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POLYFUSE® Resettable PTCs Surface Mount > 1206L Series 1206L Series Description The 1206L Series device provides surface mount overcurrent protection for applications where space is at a premium and resettable protection is desired. t

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for motherboards and peripherals E183209 R50119118 Electrical Characteristics I trip (A) V max (Vdc) I max (A) Pd max. (W) Part Number* Marking I hold (A) 1206L012 A 0.125 0.29 30 100 1206L016 B 0.16 0.37 30 100 Maximum Time To Trip Agency Approvals Resistance Current (A) Time (Sec.) R min (Ω) R typ (Ω) R 1max (Ω) 0.6 1.00 0.20 1.500 3.600 6.000 X X 0.6 1.00 0.30 1.200 2.800 4.500 X X 1206L020–C C 0.20 0.42 24 100 0.6 8.00 0.10 0.650 1.550 2.600 X X 1206L025–C D 0.25 0.50 16 100 0.6 8.00 0.08 0.550 1.400 2.300 X X 1206L035–C E 0.35 0.75 6 100 0.6 8.00 0.10 0.300 0.750 1.200 X X 1206L035/16 J 0.35 0.75 16 100 0.6 8.00 0.10 0.300 0.750 1.200 X X 1206L050–C F 0.50 1.00 6 100 0.6 8.00 0.10 0.150 0.400 0.700 X X 1206L050/15 M 0.50 1.00 15 100 0.6 8.00 0.10 0.150 0.400 0.750 X X 1206L075–C G 0.75 1.50 6 100 0.6 8.00 0.20 0.090 0.200 0.290 X X 1206L100 N 1.00 1.80 6 100 0.8 8.00 0.30 0.055 0.110 0.210 X X 1206L110–C H 1.10 2.20 6 100 0.8 8.00 0.30 0.040 0.110 0.180 X X 1206L150-C K 1.50 3.00 6 100 0.8 8.00 1.00 0.040 0.080 0.120 X X 1206L160 L 1.60 3.20 6 100 0.8 8.00 0.40 0.025 0.110 X X I hold = Hold current: maximum current device will pass without tripping in 20°C still air. P d = Power dissipated from device when in the tripped state at 20°C still air. I trip = Trip current: minimum current at which the device will trip in 20°C still air. R min = Minimum resistance of device in initial (un-soldered) state. V max = Maximum voltage device can withstand without damage at rated current (I max) R typ = Typical resistance of device in initial (un-soldered) state. I max = Maximum fault current device can withstand without damage at rated voltage (Vmax) R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow soldering of 260°C for 20 sec. Caution:
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nBNF *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. ©2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/1206L.html for current information. 1206L Series Revised: May 26, 2009 1206L Series Features POLYFUSE® Resettable PTCs Surface Mount > 1206L Series Temperature Rerating Ambient Operation Temperature -40°C -20°C 0°C 23°C 1206L012 0.18 0.16 0.14 0.125 1206L016 0.22 0.20 0.18 0.16 1206L020–C 0.28 0.25 0.23 0.20 1206L025–C 0.37 0.33 0.29 0.25 1206L035–C 0.50 0.45 0.40 0.35 1206L035/16 0.50 0.45 0.40 40°C 50°C 60°C 70°C 85°C 0.10 0.09 0.08 0.07 0.05 0.14 0.12 0.10 0.09 0.08 0.17 0.15 0.14 0.12 0.09 0.22 0.20 0.17 0.15 0.12 0.30 0.27 0.24 0.21 0.15 0.35 0.30 0.27 0.24 0.21 0.15 Hold Current (A) Part Number* 1206L050–C 0.71 0.64 0.57 0.50 0.42 0.39 0.35 0.31 0.25 1206L050/15 0.71 0.64 0.57 0.50 0.42 