Ireland 353-91-753238 BetaTHERM Web: http://www.betatherm.com
U.S.A. 508-842-0516 51
BetaTHERM Sensors
BetaTHERM Sensors
Products and Data
BetaTHERM Sensors BetaCurve Interchangeable Thermistor Series I
Ireland 353-91-753238 BetaTHERM Web: http://www.betatherm.com
U.S.A. 508-842-0516 52
Example: BetaCURVE Series I Part Number
BetaCurve Interchangeable Thermistor Series I
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.
Features
¥ Rapid Time Response (1 second typical in liquids).
¥ DC (Dissipation Constant) = 0.75mW/oC typical in
still air at 25oC.
¥ Min./Max. Temperature Exposure = -80oC to 150oC.
¥ Available in custom probe assemblies.
¥ Proven Stability and Reliability.
¥ Alloy Lead Wires for reduced thermal conductivity
("stem effect").
¥ Choice of 4 temperature tolerance classifications.
Tolerance Code: Specification:
A +/-0.1oC, 0oC to 70oC
B +/-0.2oC, 0oC to 70oC
C +/-0.5oC, 0oC to 70oC
D +/-1.0oC, 0oC to 70oC
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 (R-T Tables pages 43 to 47) for a given
thermistor and will be within the specified deviation
(tolerance, ie. +/-0.1oC, +/-0.2oC, +/-0.5oC and +/-1.0oC)
limits over the temperature range 0oC to 70oC.
With the demands of JIT (just in time) deliveries
expected in todayÕs manufacturing sector. BetaTHERM
maintains high finished goods inventory and dedicated
manufacturing to continuously produce the BetaCURVE
Series.
76.2mm +/-3.3mm
(3.00Ó +/-0.13Ó)
2.413mm
(0.095Ó)
Max. Dia.
Thermally Conductive
Epoxy Coating
32 AWG Tin Plated
Copper Alloy
Lead Wires
10K
Tolerance Classification
BetaCURVE Series
Epoxy Coated
Material Curve #
Resistance Value @ 25oC
31
AA
Thermistor Configuration
BetaTHERM Sensors BetaCurve Interchangeable Thermistor Series I
Ireland 353-91-753238 BetaTHERM Web: http://www.betatherm.com
U.S.A. 508-842-0516 53
BetaCURVE Series I Part Numbers and Specifications
Part Color Code Resistance Resistance Temperature Tolerance Alpha 0/50 oC Curve #
Number ohms @ 25oC Tolerance@ 25oC and Range @ 25oC Beta Value
2.2K3A1A Brown 2252 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.39 %/oC 3892 3
2.2K3A2B Brown 2252 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
2.2K3A3C Brown 2252 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.39 %/oC 3892 3
2.2K3A4D Brown 2252 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.39 %/oC 3892 3
3K3A1A Red 3000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.39 %/oC 3892 3
3K3A1B Red 3000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
3K3A1C Red 3000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.39 %/oC 3892 3
3K3A1D Red 3000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.39 %/oC 3892 3
5K3A1A Orange 5000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.39 %/oC 3892 3
5K3A1B Orange 5000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
5K3A1C Orange 5000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.39 %/oC 3892 3
5K3A1D Orange 5000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.39 %/oC 3892 3
10K3A1A Yellow 10000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.39 %/oC 3892 3
10K3A1B Yellow 10000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
10K3A1C Yellow 10000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.39 %/oC 3892 3
10K3A1D Yellow 10000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.39 %/oC 3892 3
10K4A1A Black 10000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.04 %/oC 3575 4
10K4A1B Black 10000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.04 %/oC 3575 4
10K4A1C Black 10000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.04 %/oC 3575 4
10K4A1D Black 10000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.04 %/oC 3575 4
30K5A1A White 30000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.30 %/oC 3811 5
30K5A1B White 30000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.30 %/oC 3811 5
30K5A1C White 30000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.30 %/oC 3811 5
30K5A1D White 30000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.30 %/oC 3811 5
30K6A1A Green 30000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.68 %/oC 4143 6
30K6A1B Green 30000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.68 %/oC 4143 6
30K6A1C Green 30000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.68 %/oC 4143 6
30K6A1D Green 30000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.68 %/oC 4143 6
50K6A1A Blue 50000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.68 %/oC 4143 6
50K6A1B Blue 50000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.68 %/oC 4143 6
50K6A1C Blue 50000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.68 %/oC 4143 6
50K6A1D Blue 50000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.68 %/oC 4143 6
100K6A1A Violet 100000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.68 %/oC 4143 6
100K6A1B Violet 100000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.68 %/oC 4143 6
100K6A1C Violet 100000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.68 %/oC 4143 6
100K6A1D Violet 100000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.68 %/oC 4143 6
BetaTHERM Sensors BetaCurve Interchangeable Thermistor Series II
Ireland 353-91-753238 BetaTHERM Web: http://www.betatherm.com
U.S.A. 508-842-0516 54
.
