T, M, C
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Revision: 09-Aug-2018 1Document Number: 33003
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NTC Thermistors, Radial Leaded and Coated
FEATURES
• Small size - conformally coated
• Wide resistance range
• Available in 7 different R-T curves
• Available in point matched tolerances down to
1 % and curve tracking precision down to
± 0.2 °C
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
APPLICATIONS
Temperature measurement, sensing and control in
industrial, consumer and telecom applications. For
on-board sensing or for accurate remote sensing in metal
probes or housings.
DESCRIPTION
Models T, M, and C are conformally coated, leaded
thermistors. 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.
DESIGN-IN SUPPORT
For complete Curve Computation, visit:
www.vishay.com/thermistors/curve-computation-list/
Note
(1) For information only, dissipation factor, response time, and thermal time constant are wire type and product size dependent
Note
• Most popular and available values, intermediate resistance values and tolerances available on request
QUICK REFERENCE DATA
PARAMETER VALUE UNIT
Resistance value at 25 °C 30 to 1M
Tolerance on R25-value
(point matched) ± 1, ± 2, ± 3, ± 5, ± 10 %
Temperature accuracy
(curve tracking) ± 0.2, ± 0.5, ± 1 °C
B25/75 -value 3477 to 4842 K
B25/85 -value 3468 to 4875 K
Maximum dissipation 50 to 100 mW
Dissipation factor
(for information only) 2 to 3.5 mW/K
Thermal time constant
(for information only) 6 to 14 s
Response time (oil)
(for information only) 1.3 s
Operating temperature range
at zero power (short term) -40 to +125 (150) °C
Weight 0.075 to 0.15 g
T, M, C PRODUCT DATA AND R25 RESISTANCE RANGE AVAILABILITY
CURVE B25/75
(K)
B25/85
(K)
TCR25
(%/K)
T
(k)
M
(k)
C
(k)
R25 ± TOL.
AVAILABILITY
2 3477 3486 -3.84 0.03 to 3.3 1, 2, 3, 5, 10
9 3679 3694 -4.03 10 to 56 1, 2, 3, 5, 10
8 3925 3943 -4.30 20 to 220 1, 2, 3, 5, 10
1 3964 3974 -4.39 0.2 to 18 1, 2, 3, 5, 10
4 4247 4262 -4.67 10 to 100 1, 2, 3, 5, 10
7 4437 4461 -4.83 10 to 270 1, 2, 3, 5, 10
12 4842 4875 -5.23 47 to 1000 1, 2, 3, 5, 10
Maximum dissipation at 25 °C in mW 50 75 100
Dissipation factor in mW/K (1) 2.0 2.5 3.0
Response time in s (1) 1.3 1.2 1.4
Thermal time constant in s (1) 14 10 6
STANDARD RESISTANCE VALUES at 25 °C in
33 82 270 680 2.2K 5.6K 18K 50K 150K 500K
39 100 330 820 2.7K 6.8K 22K 56K 220K 560K
47 120 390 1K 3.3K 8.2K 27K 68K 270K 680K
50 150 470 1.2K 3.9K 10K 33K 82K 330K 820K
56 180 500 1.5K 4.7K 12K 39K 100K 390K 1M
68 220 560 1.8K 5.0K 15K 47K 120K 470K
T, M, C
www.vishay.com Vishay Dale
Revision: 09-Aug-2018 2Document Number: 33003
For technical questions, contact: thermistor1@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Note
(1) See following pages for tolerance explanations and details
DIMENSIONS in inches (millimeters)
Note
(1) Additional wire gauges (non-insulated) available as AWG24 (type E), AWG26 (type B) and AWG32 (type F). Please contact Vishay
(thermistor1@vishay.com) for further details
Note
• Maximum body diameter is dependent on selected curve number and value, the lower resistance values have the largest diameter. For a
specific part number within the given resistance ranges, please contact thermistor1@vishay.com for maximum diameter information
GLOBAL PART NUMBER AND ORDERING INFORMATION
Global Part Numbering: 01C2001FP for POINT MATCHED THERMISTORS
CURVE NR GLOBAL MODEL RESISTANCE VAL POINT MATCH
TOLERANCE PACKAGING
01
02
04
07
08
09
12
T
M
C
2001 = 2K
1503 = 150K
F = ± 1 %
G = ± 2 %
H = ± 3 %
J = ± 5 %
K = ± 10 %
F = lead (Pb)-free, bulk
P = tin / lead, bulk
Global Part Numbering: 01C2001SPC3 for CURVE TRACKING THERMISTORS
CURVE GLOBAL MODEL RESISTANCE VAL CHARACTERISTICS PACKAGING CURVE TRACK
TOLERANCE (1)
01
04
08
09
T
M
C
2001 = 2K SF = lead (Pb)-free,
bulk
P = tin / lead, bulk
A3 A4 A5 A8
B3 B4 B5 B8
C3 C5 C8
PRODUCT TYPE WIRE GAUGE/DIAMETER (1)
Type M AWG 30: 0.0100 (0.254)
Type C AWG 28: 0.0126 (0.320)
Type T Insulated AWG 30: 0.0100 (0.254)
CURVE NUMBER R25 MIN.
