T, M, C

www.vishay.com

Vishay Dale

Revision: 08-Apr-2021

1

Document 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

LINKS TO ADDITIONAL RESOURCES

FEATURES

• Small size - conformally coated

• Wide resistance range

• Available in 4 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/ntc-rt-calculator/

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 220K

Ω

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 3964

K

B25/85 -value

3468 to 3974

K

Maximum dissipation

50 to 100

mW

Dissipation factor

δ

(for information only)

2 to 3.5

mW/K

Thermal time constant

τ

(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

Design Tools

T, M, C PRODUCT DATA AND R25 RESISTANCE RANGE AVAILABILITY

CURVE

B25/75

(K)

B25/85

(K)

TCR25

(%/K)

T

(k

Ω)

M

(k

Ω)

C

(k

Ω)

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

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 Ω

33

82

270

680

2.2K

5.6K

18K

50K

150K

39

100

330

820

2.7K

6.8K

22K

56K

220K

47

120

390

1K

3.3K

8.2K

27K

68K

50

150

470

1.2K

3.9K

10K

33K

82K

56

180

500

1.5K

4.7K

12K

39K

100K

68

220

560

1.8K

5.0K

15K

47K

120K