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").
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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 #
51mcu
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