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)
TINNED COPPER WIRE
BODY DIA.
MAX.
1.5 (36.1) MIN.
CLEAN LEAD LENGTH
BODY DIA.
MAX.
3 ± 0.25 (76.2 ± 6.4)
0.25 (6.35) NOM.
TEFLON INSULATED NICKEL WIRE
PRODUCT TYPE
Type M
Type C
Type T
WIRE GAUGE/DIAMETER
AWG 30: 0.0100 (0.254)
AWG 28: 0.0126 (0.320)
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
0
1
F
F
POINT MATCH TOLERANCE
F
=±1%
J
=±5%
K
= ± 10 %
PACKAGING
F
= Lead (Pb)-free,
bulk
P
= Tin/Lead,
bulk
GLOBAL MODEL
C
M
T
RESISTANCE
VALUE
2001
= 2K
Global Part Numbering: 01C2001SPC3 for CURVE TRACKING THERMISTORS
0
1
C
2
0
0
1
S
F
C
3
PACKAGING
F
= Lead (Pb)-free,
bulk
P
= Tin/Lead,
bulk
CURVE TRACK TOLERANCE
(1)
A2
B2
C2
A3
B3
C3
A4
B4
A5
B5
C5
A8
B8
C8
CURVE GLOBAL MODEL RESISTANCE
VALUE
01
C
2001
= 2K
02
M
04
T
08
09
17
CHARACTERISTICS
S
Note
(1)
See following pages for tolerance
explanations and details.
www.vishay.com
104
For technical questions, contact:
thermistor1@vishay.com
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
R
25
(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
3
4
CURVE NUMBER
7
8
9
12
14
17
MAXIMUM BODY DIAMETER
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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
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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]
•
••
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•••
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•••
For technical questions, contact:
thermistor1@vishay.com
www.vishay.com
105
Document Number: 33003
Revision: 12-Nov-09
M, C, T
Vishay Dale
NTC Thermistors, Radial 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 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:
10
9
8
TOLERANCE (± %)
7
6
5
4
3
2
1
0
- 50
- 40
- 30
- 20
- 10
± 5 % POINT MATCH CURVE
25 °C
± 1 °C CURVE TRACK CURVE
A2
A8
A3
A4
A5
100
110
10
20
30
40
50
60
70
80
90
120
130
140
150
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
PART NO.
SUFFIX
01
02
CURVE
04
08
09
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
X
X
X
X
X
- B3
X
X
X
X
X
- C3
X
X
X
X
X
- A2
X
X
X
X
X
- B2
X
X
X
X
X
- C2
X
X
X
X
X
- A4
X
X
X
X
X
- B4
X
X
X
X
X
- C4
N/A
N/A
N/A
N/A
N/A
- A5
X
X
X
X
X
- B5
X
X
X
X
X
- C5
X
X
X
X
X
- A8
X
X
X
X
X
- B8
X
X
X
X
X
- C8
X
X
X
X
X
www.vishay.com
106
For technical questions, contact:
thermistor1@vishay.com
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
MAX. R vs. T
MIN. R vs. T
RESISTANCE
NOMINAL R vs. T
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.
PIVOT POINT
(CALIBRATION TEMPERATURE)
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
thermistor1@vishay.com.
Document Number: 33003
Revision: 12-Nov-09
For technical questions, contact:
thermistor1@vishay.com
www.vishay.com
107
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www.vishay.com
Vishay
Disclaimer
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Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
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Revision: 12-Mar-12
1
Document Number: 91000
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