Example: BetaCURVE Series II Part Number
BetaCurve Interchangeable Thermistor Series II
Applications
¥ Temperature sensing, control and compensation.
¥ P.C. board mounting for over temperature
protection.
¥ Automotive car seat heater control and engine
management.
¥ Assembly into probes for a wide variety of
applications in industrial temperature control and
instrumentation.
Features
¥ Rapid Time Response (1 second typical in liquids).
¥ DC (Dissipation Constant) = 0.85mW/ oC
typical in still air at 25oC.
¥ Min./Max. Temperature Exposure = -80 to 150oC.
¥ Available in custom probe assemblies.
¥ Proven Stability and Reliability.
¥ Teflon Insulated lead wires.
¥ Choice of 4 temperature tolerance classifications:
Tolerance Code: Specification:
A +/-0.1oC, 0oC to 70oC
B +/-0.2oC, 0oC to 70oC
C +/-0.5oC, 0oC to 70oC
D +/-1.0oC, 0oC to 70oC
Similar to the BetaCURVE Thermistor Series I, the
Series II thermistors are small epoxy coated devices. The
same quality thermistor elements are used during assembly.
Series II are manufactured using 30 AWG teflon insulated
lead wires. They offer the same choice of precision
temperature tolerance classifications for a wide variety of
customer applications.
The Series II differs from Series I marginally with
respect to D.C. The typical value of 0.85mW/oC in still air
at 25oC is due to the larger lead wire diameter made of pure
copper.
The insulated lead wires offer customers the added
protection of TFE teflon insulation that has the highest
temperature rating (150oC) of the most common insulating
materials. TFE teflon is a material that does not bond easily
with epoxies or adhesives. For this reason the surface of the
teflon wire is etched, which enhances bondability for
applications that require mounting or potting the thermistor
with epoxies or adhesives.
The series is produced in high volume as a
Standard configuration. Other configurations are available
on a custom basis. Larger or smaller lead wires can be used
with the same chip elements and with insulating materials of
PVC, Kynar, Tefzel, Nylon/Polyurethane, etc. Contact
Applications Engineering Group for support if requirements
differ from the standard configuration as shown above.
76.2mm +/-3.3mm
(3.00Ó +/-3.13Ó)
2.413mm
(0.095Ó)
Max. Dia.
Thermally Conductive
Epoxy Coating
12.7mm +/-3.3mm
(0.50Ó +/-0.13Ó)
30 AWG Sliver Plated
Copper Lead Wires
With Etched
TFE Telfon Insulation,
10K
Insulated Lead Wires
Tolerance Classification
BetaCURVE Series
Epoxy Coated
Material Curve #
Resistance Value @ 25oC
31
AIA
Thermistor Configuration
BetaTHERM Sensors BetaCurve Interchangeable Thermistor Series II
Ireland 353-91-753238 BetaTHERM Web: http://www.betatherm.com
U.S.A. 508-842-0516 55
BetaCURVE Series II Part Numbers and Specifications:
Part Color Resistance Resistance Temperature Tolerance Alpha 0/50 oC Curve #
Number Code ohms @ 25oC Tolerance@ 25oC and Range @ 25oC Beta Value
2.2K3A1IA Brown 2252 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.39 %/oC 3892 3
2.2K3A2IB Brown 2252 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
2.2K3A3IC Brown 2252 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.39 %/oC 3892 3
2.2K3A4ID Brown 2252 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.39 %/oC 3892 3
3K3A1IA Red 3000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.39 %/oC 3892 3
3K3A1IB Red 3000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
3K3A1IC Red 3000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.39 %/oC 3892 3
3K3A1ID Red 3000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.39 %/oC 3892 3
5K3A1IA Orange 5000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.39 %/oC 3892 3
5K3A1IB Orange 5000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
5K3A1IC Orange 5000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.39 %/oC 3892 3
5K3A1ID Orange 5000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.39 %/oC 3892 3
10K3A1IA Yellow 10000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.39 %/oC 3892 3
10K3A1IB Yellow 10000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
10K3A1IC Yellow 10000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.39 %/oC 3892 3
10K3A1ID Yellow 10000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.39 %/oC 3892 3
