polyswi tch? ptc devices overcurrent protection device product: AHRF450 document: scd25183 rev letter: e rev date: july 26,2016 page no.: 1 of 2 ? 2016 littelfuse,inc littelfuse.com specifications are subject to change without notice. revised july 26, 2016 specification status: r eleased electrical rating voltage: 16v dc max insulating material: cured, flame retardant epoxy polymer lead material: 20 awg tin plated copper ( 0.8 mm [0.032] nom. diameter) part marking: table i. installation envelope dimensions: a b c d e f g min max min max min max min max min max typ min max mm: -- 10.4 -- 15.6 4.3 5.8 7.6 -- -- 3.0 1.2 -- 3.94 in*: -- (0.41) -- (0.61) (0.17) (0.23) (0.30) -- -- (0.12) (0.05) -- (0.16 ) *rounded off approximation table ii. performance ratings: reference documents: ps400, ps300 (reference for r 1 max ) precedence: this specification takes precedence over documents referenced herein. effectivity: reference documents shall be the issue in effect o n the date of invitation for bid. caution: operation beyond the rated voltage or current may result in rupture, electrical arcing or flame. materials information rohs compliant elv compliant pb - free halogen fr ee* * halogen free refers to: br 900ppm, cl 900ppm, br+cl 1500ppm. current ratings time to trip resistance r a max tripped - state power dissipation amps at 25c seconds at 25c, 22.5 a ohms at 25c ohms at 25c watts at 25c hold trip max min max typ 4.5 8.7 4.0 0.017 .036 0.054 3.6 hf manufacturers mark lot identification and part identification h4.5
polyswi tch? ptc devices overcurrent protection device product: AHRF450 document: scd25183 rev letter: e rev date: july 26,2016 page no.: 2 of 2 ? 2016 littelfuse,inc littelfuse.com specifications are subject to change without notice. revised july 26, 2016 table iii. automotive specific stress tests and test conditions: electrical stress tests test conditions (see note 2) esd voltage withstand (see note 1) 25kv short circuit fault current durability 25 cycles, 16v, 200a fault current durability 350 cycles, 16v/100a end - of - life mode verification 1750 cycles, 16v/100a jump start endurance (see note 1) 3 cycles, 26v, 1 minute duration load dump endurance (see note 1) 10 cycles, 86.5v note 1: the polysw itch devices are tested in series with a load resistance and the voltages specified in the test conditions are shared between the polyswitch device and the load res istance as specified in ps400. note 2: please refer to appendix a of ps400 for the detaile d test procedures information furnished is believed to be accurate and reliable. however, users should independently evaluate the suitability o f and test each product selected for their own applications. littelfuse products are not d esigned for, and shall not be used for, any purpose (including, without limitation, military, aerospace, medical, lifesaving, life - sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application i n which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in ap plicable littelfuse product documentation. warranties granted by littelfuse shall be deem ed void for products used for any purpose not expressly set forth in applicable littelfuse documentation. littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by littelfuse as set for th in applicable littelfuse documentation. the sale and use of littelfuse products is subject to littelfuse terms and conditions of sale, unless otherwis e agreed by littelfuse.
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