308 constitution drive menlo park, ca 94025-1164 phone: 800-227-4856 www.circuitprotection.com polyswitch? ptc devices overcurrent protection device product: rtef120 document: scd25188 pcn: d04822 rev letter: obsolete (d) rev date: october 10, 2011 page no.: 1 of 1 specification status: released electrical rating voltage: 33v max current: 40a max insulating material: cured, flame retardant epoxy polymer meets ul94 v-0 requirements lead material: 24 awg tin plated copper clad steel marking: manufacturers mark and voltage lot identification part identification tf120 (can be on back) 33 table i. dimensions: a b c d e min max min max min max min max min max mm: -- 7.4 -- 12.2 4.3 5.8 7.6 -- -- 3.0 in*: -- (0.29) -- (0.48) (0.17) (0.23) (0.30) -- -- (0.12) *rounded off approximation table ii. performance ratings: i hold rated current* current ratings initial resistance values time to trip r 1 max 1 hr. post trip resistance standard trip tripped- state power dissipation amps at 20 ? c amps at 20 ? c ohms at 20 ? c seconds at 20 ? c, 6.0a seconds at 20 ? c watts at 20 ? c hold hold trip min max max max typ 1.2 1.2 2.3 0.074 0.120 3.5 0.180 0.78 * values specified were determined using pcbs w/ 0 .050 x 1oz cu traces agency recognitions: ul, csa, tuv reference documents: ps300 precedence: this specification takes precedence ove r documents referenced herein. effectivity: reference documents shall be the issue in effect on the date of invitation for bid. caution: operation beyond the rated voltage or curr ent may result in rupture, electrical arcing or fla me. materials information rohs compliant elv compliant pb-free ? 2005, 2011 tyco electronics corporation, a te connectivity ltd. company. all rights reserved.
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