0.39 0.35 0.31 0.25 1206L075–C 1.14 1.01 0.88 0.75 0.65 0.59 0.54 0.49 0.41 1206L100 1.45 1.31 1.15 1.00 0.84 0.77 0.69 0.61 0.48 1206L110–C 1.52 1.37 1.25 1.10 0.92 0.82 0.75 0.64 0.52 1206L150–C 2.18 1.94 1.72 1.50 1.28 1.17 1.06 0.96 0.77 *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. Temperature Rerating Curve 100000 170% 150% Percentage of Rated Current 0.12A 0.16A 0.20A 0.25A 0.35A 0.35A/15V 0.50A 0.50A/15V 0.75A 1.0A 1.1A 1.5A 2.0A Average Time Current Curves 1206L 10000 110% 90% 70% 50% 30% 1000 Time in Seconds 130% 10% -40 -30 -20 100 -10 0 10 20 30 40 Temperature (°C) 50 60 70 80 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. ©2009 Littelfuse, Inc. 1206L Series Revised: May 26, 2009 Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/1206L.html for current information. POLYFUSE® Resettable PTCs Surface Mount > 1206L Series Soldering Parameters Reflow Peak Temp/ Duration Time 260°C / 10 Sec Time above liquids (TAL) 220°C 60 Sec ~ 100 Sec Preheat 120°C~ 180°C 50 Sec ~ 150 Sec Storage Condition 0°C~35°C, 70%RH Soldering 260 Cooling 220 Temperature (°C) Condition t

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JODI 120 Time(s) Environmental Specifications Terminal Material Solder-Plated Copper (Solder Material: Matte Tin (Sn)) Operating/Storage Temperature -40°C to +85°C Lead Solderability .FFUT
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ANSI/J-STD-002 Category 3. Maximum Device Surface Temperature 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 Sensivity Level Level 1, J–STD–020C ©2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/1206L.html for current information. 1206L Series Revised: May 26, 2009 POLYFUSE® Resettable PTCs Surface Mount > 1206L Series Dimensions Part Ordering Number System* MARKING CODE VARIES WITH AMPERAGE RATING (SEE ELECTRICAL CHARACTERISTICS CHART) SHOWN IS 1.0 AMP RATING 1206 L 035 /16 W R PACKAGING STYLE R: Tape & Reel C A Top View N SERIES QUANTITY CODE: W=3000 Y=4000 P=2000 /XX: SPECIAL VOLTAGE RATING (Not applicable to all parts. Refer to Electrical Characteristics Table) Side View B I HOLD HOLD CURRENT CODE (Refer to Electrical Characteristics Table) Bottom View N D Part Number* 1.80 mm (.071) Pad Layout E L: LITTELFUSE SURFACE MOUNT PPTC 1.80 mm (.071) SIZE 1.00 mm (.040) A B Inches mm Inches C mm D Inches mm E Inches mm Inches Min mm Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Min. Max. Min. Max. 1206L012 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.03 0.06 0.65 1.45 0.01 0.2 0.004 0.02 0.1 0.45 1206L016 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.03 0.06 0.65 1.45 0.01 0.2 0.004 0.02 0.1 0.45 1206L020–C 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.04 0.5 1 0.01 0.2 0.004 0.02 0.1 0.45 1206L025–C 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.04 0.5 1 0.01 0.2 0.004 0.02 0.1 0.45 1206L035–C 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.03 0.45 0.75 0.01 0.2 0.004 0.02 0.1 0.45 1206L035/16 