POLYFUSE® Resettable PTCs Surface Mount 2920L Series Description The 2920L series device provides surface mount overcurrent protection for medium voltage (≤60V) applications where resettable protection is desired. Features • High voltage • Low-profile • RoHS compliant and lead-free • Fast response to fault currents Agency Approvals AGENCY Applications AGENCY FILE NUMBER • IEE1394 port protection •P owered ethernet port protection (IEEE 802.3 af) • Automotive electronic control module protection E183209 R50082521 • Low voltage telecom equipment protection Electrical Characteristics Marking I hold (A) I trip (A) V max (Vdc) I max (A) Pd max. (W) 2920L030 LF030 0.30 0.60 60 10 2920L050 LF050 0.50 1.00 60 10 2920L075 LF075 0.75 1.50 30 2920L100 LF100 1.10 2.20 2920L125 LF125 1.25 2920L150 LF150 1.50 2920L185 LF185 2920L200 Part Number 2920L200/24 Maximum Time To Trip Agency Approvals Resistance Current (A) Time (Sec.) R min (Ω) R typ (Ω) R 1max (Ω) 1.50 1.50 3.00 1.200 3.000 4.800 X X 1.50 2.50 4.00 0.350 0.870 1.400 X X 40 1.50 8.00 0.30 0.350 0.670 1.000 X X 33 40 1.50 8.00 0.50 0.120 0.270 0.410 X X 2.50 15 40 1.50 8.00 2.00 0.070 0.160 0.250 X X 3.00 33 40 1.50 8.00 2.00 0.080 0.150 0.230 X X 1.85 3.70 33 40 1.50 8.00 2.50 0.065 0.110 0.150 X X LF200 2.00 4.00 15 40 1.50 8.00 5.00 0.050 0.090 0.125 X X LF200-24 2.00 4.00 24 40 1.50 8.00 5.00 0.050 0.090 0.125 X X 2920L250 LF250 2.50 5.00 15 40 1.50 8.00 10.00 0.035 0.060 0.085 X X 2920L260 LF260 2.60 5.00 6 40 1.50 8.00 10.00 0.025 0.050 0.075 X X 2920L300 LF300 3.00 5.00 6 40 1.50 8.00 20.00 0.015 0.033 0.048 X X LF300-15 3.00 5.00 15 40 1.50 8.00 20.00 0.015 0.033 0.048 X X 2920L300/15 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. 2920L 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) 2920L030 0.45 0.40 0.35 0.30 0.25 0.23 0.20 0.17 0.14 2920L050 0.76 0.67 0.59 0.50 0.42 0.38 0.33 0.29 0.23 2920L075 1.13 1.01 0.88 0.75 0.62 0.56 0.50 0.44 0.34 2920L100 1.66 1.47 1.29 1.10 0.91 0.83 0.73 0.64 0.50 2920L125 1.89 1.68 1.46 1.25 1.04 0.94 0.83 0.73 0.56 2920L150 2.27 2.01 1.76 1.50 1.25 1.13 1.00 0.87 0.74 2920L185 2.80 2.47 2.17 1.85 1.54 1.39 1.22 1.07 0.85 2920L200 3.02 2.68 2.34 2.00 1.66 1.50 1.32 1.16 0.90 2920L200/24 3.14 2.77 2.42 2.00 1.73 1.56 1.38 1.20 0.98 2920L250 3.78 3.35 2.93 2.50 2.08 1.88 1.65 1.45 1.13 2920L260 3.64 3.25 2.91 2.60 2.26 2.08 1.95 1.74 1.48 2920L300 4.53 4.02 3.51 3.00 2.52 2.26 1.99 1.75 1.34 2920L300/15 4.20 3.85 3.44 3.00 2.69 2.50 2.31 2.12 1.83 2920L Series Temperature Rerating Curve 1.25A 1.50A 1.85A 2.00A/24V 2.00A 2.50A 2.60A 3.00A/15V 3.00A 1.00A 0.500A 0.750A 0.300A 0.100A Average Time Current Curves 100000 10000 TIME IN SECONDS 1000 100 10 1 0.100 0.010 0.001 0.02 0.100 1 10 100 CURRENT IN AMPERES The average time currentSpecifications curves and are temperature rerating curve performance is affected subject to change without notice. provided as guidance only. CustomerAKL must V3.9 06.05.10 verify the performance in their application. by 1.00 a number variables, theseplaces. curves Note: means theor number one with and two decimal 2920L 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 Vibration MIL-STD-883C, Method 2007.1, Condition A 2920L Series Specifications are subject to change without notice. Electronics Designers Guide www.littelfuse.com ©2006 Littelfuse POLYFUSE® Resettable PTCs Surface Mount Dimensions (mm) MARKING CODE VARIES WITH AMPERAGE AND VOLTAGE RATING (SEE CHART) SHOWN ARE: - 1.5A/33V RATING (LEFT) - 2.0A/24V RATING (RIGHT) C A Top View 150 Bottom View 150 200 -24 B 4.60 mm (.181”) Pad Layout D E Side View 5.30 mm (.209”) 2.0mm (.079”) A Part Number Inches B mm Inches C mm Inches D mm E Inches mm Inches mm Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Min. 2920L030 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.3 0.01 Min Max. Min. Max. 0.08 0.25 2 2920L050 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.3 0.01 0.08 0.25 2 2920L075 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.3 0.01 0.08 0.25 2 2920L100 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.02 0.04 0.55 1 0.01 0.3 0.01 0.08 0.25 2 2920L125 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.02 0.04 0.55 1 0.01 0.3 0.01 0.08 0.25 2 2920L150 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.3 0.01 0.08 0.25 2 2920L185 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.3 0.01 0.08 0.25 2 2920L200 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.3 0.01 0.08 0.25 2 2920L200/24 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.3 0.01 0.08 0.25 2 2920L250 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.3 0.01 0.08 0.25 2 2920L260 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.02 0.04 0.55 1 0.01 0.3 0.01 0.08 0.25 2 2920L300 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.3 0.01 0.08 0.25 2 2920L300/15 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.3 0.01 0.08 0.25 2 Part Numbering System 2920 L 200 /24 D R PACKAGING STYLE R: Tape & Reel SERIES QUANTITY CODE: D=1500 P=2000 /XX: SPECIAL VOLTAGE RATING (NOT APPLICABLE TO ALL PARTS) I HOLD CURRENT CODE (SEE TABLE BELOW) L: LITTELFUSE SURFACE MOUNT PPTC SIZE 2920L Series Specifications are subject to change without notice. Electronics Designers Guide www.littelfuse.com ©2006 Littelfuse POLYFUSE® Resettable PTCs Surface Mount Packaging I hold (A) I hold Code Voltage Option Packaging Option Quantity Quantity & Packaging Codes 0.30 030 Tape and Reel 1500 DR 0.50 050 Tape and Reel 1500 DR 0.75 075 Tape and Reel 1500 DR 1.10 100 Tape and Reel 2000 PR 1.25 125 Tape and Reel 2000 PR 1.50 150 Tape and Reel 1500 DR 1.85 185 Tape and Reel 1500 DR 2.00 200 Tape and Reel 1500 DR Tape and Reel 1500 DR 2.50 250 Tape and Reel 1500 DR 2.60 260 Tape and Reel 2000 PR 3.00 300 Tape and Reel 1500 DR Tape and Reel 1500 DR 2920L Series Specifications are subject to change without notice. /24 /15 Electronics Designers Guide www.littelfuse.com ©2006 Littelfuse