10K4A1IA Black 10000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.04 %/oC 3575 4
10K4A1IB Black 10000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.04 %/oC 3575 4
10K4A1IC Black 10000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.04 %/oC 3575 4
10K4A1ID Black 10000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.04 %/oC 3575 4
30K5A1IA White 30000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.30 %/oC 3811 5
30K5A1IB White 30000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.30 %/oC 3811 5
30K5A1IC White 30000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.30 %/oC 3811 5
30K5A1ID White 30000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.30 %/oC 3811 5
30K6A1IA Green 30000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.68 %/oC 4143 6
30K6A1IB Green 30000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.68 %/oC 4143 6
30K6A1IC Green 30000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.68 %/oC 4143 6
30K6A1ID Green 30000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.68 %/oC 4143 6
50K6A1IA Blue 50000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.68 %/oC 4143 6
50K6A1IB Blue 50000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.68 %/oC 4143 6
50K6A1IC Blue 50000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.68 %/oC 4143 6
50K6A1ID Blue 50000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.68 %/oC 4143 6
100K6A1IA Violet 100000 +/- 0.25% +/- 0.1 oC (0 to 70 oC) -4.68 %/oC 4143 6
100K6A1IB Violet 100000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.68 %/oC 4143 6
100K6A1IC Violet 100000 +/- 1.00% +/- 0.5 oC (0 to 70 oC) -4.68 %/oC 4143 6
100K6A1ID Violet 100000 +/- 2.00% +/- 1.0 oC (0 to 70 oC) -4.68 %/oC 4143 6
BetaTHERM Sensors BetaCURVE Interchangeable Thermistor Series III
Ireland 353-91-753238 BetaTHERM Web: http://www.betatherm.com
U.S.A. 508-842-0516 56
Example: BetaCURVE SeriesIII Part Number
BetaCURVE Interchangeable Thermistor Series III
Applications
¥ Temperature sensing, control and compensation.
¥ Applied to applications where higher Dissipation
Constant is required (2.0mW/oC).
Features
¥ Rapid Time Response (1.3 second typical in liquids).
¥ DC (Dissipation Constant) = 2.0mW/oC typical in
still air at 25oC.
¥ Min./Max. Temperature Exposure = -80oC to 150oC.
¥ Available in custom probe assemblies.
¥ Proven Stability and Reliability
¥ Larger lead wires ease assembly requirements.
BetaCURVE Thermistor Series III are similar in
construction to Series I except for the use of larger (30
AWG) copper leads. This allows the Dissipation Constant
(D.C.) to be raised from o.75mW/oC to 2.0mW/oC. Larger
leads also facilitate easier handling during assembly
operations. The Thermal Time Constant is raised to 14
seconds in air. Custom resistance values and tolerances are
available upon request.
Part Number Color Code Resistance Resistance Tolerance Temperature Tolerance Alpha @ 0/50oC Beta Curve #
ohms @ 25oC@ 25
oC and Range 25oC Value
2.2K3A1W2 Brown 2252 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
3K3A1W2 Red 3000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
5K3A1W2 Orange 5000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
10K3A1W2 Yellow 10000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
10K4A1W2 Black 10000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.04 %/oC 3575 4
30K5A1W2 White 30000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.30 %/oC 3811 5
30K6A1W2 Green 30000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.68 %/oC 4143 6
50K6A1W2 Blue 50000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.68 %/oC 4143 6
100K6A1W2 Violet 100000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.68 %/oC 4143 6
BetaCURVE Series III Part Numbers and Specifications:
45.7mm +/-5.0mm
(1.80Ó +/-0.20Ó)
2.413mm
(0.095Ó)
Max. Dia.
Thermally Conductive
Epoxy Coating
30 AWG Tin Plated
Copper Alloy
Lead Wires
10K
2mW/oC Dissipation Constant
BetaCURVE Series
Epoxy Coated
Material Curve #
Resistance Value @ 25oC
31
AW2
Thermistor Configuration
BetaTHERM Sensors BetaCURVE Interchangeable Thermistor Series IV
Ireland 353-91-753238 BetaTHERM Web: http://www.betatherm.com
U.S.A. 508-842-0516 57
Photo ?
