thermometrics thermoprobes ntc miniature series descriptions ntc type p20, p25 and p30 ? the type p20, p25 and p30 miniature thermprobes consist of a small bead thermistor hermetically sealed in the tip of a shock-resistant solid glass rod. the miniature thermoprobes have improved stability over glass coated and ruggedized glass bead thermistors. ntc type p60, p65, p85 and p100 ? the type p60, p65, p85 and p100 thermoprobes consist of a large bead thermistor hermetically sealed in the tip of a shock resistant solid glass rod. they have excellent long-term stability. applications ntc type p20, p25 and p30 ? miniature bead-in-glass probes feature high reliability, ease of handling and very fast response time. the longer body length makes them particularly well-suited for applications where fast response and immersion in fluids are the major requirements. ntc type p60, p65, p85 and p100 ? thermoprobes are recommended for all low cost , general purpose applications involving temperature measurement and control, circuit temperature compensation, liquid level sensing or fluid flow sensing. they are ideally suited for applications, that require a reliable, low cost sensor. a mphenol advanced sensors
2 type p20/25/30 specifications ntc types p20/25/30 dimensions thermal and electrical properties (all def initions and test methods are per mil-prf-23648) body dimensions: thermistor type: p20 p25 p30 minimum diameter: .020 in (.51 mm) .025 in (.64 mm) 030 in (.76 mm) standard code aa .063 in (1.6 mm) body l code a .125 in (3.2 mm) .125 in (3.2 mm) .125 in (3.2 mm) lengths code b .250 in (6.3 mm)** .250 in (6.3 mm) .250 in (6.3 mm) lead-wires: nom. diameter: .0011 in (.03 mm) .002 in (.05 mm) .003 in (.08 mm) minimum lead length: .250 in (6.3 mm) .250 in (6.3 mm) .250 in (6.3 mm) lead material: platinum alloy platinum alloy platinum alloy material system: nominal nominal resistance resistance resistance code letter r-vs-t curve 25/125 ratio range @ 77f (25c) range @ 77f (25c) range @ 77f (25c) e 0 5.0 a 1 11.8 300 ? to 680 ? 300 ? to 680 ? 100 ? to 300 ? a 2 12.5 680 ? to 1.6 k? 680 ? to 1.6 k? 300 ? to 750 ? a 3 14.0 1.6 k? to 3.6 k? 1.6 k? to 3.6 k? 750 ? to 1.5 k? a 4 16.9 3.6 k? to 6.8 k? 3.6 k? to 6.8 k? 1.5 k? to 3.0 k? a 5 19.8 6.8 k? to 27 k? 6.8 k? to 27 k? .0 k? to 6.8 k? a 6 22.1 C C 6.8 k? to 13 k? a 7 22.7 27 k? to 75 k? 27 k? to 75 k? 13 k? to 18 k? b 8 29.4 75 k? to 130 k? 75 k? to 130 k? 18 k? to 51 k? b 9 30.8 130 k? to 240 k? 130 k? to 240 k? 51 k? to 82 k? b 10 32.3 240 k? to 360 k? 240 k? to 360 k? 82 k? to 150 k? b 11 35.7 360 k? to 820 k? 360 k? to 820 k? 150 k? to 330 k? b 12 38.1 820 k? to 1.3 m? 820 k? to 1.3 m? 330 k? to 680 k? b 13 45.0 1.3 m? to 3.3 m? 1.3 m? to 3.3 m? 680 k? to 1.5 m? b 14 48.1 3.3 m? to 6.8 m? 3.3 m? to 6.8 m? 1.5 m? to 3.0 m? b 15 56.5 6.8 m? to 10 m? 6.8 m? to 10 m? 3.0 m? to 6.2 m? d 16 75.6 6.2 m? to 10 m? d 16 81.0 thermal time constant: still air at 77f (25c): 1.6 sec 2.0 sec 3.0 sec plunge into water: 18 msec 23 msec 60 msec dissipation constant: still air at 77f (25c): .14 mw/c .16 mw/c .30 mw/c still water at 77f (25c): .70 mw/c .80 mw/c 1.50 mw/c power rating: (in air) maximum power rating: .020 watts .025 watts .035 watts 100% max. power to: 302 (150c) 302 (150c) 302 (150c) derated to 0% at: 572f (300c) 572f (300c) 572f (300c) resistance vs temperature characterstics: the nominal resistance range for the zero-power resistance at 77f (25c) is shown for each miniature bead-in-glass thermoprobe type and each available material system. each material system is denoted by an ordering code letter, a referenced curve number and the nominal 77f/257f (25c/125c) resistance ratio.
