n single blow fuse for overcurrent protection n eia 3812 (10030 metric) footprint n ceramic tube design for time lag fusing speed and low power applications n ul 248-14 listed n meets iec 60127-1 and iec 60127-7 requirements n surface mount packaging for automated assembly n rohs compliant* and halogen free** electrical characteristics sf-3812tl-t series C time lag & low power smd fuses model rated current (a) fusing time resistance () typ.*** rated voltage interrupting rating typical i 2 t (a 2 s) **** agency recognition ul tuv sf-3812tl050t-2 0.5 open within 120 sec. at 250 % rated current 0.5479 250 vac 50 a @ 250 vac 1.963 ? pending sf-3812tl075t-2 0.75 0.26 3.375 ? pending sf-3812tl100t-2 1 0.18 11.22 ? ? sf-3812tl150t-2 1.5 0.1027 14.85 ? ? sf-3812tl200t-2 2 0.0504 19.84 ? ? sf-3812tl250t-2 2.5 0.037 20.5 ? ? sf-3812tl300t-2 3 0.028 54 ? ? sf-3812tl350t-2 3.5 0.0199 57.82 ? ? sf-3812tl400t-2 4 0.0158 125.6 ? ? SF-3812TL500T-2 5 0.012 185 ? ? reliability testing singlfuse ? sf-3812tl-t series features *** resistance value measured with 10 % rated current at 25 c ambient. tolerance 30 %. **** melting i 2 t calculated at 10 times rated current. no. test test condition requirement test reference 1 solderability temperature setup: 235 5 c time setup: 10 1 sec. after test terminal electrode wetting area must be greater than 95 % iec 60068-2-58 2 resistance to soldering heat temperature setup: 235 5 c time setup: 30 5 sec. dcr change 15 % iec 60068-2-58 3 thermal shock temperature setup: 25 c ~ -65 c ~ 25 c ~ 125 c time setup: -65 c (30 min) ~ 25 c (5 min) ~ 125 c (30 min) ~ 25 c (5 min), 5 cycles dcr change 15 % no mechanical damage mil-std-202g method 107g test condition b 4 humidity unload heat (85 0.5 c) high humidity (85 1 % rh) 240 hours dcr change 15 % no mechanical damage mil-std-202g method 103b test condition a 5 salt spray salt spray concentration: 5 1 % test liquid temperature: 35 0.5 c 96 hours dcr change 15 % no mechanical damage mil-std-202g method 101e test condition a 6 bending the board shall be bent by 1 mm at a rate of 1 mm/sec. dcr change 15 % iec 60127-4 7 vibration frequency setup: 10 ~ 55 ~ 10 hz time setup: 1 minute/cycle (x-y-z, 120 cycles, 6 hours) dcr change 15 % no mechanical damage mil-std-202g method 201a * rohs directive 2002/95/ec jan. 27, 2003 including annex and rohs recast 2011/65/eu june 8, 2011. ** bourns considers a product to be halogen free if (a) the bromine (br) content is 900 ppm or less; (b) the chlorine (cl) content is 900 ppm or less; and (c) the total bromine (br) and chlorine (cl) content is 1500 ppm or less. singlfuse is a trademark of bourns, inc. specifcations are subject to change without notice. users should verify actual device performance in their specifc applications. the products described herein and this document are subject to specifc legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 3.5a i warning cancer and reproductive harm - www.p65warnings.ca.gov
sf-3812tl-t series C time lag & low power smd fuses singlfuse ? sf-3812tl-t series applications how to order sf - 3812 tl 050 t - 2 singlfuse? product designator smd footprint 3812 = eia 3812 (10030 metric) fuse blow type tl = time lag & low power rated current 050 - 500 (0.50 a ~ 5.00 a) structure type t = ceramic tube packaging type - 2 = tape & reel typical part marking represents total content. layout may vary. packaging quantity 2,500 pieces per 13-inch reel construction operating temperature ................................................................................. -55 c to +125 c storage conditions temperature ............................................................................................. +15 c to +30 c humidity.......................................................................................................... 20 % to 70 % shelf life ........................................................................... 2 years from manufacturing date moisture sensitivity level ........................................................................................................ 1 esd classifcation (hbm) .............................................................................................. class 6 environmental characteristics product dimensions recommended pad layout i 3.5a 10.10 0.40 (.398 .016) 1.75 0.20 (.069 .008) 2.65 0.20 (.104 .008) 3.10 0.20 (.122 .008) 3.10 0.20 (.122 .008) n lighting systems n power adaptors n power supplies n ac/dc converters n telecom equipment system power 3.25 (.128) 6.10 (.240) 3.43 (.135) dimensions: mm (inches) dimensions: mm (inches) specifcations are subject to change without notice. users should verify actual device performance in their specifc applications. the products described herein and this document are subject to specifc legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. rated current part marking 0.50 a i500ma 0.75 a i750ma 1.00 a i1a 1.50 a i1.5a 2.00 a i2a 2.50 a i2.5a 3.00 a i3a 3.50 a i3.5a 4.00 a i4a 5.00 a i5a 3.5a i ceramic tube end cap (gold-plated brass) ul file number ............................ e198545 tuv file number ..................... r 50421699 agency recognition i 3.5a
sf-3812tl-t series C time lag & low power smd fuses current rating thermal derating curve pulse cycle withstand capability 120 100 80 60 40 20 0 -60 -40 -20 0 20 25 c 40 60 80 100 120 140 ambient temperature (c) derating (%) number of pulses 100,000 10,000 1,000 100 10 % 100 % pulse i 2 t / average melting i 2 t specifcations are subject to change without notice. users should verify actual device performance in their specifc applications. the products described herein and this document are subject to specifc legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
solder refow recommendations solder wave recommendations profle feature pb-free assembly preheat / soak: temperature min. (t smin ) temperature max. (t smax ) time (t s ) from (t smin to t smax ) 150 c 200 c 60~180 seconds ramp up rate (t l to t p ) 3 c / second max. ramp up rate (t smax to t l ) 5 c / second max. liquidous temperature (t l ) time (t l ) maintained above t l 217 c 60~90 seconds peak package body temperature (t p ) 235 c 5 c time within 5 c of actual peak temperature (t p ) 20~30 seconds* ramp down rate (t p to t l ) 6 c / second max. time 25 c to peak temperature 8 minutes max. do not exceed 240 c profle feature pb-free assembly preheat: temperature max. (t smax ) time (min. to max.) 150 c 60~90 seconds solder pot temperature 260 c max. solder dwell time 2~3 seconds temperature time t 25 c to peak t p t l t max. s t min. 25 c s t s preheat t p ramp-up t p t to l critical zone ramp-down t l temperature (c) peak temperature (dwell time) time (sec.) 20 40 preheat time 60 80 100 120 140 160 180 200 220 240 cooling time 300 280 260 240 220 200 180 160 140 120 100 80 60 40 20 0 * tolerance for peak profle temperature (tp ) is defned as a supplier minimum and a user maximum. sf-3812tl-t series C time lag & low power smd fuses ? ?
