www.vishay.com for technical questions, contact: thermistor1@vishay.com document number: 33003 104 revision: 12-nov-09 m, c, t vishay dale ntc thermistors, radial leaded and coated features ? small size - conformally coated ? wide resistance range ? available in 11 different r-t curves ? available in point matched and curve tracking precision down to 0.2 c description models m, c, and t are conformally coated, leaded thermist ors for standard pc board mounting or assembly in probes. the coating is baked-on phenolic for dur ability and long-term stability. models m and c have tinned solid copper leads. model t has solid nicke l wires with teflon ? insulation to provide isolation when assembled in metal probes or housings. dimensions in inches (millimeters) product type wire gauge/diameter type m awg 30: 0.0100 (0.254) type c awg 28: 0.0126 (0.320) type t awg 30: 0.0100 (0.254) tinned copper wire teflon insulated nickel wire body dia. max. 0.25 (6.35) nom. 1.5 (36.1) min. clean lead length body dia. max. 3 0.25 (76.2 6.4) 01 2 c00 f s 1 global part number information global part numbering: 01c2001fp for point matched thermistors global part numbering: 01c2001spc3 for curve tracking thermistors note (1) see follo w ing pages for tolerance explanations and details. 0 12 c00 f f 1 cur v e 01 02 03 04 07 08 09 12 13 14 17 global model c m t resista n ce v alue 2001 = 2k poi n t match tolera n ce f = 1 % j = 5 % k = 10 % packagi n g f = lead (p b )-free, bu lk p = tin/lead, bu lk c3 cur v e 01 02 04 08 09 17 global model c m t resista n ce v alue 2001 = 2k packagi n g f = lead (p b )-free, bu lk p = tin/lead, bu lk cur v e track tolera n ce (1) a2 b2 c2 a3 b3 c3 a4 b4 a5 b5 c5 a8 b8 c8 characteristics s
document number: 33003 for technical questions, contact: thermistor1@vishay.com www.vishay.com revision: 12-nov-09 105 m, c, t ntc thermistors, r adial leaded and coated vishay dale selection guide for type m, c, and t thermistors r 25 ( ) curve number 1234789121417 27 ? maximum body diameter 33 ?? 50 ??? ? 0.125 [3.2] 56 ??? 68 ? ??? ?? 0.110 [2.8] 82 ?? ??? 100 ?? ??? ??? 0.095 [2.4] 120 ?? ??? 150 ??? ??? 180 ??? ??? 220 ??? ??? 270 ??? 330 ? ??? 390 ?? ??? dissipation constant 470 ?? ??? 500 ?? ??? 2 mw/c to 3 mw/c 560 ?? ??? 680 ??? 820 ??? 1k ??? thermal time constant 1.2k ??? 1.5k ??? 6 s to 14 s 1.8k ? ??? 2.2k ? ??? 2.7k ?? ??? 3.3k ?? ??? 3.9k ??? 4.7k ??? notes 5k ??? 5.6k ??? 1. intermediate resistance values between the standard value series are available. size would be the same as the color grouping. 6.8k ??? ? 8.2k ??? ? ? 10k ??? ? ?? ?? 12k ??? ? ?? ?? 15k ??? ?? ??? ??? 2. other body diameter available. bead diameter increases as res. decreases. (consult factory) 18k ??? ?? ??? ??? 22k ?? ??? ??? 27k ?? ? ? ??? ??? 33k ??? ? ?? ??? ??? 3. leaded series of thermistors includes additional styles: (consult factory) 39k ??? ?? ?? ??? ??? 47k ??? ?? ??? ??? ??? 50k ??? ?? ??? ??? ??? type b: 26awg lead, 0.0159 [0.40] type f: 32awg lead, 0.008 [0.20] type e: 24awg lead, 0.020 [0.51] type d: 22awg lead, 0.025 [0.64] type g: 20awg lead, 0.032 [0.81] type h: 18awg lead, 0.040 [1.02] 56k ??? ??? ??? ??? 68k ??? ??? ??? 82k ??? ??? ??? 100k ??? ??? ??? 120k ??? ??? 150k ??? ??? 180k ??? ??? 220k ??? ??? 270k ??? 330k ? 390k ?? 470k ?? 500k ??? 560k ??? 680k ??? 820k ??? 1m ???
