POLY-FUSE® Resettable PTCs Radial Leaded > 72R Series 72R Series RoHS * Description The 72R Series is designed to provide overcurrent protection to 72Vdc maximum voltage with a maximum 40A short circuit rating. Features • 72Vdc max voltage w/max • Resettable feature 40A short circuit rating • Ideal for a broad range of • RoHS compliant, Lead-Free general electronics using a and Halogen Free* low voltage power supply Agency Approvals Applications AGENCY • Load protection on wide • Computer peripherals range of low voltage power •General electronics supplies AGENCY FILE NUMBER E183209 • Computers R50119318 Electrical Characteristics Part Number I hold (A) I trip (A) V max (Vdc) I max (A) Pd typ. (W) 72R020X 0.20 0.40 72 40 72R025X 0.25 0.50 72 40 72R030X 0.30 0.60 72 40 72R040X 0.40 0.80 72 40 72R050X 0.50 1.00 72 72R065X 0.65 1.30 72 72R075X 0.75 1.50 72R090X 0.90 1.80 Maximum Time To Trip Resistance Agency Approvals Current (A) Time (Sec.) R min (Ω) R 1max (Ω) 0.41 1.00 2.20 1.830 4.400 X X 0.45 1.25 2.50 1.250 3.000 X X 0.49 1.50 3.00 0.880 2.100 X X 0.56 2.00 3.80 0.550 1.290 X X 40 0.77 2.50 4.00 0.500 1.170 X X 40 0.88 3.25 5.30 0.310 0.720 X X 72 40 0.92 3.75 6.30 0.250 0.600 X X 72 40 0.99 4.50 7.20 0.200 0.470 X X 72R110X 1.10 2.20 72 40 1.50 5.50 8.20 0.150 0.380 X X 72R135X 1.35 2.70 72 40 1.70 6.75 9.60 0.120 0.300 X X 72R160X 1.60 3.20 72 40 1.90 8.00 11.40 0.090 0.220 X X 72R185X 1.85 3.70 72 40 2.10 9.25 12.60 0.080 0.190 X X 72R250X 2.50 5.00 72 40 2.50 12.50 15.60 0.050 0.130 X X 72R300X 3.00 6.00 72 40 2.80 15.00 19.80 0.040 0.100 X X 72R375X 3.75 7.50 72 40 3.20 18.75 24.00 0.030 0.080 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) 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. 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. * Effective January 1, 2010, all 72R PTC products will be manufactured Halogen Free (HF). Existing Non-Halogen Free 72R PTC products may continue to be sold, until supplies are depleted. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 01/23/15 POLY-FUSE® Resettable PTCs Radial Leaded > 72R Series Temperature Rerating Ambient Operation Temperature -40°C -20°C 0°C 20°C Part Number 40°C 50°C 60°C 70°C 85°C 0.08 Hold Current (A) 72R020X 0.31 0.27 0.24 0.20 0.16 0.14 0.13 0.11 72R025X 0.39 0.34 0.30 0.25 0.20 0.18 0.16 0.14 0.10 72R030X 0.47 0.41 0.36 0.30 0.24 0.22 0.19 0.16 0.12 72R040X 0.62 0.54 0.48 0.40 0.32 0.29 0.25 0.22 0.16 72R050X 0.78 0.68 0.60 0.50 0.41 0.36 0.32 0.27 0.20 72R065X 1.01 0.88 0.77 0.65 0.53 0.47 0.41 0.35 0.26 72R075X 1.16 1.02 0.89 0.75 0.61 0.54 0.47 0.41 0.30 72R090X 1.40 1.22 1.07 0.90 0.73 0.65 0.57 0.49 0.36 72R110X 1.71 1.50 1.31 1.10 0.89 0.79 0.69 0.59 0.44 72R135X 2.09 1.84 1.61 1.35 1.09 0.97 0.85 0.73 0.54 72R160X 2.48 2.18 1.90 1.60 1.30 1.15 1.01 0.86 0.64 72R185X 2.87 2.52 2.20 1.85 1.50 1.33 1.17 1.00 