3312 - 2 mm smd trimming potentiometer sf-3812tl-t series C time lag & low power smd fuses average pre-arcing time vs. current curves average i 2 t vs. t curves 0.5 a 0.75 a 1 a 1.5 a 2 a 5 a 4 a 3.5 a 3 a 2.5 a 100000 10000 1000 100 10 1 0.1 0.01 pre-arcing time (seconds) 0.1 1 10 100 current (a) 1000000 100000 10000 1000 100 10 1 i 2 t (a 2 s) 0.01 0.1 1 10 100 1000 10000 100000 time (seconds) 0.5 a 0.75 a 1 a 1.5 a 2 a 2.5 a 3 a 3.5 a 4 a 5 a 0.5 a 0.75 a 1 a 1.5 a 2 a 5 a 4 a 3.5 a 3 a 2.5 a 100000 10000 1000 100 10 1 0.1 0.01 pre-arcing time (seconds) 0.1 1 10 100 current (a) 1000000 100000 10000 1000 100 10 1 i 2 t (a 2 s) 0.01 0.1 1 10 100 1000 10000 100000 time (seconds) 0.5 a 0.75 a 1 a 1.5 a 2 a 2.5 a 3 a 3.5 a 4 a 5 a specifcations are subject to change without notice. users should verify actual device performance in their specifc applications. the products described herein and this document are subject to specifc legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
specifcations are subject to change without notice. users should verify actual device performance in their specifc applications. the products described herein and this document are subject to specifc legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. rev. 05/19 330.00 1.50 (12.992 .059) dia. 1.50 0.10 (.059 .004) dia. 4.00 0.10 (.157 .004) 8.00 0.10 (.315 .004) 2.00 0.10 (.079 .004) 1.75 0.10 (.069 .004) 11.50 0.10 (.453 .004) 24.00 0.30 (.945 .012) 1.50 0.10 (.059 .004) a b b a 100.00 1.50 (3.937 .059) 30.00 1.00 (1.182 .039) 3.40 0.10 (.134 .004) section a-a section b-b 10.40 0.10 (.409 .004) 0.30 0.05 (.012 .002) 3.40 0.10 (.134 .004) sf-3812tl-t series C time lag & low power smd fuses packaging specifcations dimensions: mm (inches) asia-pacifc: tel: +886-2 2562-4117 ? email: asiacus@bourns.com emea: tel: +36 88 885 877 ? email: eurocus@bourns.com the americas: tel: +1-951 781-5500 ? email: americus@bourns.com www.bourns.com
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product also can and do vary in different applications and actual performance may vary over time. users should always verify the actual performance of the bourns ? product in their specifc devices and applications, and make their own independent judgments regarding the amount of additional test margin to design into their device or application to compensate for differences between laboratory and real world conditions. unless bourns has explicitly designated an individual bourns ? product as meeting the requirements of a particular industry standard (e.g., iso/ts 16949) or a particular qualifcation (e.g., ul listed or recognized), bourns is not responsible for any failure of an individual bourns ? product to meet the requirements of such industry standard or particular qualifcation. users of bourns ? products are responsible for ensuring compliance with safety-related requirements and standards applicable to their devices or applications. bourns ? products are not recommended, authorized or intended for use in nuclear , lifesaving, life-critical or life-sustaining ap - plications, nor in any other applications where failure or malfunction may result in personal injury , death, or severe property or environmental damage. unless expressly and specifcally approved in writing by two authorized bourns representatives on a case-by-case basis, use of any bourns ? 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products may not, without prior authorization from bourns and/or the u.s. government, be resold, transferred, or re-exported to any party not eligible to receive u.s. commodities, software, and technical data. to the maximum extent permitted by applicable law, bourns disclaims (i) any and all liability for special, punitive, consequential, incidental or indirect damages or lost revenues or lost profts, and (ii) any and all implied warranties, including implied war ranties of ftness for particular purpose, non-infringement and merchantability . for your convenience, copies of this legal disclaimer notice with german, spanish, japanese, traditional chinese and simplifed chinese bilingual versions are available at: web page: http://www.bourns.com/legal/disclaimers-terms-and-policies pdf: http://www.bourns.com/docs/legal/disclaimer.pdf c1753 05/17/18r
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