Example: BetaCURVE Series IV Part Number
BetaCURVE Interchangeable Series IV
Applications:
¥ Temperature sensing, control and compensation.
¥ Applications where a Dissipation Constant of 3.0
mW/oC is required.
Features:
¥ Rapid Time Response (1.5 second, typical in liquids).
¥ DC (Dissipation Constant) = 3.0mW/oC
typical in still air at 25oC.
¥ Min./Max. Temperature Exposure = -80oC to 150oC.
¥ Available in custom probe assemblies.
¥ Proven Stability and Reliability
BetaTherm Thermistor Series IV provides a higher
Dissipation Constant (3.0mW/oC) allowing design
engineers greater flexibility on sensor design projects. The
higher D.C. is achieved using 28 AWG tin plated copper
lead wires and also larger chip thermistor elements. These
chip elements are manufactured using the same high quality
materials and manufacturing process as Series I. Custom
resistance values and tolerances are available upon request.
BetaCURVE Series IV Part Numbers and Specifications:
Part Number Color Code Resistance
Resistance Tolerance
Temperature Tolerance Alpha @ 0/50 oC Beta Curve #
ohms @ 25oC@ 25
oC and Range 25oC Value
2.2K3A1W3 Brown 2252 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
3K3A1W3 Red 3000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
5K3A1W3 Orange 5000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
10K3A1W3 Yellow 10000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.39 %/oC 3892 3
10K4A1W3 Black 10000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.04 %/oC 3575 4
30K5A1W3 White 30000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.30 %/oC 3811 5
30K6A1W3 Green 30000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.68 %/oC 4143 6
50K6A1W3 Blue 50000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.68 %/oC 4143 6
100K6A1W3 Violet 100000 +/- 0.50% +/- 0.2 oC (0 to 70 oC) -4.68 %/oC 4143 6
45.7mm +/-5.0mm
(1.80" +/-0.20")
2.794mm
(0.110")
Max. Dia.
Thermally Conductive
Epoxy Coating
28 AWG Tin Plated
Copper
Lead Wires
10K
3mW/oC Dissipation Constant
BetaCURVE Series
Epoxy Coated
Material Curve #
Resistance Value @ 25oC
31
AW3
Thermistor Configuration
BetaTHERM Sensors BetaCURVE Interchangeable Thermistor Series V
Ireland 353-91-753238 BetaTHERM Web: http://www.betatherm.com
U.S.A. 508-842-0516 58
Photo ?
Thermistor Configuration
Example: BetaCURVE Series V Part Number
BetaCURVE Interchangeable Thermistor Series V
Applications
¥ Widely used for cold temperature environments.
¥ Artificial snow making equipment.
¥ Temperature compensation.
¥ Automotive air conditioning.
Features
¥ Rapid Time Response (1 second typical in liquids).
¥ DC (Dissipation Constant) = 0.75mW/oC typical in
still air at 25oC.
¥ Min./Max. Temperature Exposure = -80oC to 125oC.
¥ Available in custom probe assemblies.
¥ Proven Stability and Reliability
The BetaCURVE Thermistor Series V are small
epoxy coated devices with solid tin plated lead wires. Due
to the low nominal resistance values, these devices are
suitable for measurement applications at the lower
temperature ranges. The use of tin plated copper wires
minimize the effects of lead wire resistance. Series V is
specified with a temperature tolerance of +/-0.2oC over the
range -20oC to 50oC. Resistance - temperature tables are
given on pages 43 to 47 for each of the thermistor types
listed below. The series does not offer color coding (all
thermistor in this series are coated with black epoxy).
BetaCURVE Interchangeable Series V Part Numbers and Specifications:
Part Number for Color Code Resistance @ Resistance Tolerance Temperature Tolerance Alpha 0/50oC Beta Curve #
+/- 5% @ 25 oC 25 oC (ohms) @ 25 oC and Range @ 25 oC Value
0.1K1A1 Black 100 +/-0.50% +/-0.2 oC 0 oC to 50 oC -3.50% 3108 1
0.3K1A1 Black 300 +/-0.50% +/-0.2 oC 0 oC to 50 oC -3.50% 3108 1
1K2A1 Black 1000 +/-0.50% +/-0.2 oC 0 oC to 50 oC -3.68% 3263 2
1K7A1 Black 1000 +/-0.50% +/-0.2 oC 0 oC to 50 oC -3.87% 3422 7
76.2mm +/-3.3mm
(3.00Ó +/-0.13Ó)
2.413mm
(0.095Ó)
Max. Dia.