www.vishay.com for technical questions, contact: thermistor1@vishay.com document number: 33003 106 revision: 12-nov-09 m, c, t vishay dale ntc thermistors, r adial leaded and coated tolerances available for type m, c and t thermistors description of thermistor tolerances the many applications of thermistors have mandated the need for two basic tolera nce schemes for these products - curve tracking and point match thermistors. an example of the resist ance tolerance at various temperatures for the two different tolerancing methods is described in the following graph: curve tracking tolerance thermistors are calibrated at the high te mperature of the curve track range and then final tested at the low temperature of the curve track range. this ensures that the thermistor will meet the specified temp erature accuracy at every temperature withi n the desired temperature range. several tem perature ranges are available and the accu racy of the thermistor may be 0.2 c, 0.5 c, and 1.0 c. the curve tracking temperature ranges and their code designators are shown in figure 1 and table 1. to specify, add the appropriate suffix fr om the following table to the part number. example: 01m1002sfb3 = curve 1, 10 k at + 25 c, curve tracking to 0.5 c from 0 c to + 70 c standard electrical specificatio ns for curve tracking thermistors temp. range 0 c to + 70 c - 20 c to + 50 c 0 c to + 100 c 25 c to + 90 c 0 c to + 50 c tolerance 1 c 0.5 c 0.2 c 1 c 0.5 c 0.2 c 1 c 0.5 c 0.2 c 1 c 0.5 c 0.2 c 1 c 0.5 c 0.2 c pa rt n o. suffix - a3 - b3 - c3 - a2 - b2 - c2 - a4 - b4 - c4 - a5 - b5 - c5 - a 8 - b 8 - c 8 curve 01 x x x x x xxxn/ax x xxx x 02 x x x x x xxxn/ax x xxx x 04x x x x x xxxn/ax x xxx x 08x x x x x xxxn/ax x xxx x 09x x x x x xxxn/ax x xxx x tolerance ( %) temperature (c) 5 % point match curve 1 c curve track curve 25 c 10 9 8 7 6 5 4 3 2 1 0 - 50 - 40 - 30 - 20 - 10 0 10 20 30 40 50 60 70 8 0 90 100 110 120 130 140 150 a5 a4 a2 a 8 a3
document number: 33003 for technical questions, contact: thermistor1@vishay.com www.vishay.com revision: 12-nov-09 107 m, c, t ntc thermistors, r adial leaded and coated vishay dale point match tolerance the standard leaded thermistors are calibrated and tested at 25 c to a tolerance of 5 % or 10 % ; however, tighter tolerance, point matched thermistors are readily available as are special point match temperatures to fit your application. since these thermistors have only one controlled point of refere nce (the point match temperature), the resistance at other temperatures is given by the ?resistance vs. temperature conver sion tables? for the appropriate material curve. the resistance value at any temperature is the ratio factor times the resistance at 25 c. the resistance vs. temperature conversion tables ca n be found at: www.vishay.com/doc?33004 and www.vishay.com/doc?33011 . example: 09m1002jf, + 70 c resistance = (resistanc e factor for curve 9 at 70 c is 0.1990) x (10 000 resistance at 25 c) = 1990 . the tolerance of the resistance at any temperature is described by figure 2. figure 2 point match tolerances vs. temperature point match resistance tolerances at temperatures other than 25 oc are not the same as the calibration temperature. this difference is presented in figure 2. the tolerance at any given temperature is the point match tolerance + the mt % (manufacturing tolerance). the mt % may be obtained from the r vs. t conversion tables (see www.vishay.com/doc?33004 ) and is added to the point match temperature, i.e., 1 % tol. at 25 oc + 2.6 % at - 30 oc for curve 1 equals a total tolerance of 3.6 % at - 30 oc. computer aids for thermistor selection a spreadsheet is available for the vishay thermistor materials that calculates beta, steinhart- hart equation constants a, b, an d c, the resistance at any temperature bas ed upon the steinhart constants or beta, th e temperature equivalent of the resistance reading, and resistance temperature coefficients. this spread sheet will also calculate the total resistance tole rance of any point matched thermistor for temperatures in 10 oc increments, and the resistance tolerance at any temperature within the calibrated rang e of curve tracking thermistors. please contact factory if interested in this excel? spreadsheet at thermistor1@vishay.com . 25 c nominal r vs. t max. r vs. t min. r vs. t pivot point (calibration temperature) temperature resistance
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