0.74 72R250X 3.88 3.40 2.98 2.50 2.03 1.80 1.58 1.35 1.00 72R300X 4.65 4.08 3.57 3.00 2.43 2.16 1.89 1.62 1.20 72R375X 5.81 5.10 4.46 3.75 3.04 2.70 2.36 2.03 1.50 170% 72R Percentage of Rated Current 10 Time in Seconds 150% 130% 110% 10000 90% 1000 70% 50% 30% 1 250R 100000 10% Time in Seconds 0.20A 0.25A 0.30A 0.40A 0.50A 0.65A 0.75A 0.90A 1.10A 1.35A 1.60A 1.85A 2.50A 3.00A 3.75A 100 0.080A 0.120A 0.145A 0.180A Temperature Rerating Curve Average Time Current Curves -40 -30 -20 100 -1010 0 10 20 30 40 Temperature (°C) 50 60 70 80 1 Note: Typical Temperature rerating curve, refer to table for derating data 0.1 0.1 0.01 0.01 0.1 1 10 100 Current in Amperes 0.1 1 10 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. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 01/23/15 100 POLY-FUSE® Resettable PTCs Radial Leaded > 72R Series Soldering Parameters - Wave Soldering Max. ramping rate should not exceed 4°C/Sec. Max. solder temperature should not exceed 260°C Soldering Zone Time within 5°C of actual Max. solder temperature within 3 - 5 seconds Soldering 260 Cooling 220 Temperature (°C) Pre-Heating Zone Refer to the condition recommended by the flux manufacturer. 190 160 Preheating Total time from 25°C room to Max. solder temperature within 5 minutes including Pre-Heating time Cooling by natural convection in air. Cooling Zone 0 Max. ramping down rate should not exceed 6°C/Sec. Physical Specifications 60 min. 5 max. Time(s) Environmental Specifications Lead Material 0.20-0.40A: Tin-plated Copper clad steel 0.50-3.75A: Tin-plated Copper Operating/Storage Temperature -40°C to +85°C Soldering Characteristics Solderability per MIL–STD–202, Method 208 Maximum Device Surface Temperature in Tripped State 125°C Insulating Material Cured, flame retardant epoxy polymer meets UL 94V-0 requirements. Passive Aging +85°C, 1000 hours -/+5% typical resistance change Lead Solderability Marked with ‘LF’, voltage, current rating, and date code. Humidity Aging +85°C, 85% R.H. 1000 hours -/+5% typical resistance change Thermal Shock +85°C to -40°C 10 times -/+5% typical resistance change Solvent Resistance MIL–STD–202, Method 215 Moistrue Sesitivity Level Level 1, J–STD–020 © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 01/23/15 POLY-FUSE® Resettable PTCs Radial Leaded > 72R Series Dimensions Part Marking System Single Sided Marking E A Doub 0 Littelfuse Trademark Voltage Rating Current Rating 72 020X XXXX Littelfuse Trademark Date Code (Contact Littelfuse for additional information) B D F C Littelfuse Trademark A Part Number B C D E F Physical Characteristics Inches mm Inches mm Inches mm Inches mm Inches mm Inches mm Lead (dia) Max. Max. Max. Max. Typ. Typ. Min. Min. Max. Max. Typ. Typ. Inches mm 72R020X 0.29 7.4 0.46 11.7 0.20 5.1 0.30 7.6 0.12 3.1 0.047 1.2 0.02 0.51 Sn/CuFe 72R025X 0.29 7.4 0.50 12.7 0.20 