POLYFUSE® Resettable PTCs Surface Mount 1210L Series Description The 1210L series device provides surface mount overcurrent protection for applications where space is at a premium and resettable protection is desired. Features Agency Approvals AGENCY • Low resistance • Low-profile • Compatible with high temperature solders • RoHS compliant and lead-free • Fast response to fault currents • Compact design saves board space AGENCY FILE NUMBER Applications E183209 • USB peripherals • Disk drives • CD-ROMs • PC motherboards - plug and play protection R50082521 • Mobile phones - battery and port protection • PDAs / digital cameras • Game console port protection Electrical Characteristics Marking I hold (A) I trip (A) V max (Vdc) I max (A) Pd max. (W) 1210L005 A 0.05 0.15 30 10 1210L010 B 0.10 0.30 30 10 1210L020 C 0.20 0.40 30 1210L035 E 0.35 0.70 6 1210L050 F 0.50 1.00 13.2 1210L075 G 0.75 1.50 6 1210L110 H 1.10 2.20 1210L150 K 1.50 3.00 Part Number Maximum Time To Trip Agency Approvals Resistance Current (A) Time (Sec.) R min (Ω) R typ (Ω) R 1max (Ω) 0.60 0.25 1.50 3.600 25.00 50.00 X X 0.60 0.50 1.50 1.600 7.000 15.00 X X 10 0.60 8.00 0.02 0.800 2.900 5.000 X X 100 0.60 8.00 0.20 0.320 0.810 1.300 X X 100 0.60 8.00 0.10 0.250 0.550 0.900 X X 100 0.60 8.00 0.10 0.130 0.290 0.400 X X 6 100 0.60 8.00 0.30 0.060 0.140 0.210 X X 6 100 0.80 8.00 0.50 0.040 0.070 0.110 X X I hold = Hold current: maximum current device will pass without tripping in 20°C still air. R typ = Typical 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 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow soldering of 260°C for 20 sec. V max = Maximum voltage device can withstand without damage at rated current (I max) Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. 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. R min = Minimum resistance of device in initial (un-soldered) state. 1210L Series Specifications are subject to change without notice. Electronics Designers Guide www.littelfuse.com ©2006 Littelfuse POLYFUSE® Resettable PTCs Surface Mount Temperature Rerating Ambient Operation Temperature -40°C -20°C 0°C 23°C Part Number 40°C 50°C 60°C 70°C 85°C Hold Current (A) 1210L005 0.08 0.07 0.06 0.05 0.04 0.04 0.03 0.03 0.02 1210L010 0.16 0.14 0.12 0.10 0.08 0.07 0.06 0.05 0.03 1210L020 0.29 0.26 0.22 0.20 0.16 0.14 0.13 0.11 0.08 1210L035 0.47 0.45 0.40 0.35 0.33 0.28 0.24 0.21 0.18 1210L050 0.76 0.67 0.58 0.50 0.43 0.40 0.36 0.32 0.28 1210L075 1.00 0.97 0.86 0.75 0.64 0.59 0.54 0.48 0.40 1210L110 1.69 1.48 1.29 1.10 0.88 0.76 0.65 0.57 0.43 1210L150 2.13 1.92 1.71 1.50 1.26 1.14 1.01 0.89 0.71 1210L Series 0.750A Temperature Rerating Curve 170% 1.10A 1.50A 0.350A 0.500A 0.100A 0.050A 0.200A Average Time Current Curves 100000 Percentage of Rated Current 150% 10000 TIME IN SECONDS 1000 130% 110% 90% 70% 50% 100 30% 10% 10 -40 -30 -20 -10 0 10 20 30 40 Temperature (°C) 50 60 70 80 1 0.100 0.010 0.001 0.02 0.100 1 10 100 CURRENT IN AMPERES Specifications are subject to change without notice. Note: 1.00 means the number one with two decimal places. AKL V3.9 06.05.10 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. 