POLYFUSE® Resettable PTCs Surface Mount > Lo Rho Series Lo Rho Surface Mount Series Description The Littelfuse Lo Rho Surface Mount PPTC (polymer positive temperature coefficient) series offers ultra low normal operating resistance while maintains the same performance of existing Littelfuse PPTC products. Features Agency Approvals AGENCY • Compact design saves board space • Thin-profile <0.75mm • Compatible with high temperature solders • Lo Rho (low resistance at normal operating hold current) • RoHS compliant, Lead Free and Halogen Free • Fast response to fault currents AGENCY FILE NUMBER E183209 R50119118 Applications • PDAs / digital cameras • Game console port protection • USB peripherals • Disk drives • CD-ROMs • Plug and play protection for motherboards and peripherals Electrical Characteristics V max (Vdc) I max (A) Maximum Time To Trip Resistance Agency Approvals Marking 0805L075SLYR -G 0,75 1.50 6 50 0.6 8.00 0.20 0.040 0.160 X X 0805L110SLYR -H 1.10 1.80 6 50 0.6 8.00 0.30 0.030 0.130 X X Part Number I trip (A) Pd max. (W) I hold (A) Current (A) Time (Sec.) R min (Ω) R 1max (Ω) 1206L110SLYR -H 1.10 2.20 6 50 0.8 8.00 0.30 0.015 0.100 X X 1206L150SLYR -K 1.50 3.00 6 50 0.8 8.00 0.30 0.010 0.065 X X 1210L200SLYR -L 2.00 4.00 6 50 0.8 8.00 3.00 0.005 0.024 X X 1210L350SL-SYR -T 3.50 7.00 6 50 0.8 17.50 2.00 0.003 0.018 X X 1812L190SLPR LF 19 1.90 4.90 6 50 1.0 9.50 4.50 0.003 0.025 X X 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. R min = Minimum 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. © 2010 Littelfuse, Inc Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/LoRho.html for current information. 9 Revised: June 4, 2010 Lo Rho Series Lo Rho Series Available in 5 hold current ratings, all devices are TUV and UL certified and possess a maximum fault current rating of 40A. POLYFUSE® Resettable PTCs Surface Mount > Lo Rho Series Temperature Rerating Ambient Operation Temperature -40°C -20°C 0°C 20°C 1.24 1.07 0.94 0.75 0805L110SLYR 1.93 1.65 1.38 1206L110SLYR 2.00 1.70 1.40 1206L150SLYR 2.67 2.32 1210L200SLYR 3.26 1210L350SL-SYR 1812L190SLPR 40°C 60°C 70°C 85°C 0.62 0.47 0.37 0.23 1.10 0.83 0.55 0.41 0.21 1.10 0.83 0.56 0.44 0.24 1.95 1.50 1.15 0.78 0.64 0.36 2.87 2.50 2.00 1.70 1.29 1.09 0.78 5.00 4.60 4.05 3.50 2.80 2.00 1.60 1.00 3.00 2.58 2.22 1.90 1.49 1.14 0.93 0.61 Hold Current (A) Part Number 0805L075SLYR Temperature Rerating Curve /6/ 170% 150% Percentage of Rated Current /6/ /6/ /6/ /6/ /6/ /6/ Average Time Current Curves LoRho Series 130% 110% 90% 70% 50% Time in Seconds 30% 10% -40 -30 -20 -10 0 10 20 30 40 Temperature (°C) 50 60 70 80 Environmental Specifications Operating/Storage Temperature -40°C to +85°C Maximum Device Surface Temperature in Tripped State 125°C Passive Aging +85°C, 1000 hours -/+10% typical resistance change Humidity Aging +85°C, 85% R.H.,100 hours -/+15% 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 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. Physical Specifications Terminal Material Solder-Plated Copper (Solder Material: Matte Tin (Sn)) Vibration MIL–STD–883C, Method 2007.1, Condition A No change Lead Solderability Meets EIA Specification RS186-9E, ANSI/J-STD-002, Category 3. Moisture Sensitivity Level Level 1, J–STD–020C Lo Rho Series 10 Revised: June 4, 2010 © 2010 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/LoRho.html for current information. POLYFUSE® Resettable PTCs Surface Mount > Lo Rho Series Profile Feature Pb-Free Assembly Average Ramp-Up Rate (TS(max) to