glass encapsulated bead thermistors ntc type br series type br11/14/16/25 small glass encapsulated bead thermistors on fne diameter alloy lead-wires. ? suitable for most low cost temperature measurement, control or compensation applications ? very fast thermal response times ? rugged glass encapsulation provides hermetic seal and better strain relief than small glass coated bead thermistors ? long term stability is better than small glass coated bead thermistors ? suitable for self-heated applications such as liquid level sensing or gas fow measurement ? recommended for all applications where the customer will perform further assembly operations ? normal operating/storage temperatures range from ? -112f (-80c) to: 221f (105c) for material system e0, 392f (200c) for material systems a1 through a4, 572f (300c) for material systems a5 through d17 ? unaffected by severe environmental exposures, including nuclear radiation ? intermittent operation to 1112f (600c) is permissible, however, stability will be degraded type b32/42/55 large glass encapsulated bead thermistors on fne diameter platinum alloy lead-wires. ? suitable for most low cost temperature measurement, control or compensation applications ? fast thermal response times ? rugged glass encapsulation provides hermetic seal and better strain relief than large glass coated bead thermistors ? long term stability is better than large glass coated bead thermistors ? suitable for self-heated applications such as liquid level sensing or gas fow measurement ? recommended for all applications where the customer will perform further assembly operations ? normal operating/storage temperatures range from ? -112f (-80c) to: 221f (105c) for material system e0, 392f (200c) for material systems a1 through a4, 572f (300c) for material systems a5 through d17 ? unaffected by severe environmental exposures, including nuclear radiation ? intermittent operation to 1112f (600c) is permissible, however, stability will be degraded a mphenol advanced sensors features
2 type br series specifications type br series dimensions type br11/14/1/23 thermal and lectrical properties the following lists the thermal and electrical properties for all small ruggedied thermistors all defnitions and test methods per body dimensions br11 ? ? ? ? ? ? ? ? ? ? ? ? lead-wires br11 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? code letter r vs t curve 25/125 ratio nominal resistance range at 77f (25c) br11 br14 br1 br23 0 50 a 1 118 1 to 15 thermal time constant br11 ? ? ? ? ? ? ? ?
3 type br series specifications dissipation constant br11 ? ? ? ? ? ? ? ? power rating (in air) br11 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? all large ruggedized thermistors. all defnitions and test body dimensions br32 ? ? ? ? ? ? ? ? ? lead-wires br32 ? ? ? ? ? ? ? ? ? ? ? ? thermal time constant br32 ? ? ? ? ? ?
aas-920-308b - 09/2014 wwwamphenol-sensorscom ? 2014 amphenol corporation. all rights reserved. specifcations ar e subject to change without notice. a mphenol advanced sensors dissipation constant br32 ? ? ? ? ? ? power rating (in air) br32 ? ? ? ? ? ? ? ? ? code letter r vs t curve 25/125 ratio nominal resistance range at 77f (25c) br32 br42 br55 0 50 - 30 to 51 ? ? ? ? ? ? ? ? ? ? ? *the zero-power resistance at 77f (25c), expressed in? , is identifed by a three digit code number. the frst two digits represent signifcant fgures, and the last digit specifes the number of zeros to follow. example: 10k ?= 103. the standard resistance values are from the 24-value series decade as specifed the code number to be ordered may be specifed as follows: code type br ruggedied ead structure code diameter 11 11 mils 14 14 mils 1 1 mils 23 23 mils 32 32 mils 42 42 mils 55 55 mils code lead configuration adacent leads with stu ends glass coated p pposite leads code material system code see tale a or tale b for code numer code power ero-power resistance as 77f (25c) (see note 2 for code numer) code tolerance* f 1 2 5 10 l 15 m 20 n 25 p 30 40 r 50 s non-standard (consult factory) br - - - - - typical model numer special tolerances are availale upon reuest consult factory for special resistance tolerances non- standard resistances and/or non-standard temperatures
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