code 1812L010 1812L010DR 0.10 Voltage Option 1812L014 1812L014DR 0.14 014 Tape and Reel 1500 DR 1812L020 1812L020PR 0.20 020 Tape and Reel 2000 PR 1812L050-C 1812L050PR 0.50 050 Tape and Reel 2000 PR 1812L075-C 1812L075PR 0.75 075 Tape and Reel 2000 PR 1812L75/24 1812L75/24DR 0.75 075 /24 Tape and Reel 1500 DR 1812L75/33 1812L75/33DR 0.75 075 /33 Tape and Reel 1500 DR 1812L110-C 1812L110PR 1.10 110 Tape and Reel 2000 PR 1812L110/16 1812L110/16DR 1.10 110 /16 Tape and Reel 1500 DR 1812L110/33 1812L110/33MR 1.10 110 /33 Tape and Reel 1000 MR 1812L125-C 1812L125DR 1.25 125 Tape and Reel 1500 DR 1812L125/6 1812L125/6PR 1.25 125 Tape and Reel 2000 PR 1812L150-C 1812L150ZR 1.50 150 Tape and Reel 2000 ZR 1812L150/12 1812L150/12DR 1.50 150 /12 Tape and Reel 1500 DR 1812L150/24 1812L150/24MR 1.50 150 /24 Tape and Reel 1000 MR Tape and Reel 2000 PR /12 Tape and Reel 1500 DR /6 1812L160-C 1812L160PR 1.60 160 1812L160/12 1812L160/12DR 1.60 160 1812L200-C 1812L200DR 2.00 200 Tape and Reel 1500 DR 1812L260-C 1812L260ZR 2.60 260 Tape and Reel 1000 ZR *Note: Some devices in this product series may have "-C" in the Part Number. The "-C" should be omitted when placing orders for the device. (c)2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/1812L.html for current information. Revised: October 24, 2008 1812L Series 1812L Series I HOLD HOLD CURRENT CODE (Refer to Electrical Characteristics Table) POLYFUSE(R) Resettable PTCs Surface Mount > 1812L Series Tape and Reel Specifications TAPE SPECIFICATIONS: EIA-481-1 (mm) 1812L020, 1812L050-C, 1812L075-C, 1812L110-C, 1812L125/6, 1812L150-C, 1812L160-C 1812L010, 1812L014, 1812L075/24, 1812L075/33 1812L110/16, 1812L125-C, 1812L150/12, 1812L160/12 1812L200-C W 12.00+0.30-0.10 12.00+/- 0.30 12.00+/- 0.30 H F 5.50+/- 0.05 5.50+/- 0.05 5.50+/- 0.05 W 13.2+/- 1.5 E1 1.75+/- 0.10 1.75+/- 0.10 1.75+/- 0.10 D O 60.2+/- 0.5 D0 1.50+0.10 1.55+/- 0.05 1.55+/- 0.05 F O13.0+/- 0.5 D1 1.50+0.25 1.50 (MIN) 1.50 (MIN) C O178+/- 1.0 P0 4.00+/- 0.10 4.00+/- 0.10 4.00+/- 0.10 H1 11+/- 0.5 1812L110/33, 1812L150/24, 1812L260-C REEL DIMENSIONS: EIA-481-1 (mm) 16.0+/- 0.2 P1 8.00+/- 0.10 8.00+/- 0.10 8.00+/- 0.10 W1 2.5+0.5 P2 2.00+/- 0.05 2.00+/- 0.05 2.00+/- 0.05 W2 3.0+0.5 A0 3.58+/- 0.10 3.58+/- 0.10 3.58+/- 0.10 W3 4.0+0.5 B0 4.93+/- 0.10 4.93+/- 0.10 4.93+/- 0.10 W4 5.0+0.5 T 0.25+/- 0.10 0.25+/- 0.10 0.25+/- 0.10 K0 1.02+/- 0.10 1.30+/- 0.10 2.10+/- 0.10 Leader min. 390 390 390 Trailer min. 160 160 160 Tape and Reel Diagram H P1 P2 D0 E1 P0 W4 W3 D F W T W2 W F D2 C W1 A0 1812L Series K0 H1 B0 Revised: October 24, 2008 (c)2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/1812L.html for current information.