O1/04 93 09:00 THERMOMETRICS 002-003 NTC Thermistors INDUSTRIAL/CONSUMER BOWTHORPE THERMISTORS TYPE G GL Description Type G thermistors incorporate a directly heated bead of semicanductor \SI- 10 material in a solid glass pallet, connection being by means of twa eunife wires. These wires are normally tinned but thermistars G55, G26 and G16 ISr-\. which are intended to operate at temperaturas up te 300C have untinned cunife wires suitable for welding or brazing. The type G thermistor is avatlable in three styles of glass pellet, the largest siza is referred to as Standard (G - C), the smaller size as Miniature (G - D) and the Prabe as GL - eg a miniature G13 is coded G13D. These thermistors ara suitable for general use in the field of temperature measurement, control or compensation, flow measurement and similar applications. Data . Temperature Maasurament & Control B value tolerance .ocsecseccce eee cence cc prerrevererusraweseseanupe cn senesancansssnessen 25% Te OL evecnneneverentnensnneesaneseaesesasensedcoeceanceeseacenesscprnesrenrereaeananansess 21s B= Dace ceee cece seoenee ee cover reeerrensvaeaneauen saaeensassaandsuanessastenescoccrseer eres 19s GG saccecnsestens snscceeqeeyrerere eteareeesereees LGW EC GF ~ Doan ececeveereenroncoveusunsneusonecenaessaunassncncscenecencen coasacenecses ie ce - Fluid Level Detection CBee ue. eeerececnvearerave raven cecdesesastasassaes basset etdsctnwseenssnnenereerecce amW? Flow Measurement & Control Low Resistance Types , _ TA MOx oo. encccrceerereenrecepeeesurpaeven send tae eeadGacesnenasness seta sendsdacnssececcenecepee ays 125C Darate linearly to zero at 126C Outline Medium Resistance Types oD | T AMax cecccesserenssensssonsseatnenacsesscan - 155C P max At 20C G - Cone ceeseseenscosereneneesnevs resseuseesassenseneeennansensna 230mW en De eeervorveucesuonsnnnas aN 25 sesesaseusnese MIN G - Derate linearly ta 55mW at 155C a] G - D Derate linearly to 50mW ar 155C 25 GL - Derate linearly to S3mW at 155C a ee High Resistance Types NOM T Amar cis cesssesseasseeaase - seceureesseerrensesereusveraaseasasses 300C Lead Body TB mak sec csessecenenesteserssnasanansnstessessasenns 300C Dis. Dia. Average P max At 20C G~ Cons ccessersnersenssseessoreevansssssnuensansaessnsnseessnnacts 360mW Code mm {max} Weight GF ~D esessesreneerserrsseescnevsensesttensesetsiestnscsasseceeen 310mW cererreeneseseeerens Ge 04 33 O15 Le eectesessseecsas 340mW G-0D 0.35 25 O.t4 GL= 0.35 2.5 Derate linearly to zerg at 300C D10~3 RECEINED FROM @4.081.1993 83:84 P. bo 9300 (09:01 U1l-U4 THERNOMETRICS E mari free - air at 20 C Code Fiza Ales GC only (V) Rin . Geses _. Q Q 2 K Low rasistance types G22 C, DandL 260 172 1.9 19 2750 GS$2 500 425 2.9 40 2900 G13 1k 840 3.9 70 3000 G23 2k 1,65k 5.3 113 3125 GS3 5k 415k 8.2 250 : 3400 Mediurn resistance types Gi4 10k 82k 11 110 3600 Ge4 20k 16.2k 16 160 3806 G54 50k 40k 24 320 4075 G15 100k 79K 34 520 4275 G25 200k 156k 46 810 4400 High resistanca types Fico Broo-200 G55 500k 15k 62 180 4700 Gti6 1M 30k 87 330 4850 G26 2M 60k 120 560 5000 ene B vt o 100 74 s 40 40 20 a 2 +69 0 40 230 920 tO 0 1d In JdAOsS 70 0T5Q00 SG ws TEMPERATURE PO, OPERATING: Thermistors are designed to be intrinsically safe components pravided they are operated within the rated voitages or currents and inside the recommended tamperature range. STORAGE ; The normal care requirad for electronic components should be exer- cised. DISPOSAL : No special hazards are involved in disposal. Incineration of thermis- tors is not recommended due to the emission of toxic fumes fram epoxy coated devices or the shattering of glass and/or ceramic with possible hazard from hot jagged material. Voltage wv. Current in Free Air at Tose = 22'S 4090 VOLTAGE iv) oO a a T 4 8 a 3 G 1 rt 24 4 42 WY 6 300 CURRENT (mA) PHYSICAL FORM : The wire ends should net be bent nearer than 3mm to the glass body of the thermistor PRODUCT SAFETY NOTES : Although these cavices are glass encapsulated no insulation proper- ties are implied. Some of the tharmistors in this range, when operated at or near maximum rated dissipation in a self-heat mode, may require applied voltages capable of causing dangerous electric shock. FLAMMABLE FLUIDS : These devices attain high surface temperatures when used as liquid sensors. This precludes their direct use in flammable fluids; please contact the Technical Sales Department for further information. Performance figures and data quoted in this docu- mentare typical and must be speciiically contirmed in writing by BOWTHORPE THERMISTORS be- fore they become applicable to any particular order or contract. The company reserves the fight to make alteratons or amendments te the detailed specificadon ar its diserenon. The publicazon of May 1989 D10-3 BOWTHORPE THERMISTORS CROWN INDUSTRIAL ESTATE PRIORSWOOD ROAD TAUNTON SOMERSET TA2 8QY information in tus document does not imply free- dom from patent or other protective nghts of Bowthorpe Thermisiers or omers. @ BOWTHORPE COMPONENTS LTD. TELEPHONE 0823 335200 TELEX 46748 FAX 0823 332637 fat mi 1395 7 ao. As 003-9 LA