Series 1 BetaCurve Bare leaded Thermistors
Introduction
The BetaCURVE Thermistor Series I are small epoxy coated devices with solid tin plated lead
wires. The series offers a choice of precision temperature tolerance classifications for a wide
variety of customer applications, such as temperature measurements, temperature indication,
temperature control, and thermal compensation.
The BetaCURVE Series history of "long term" stability and reliability performance have been
demonstrated in critical medical, scientific instrumentation, military/aerospace and industrial
applications.
Thermistor interchangeability has become an important factor for cost efficiency in advanced
thermal performance applications. The need for expensive individual thermistor calibration is not
necessary. The BetaCURVE Series interchangeability means that each device will match the
published Resistance−Temperature Characteristics for a given thermistor and will be within the
specified deviation (tolerance, ie. ±0.1°C, ±0.2°C, ±0.5°C and ±1.0°C) limits over the
temperature range 0°C to 70°C.
Shape and Dimensions
Features
Fast time response (1 second typical in
liquids).
DC (Dissipation Constant) = 0.75 mW/
C typical in still air at 25ºC.
Available in custom probe assemblies.
Tight tolerance available − +/− 0.1 C
from C to 70 C.
Proven Stability and Reliability.
Min./Max Temperature Exposure =
−80ºC to +150ºC.
Alloy lead wires for reduced thermal
conductivity ("stem effect").
o
o
o
o
Applications
Temperature sensing, control and
compensation.
Medical equipment and patient
monitoring.
Aerospace instrumentation and crystal
oscillator compensation.
Liquid or gas temperature control and
monitoring.
Assembly into probes for a wide variety
of applications.
Part Numbering System
Electrical Specifications
Part
Number
Color Code
Resistance @
25°C (Ohms)
Resistance
Tol. @ 25°C
Temperature Tolerance and Range
Alpha
@ 25°C
0/50 °C
Beta Value
Curve #
Number
2.2K3A1A
2.2K3A1B
2.2K3A1C
2.2K3A1D
3K3A1A
3K3A1B
3K3A1C
3K3A1D
5K3A1A
5K3A1B
5K3A1C
5K3A1D
10K3A1A
10K3A1B
10K3A1C
10K3A1D
10K4A1A
10K4A1B
10K4A1C
10K4A1D
30K5A1A
30K5A1B
30K5A1C
30K5A1D
30K6A1A
30K6A1B
30K6A1C
30K6A1D
50K6A1A
50K6A1B
50K6A1C
50K6A1D
100K6A1A
100K6A1B
100K6A1C
100K6A1D
Brown
Brown
Brown
Brown
Red
Red
Red
Red
Orange
Orange
Orange
Orange
Yellow
Yellow
Yellow
Yellow
Black
Black
Black
Black
White
White
White
White
Green
Green
Green
Green
Blue
Blue
Blue
Blue
Violet
Violet
Violet
Violet
25°C (Ohms)
2252
2252
2252
2252
3000
3000
3000
3000
5000
5000
5000
5000
10000
10000
10000
10000
10000
10000
10000
10000
30000
30000
30000
30000
30000
30000
30000
30000
50000
50000
50000
50000
100000
100000
100000
100000
Tol. @ 25°C
± 0.25%
± 0.50%
± 1.00%
± 2.00%
± 0.25%
± 0.50%
± 1.00%
± 2.00%
± 0.25%
± 0.50%
± 1.00%
± 2.00%
± 0.25%
± 0.50%
± 1.00%
± 2.00%
± 0.25%
± 0.50%
± 1.00%
± 2.00%
± 0.25%
± 0.50%
± 1.00%
± 2.00%
± 0.25%
± 0.50%
± 1.00%
± 2.00%
± 0.25%
± 0.50%
± 1.00%
± 2.00%
± 0.25%
± 0.50%
± 1.00%
± 2.00%
± 0.1 °C (0 to 70 °C)
± 0.2 °C (0 to 70 °C)
± 0.5 °C (0 to 70 °C)
± 1.0 °C (0 to 70 °C)
± 0.1 °C (0 to 70 °C)
± 0.2 °C (0 to 70 °C)
± 0.5 °C (0 to 70 °C)
± 1.0 °C (0 to 70 °C)
± 0.1 °C (0 to 70 °C)
± 0.2 °C (0 to 70 °C)
± 0.5 °C (0 to 70 °C)
± 1.0 °C (0 to 70 °C)
± 0.1 °C (0 to 70 °C)
± 0.2 °C (0 to 70 °C)
± 0.5 °C (0 to 70 °C)
± 1.0 °C (0 to 70 °C)
± 0.1 °C (0 to 70 °C)
± 0.2 °C (0 to 70 °C)
± 0.5 °C (0 to 70 °C)
± 1.0 °C (0 to 70 °C)
± 0.1 °C (0 to 70 °C)
± 0.2 °C (0 to 70 °C)
± 0.5 °C (0 to 70 °C)
± 1.0 °C (0 to 70 °C)
± 0.1 °C (0 to 70 °C)
± 0.2 °C (0 to 70 °C)
± 0.5 °C (0 to 70 °C)
± 1.0 °C (0 to 70 °C)
± 0.1 °C (0 to 70 °C)
± 0.2 °C (0 to 70 °C)
± 0.5 °C (0 to 70 °C)
± 1.0 °C (0 to 70 °C)
± 0.1 °C (0 to 70 °C)
± 0.2 °C (0 to 70 °C)
± 0.5 °C (0 to 70 °C)
± 1.0 °C (0 to 70 °C)
@ 25°C
−4.39 %/°C
−4.39 %/°C
−4.39 %/°C
−4.39 %/°C
−4.39 %/°C
−4.39 %/°C
−4.39 %/°C
−4.39 %/°C
−4.39 %/°C
−4.39 %/°C
−4.39 %/°C
−4.39 %/°C
−4.39 %/°C
−4.39 %/°C
−4.39 %/°C
−4.39 %/°C
−4.04 %/°C
−4.04 %/°C
−4.04 %/°C
−4.04 %/°C
−4.30 %/°C
−4.30 %/°C
−4.30 %/°C
−4.30 %/°C
−4.68 %/°C
−4.68 %/°C
−4.68 %/°C
−4.68 %/°C
−4.68 %/°C
−4.68 %/°C
−4.68 %/°C
−4.68 %/°C
−4.68 %/°C
−4.68 %/°C
−4.68 %/°C
−4.68 %/°C
Beta Value
3892
3892
3892
3892
3892
3892
3892
3892
3892
3892
3892
3892
3892
3892
3892
3892
3575
3575
3575
3575
3811
3811
3811
3811
4143
4143
4143
4143
4143
4143
4143
4143
4143
4143
4143
4143
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
5
5
5
5
6
6
6
6
6
6
6
6
6
6
6
6
For details on the minimum order quantity (MOQ) of this product, please contact BetaTHERM or your local BetaTHERM representative.
Sales:
sales@betatherm.com
Tel: +353 91 753238/753612
Fax: +353 91 770789/753615
Sales:
sales@betatherm−usa.com
Tel: 508 842 0516
Fax: 508 842 0748