1210L Series Specifications are subject to change without notice. Electronics Designers Guide www.littelfuse.com ©2006 Littelfuse POLYFUSE® Resettable PTCs Surface Mount Soldering Parameters Condition 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 0°C~35°C, < =70%RH Cooling 220 Temperature (°C) Storage Condition Soldering 260 •R ecommended reflow methods: IR, vapor phase oven, hot air oven, N2 environment for lead-free • Devices are not designed to be wave soldered to the bottom side of the board. • Recommended maximum paste thickness is 0.25mm (0.010 inch) • Devices can be cleaned using standard industry methods and solvents. Note: If reflow temperatures exceed the recommended profile, devices may not meet the performance requirements. 180 120 0 Preheating 50 to 150 60 to 100 120 Time(s) Physical Specifications Environmental Specifications Terminal Material Solder-Plated Copper (Solder Material: Matte Tin (Sn)) Operating/Storage Temperature -40°C to +85°C Lead Solderability Meets EIA Specification RS186-9E, 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 1210L Series Specifications are subject to change without notice. Electronics Designers Guide www.littelfuse.com ©2006 Littelfuse POLYFUSE® Resettable PTCs Surface Mount Dimensions MARKING CODE VARIES WITH AMPERAGE RATING (SEE CHART) SHOWN IS 1.5AMP RATING C A K Top View Side View B Bottom View 2.00 mm (.079) Pad Layout D E 2.50 mm (.098) 1.00 mm (.040) A Part Number B 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. 1210L005 0.12 0.14 3.00 3.43 0.09 0.11 2.35 2.80 0.03 0.05 0.75 1.25 0.01 0.25 0.008 0.02 0.20 0.50 1210L010 0.12 0.14 3.00 3.43 0.09 0.11 2.35 2.80 0.03 0.05 0.75 1.25 0.01 0.25 0.008 0.02 0.20 0.50 1210L020 0.12 0.14 3.00 3.43 0.09 0.11 2.35 2.80 0.02 0.04 0.60 1.00 0.01 0.25 0.008 0.02 0.20 0.50 1210L035 0.12 0.14 3.00 3.43 0.09 0.11 2.35 2.80 0.02 0.03 0.50 0.85 0.01 0.25 0.008 0.02 0.20 0.50 1210L050 0.12 0.14 3.00 3.43 0.09 0.11 2.35 2.80 0.02 0.03 0.50 0.85 0.01 0.25 0.008 0.02 0.20 0.50 1210L075 0.12 0.14 3.00 3.43 0.09 0.11 2.35 2.80 0.02 0.03 0.50 0.85 0.01 0.25 0.008 0.02 0.20 0.50 1210L110 0.12 0.14 3.00 3.43 0.09 0.11 2.35 2.80 0.04 0.05 0.90 1.30 0.01 0.25 0.008 0.02 0.20 0.50 1210L150 0.12 0.14 3.00 3.43 0.09 0.11 2.35 2.80 0.03 0.07 0.80 1.80 0.01 0.25 0.008 0.02 0.20 0.50 Part Numbering System 1210 L 110 W R PACKAGING STYLE R: Tape & Reel SERIES QUANTITY CODE: W=3000 Y=4000 I HOLD HOLD CURRENT CODE (SEE TABLE BELOW) L: LITTELFUSE SURFACE MOUNT PPTC SIZE Packaging I hold (A) I hold Code Packaging Option Quantity Quantity & Packaging Codes 0.05 005 Tape and Reel 3000 WR 0.10 010 Tape and Reel 3000 WR 0.20 020 Tape and Reel 3000 WR 0.35 035 Tape and Reel 4000 YR 0.50 050 Tape and Reel 4000 YR 0.75 075 Tape and Reel 4000 YR 1.10 110 Tape and Reel 3000 WR 1.50 150 Tape and Reel 2000 PR 1210L Series Specifications are subject to change without notice. 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