3 type 60/65/85/100 specifications all thermoprobes are aged for extended periods of time. as such, they exhibit excellent stability for all service tempera - tures at or below the aging temperature. thermoprobes that are manufactured with material system e are aged at 221f (105c); those manufactured with a material system having a 77f (25c)/257f (125c) ratio of 16.9 or less are aged at 392f (200c); and all other material systems are aged at 572f (300c). intermittent operation at temperatures up to 1112f (600c) is permissable, however, degraded stability will result when the aging temperature is exceeded. this appiles to the ntc type p20/25/30 also. ntc types 60/65/85/100 dimensions probe length code letter a b c d f h k m p r tolerance code length in (mm) 0.125 (3.17) 0.25 (6.35) 0.375 (9.52) 0.5 (12.7) 0.75 (19.05) 1 (24.4) 1.25 (3.75) 1.5 (38.1) 1.75 (44.45) 2 (50.8) probe length codes thermal and electrical properties (all def initions and test methods are per mil-prf-23648) body dimensions thermistor type: p60 p65 p85 p100 maximum diameter: .060 in (1.5 mm) .065 in (1.7 mm) .085 in (2.2 mm) .100 in (2.5 mm) standard length code b .250 in (6.3 mm) .250 in (6.3 mm) .250 in (6.3 mm) .250 in (6.3 mm) standard length code d .500 in (12.7 mm) .500 in (12.7 mm) .500 in (12.7 mm) .500 in (12.7 mm) length codes available a, c a, c a, c, f, h a, c, f, h (special order only) k, m, p, r lead-wires: nom. diameter: .008 in (.20 mm) .008 in (.20 mm) .012 in (.30 mm) .012 in (.30 mm) minimum lead length: .875 in (22 mm) .875 in (22 mm) .875 in (22 mm) .875 in (22 mm) lead material: tinned dumet tinned dumet tinned dumet tinned dumet material system: nominal resistance 25/125 ratio nominal resistance range @ 77f (25c) nominal resistance range @ 77f (25c) nominal resistance range @ 77f (25c) nominal resistance range @ 77f (25c) code letter r-vs-t curve e 0 5.0 30 to 51 ? 30 to 51 ? 30 to 51 ? 30 to 51 ? a 1 11.8 51 to 150 ? 51 to 150 ? 51 to 150 ? 51 to 150 ? a 2 12.5 150 to 360 ? 150 to 360 ? 150 to 360? 150 to 360 ? a 3 14.0 360 to 750 ? 360 to 750 ? 360 to 750 ? 360 to 750 ? a 4 16.9 750 to 1.5 k? 750 to 1.5 k? 750 to 1.5 k? 750 to 1.5 k? a 5 19.8 1.5 k to 3.6 k? 1.5 k to 3.6 k? 1.5 k to 3.6 k? 1.5 k to 3.6 k? a 6 22.1 3.6 k to 6.2 k? 3.6 k to 6.2 k? 3.6 k to 6.2 k? 3.6 k to 6.2 k? a 7 22.7 6.2 k to 9.1 k? 6.2 k to 9.1 k? 6.2 k to 9.1 k? 6.2 k to 9.1 k? b 8 29.4 9.1 k to 27 k? 9.1 k to 27 k? 9.1 k to 27 k? 9.1 k to 27 k? b 9 30.8 27k to 43 k? 27 k to 43 k? 27 k to 43 k? 27 k to 43 k? b 10 32.3 43 k to 75 k? 43 k to 75 k? 43 k to 75 k? 43 k to 75 k? b 11 35.7 75 k to 160 k? 75 k to 160 k? 75 k to 160 k? 75 k to 160 k? b 12 38.1 160 k to 360 k? 160 k to 360 k? 160 k to 360 k? 160 k to 360 k? b 13 45.0 360 k to 750 k? 360 k to 750 k? 360 k to 750 k? 360 k to 750 k? b 14 48.1 750 k to 1.5 m? 750 k to 1.5 m? 750 k to 1.5 m? 750 k to 1.5 m? b 15 56.5 1.5 m to 3.0 m? 1.5 m to 3.0 m? 1.5 m to 3.0 m? 1.5 m to 3.0 m? d 16 75.6 3.0 m to 8.2 m? 3.0 m to 8.2 m? 3.0 m to 8.2 m? 3.0 m to 8.2 m? d 16 81.0 8.2 m to 20 m? 8.2 m to 20 m? 8.2 m to 20 m? 8.2 m to 20 m? thermal time constant: still air at 77f (25c): 12 sec 13 sec 16 sec 22 sec plunge into water: 300 msec 320 msec 400 msec 600 msec dissipation