()
MAX. DIAMETER
(INCH (mm))
STANDARD R25 RANGE
()
MAX. DIAMETER
(INCH (mm))
2 30 0.342 (8.69) 330 to 3K 0.095 (2.41) to 0.136 (3.45)
9 10K 0.150 (3.81) 10K to 56K 0.095 (2.41) to 0.150 (3.81)
8 20K 0.131 (3.33) 27K to 220K 0.095 (2.41) to 0.125 (3.18)
1 200 0.315 (8.00) 1.8K to 18K 0.095 (2.41) to 0.136 (3.45)
4 10K 0.136 (3.45) 10K to 100K 0.095 (2.41) to 0.136 (3.45)
7 10K 0.177 (4.50) 27K to 270K 0.095 (2.41) to 0.136 (3.45)
12 47K 0.252 (6.40) 330K to 1M 0.095 (2.41) to 0.136 (3.45)
TINNED COPPER WIRE TEFLON INSULATED NICKEL WIRE
D
0.25 (6.35) NOM.
1.5 (36.1) MIN.
CLEAN LEAD LENGTH 3 ± 0.25 (76.2 ± 6.4)
D
TYPE M, C TYPE T
2001 PF1C0
2001 PCS1C0 3
T, M, C
www.vishay.com Vishay Dale
Revision: 09-Aug-2018 3Document Number: 33003
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THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
TOLERANCES AVAILABLE FOR TYPE T, M, AND C 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:
Fig. 1
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
“Standard Electrical Specifications for Curve Tracking Thermistors” table.
To specify, add the appropriate suffix from 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 SPECIFICATIONS FOR CURVE TRACKING THERMISTORS
TEMPERATURE
RANGE FOR
SPECIFIED
ACCURACY
0 °C to +70 °C 0 °C to +100 °C 25 °C to +90 °C 0 °C to +50 °C
ACCURACY ± 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
PART NO.
SUFFIX - A3 - B3 - C3 - A4 - B4 - C4 - A5 - B5 - C5 - A8 - B8 - C8
CURVE NUMBER
01XX XXXn/aXX XXX X
04XX XXXn/aXX XXX X
08XX XXXn/aXX XXX X
09XX XXXn/aXX 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
80
90
100
110
120
130
140
150
A5
A4
A8
A3
T, M, C
www.vishay.com Vishay Dale
Revision: 09-Aug-2018 4Document Number: 33003
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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 specific curve resistance vs. temperature ratio.
POINT MATCH TOLERANCES VS. TEMPERATURE
Fig. 1
Point match resistance tolerances at temperatures other
than 25 ºC are not the same as at the calibration
temperature. This difference is presented in figure 2.
The tolerance at any given temperature is the point match
tolerance plus a manufacturing tolerance depending on the
specific curve.
DESIGN-IN SUPPORT
A spreadsheet is available for the Vishay thermistor part numbers that gives you the resistance vs temperature data, the
temperature coefficients and accuracy levels at any given temperature range and step. The Steinhart & Hart formula and
coefficients A, B, and C are shown as well. This data can be obtained by visiting the Vishay NTC curve computation page at:
www.vishay.com/thermistors/curve-computation-list/ or send your part number with required temperature range and step to
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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