Thermally Conductive
Epoxy Coating
32 AWG Tin Plated
Copper
Lead Wires
1K
BetaCURVE Series
Epoxy Coated
Material Curve #
Resistance Value @ 25oC
21
A
BetaTHERM Sensors BetaCURVE Medical Grade Thermistor Series VI:
Ireland 353-91-753238 BetaTHERM Web: http://www.betatherm.com
U.S.A. 508-842-0516 59
Photo ?
\
Example: BetaCURVE Series VI Part Number
BetaCURVE Medical Grade Thermistor Series VI:
Applications
¥ Oxygen sensing equipment and instruments.
¥ Esophageal Catheters
¥ Skin sensors
¥ Oral and Rectal Probes
¥ Pharmaceutical manufacturing equipment
Features
¥ Rapid Time Response (1 second typical in liquids).
¥ DC (Dissipation Constant) = 0.75mW/oC
typical in still air at 25oC.
¥ Min./Max. Temperature Exposure = -80oC to 150oC.
¥ Available in custom probe assemblies.
¥ Proven Stability and Reliability
The BetaCURVE Thermistor Series VI are small
epoxy coated devices with solid tin plated lead wires. The
Series VI is specified with a temperature tolerance of +/-
0.05oC over the range from 32oC to 44oC and is available
in different nominal resistance values. Each thermistor
element is manufactured using high quality materials and
processes. High accuracy temperature baths (+/-0.005oC)
are used during all stages of assembly and final testing.
This special series is offered to the Medical
Industry for both new and existing applications. These
devices are also useful in the pharmaceutical manufacturing
equipment sector.
Custom resistance values and tolerances are
available upon request.
BetaCURVE Medical Grade Series VI Part Numbers and Specifications:
Part Number Color Code Resistance @ Temperature Tolerance Alpha @ 0/50oC Beta Curve #
+/- 5% @ 25oC25
oC (ohms) and Range 25oC Value
2.2K3A1AM Brown 2252 +/-0.05 oC 32 oC to 44 oC -4.39% 3892 3
10K3A1AM Yellow 10000 +/-0.05 oC 32 oC to 44 oC -4.39% 3892 3
10K4A1AM Black 10000 +/-0.05 oC 32 oC to 44 oC -4.04% 3575 4
76.2mm +/-3.3mm
(3.00" +/-0.13")
2.413mm
(0.095")
Max. Dia.
Thermally Conductive
Epoxy Coating
32 AWG Tin Plated
Copper Alloy
Lead Wires
10K
Medical Grade Classification
BetaCURVE Series
Epoxy Coated
Material Curve #
Resistance Value @ 25oC
41
AAM
Thermistor Configuration
BetaTHERM Sensors
BetaCHIP Thermistor Series VII
Ireland 353-91-753238 BetaTHERM Web: http://www.betatherm.com
U.S.A. 508-842-0516 60
Photo ?
Example: BetaCHIP Series VII Part Number
BetaCHIP Thermistor Series VII
Applications
¥ Ambient temperature sensing, control and
compensation.
¥ Aerospace instrumentation and crystal oscillator
compensation.
¥ Liquid or gas temperature control and monitoring.
¥ Assembly into probes for a wide variety of
applications.
Features
¥ Rapid Time Response (1 second typical in liquids).
¥ DC (Dissipation Constant) = 0.75mW/oC
typical in still air at 25oC.
¥ Min./Max. Temperature Exposure = -80oC to 150oC.
¥ Available in custom probe assemblies.
¥ Proven Stability and Reliability.
¥ Alloy Lead Wires for reduced thermal conductivity
("stem effect").
The BetaCHIP +/-1% @ 25oC Thermistor Series
are small epoxy coated devices with solid tin plated lead
wires. The series offers an economical alternative to the
precision BetaCURVE Series for a wide variety of customer
applications such as temperature control and thermal
compensation where less precision will perform in the
application.
The series is useful in applications where the
temperature range is near room temperature (25oC).
Predicted deviations across the complete temperature range
are given in BetaTHERM Resistance Multipliers-
Temperature and Deviation Tolerance Tables on pages 48
and 49.