5.1 0.30 7.6 0.12 3.1 0.047 1.2 0.02 0.51 Sn/CuFe 72R030X 0.29 7.4 0.50 12.7 0.20 5.1 0.30 7.6 0.12 3.1 0.047 1.2 0.02 0.51 Sn/CuFe 72R040X 0.30 7.6 0.53 13.5 0.20 5.1 0.30 7.6 0.12 3.1 0.047 1.2 0.02 0.51 Sn/CuFe 72R050X 0.31 7.9 0.54 13.7 0.20 5.1 0.30 7.6 0.12 3.1 0.047 1.2 0.02 0.51 Sn/Cu 72R065X 0.37 9.4 0.57 14.5 0.20 5.1 0.30 7.6 0.12 3.1 0.047 1.2 0.02 0.51 Sn/Cu 72R075X 0.40 10.2 0.60 15.2 0.20 5.1 0.30 7.6 0.12 3.1 0.047 1.2 0.02 0.51 Sn/Cu 72R090X 0.44 11.2 0.62 15.8 0.20 5.1 0.30 7.6 0.12 3.1 0.047 1.2 0.02 0.51 Sn/Cu Material 72R110X 0.51 13.0 0.72 18.2 0.20 5.1 0.30 7.6 0.12 3.1 0.055 1.4 0.03 0.81 Sn/Cu 72R135X 0.53 13.58 0.78 19.8 0.20 5.1 0.30 7.6 0.12 3.1 0.055 1.4 0.03 0.81 Sn/Cu 72R160X 0.60 15.36 0.85 21.6 0.20 5.1 0.30 7.6 0.12 3.1 0.055 1.4 0.03 0.81 Sn/Cu 72R185X 0.66 16.76 0.91 23.0 0.20 5.1 0.30 7.6 0.12 3.1 0.055 1.4 0.03 0.81 Sn/Cu 72R250X 0.78 19.93 1.03 26.2 0.40 10.2 0.30 7.6 0.12 3.1 0.055 1.4 0.03 0.81 Sn/Cu 72R300X 0.91 23.11 1.15 29.3 0.40 10.2 0.30 7.6 0.12 3.1 0.055 1.4 0.03 0.81 Sn/Cu 72R375X 1.04 26.3 1.22 31.1 0.40 10.2 0.30 7.6 0.12 3.1 0.055 1.4 0.03 0.81 Sn/Cu © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 01/23/15 POLY-FUSE® Resettable PTCs Radial Leaded > 72R Series Part Ordering Number System 72 R 090 X PR PACKAGING STYLE BLANK: Bulk R: Tape & Ammo SERIES QUANTITY CODE: F=200 H=100 M=1000 P=2000 U=500 TYPE: X (72VDC) I HOLD CURRENT CODE (Refer to Packaging or Electrical Characteristics tables) R: RADIAL VOLTAGE RATING (VDC) Packaging Part Number 72R020X 72R025X 72R030X 72R040X 72R050X 72R065X 72R075X 72R090X 72R110X 72R135X 72R160X 72R185X 72R250X 72R300X 72R375X Ordering Part Number 72R020XU 72R020XPR 72R025XU 72R025XPR 72R030XU 72R030XPR 72R040XU 72R040XPR 72R050XU 72R050XPR 72R065XU 72R065XPR 72R075XU 72R075XPR 72R090XU 72R090XPR 72R110XU 72R110XMR 72R135XF 72R135XMR 72R160XF 72R160XMR 72R185XF 72R185XMR 72R250XF 72R250XMR 72R300XF 72R300XMR 72R375XH © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 01/23/15 I hold (A) I hold Code 0.20 020 0.25 025 0.30 030 0.40 040 0.50 050 0.65 065 0.75 075 0.90 090 1.10 110 1.35 135 1.60 160 1.85 185 2.50 250 3.00 300 3.75 375 Packaging Option Quantity Quantity & Packaging Codes Bulk 500 U Tape and Ammo 2000 PR Bulk 500 U Tape and Ammo 2000 PR Bulk 500 U Tape and Ammo 2000 PR Bulk 500 U Tape and Ammo 2000 PR Bulk 500 U Tape and Ammo 2000 PR Bulk 500 U Tape and Ammo 2000 PR Bulk 500 U Tape and Ammo 2000 PR Bulk 500 U Tape and Ammo 2000 PR Bulk 500 U Tape and Ammo 1000 MR Bulk 200 F Tape and Ammo 1000 MR Bulk 200 F Tape and Ammo 1000 MR Bulk 200 F Tape and Ammo 1000 MR Bulk 200 F Tape and Ammo 1000 MR Bulk 200 F Tape and Ammo 1000 MR Bulk 100 H POLY-FUSE® Resettable PTCs Radial Leaded > 72R Series Tape and Ammo Specifications Devices taped using EIA468-B/IE286-2 standards. See table below and Figure 1 for