features smallest body size, low current type overtemperature and overcurrent protection for lithium polymer and prismatic cells controls abnormal, excessive current instantaneously wide range of temperature options applications battery cell protection for: notebook pcs tablet pcs smart phones mobile phones komatsulite ? nr series c-type breaker ratings *rohs compliant & **halogen free agency recognition description ul, cul file number: e215638 tuv file number: r50281578 product dimensions product structure 4.8 0.1 (.189 .004) 3.2 0.1 (.126 .004) 3.2 0.1 (.126 .004) 2.0 0.1 (.079 .004) 2.0 0.1 (.079 .004) 2.8 0.1 (.110 .004) 0.89 0.05 (.035 .002) 0.1 0.01 (.004 .0004) dimensions: mm (inches) speci cation model nr72cb0 nr77cb0 NR82CB0 nr85cb0 trip temperature 72 ? ?5 ? 77 ? ?5 ? 82 ? ?5 ? 85 ? ?5 ? reset temperature 40 ? min. contact rating dc12v / 12 a, 6000 cycles maximum breaking current dc5v / 30 a, 100 cycles maximum voltage dc28v / 12 a, 100 cycles minimum holding voltage 2 v @ 25 ? for 1 minute maximum leakage current 150 ma max. @ 25 ? resistance 15 milliohms max. how to order nr 77 c b 0 series designator trip temperature (? ?) ?72 ?82 ?77 ?85 arm material c = cu alloy low current type terminal type (with/without projection & terminal length) manufacturer s internal code arm terminal cover plate contact cover arm base terminal base available with and without projections. projection bimetal disc ptc projection * 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) con tent is 900 ppm or less; and (c) the total bromine (br) and chlorine (cl) content is 1500 ppm or less. speci? cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device perfor mance may vary over time. users should verify actual device performance in their speci? c applications. 1215c nr77cb0 67
speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device perfor mance may vary over time. users should verify actual device performance in their speci c applications. typical performance operation mf-nsmf series - ptc resettable fuses komatsulite? nr series c-type breaker the above curves were derived from placing test samples in an oven at 25 , 40 , 60 and 70, increasing current ? ow through the sample at a rate of 0.1 a/minute and recording the current value when the sample trips. normal circuit circuit after opening current excessive current and/or heat very low current current vs. temperature curves ambient temperature (c) current (a) 9 10 20 30 40 50 70 60 80 8 7 6 5 4 3 2 1 0 nr72cb0 y (low 67 c average
nr77cb0 y (low 72 c average
NR82CB0 y (low 77 c average
nr85cb0 y (low 80 c average
mf-nsmf series - ptc resettable fuses komatsulite? nr series c-type breaker speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device perfor mance may vary over time. users should verify actual device performance in their speci c applications. typical part marking wiring recommendations this is not a surface mount device for re ow soldering. therefore, ni tab wiring should be accomplished by either resistance o r laser welding. solder connections should be avoided. japan: tel: +81-6 6319 2281 ?fax: +81-6 6319 2284 asia-paci c: tel: +886-2 2562-4117 ?fax: +886-2 2562-4116 emea: tel: +36 88 520 390 ?fax: +36 88 520 211 the americas: tel: +1-951 781-5500 ?fax: +1-951 781-5700 www.bourns.com/komatsulite 1253a ** nr77cb0 date code: month (1~9, x, y, z) date year machine no. roman numeral ( i , ii , iii , etc .) = okayama factory arabic numeral ( 1, 2, 3, etc. ) = shiga factory manufacturer? trademark direction mark (alphanumeric character) terminal type manufacturer? internal code arm material (c = cu alloy) trip temperature - ? (72, 77, 82, 85) series designator standard packaging speci cations plastic bag.................................................................................................................... ...................................................1,000 pcs. ( xed) inner box ..................................................................................................................... ....................................................5,000 pcs. ( xed) outer box ..................................................................................................................... ...............50,000 pcs. max. (up to 10 inner boxes)
speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device perfor mance may vary over time. users should verify actual device performance in their speci c applications. caution when using breaker before using the breaker, please fully read the design and handling cautions stated below so that there will be no breaker performance deterioration and/or damage to the breaker body or terminal. design cautions 1. use within the electrical ratings speci ed in this data sheet. if used over the rating of voltage or current, on-off life m ight be impacted and contact may be deteriorated due to breaker arm damage. 2. if used over the electrical rating, the circuit may not open safely. please test your device for any abnormalities and con rm that the breaker will open the circuit safely in your device. 3. mount the breaker on your device where heat is the highest in order to transfer it effectively to the breaker. 4. after the breaker is mounted, af x it so that the breaker body and terminals will not move. if not af xed, breaker resista nce could increase or contact open due to stress during handling or vibration/shock during transportation. 5. mount the breaker body and terminals in a straight and at direction. if the body and terminals are mounted in a twisted co ndition, breaker resistance could increase or create body damage. 6. if breaker is to be resin-molded, test and evaluate to determine whether the breaker can be used effectively. 7. the breaker cannot be used as a repetitive on-off thermostat. 8. the breaker is not washable. do not wash. 9. the breaker is not designed nor guaranteed for ow, re ow or hand-soldering applications. if such application is required , test and evaluate in your speci c application to con rm that the breaker can be used. 10. when mounting and after mounting the breaker, do not apply supersonic vibration. vibration and heat may cause the breaker r esistance to increase or may cause body damage. if you apply supersonic vibration after mounting the breaker, test and evaluate in your speci c application to con rm that the breaker can be used. 11. do not use the breaker in the following abnormal environments: a) water, oil, chemicals or organic solutions b) direct sunlight, outdoor exposure, dust c) dew condensation, allowing the breaker to get wet d) salt breeze, chlorine, hydrogen sul de, ammonium, sul de-oxidation, hydrogen chloride, and anywhere there is a possibilit y of generating corrosive gas such as ulfurous acid gas e) strong static electric charge or electromagnetic wave 12. thie breaker is not designed or tested for, and should not be used in aerospace, airplane, nuclear, military, life-sustaini ng medical and other related equipment. mf-nsmf series - ptc resettable fuses komatsulite? nr series c-type breaker
rev. 08/15 speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device perfor mance may vary over time. users should verify actual device performance in their speci c applications. caution when using breaker (continued) handling cautions 1. since the breaker body is composed of plastic parts, do not clamp or dent with tools as this could cause a resistance increa se or body damage. 2. breaker terminals are thin copper-alloy with right angle edges. handle carefully to avoid injury to ngers. handling while wearing nger cots and tweezers is recommended. 3. when welding breaker terminals or mounting the breaker on a cell or pcm board, be careful to avoid placing excessive stress on the breaker body and terminals. excessive stress may cause a resistance increase or body damage. please refer to the following cau tions: a) do not apply more than 10 n moment to the breaker body (refer to figure 1) b) do not apply more than 1.5 cn-m twist torque to the breaker body (refer to figure 2) c) do not apply more than 20 n bending force to the breaker body (refer to figure 3) d) do not apply more than 0.6 cn-m twist torque to the breaker terminals (refer to figure 4) e) do not apply more than 2 n force to the breaker terminals (refer to figure 5) f) do not bend terminals more than 45 ?at root (refer to figure 6) g) do not twist terminals more than 20 ?with the breaker body af xed. 4. in breaker body welding, normally there is direct welding (figure 7) and series welding (figure 8). in either case, use a su itable jig so that there will be no stress as stated above. 5. pull-and-detach strength of the terminal welding should be to your own speci cation. if the welding result is controlled by resistance, measurement should be made at close point to the breaker body by ?-point clip method?using a milliohm meter to ensure accura cy (refer to figure 9). 6. avoid putting stress as shown above in 3-a) to 3-g) when the jig is used for welding/additional processing. rod a rod b rod a figure 1 figure 2 figure 9 figure 3 figure 4 figure 5 figure 6 figure 7 figure 8 rod b 45 45 45 45 milliohm meter due to possible updates to safety standards and other reasons, there may be changes in speci cations for this data sheet without prior noti cation. therefore, before design-in for your application, please contact us for the most up-to-date speci cations. mf-nsmf series - ptc resettable fuses komatsulite? nr series c-type breaker
|