BetaCHIP Series VII Part Numbers and Specifications:
Part Number Resistance Alpha @ 0/50 oC Curve #
@ +25oC +25 oC Beta Value
0.1K1A1-25 100 -3.50% 3108 1
0.3K1A1-25 300 -3.50% 3108 1
1K2A1-25 1000 -3.68% 3263 2
1K7A1-25 1000 -3.87% 3422 7
2K3A1-25 2000 -4.39% 3892 3
2.2K3A1-25 2252 -4.39% 3892 3
3K3A1-25 3000 -4.39% 3892 3
5K3A1-25 5000 -4.39% 3892 3
10K3A1-25 10000 -4.39% 3892 3
10K4A1-25 10000 -4.04% 3575 4
30K5A1-25 30000 -4.30% 3811 5
30K6A1-25 30000 -4.68% 4143 6
50K6A1-25 50000 -4.68% 4143 6
100K6A1-25 100000 -4.68% 4143 6
1M9A1-25 1000000 -5.18% 4582 9
76.2mm +/-3.3mm
(3.00Ó +/-0.13Ó)
2.413mm
(0.095Ó)
Max. Dia.
Thermally Conductive
Epoxy Coating
32 AWG Tin Plated
Copper Alloy
Lead Wires
Tolerance Code (1% @ 25oC)
Epoxy Coated
Material Curve #
Resistance Value @ 25oC
10K 3 A 1-25
Thermistor Configuration
Photo?
36K53A1 Configuration
36K53D1 and 11K2M4D1 Configuration
62K345D1 Configuration
The BetaLINEAR Series is offered in different
configurations which allows customers a choice for various
applications. The configuration options shown are standard
and are referred to as linear composites to which precision
resistors of specific value are added to create a linear
response of voltage or resistance verses a change in body
temperature. The linear response is limited to specific
temperature ranges. Also, the degree of accuracy (tolerance)
will vary depending on the temperature span.
The linear composite is made from two or three
sensor elements. The most popular composite (36K53A1 or
D1) is made with two elements (30K5 and 6K3), hence the
three leaded composite. To assist the identification of the
elements, the leads are cut at different lengths for the
36K53A1 composite and are color coded for the D1
composites.
T1
6K
T2
30K
T1
6K
T2
30K
Gold Green Red
Gold Green RedBlue
T3 T2 T1
BetaTHERM Sensors BetaLINEAR Series
Ireland 353-91-753238 BetaTHERM Web: http://www.betatherm.com
U.S.A. 508-842-0516 61
76.2mm +/- 3.18mm
(3.00" +/- 0.13")
69.85mm +/- 3.18mm
(2.75" +/- 0.13")
63.50mm +/- 3.18mm
(2.50" +/- 0.13")
2.794mm
(0.110)
Max.Dia.
32 AWG solid tin plated
copper alloy wires
34 AWG solid copper (magnet) wire
with polyurethane/nylon insulation.
Colors, red, green and gold.
152 Nominal
(6.0") 5.35mm
(0.25") typ.
6.35mm Max.
(0.25")
2.03mm
(0.08")
Max.dia.
34 AWG solid copper (magnet) wire
with polyurethane/nylon insulation.
Colors, red, green and gold.
152 Nominal
(6.0") 5.35mm
(0.25") typ.
9.53mm Max.
(0.375")
2.42mm
(0.095")
Max.dia.
BetaTHERM Sensors BetaLINEAR Series
Ireland 353-91-753238 BetaTHERM Web: http://www.betatherm.com
U.S.A. 508-842-0516 62
The BetaLINEAR circuit designs consist of two
sub groupings - precision resistors and thermistors - which
when connected can be operated as a single device for either
linear voltage or linear resistance response vs. temperature.
The circuit designs shown can accommodate a wide variety
of circuit mounting options. Options include remote
locations of custom thermistor probes and P.C. board
mounting precision resistors or packaging resistors and
thermistors within a custom probe design.
Linear thermistor network circuits are ideally
suited for digital readout systems to measure temperatures
in the range from -30oC to 100oC. Sensitivity is superior to
Platinum and other metal RTD devices with minimum
effect of lead resistance on accuracy. BetaLINEAR
thermistor circuits can provide up to 400 times the output of
a thermocouple with no need for junction temperature or
lead wire compensation.
Resistance Mode Output for 36K53A1 (D1) Networks.
Voltage Mode Negative slope output for 36K53A1(D1)
Networks
Voltage Mode Positive slope output for 36K53A1(D1)
Networks
Resistance Mode Schematic
For BetaLINEAR 36K53A1, D1 and 11K2M4D1
composites with assigned resistor sets.