constant: still air at 77f (25c): .60 mw/c .65 mw/c .85 mw/c 1.00 mw/c still water at 77f (25c): 3.00 mw/c 3.30 mw/c 4.00 mw/c 5.00 mw/c power rating: (in air) maximum power rating: .060 watts .065 watts .085 watts .100 watts 100% max power to: 392f (200c) 392f (200c) 392f (200c) 392(200c) derated to 0% at: 572f (300c) 572f (300c) 572f (300c) 572(300c) resistance vs temperature characterstics: the nominal resistance range for the zero-power resistance at 77f (25c) is shown for each miniature bead-in-glass thermoprobe type and each available material system. each material system is denoted by an ordering code letter, a referenced curve number and the nominal 77f/257f (25c/125c) resistance ratio.
ordering information the code number to be ordered may be specif ied as follows: p miniature bead-in-glass thermoprobe structure code maximum probe diameter 20 20 mil 25 25 mil 30 30 mil code probe length aa 0.063 in (1 mm) 0.015 in (0.381 mm) a 0.125 in (3 mm) 0.032 in (0.81 mm) b 0.25 in (6 mm) 0.05 in (1 mm) code material system code x see thermal and electrical properties table code zero-power 103 resistance at 77f (25c)** code toleranc code letter f 1% g 2% j 5% k 10% l 15% m 20% n 25% p 30% q 40% r 50% s non standard consult thermometrics p - ____ - ____ - ____ - ____ - ____ typical model number *special tolerances are available on request. consult thermometrics for special resistance toler - ances, non-standard resistances and/or non-standard temperatures. **the zero-power resistance 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: 10 k? = 103. the standard resistance values are from the 24-value series decade as specifed in military standards ms90178. 1.0/1.1/1.3/1.5/1.6/1.8/2.0/2.2/2.4/2.7/3.0 3.3/3.6/3.9/4.3/4.7/5.1/5.6/6.2/6.8/7.5/8.2/9.1 the code number to be ordered may be specif ied as follows: p miniature bead-in-glass thermoprobe structure code maximum probe diameter 60 60 mil 65 65 mil 85 80 mil 100 100 mil code probe length (see probe length codes table for restrictions) b 0.25 in (6 mm) 0.05 in (1 mm) d 0.5 in (12 mm) 0.063 in (1 mm) code material system code x see thermal and electrical properties table code zero-power 104 resistance at 77f (25c)** code toleranc code letter f 1% g 2% j 5% k 10% l 15% m 20% n 25% p 30% q 40% r 50% s non standard consult thermometrics p - ____ - ____ - ____ - ____ - ____ typical model number *special tolerances are available on request. consult thermometrics for special resistance toler - ances, non-standard resistances and/or non-standard temperatures. **the zero-power resistance 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: 100 k? = 104. the standard resistance values are from the 24-value series decade as specifed in military standards ms90178. 1.0/1.1/1.3/1.5/1.6/1.8/2.0/2.2/2.4/2.7/3.0 3.3/3.6/3.9/4.3/4.7/5.1/5.6/6.2/6.8/7.5/8.2/9.1 type p20/25/30 type p60/65/85/100 aas-920-327a-04/2014 www.amphenol-sensors.com ? 2014 amphenol corporation. all rights reserved. specifcations are subject to change without notice. other company names and product names used in this document are the registered trademarks or trademarks of their respective owners. a mphenol advanced sensors
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