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.03 0.45 0.75 0.01 0.2 0.004 0.02 0.1 0.45 1206L050–C 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.03 0.45 0.75 0.01 0.2 0.004 0.02 0.1 0.45 1206L050/15 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.03 0.45 0.75 0.01 0.2 0.004 0.02 0.1 0.45 1206L075–C 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.05 0.45 1.25 0.01 0.2 0.004 0.02 0.1 0.45 1206L100 0.12 0.13 3 3.4 0.06 0.07 1.5 1.8 0.03 0.04 0.75 1 0.01 0.2 0.004 0.02 0.1 0.45 1206L110–C 0.12 0.13 3 3.4 0.06 0.07 1.5 1.8 0.03 0.04 0.75 1 0.01 0.2 0.004 0.02 0.1 0.45 1206L150–C 0.12 0.13 3 3.4 0.06 0.07 1.5 1.8 0.03 0.06 0.85 1.4 0.01 0.2 0.004 0.02 0.1 0.45 1206L160 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.03 0.07 0.80 1.6 0.01 0.2 0.004 0.02 0.1 0.45 Packaging Ordering Number* I hold (A) 1206L012 1206L012WR 0.125 012 Tape and Reel 3000 WR 1206L016 1206L016WR 0.16 016 Tape and Reel 3000 WR Part Number* I hold Code Packaging Option Quantity Quantity & Packaging Codes 1206L020–C 1206L020YR 0.20 020 Tape and Reel 4000 YR 1206L025–C 1206L025YR 0.25 025 Tape and Reel 4000 YR 1206L035–C 1206L035YR 0.35 035 Tape and Reel 4000 YR 1206L035/16 1206L035/16YR 0.35 035 Tape and Reel 4000 YR 1206L050–C 1206L050YR 0.50 050 Tape and Reel 4000 YR 1206L050/15 1206L050/15YR 0.50 050 Tape and Reel 4000 YR 1206L075–C 1206L075WR 0.75 075 Tape and Reel 3000 WR 1206L100 1206L100WR 1.00 100 Tape and Reel 3000 WR 1206L110–C 1206L110WR 1.10 110 Tape and Reel 3000 WR 1206L150–C 1206L150WR 1.50 150 Tape and Reel 2000 PR 1206L160 1206L160 1.60 160 Tape and Reel 2000 PR *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. ©2009 Littelfuse, Inc. 1206L Series Revised: May 26, 2009 Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/1206L.html for current information. POLYFUSE® Resettable PTCs Surface Mount > 1206L Series Tape and Reel Specifications TAPE SPECIFICATIONS: EIA-481-1 (mm) 1206L020–C, 1206L025–C, 1206L035–C, 1206L035/16, 1206L050–C, 1206L050/15, 1206L075 1206L012, 1206L016, 1206L100, 1206L110–C W 8.15+0.15-0.30 8.00+/- 0.30 8.15+0.15-0.30 H 16.0+/- 0.2 F 3.50+/- 0.05 3.50+/- 0.05 3.50+/- 0.05 W 13.2+/- 1.5 E1 1.75+/- 0.10 1.75+/- 0.10 1.75+/- 0.10 D Ø 60.2+/−0.5 D0 1.55+/- 0.05 1.55+/- 0.05 1.55+/- 0.05 F Ø 13.0+/- 0.5 D1 1.00 (MIN) 1.00 (MIN) 1.00 (MIN) C Ø 178+/- 1.0 P0 4.00+/- 0.10 4.00+/- 0.10 4.00+/- 0.10 H1 11+/- 0.5 P1 4.00+/- 0.10 4.00+/- 0.10 4.00+/- 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 1.95+/- 0.10 1.95+/- 0.10 1.95+/- 0.10 W3 4.0+0.5 B0 3.65+/- 0.10 3.65+/- 0.10 3.65+/- 0.10 W4 5.0+0.5 T 0.25+/- 0.10 0.25+/- 0.10 0.25+/- 0.10 K0 0.87+/- 0.10 1.30+/- 0.10 1.70+/- 0.10 Leader min. 390 390 390 Trailer min. 160 160 160 1206L Series REEL DIMENSIONS: EIA-481-1 (mm) 1206L150–C 1206L160 Tape and Reel Diagram H P1 P2 D0 E1 P0 W4 W3 D F W T W2 W F D2 C W1 A0 K0 H1 B0 ©2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/1206L.html for current information. 1206L Series Revised: May 26, 2009