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 thermistors for standard PC board mounting or assembly in probes. The coating is baked-on phenolic for durability and long-term stability. Models M and C have tinned solid copper leads. Model T has solid nickel wires with Teflon® insulation to provide isolation when assembled in metal probes or housings. DIMENSIONS in inches (millimeters) 0.25 (6.35) NOM. TEFLON INSULATED NICKEL WIRE TINNED COPPER WIRE BODY DIA. MAX. BODY DIA. MAX. 1.5 (36.1) MIN. CLEAN LEAD LENGTH 3 ± 0.25 (76.2 ± 6.4) 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) GLOBAL PART NUMBER INFORMATION Global Part Numbering: 01C2001FP for POINT MATCHED THERMISTORS 0 CURVE 01 02 03 04 07 08 09 12 13 14 17 1 C 2 0 GLOBAL MODEL C M T 0 1 F F RESISTANCE VALUE 2001 = 2K POINT MATCH TOLERANCE F=±1% J=±5% K = ± 10 % PACKAGING F = Lead (Pb)-free, bulk P = Tin/Lead, bulk Global Part Numbering: 01C2001SPC3 for CURVE TRACKING THERMISTORS 0 1 C 2 0 0 CURVE GLOBAL MODEL RESISTANCE VALUE 01 C 2001 = 2K 02 M 04 T 08 09 17 1 S F C CHARACTERISTICS S 3 PACKAGING F = Lead (Pb)-free, bulk P = Tin/Lead, bulk Note (1) See following pages for tolerance explanations and details. www.vishay.com 104 For technical questions, contact: [email protected] CURVE TRACK TOLERANCE (1) A2 B2 C2 A3 B3 C3 A4 B4 A5 B5 C5 A8 B8 C8 Document Number: 33003 Revision: 12-Nov-09 M, C, T NTC Thermistors, Radial Leaded and Coated Vishay Dale SELECTION GUIDE FOR TYPE M, C, AND T THERMISTORS R25 (Ω) 27 33 50 56 68 82 100 120 150 180 220 270 330 390 470 500 560 680 820 1K 1.2K 1.5K 1.8K 2.2K 2.7K 3.3K 3.9K 4.7K 5K 5.6K 6.8K 8.2K 10K 12K 15K 18K 22K 27K 33K 39K 47K 50K 56K 68K 82K 100K 120K 150K 180K 220K 270K 330K 390K 470K 500K 560K 680K 820K 1M 1 • • •• •• ••• ••• ••• ••• ••• ••• ••• ••• ••• ••• 2 • •• •• •• •• ••• ••• ••• ••• ••• ••• ••• ••• ••• Document Number: 33003 Revision: 12-Nov-09 3 CURVE NUMBER 7 8 4 9 12 14 17 • •• ••• ••• ••• ••• ••• ••• ••• ••• ••• • •• •• •• ••• ••• ••• ••• ••• ••• ••• ••• ••• MAXIMUM BODY DIAMETER • 0.125 [3.2] •• 0.110 [2.8] ••• 0.095 [2.4] DISSIPATION CONSTANT 2 mW/°C to 3 mW/°C THERMAL TIME CONSTANT 6 s to 14 s Notes • • •• •• •• •• ••• ••• ••• ••• ••• ••• ••• ••• • • •• •• •• ••• ••• ••• ••• ••• ••• ••• ••• ••• • •• •• ••• ••• ••• ••• ••• ••• ••• ••• ••• ••• • • •• •• ••• ••• ••• ••• ••• ••• ••• ••• • •• •• ••• ••• ••• ••• ••• ••• ••• ••• ••• 1. Intermediate resistance values between the standard value series are available. Size would be the same as the color grouping. 2. Other body diameter available. Bead diameter increases as Res. decreases. (consult factory) 3. Leaded series of thermistors includes additional styles: (consult factory) Type B: Type F: Type E: Type D: Type G: Type H: 26AWG Lead, 0.0159 [0.40] 32AWG Lead, 0.008 [0.20] 24AWG Lead, 0.020 [0.51] 22AWG Lead, 0.025 [0.64] 20AWG Lead, 0.032 [0.81] 18AWG Lead, 0.040 [1.02] • •• •• ••• ••• ••• ••• ••• For technical questions, contact: [email protected] www.vishay.com 105 M, C, T NTC Thermistors, Radial Leaded and Coated Vishay Dale 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 tolerance schemes for these products - curve tracking and point match thermistors. An example of the resistance tolerance at various temperatures for the two different tolerancing methods is described in the following graph: ± 5 % POINT MATCH CURVE 10 9 TOLERANCE (± %) 8 7 25 °C 6 ± 1 °C CURVE TRACK CURVE 5 4 A2 3 A8 A3 2 A4 1 150 130 140 120 110 100 90 80 70 60 50 30 20 10 0 - 10 - 20 - 30 - 40 - 50 40 A5 0 TEMPERATURE (°C) CURVE TRACKING TOLERANCE Thermistors are calibrated at the high temperature 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 temperature accuracy at every temperature within the desired temperature range. Several temperature ranges are available and the accuracy 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 from the following table to the part number. Example: 01M1002SFB3 = Curve 1, 10 kΩ at + 25 °C, curve tracking to ± 0.5 °C from 0 °C to + 70 °C STANDARD ELECTRICAL SPECIFICATIONS FOR CURVE TRACKING THERMISTORS TEMP. RANGE TOLERANCE CURVE PART NO. SUFFIX 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 ± 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 - A3 - B3 - C3 - A2 - B2 - C2 - A4 - B4 - C4 - A5 - B5 - C5 - A8 - B8 - C8 01 X X X X X X X X N/A X X X X X X 02 X X X X X X X X N/A X X X X X X 04 X X X X X X X X N/A X X X X X X 08 X X X X X X X X N/A X X X X X X 09 X X X X X X X X N/A X X X X X X www.vishay.com 106 For technical questions, contact: [email protected] Document Number: 33003 Revision: 12-Nov-09 M, C, T NTC Thermistors, Radial 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 reference (the point match temperature), the resistance at other temperatures is given by the “Resistance vs. Temperature Conversion 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 can be found at: www.vishay.com/doc?33004 and www.vishay.com/doc?33011. Example: 09M1002JF, + 70 °C resistance = (Resistance factor for curve 9 at 70 °C is 0.1990) x (10 000 Ω resistance at 25 °C) = 1990 Ω. 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. MAX. R vs. T RESISTANCE MIN. R vs. T The tolerance at any given temperature is the point match tolerance + the MT ± % (manufacturing tolerance). NOMINAL R vs. T PIVOT POINT (CALIBRATION TEMPERATURE) 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. 25 °C TEMPERATURE COMPUTER AIDS FOR THERMISTOR SELECTION A spreadsheet is available for the Vishay thermistor materials that calculates beta, Steinhart-Hart equation constants A, B, and C, the resistance at any temperature based upon the Steinhart constants or beta, the temperature equivalent of the resistance reading, and resistance temperature coefficients. This spread sheet will also calculate the total resistance tolerance of any point matched thermistor for temperatures in 10 ºC increments, and the resistance tolerance at any temperature within the calibrated range of curve tracking thermistors. Please contact factory if interested in this Excel™ spreadsheet at [email protected]. Document Number: 33003 Revision: 12-Nov-09 For technical questions, contact: [email protected] www.vishay.com 107 Legal Disclaimer Notice Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. 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It is the customer’s responsibility to validate that a particular product with the properties described in the product specification is suitable for use in a particular application. Parameters provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein. Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining applications or for any other application in which the failure of the Vishay product could result in personal injury or death. Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 11-Mar-11 www.vishay.com 1