Radial Thermistors
Last Updated: April 1, 2025
Description
Radial thermistors are thermally sensitive resistors that change their resistance with temperature variations. They are designed with leads that extend radially from the body of the thermistor, which allows for easy integration into various electronic circuits. These devices are primarily used for precise temperature measurement and control due to their high sensitivity to temperature changes.
Working Principle
Radial thermistors operate based on the principle that their electrical resistance changes with temperature. There are two main types: Negative Temperature Coefficient (NTC) thermistors, where resistance decreases as temperature increases, and Positive Temperature Coefficient (PTC) thermistors, where resistance increases with rising temperature. This predictable change in resistance makes them highly useful for applications requiring precise temperature monitoring and control. Their sensitivity allows them to detect even minimal temperature changes, which is crucial in many industrial and electronic applications.
Applications
Radial thermistors are widely used in precision instrumentation applications such as hand-held meters and temperature gauges. They are also employed in battery pack charging systems and laser drives, where accurate temperature monitoring is essential to ensure optimal performance and safety.
Advantages over other Thermistors
Radial thermistors offer several advantages over other types of thermistors. They are known for their small size and high degree of stability, which makes them suitable for compact and precise applications. Additionally, NTC thermistors, a common type of radial thermistor, are long-lasting and provide very accurate temperature readings, making them a preferred choice in many scenarios.
Limitations
Despite their advantages, radial thermistors have some limitations. They are not suitable for high-temperature applications due to their fragility and limited temperature range. Additionally, their non-linear resistance-temperature relationship can complicate the interpretation of temperature readings without appropriate calibration or compensation.
Considerations
When considering the use of radial thermistors, several factors should be taken into account. They generally have a higher initial cost compared to other temperature sensors, and their design is less rugged, which may affect durability in harsh environments. However, their high accuracy and stability can offset these costs in applications where precision is critical. Maintenance and replacement costs are typically low due to their long-lasting nature, but care must be taken to avoid conditions that could lead to damage, such as exposure to extreme temperatures.
from DigiKey
NTC Thermistor 10k Radial [See More]
- Lead Style: Radial
- Resistance (@25°C): 10000
- Temperature Range: -40 to 200
from Shenzhen Weidy Industrial Development Co., Ltd.
Negative temperature coefficient. Small size, large power and strong. Capability of surge current suppression. Fast response, small remain resistance. Longevity, high reliability. Comply with UL1434. With UL, TUV and CQC certification. Applications: New energy, communications, industrial, power,... [See More]
- Lead Style: Radial
- Resistance (@25°C): 0.5000 to 200
- Temperature Range: -40 to 200
- Width / Diameter: 0.1969 to 0.9843
from DigiKey
NTC Thermistor [See More]
- Lead Style: Radial
- Resistance (@25°C): 2000
- Temperature Range: -55 to 150
from DigiKey
NTC Thermistor 10k Radial [See More]
- Lead Style: Radial
- Resistance (@25°C): 10000
- Temperature Range: -40 to 125
from DigiKey
NTC Thermistor 1.5k Radial [See More]
- Lead Style: Radial
- Resistance (@25°C): 1500
- Temperature Range: -50 to 150
- Beta: 3892
from DigiKey
NTC Thermistor 5k Radial [See More]
- Lead Style: Radial
- Resistance (@25°C): 5000
- Temperature Range: -40 to 125
from DigiKey
NTC Thermistor 10k Radial [See More]
- Lead Style: Radial
- Resistance (@25°C): 10000
- Temperature Range: -40 to 125
from DigiKey
NTC Thermistor 100 Radial [See More]
- Lead Style: Radial
- Resistance (@25°C): 100
- Temperature Range: -50 to 150
- Beta: 3060
from DigiKey
PTC Thermistor 100 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: 25 to 150