TP) 3°C/second max Pre Heat: Temperature Min (Ts(min)) 150°C Temperature Max (Ts(max)) 200°C Time (Min to Max) (ts) 60 – 180 secs Time Maintained Temperature (TL) 217°C Above: 60 – 150 seconds Temperature (tL) Peak / Classification Temperature (TP) 260+0/-5 °C 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. -- 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 (0.010 inch) -- Devices can be cleaned using standard industry methods and solvents -- Devices can be reworked using the standard industry practices Dimensions Device Dimensions Solder Pad Layout C A Top View Side View B H G F F Marking code varies by device -See Electrical Characteristics table Bottom View D E Device Dimension Part Number Solder Pad Layout A B C D E mm mm mm mm mm Min Max Min Max Min Max Min Max Min Max F G H mm mm mm 0805L075SLYR 2.00 2.20 1.20 1.50 0.40 0.75 0.20 0.55 0.05 0.45 1.00 1.20 1.50 0805L110SLYR 2.00 2.20 1.20 1.50 0.40 0.75 0.20 0.55 0.10 0.45 1.00 1.20 1.50 1206L110SLYR 3.00 3.40 1.50 1.80 0.40 0.75 0.25 0.75 0.10 0.45 1.00 1.80 1.80 1206L150SLYR 3.00 3.40 1.50 1.80 0.40 0.70 0.25 0.75 0.10 0.45 1.00 1.80 1.80 1210L200SLYR 3.00 3.43 2.35 2.80 0.40 0.70 0.25 0.75 0.20 0.50 1.00 2.00 2.50 3.00 3.43 2.35 2.80 0.60 1.00 0.25 0.75 0.20 0.50 1.00 2.00 2.50 4.37 4.73 3.07 3.41 0.40 0.70 0.30 1.20 0.25 0.65 1.78 3.45 3.15 1210L350SL-SYR 1812L190SLPR © 2010 Littelfuse, Inc Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/LoRho.html for current information. 11 Revised: June 4, 2010 Lo Rho Series Lo Rho Series Soldering Parameters POLYFUSE® Resettable PTCs Surface Mount > Lo Rho Series Part Ordering Number System Packaging 0805 L 110 SL Y R Quantity & I hold I hold Packaging Quantity Packaging (A) Code Option Codes Part Number SERIES PACKAGING STYLE R: Tape & Reel 0805L075SLYR 0.75 075 4000 YR QUANTITY CODE 0805L110SLYR 1.10 110 4000 YR 1206L110SLYR 1.10 110 4000 YR 4000 YR P: 2000 Y: 4000 SL: LoRho PTC Series I HOLD HOLD CURRENT CODE L: LITTELFUSE SURFACE MOUNT PPTC Tape & Reel 1206L150SLYR 1.50 150 1210L200SLYR 2.00 200 4000 YR 1210L350SL-SYR 3.50 350 4000 YR 190 2000 PR 1812L190SLPR 1.90 SIZE Tape and Reel Specifications TAPE SPECIFICATIONS: EIA-481-1 (mm) 0805L075SL 0805L110SL 1206L110SL 1206L150SL W 8.0+/- 0.10 F 3.5+/- 0.05 E1 REEL DIMENSIONS: EIA-481-1 (mm) 1210L200SL 1210L350SL-S 1812P190SL 8.15+0.15-0.30 8.0+/- 0.30 12.00+0.30-0.10 3.50+/- 0.05 3.5+/- 0.05 5.50+/- 0.05 1.75+/- 0.10 1.75+/- 0.10 1.75+/- 0.10 1.75+/- 0.10 0805L075SL 0805L110SL 1210L200SL 1206L110SL 1206L150SL 1812P190SL H 12.0+/- 0.05 16.0+/- 0.2 W 9.0+/- 0.5 13.2+/- 1.5 D Ø60+0.5 Ø 60.2+/−0.5 D0 1.55+/- 0.05 1.55+/- 0.05 1.55+/- 0.05 1.50+0.10 F Ø13.0+/- 0.2 Ø 13.0+/- 0.5 D1 1.0 (min) 1.00 (MIN) 1.0 (min) 1.50+0.25 C Ø178+/- 1.0 Ø 178+/- 1.0 P0 4.0+/- 0.10 4.00+/- 0.10 4.0+/- 0.10 4.00+/- 0.10 H1 11+/- 0.5 11+/- 0.5 P1 4.0+/- 0.10 4.00+/- 0.10 4.0+/- 0.10 8.00+/- 0.10 W1 2.2+/- 0.5 2.5+0.5 P2 2.0+/- 0.05 2.00+/- 0.05 2.0+/- 0.05 2.00+/- 0.05 W2 3.0+0.5 3.0+0.5 A0 1.45+/- 0.10 1.95+/- 0.10 2.82+/- 0.10 3.58+/- 0.10 W3 4.0+0.5 4.0+0.5 B0 2.30+/- 0.10 3.65+/- 0.10 3.46+/- 0.10 4.93+/- 0.10 W4 5.5+0.5 5.0+0.5 T 0.25+/- 0.10 0.25+/- 0.10 0.25+/- 0.10 0.25+/- 0.10 K0 0.74+/- 0.10 0.87+/- 0.10 1.00+/- 0.10 1.02+/- 0.10 Leader min. 390 390 390 390 Trailer min. 160 160 160 160 Tape and Reel Diagram H P1 P2 D0 E1 P0 W4 W3 D F W T W2 W F D2 C W1 A0 Lo Rho Series K0 H1 B0 12 Revised: June 4, 2010 © 2010 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/LoRho.html for current information.