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T, M, C

www.vishay.com Vishay Dale

Revision: 09-Aug-2018 1Document 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

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)

(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

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)

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

0.25 (6.35) NOM.

1.5 (36.1) MIN.

CLEAN LEAD LENGTH 3 ± 0.25 (76.2 ± 6.4)

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

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

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

- 50

- 40

- 30

- 20

- 10

100

110

120

130

140

150

T, M, C

www.vishay.com Vishay Dale

Revision: 09-Aug-2018 4Document 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

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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www.vishay.com Vishay

Revision: 08-Feb-17 1Document Number: 91000

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

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