TG1-8 MICROSEMI | Alldatasheet

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SENSISTORS* mae Positive - Temperature - Coefficient RTH42 Silicon Thermistors RTH22 TM1/4 © Qualified to MIL-T-23648A The TG1/8 thermistor is encapsulated in © TG1/8 - Similar to RTH42 a glass, hermetically sealed package. The (MIL-T-23648A/19) TM1/8 and TM1/4 thermistors are encap- (MIL-T-23648A/9) hot solder-dipped leads and are used in © Large Positive Temperature Coefficient temperature sensing and compensation = 0.7%/°C circuits. They meet or exceed all of the @ Wide Resistance Value Ranges Availahle raquiraments of MIL-T-23648A, ‘in 5% or 10% Tolerances ‘ABSOLUTE MAXIMUM RATINGS 161/83 TM1/8 TM1/4 RTH42 RTH22 Power Dissipation at (or below) Power Dissipation at (or below) TG1/8| | 1G . RTH42 } io I A ——,-—- INCHES ‘MILLIMETERS rpc a: L [of oss sor] 24132 254} if

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ELECTRICAL AND THERMAL CHARACTERISTICS TG1/8 =TM1/8 TM1/4 RTH42 = RTH22 . Zero Power Kesistance Mato (HIS¢C/ M1250) «es ccceesesseseeeseeseeeeeeees UBD # 19% oo seee NOMINAL RESISTANCE AT VARIOUS TEMPERATURES Standard Zero - a Power Resis- Type No. Resistance (Q) of Sensistor® at Temperature other than 25°C Ea tance Value (Q) at 25°C Free-Air Temperature _ ass | -15%¢ [10 ‘| reiva| rtH42 [ti/a|atHee [twi/a[ ois | 79 | 863 | 16 | 138 | i545 | 175 [12 | te1/a| RTH42 | TM1/8 | RTH22 9.48 |10.356| 1392 | 16.2 | 18.54 al “is __| te1/a| eta | tmive | RtHe2 | TM1/4 15.534 twa | 1353 zosz | 297 | 3399 | 385 33 | terval rta2 | twize | etH22 | twa praia | wR | adam RTHa2 | T1/8 | RTH22 | TM/4 63.45 | 72.615 | 82.25 [0 ~~ f reive | wrviaa [rave | wreae [Twa so | 7s | 7725 | 07s 56 Te1/8| RtHa2 | TM1/8 | RTH22 Hee ee] 44.26 | 48.328 68 TG1/8| RTHa2 | TM1/8 | RTH22 | TM1/4 5372 | 58.684| 7888 | 918 | 10506 | 119 tuivs | 582 180 180 RTHA2 | TM1/8 11.5 | 127.05 270 | Fis fea me Twi/8 | RTH22 135.9 | 150.84 220 | tei/e| RtHa2 | Tia | RTHe2 “166.1 [184.36 | 259.6 | 308 | 367.06 | 4092 qui/4 | 1512 | 20385 | 22626 | 3186 | 378 390 TG1/8| RTH42 [TM1/8 | RTH22 | TM1/4 326.82/ 4602 | 546 | 63297 | 7254 twas | 2632

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590 PLEASANT STREET « WATERTOWN, MA02172

TEL. (617) 926-0404 + FAX (617) 9241235, 95 PRINTED NUSA

NOMINAL RESISTANCE AT VARIOUS TEMPERATURES RTH42 RTH22 Standard Zero Lype No. Resistance (11) of Sensistor® at Temperature other than 25°C Power Resis- tance Value (a) at 25°C Free-air 1200 | Te1/8 | RTHA2 w/a | 660 | a8 | 1,002 | 1,440 2,304 500 [towel arnaz] — | — | rmiza | 7725 | 1095 [1,237.5] i845 [2175 | 2.608 | 2,940 [=| — [iuize| wine rina [ oas [ito [i.zse5| 1800 [2190 [eae | ze | 1,800 | Teive | rTH42 | TMI/8 | RTH22 | Tw1/4 | 927 | 1.314 2214 | 2.610 | 3,006 2,200 arHa2 | TI/8 1133 2,706 | 3190 | 3674 | 4312 | [2700 [76178 atwz2 | Tai7a ]i.3905| 197i [2275 | 321 | 3ais | 4509 | 5202 | 3,300 [TG1/8 TM1/8 | RTH22 | TM1/4 |1,699.5| 2,409 6,468 3,900 |T61/8 [ twive | RrH22 | Twa [20085] 2847 [32175] 4797 | 5.655 | 6513 | 7.644 4700_|rcia | —[rwive | ervzo| Twi/4 [2.2205] 34a1 [30775] 5,761 | 6ais | 7aa9 | 9212 | | s000|rgive| — | Twave [RtH22 [5600 |Ta1/8 TM1/8 | RTH22| TM1/4 | 2,884 | 4,088 | 4,620 | 6.888 | 8,120 | 9,352 6,800 — toie| — | twive | rtH22| tM1/4 | 4.182 | 5,986 | 6,765 | 9.758 13,202 | 15,006 8,200 _ | = [= _Jitmire [ rtH22 | tm174 | 4,223 | 5,986 | 6,765 | 10,086 | 11,890 | 13,694 | 16,072 10000 | 1S2/8 [= [tmi7e [RTH22 | TMi74 [5,100 | 7.300 14,000 |" 16,100 27,000 | = | = [tive | 12,987 | 19,224 | 21,978 | 32,670 | 38,610 33,000 [= [1178 | 15,873 | 23,496 | 26,862 | 39,930 62,700 DEVICE TOLERANCE The actual resistance of the thermistor at T/C may vary from the calculated value by an amount not exceeding the tolerances tabulated below. Temperature =15 oe 25 _ 35% +10% 50 27% #12% 75 re en es, | 100 125 [stb 20% SHU PLEASAN! SIMEEL « Wares Uwe, MA UZI/Z TEL, (617) 926-0404 « FAX (617) 924-1235, 96 PRINTED NUSA

< lt £ 500 —_ A [RATING FOR TM1/8 2 | fonteve } 200 —_ z 3 200 | eeconmenoeo ? 125- Lec FOR TMB AND ral | o a TYPICAL CHARACTERISTICS WITH POWER APPLIED for the condition of heat removal by free-air convection only. The heat sink curve is for the maximum cooling rate condition of a heat sink strap, with leads attached to an infinite heat sink. Actual conditions encountered will be between these two extremes. After selecting an applicable multiplying factor from figure 2 or 3, multiply this by the 25°C zero power resistance. This product is then ‘Temperatures table. 2 Percent Resistance Change vs 3. Percent Resistance Change vs Power Dissipation Power Dissipation ‘TM1/8 / RTH22 / TM1/4 TM1/8 / RTH42 / TM1/4 [| eae i i | : Hi CHE 3 var. 27 PALA | g [Yon | a ara 2 1A (| a VY Te s25rCt g Z\\ 3 LG \\_" J4it—H 7a ee vA ETT WAL 1 ‘TM1/8272K ™ 1/8 272 K STYLE WATTAGE RESISTANCE VALUE CODE TOLERANCE ™ ve 270 = 272 J=5% TG V4 271 = 2709 K= 10% RTH42 ES. 272 = 2,700Q RTH22 ES 273 = 27,0000 re TEL. (G17) 926-0404 + FAX (617) 924-1235 97 PRINTED INUSA,