details. Dimension EIA Mark IEC Mark Carrier tape width W Hold down tape width Dimensions Dim. (mm) Tol. (mm) W 18 –0.5 / +1.0 W4 W0 11 min. Top distance between tape edges W6 W2 3 max. Sprocket hole position W5 W1 9 –0.5 / +0.75 Sprocket hole diameter* D0 D0 4 –0.32 / +0.2 Abscissa to plane (straight lead) H H 18.5 –/+ 3.0 Abscissa to plane (kinked lead) H0 H0 16 –/+ 0.5 Abscissa to top 72R020X–72R090X H1 H1 32.2 max. Abscissa to top 72R110X–72R300X H1 47.5 max. Overall width without lead protrusion: 72R020X–72R090X C1 42.5 max. Overall width without lead protrusion: 72R110X–72R300X Overall width with lead protrusion: 72R020X–72R090X 57 C2 Overall width with lead protrusion: 72R110X–72R300X Lead protrusion 43.2 max. 1.0 max. max. 58 L1 l1 Protrusion of cut out L L 11 Protrusion beyond hold–down tape l2 l2 Not specified Sprocket hole pitch: 72R020X–72R090X P0 P0 12.7 –/+ 0.3 Sprocket hole pitch: 72R110X–72R300X P0 P0 25.4 –/+ 0.5 Pitch tolerance 20 consecutive. –/+ 1 Device pitch: 72R020X–72R090X 12.7 Device pitch: 72R110X–72R300X 25.4 Tape thickness t Tape thickness with splice t1 t Splice sprocket hole alignment 0.9 max. 2.0 max. 0 –/+ 0.3 Body lateral deviation Δh Δh 0 –/+ 1.0 Body tape plane deviation Δp Δp 0 –/+ 1.3 Ordinate to adjacent component lead*: 72R020X–72R090X P1 P1 3.81 –/+ 0.7 7.62 –/+ 0.7 Ordinate to adjacent component lead*: 72R110X–72R300X Lead spacing: 72R020X–72R185X F F 5.08 –/+ 0.8 Lead spacing: 72R250X–72R300X F F 10.18 –/+ 0.8 *Differs from EIA Specification © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 01/23/15 POLY-FUSE® Resettable PTCs Radial Leaded > 72R Series Tape and Ammo Diagram Figure 1 ∆h ∆h ∆h ∆p Reference plane A1 H1 F A L B H0 W4 W5 W H1 C1 H C2 I2 L1 P0 D0 Direction of unreeling Cross section A - B t Reel Upper side Direction of unreeling Tape Lower side w1 w2 Cross section Optional shape: Circular or polygonal WARNING • Users shall independently assess the suitability of these devices for each of their applications • Operation of these devices beyond the stated maximum ratings could result in damage to the devices and lead to electrical arcing and/or fire • These devices are intended to protect against the effects of temporary over-current or over-temperature conditions and are not intended to perform as protective devices where such conditions are expected to be repetitive or prolonged in duration • Exposure to silicon-based oils, solvents, electrolytes, acids, and similar materials can adversely affect the performance of these PPTC devices • These devices undergo thermal expansion under fault conditions, and thus shall be provided with adequate space and be protected against mechanical stresses • Circuits with inductance may generate a voltage (L di/dt) above the rated voltage of the PPTC device. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 01/23/15