from DigiKey
PTC Thermistor 100 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: 25 to 150
from DigiKey
PTC Thermistor 100 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: 25 to 150
from DigiKey
PTC Thermistor 100 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: 25 to 150
from DigiKey
PTC Thermistor 100 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: 25 to 150
from DigiKey
PTC Thermistor 100 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: 25 to 150
from DigiKey
PTC Thermistor 250 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: -20 to 60
from DigiKey
PTC Thermistor 250 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: -20 to 60
from DigiKey
PTC Thermistor 250 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: -20 to 60
from DigiKey
PTC Thermistor 250 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: -20 to 60
from DigiKey
PTC Thermistor 250 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: -20 to 60
from DigiKey
PTC Thermistor 250 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: -20 to 60
from DigiKey
PTC Thermistor 250 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: -20 to 60
from DigiKey
PTC Thermistor 250 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: -20 to 60
from DigiKey
PTC Thermistor 250 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: -20 to 60
from DigiKey
PTC Thermistor 250 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: -20 to 60
from DigiKey
PTC Thermistor 250 Ohms Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: -20 to 60
from DigiKey
PTC Thermistor Radial [See More]
- Lead Style: Radial
- Features: PTC
- Temperature Range: -40 to 170
from Utmel Electronic Limited
EPCOS B59774B0115A070THERMISTOR, PTC, 63V, RADIAL LEADED [See More]
- Lead Style: Radial
- Resistance (@25°C): 1100
- Temperature Range: -40 to 125
- Width / Diameter: 0.4921
from Trigon Components, Inc.
SERIES. JNC. DESCRIPTION. Disc, Temperature Compensation. ZERO POWER RESISTANCE. 3 to 470000ohm. THERMAL DISSIPATION CONSTANT. 8 to 10mw_ °C. THERMAL TIME CONSTANT. 14 to 28sec. PACKAGE. Radial. FEATURE. •Operating Temperature Range: -30~125 °C. •Application: Adaptor, Charger. [See More]
- Lead Style: Radial
- Resistance (@25°C): 3 to 470000
- Temperature Range: -30 to 125
- Thermal Time Constant: 14 to 28
from U.S. Sensor
U.S. Sensor offers a wide selection of NTC thermistors for a variety of applications in industries such as automotive, food handling and processing, telecommunications, medical and scientific research, military/defense, and consumer electronics where accurate temperature measurement and control are... [See More]
- Lead Style: Radial
- Beta: 2930 to 4140
- Resistance (@25°C): 100 to 100000
- Dissipation Constant: 3
from Selco Products Company
Featuring accuracies ranging from ± 0.1 °C to ± 10%. Our CP and CS NTC thermistor series can be customized to meet your exact application requirements for probe housing materials, lead wire gauges, insulation types, and connectors. Selco ’s discrete thermistor family includes... [See More]
- Lead Style: Axial; Leadless; Radial
- Resistance (@25°C): 2252 to 1.00E6
- Temperature Range: -50 to 250
- Package / Electrode Type: Bead; Chip/Surface
from Dexter Magnetic Technologies, Inc.
A thermistor is a type of resistor that differs from standard resistors in that its resistance varies significantly with temperature. Common uses of thermistors are temperature sensors, self-resetting overcurrent protectors and self-regulating heating elements. Material that is typically used in... [See More]
- Lead Style: Radial
- Resistance (@25°C): 0.5000 to 10
- Temperature Range: 149 to 183
- Thermal Time Constant: 14 to 55
from AVX Corporation
NTC Disc. Features & Benefits. Various coating and lead material options. Multiple temperature stability options. Customized solutions. Typical Applications. Commodity Product: 2 families. ND or NE : general purpose. NV : professional. Alarm and temperature measurement application. Temperature... [See More]
- Lead Style: Radial
- Resistance (@25°C): 68 to 1.00E6
- Temperature Range: -55 to 150
- Package / Electrode Type: Bead
from Thermik Corporation
With connector cables. Fully insulated in a screw on housing [See More]
- Lead Style: Radial
- