Positive Temperature Coefficient devices (PTCs) 2017 by Littelfuse

More catalogs by Littelfuse | Positive Temperature Coefficient devices (PTCs) 2017 | 128 pages | 2017-11-12

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Positive Temperature Coefficient devices (PTCs) 2017 is listed under these categories

Industrial Supply > Electrical & Test > Electronic Components

Featured catalog pages of Positive Temperature Coefficient devices (PTCs) 2017

poly-fuse® resettable ptcs ptc characteristics and terms continued leakage current when a ptc is in a tripped state it protects the circuitry by limiting the current flow to a low leakage level leakage current can range from less than a hundred milliamps ma at rated voltage up to a few hundred milliamps ma at lower voltages fuses on the other hand completely interrupt the current flow when tripped and this open circuit results in no leakage current when subjected to an overload current time-current characteristic comparing the timecurrent curves of ptcs to time-current curves of fuses show that the speed of response for a ptc is similar to the time delay of a littelfuse slo-blo® fuse interrupting rating ptcs are rated for a maximum ambient temperature effects are in addition to the normal rerating ptcs hold and trip rating must be rerated when applied at conditions other than room ambient for example any rise in ambient temperature will decrease the hold current rating as well

poly-fuse® resettable ptcs surface mount 0402l series temperature rerating ambient operation temperature -40°c -20°c 0°c 20°c 0402l010sl 0.15 0.13 0.12 0.10 0402l020sl 0.29 0.27 0.24 0.20 0402l035sl 0.51 0.47 0.41 0402l050sl 0.74 0.67 0.59 40°c 50°c 60°c 70°c 85°c 0.09 0.07 0.06 0.05 0.01 0.17 0.14 0.11 0.10 0.03 0.35 0.30 0.25 0.20 0.18 0.07 0.50 0.43 0.36 0.29 0.26 0.10 hold current a part number average time current curves temperature rerating curve time-to-trip curve 170 100.00 130 10.00 a-0402l010sl b-0402l020sl c-0402l035sl d-0402l050sl a 110 time to trip sec 90 time in seconds percentage of rated current 150 70 50 30 1.00 c d b 0.10 10 -40 -30 -20 -10 0 10 20 30 40 temperature °c 50 note typical temperature rerating curve refer to table for derating data 60 70 80 0.01 0.00 0.10 1.00 10.00 current in amperes fault current amp the average time current curves and temperature rerating curve performance is affected by a number or variables and

poly-fuse® resettable ptcs surface mount 0805l series dimensions marking code varies with amperage rating see electrical characteristic table shown is 1.0amp rating c a top view n bottom view n side view b 1.20 mm 047 pad layout d e 1.00 mm 040 a part number 1.50 mm 059 b inches mm inches c mm inches d mm inches e mm inches mm min max min max min max min max min max min max min max min max min max min max 0805l010 0.08 0.09 2.00 2.20 0.05 0.06 1.20 1.50 0.02 0.04 0.55 1.00 0.01 0.02 0.20 0.55 0.002 0.02 0.05 0.45 0805l010/24 0.08 0.09 2.00 2.20 0.05 0.06 1.20 1.50 0.02 0.04 0.55 1.00 0.01 0.02 0.20 0.55 0.002 0.02 0.05 0.45 0805l020 0.08 0.09 2.00 2.20 0.05 0.06 1.20 1.50 0.02 0.04 0.55 1.00 0.01 0.02 0.20 0.55 0.002 0.02 0.05 0.45 0805l035 0.08 0.09 2.00 2.20 0.05 0.06 1.20 1.50 0.02 0.03 0.45 0.75 0.01 0.02 0.20 0.55 0.002 0.02 0.05 0.45 0805l050 0.08 0.09 2.00 2.20 0.05 0.06 1.20 1.50 0.03 0.05 0.75 1.25 0.01 0.02 0.20 0.55 0.002 0.02 0.05 0.45 0805l075 0.08 0.09 2.00 2.20

poly-fuse® resettable ptcs surface mount 1210l series tape and reel specifications tape specifications eia-481-1 mm packaging code “yr” 1210l035 1210l050 1210l075 1210l110th packaging code “wr” 1210l005 1210l010 1210l020 1210l110/12 1210l110/16 1210l150th 1210l175 packaging code “pr” 1210l200 packaging code “pr” 1210l075/24 w 8.00  0.30 8.00  0.30 8.00  0.30 8.00  0.30 c Ø178  1.0 f 3.50  0.05 3.50  0.05 3.50  0.05 3.50  0.05 d Ø60.2  0.5 reel dimensions eia-481-1 mm e1 1.75  0.10 1.75  0.10 1.75  0.10 1.75  0.10 h 11.0  0.05 d0 1.55  0.05 1.55  0.05 1.55  0.05 1.55  0.05 w 9.0  1.5 d1 1.00 min 1.00 min 1.00 min 1.00+0.25  0 p0 4.00  0.10 4.00  0.10 4.00  0.10 4.00  0.10 p1 4.00  0.10 4.00  0.10 4.00  0.10 4.00  0.10 p2 2.00

poly-fuse® resettable ptcs surface mount 2016l series tape and reel specifications tape specifications eia-481-1 mm 2016l100 2016l200 2016l030 2016l100/33 2016l150 2016l050 2016l075/60 w 12.0  0.30 12.0  0.30 12.0  0.30 reel dimensions eia-481-1 mm c Ø178.0 1.0 f 5.50  0.05 5.50  0.05 5.50  0.05 d Ø60.2 0.5 e1 1.75  0.10 1.75  0.10 1.75  0.10 h 16.0  0.5 d0 1.55  0.05 1.55  0.05 1.55  0.05 w 13.2  1.5 d1 1.50 min 1.50 min 1.50 min p0 4.0  0.10 4.0  0.10 4.0  0.10 p1 8.0  0.10 8.0  0.10 8.0  0.10 p2 2.0  0.05 2.0  0.05 2.0  0.05 a0 4.40  0.10 4.48  0.10 4.45  0.10 b0 5.50  0.10 5.40  0.10 5.48  0.10 t 0.25  0.10 0.25  0.10 0.25  0.10 ko 0.80  0.10 1.36  0.10 1.86  0.10 leader min 390 390 390 trailer min 160 160 160 tape and reel

poly-fuse® resettable ptcs radial leaded usbr series usbr series rohs description • the usbr series radial leaded device is designed to provide overcurrent protection for usb applications where space is not a concern features • rohs compliant and lead–free • fast time–to–trip • meets all usb protection requirements agency approvals agency • 40a short circuit rating •o  perating voltages of 6-16v applications agency file number • computers peripherals • any usb application e183209 r50119318 additional information datasheet samples resources electrical characteristics pd max w maximum time to trip part number i hold a 06r075b 0.75 1.30 6 40 0.3 8.00 06r120b 1.20 2.00 6 40 0.6 8.00 06r155b 1.55 2.70 6 40 0.6 7.75 2.2 16r090b 0.90 1.80 16 40 0.6 8.00 16r110b 1.10 2.20 16 40 0.7 8.00 16r135b 1.35 2.70 16 40 0.8 8.00 16r160b 1.60 3.20 16 40 0.9 8.00 i trip a v max vdc i max a current a resistance agency approvals

poly-fuse® resettable ptcs radial leaded 30r 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 physical specifications lead material soldering characteristics 0 max ramping down rate should not exceed 6°c/sec 0.90-2.50a tin-plated copper clad steel 3.00-9.00a tin-plated copper solderability per mil–std–202 method 208 insulating material cured flame retardant epoxy polymer meets ul94v-0 requirements device labeling marked with ‘lf’ voltage current rating and date code © 2015 littelfuse inc

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 •l  oad 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 72r030x 0.30 0.60 72 72r040x 0.40 0.80 72r050x 0.50 1.00 72r065x 0.65 72r075x 0.75 72r090x 72r110x maximum time to trip resistance agency approvals current a time sec r min Ω r 1max Ω 0.41 1.00 2.20

poly-fuse® resettable ptcs radial leaded 250r 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 dimensions dim mm tol mm w 18 –0.5 +1.0 hold down tape width 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 h1 h1 32.2 max overall width without lead protrusion c1 42.5 max overall width with lead protrusion c2 43.2 max lead protrusion l1 1.0 max max l1 protrusion of cut out l l 11 protrusion beyond hold–down tape l2 l2 not specified sprocket hole pitch 250r080–250r145 p0 p0 12.7 – 0.3 sprocket hole pitch 250r180 p0 p0 25.4 – 0.5 20 consecutive – 1 pitch tolerance device pitch

poly-fuse® resettable ptcs axial lead battery strap type lt series lt series rohs description the new lt series device provides reliable noncycling protection against overcharging and short circuits events for rechargeable battery cells where resettable protection is desired features • low resistance • provides overcurrent protection at 100°c trip temperature • rohs compliant and lead–free • weldable nickel terminals • compact design saves board space agency approvals agency agency file number applications e183209 • rechargeable battery cell protection mobile phones laptop computers r50119583 electrical characteristics part number i hold a i trip a v max vdc i max a pd max w 24lt100 1.0 2.5 24 100 1.5 maximum time to trip agency approvals resistance current a time sec r min Ω r typ Ω r 1max Ω 5.00 7.00 0.070 0.130 0.260 x x i hold hold current maximum current device will pass without tripping in 20°c still air r typ