Resistance Mode Schematic
For 62K345D1 with assigned resistor set.
Voltage Mode Schematic
For 36K53A1 (D1) and 11K2M4D1 composites
with assigned resistor sets.
Voltage Mode Schematic
For 62K345D1 composite with assigned resistor set.
RT
R1
R2
T2 T1
RTR1
T3 T1
R3 R2
T2
Eout
Eout
Positive Slope
Negative Slope
R1
R2
T2 T1
Ein
R1
R3 R2
T1
T2
T3
E out
Positive Slope
E out
Negative Slope
E in
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100
Temperature(degrees C)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
Eout/Ein Ratio
20K
18K
16K
14K
12K
10K
8K
6K
4K
2K
0K -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100
Temperature (ûC)
Resistance (ohms)
36K 53A1-RS104
36K 53A1-RS107
36K 53A1-RS106
36K 53A1-RS103
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100
Temperature(degrees C)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
Eout/Ein Ratio
BetaTHERM Sensors BetaLINEAR Series
Ireland 353-91-753238 BetaTHERM Web: http://www.betatherm.com
U.S.A. 508-842-0516 63
BetaLINEAR Part Numbers and Specifications.
Temp. Range Composite Network Part Resistor Set Part Eout Positive Slope Resistance Mode Ein Max. ITMax Linearity
Part Number Number (ohms) Eout Negative Slope microAmps Deviation
Numbers degrees oC
0 to 100 oC 36K53A1 36K53A1-RS103 RS103 Eo= (+0.0053482Ein)T+0.13494Ein Rt=(-17.114)T+2768.24 2.0Volts 624 +/-0.217
36K53D1 36K53D1-RS1030 R1=3200 +/-0.1% Eo= (-0.0053482Ein)T+0.86506Ein
R2=6250 +/-0.1%
-30 to 50 oC 36K53A1 36K53A1-RS104 RS104 Eo= (+0.0067967Ein)T+0.34892Ein Rt=(-127.095)T+12176 3.0Volts 474 +/-0.161
36K53D1 36K53D1-RS104 R1=18700 +/-0.1% Eo= (-0.0067967Ein)T+0.65106Ein
R2=35250 +/-0.1%
-5 to 45 oC 36K53A1 36K53A1-RS106 RS106 Eo= (+0.0056847Ein)T+0.19414Ein Rt=(-32.403)T+4593.4 3.5Volts 610 +/-0.070
36K53D1 36K53D1-RS106 R1=5700 +/-0.1% Eo= (-0.0056847Ein)T+0.805857Ein
R2=12000 +/-0.1%
-2 to 38 oC 36K53A1 36K53A1-RS107 RS107 Eo= (+0.00563181Ein)T+0.192435Ein Rt=(-32.101)T+4603.15 4.0Volts 680 +/-0.035
36K53D1 36K53D1-RS107 R1=5700 +/-0.1% Eo= (-0.00563181Ein)T+0.807561Ein
R2=12400 +/-0.1%
-55 to 85 oC 11K2M4D1 D1-RS105 11K2M4 RS105 Eo= (+0.005069Ein)T+0.3410Ein Rt=(-18.0)T+2338 2.0Volts 830 +/-1.12
R1=3550 +/-0.1% Eo= (-0.005069Ein)T+0.6590Ein
R2=6025 +/-0.1%
-50 to 50 oC 62K345D1 62K345D1-RS108 RS108 Eo= (+0.0055915Ein)T+0.407Ein Rt=(-129.162)T+13698.2 3.5Volts 675 +/-0.10
R1=23100 +/-0.1% Eo= (-0.0055915Ein)T+0.593Ein
R2=88200 +/-0.1%
R2=88200 +/-0.1%
¥ The overall accuracy of the linear networks are a combination of the thermistor element precision (+/-0.2oC from 0oC to
70oC), uncertainty due to +/-0.1% resistor tolerance and the linearity deviation.
¥E
in Max and ITMax values are assigned to control thermistor self-heat errors. Thermistor Dissipation Constant of
8mW/oC in a well stirred oil bath is typical for each thermistor.
¥ Higher Ein Max and ITMax values may be used when thermistor mounting methods increase the D.C. or an increase of
the error is acceptable. Ein Max and ITMax values may be exceeded without any damage to the thermistor elements.
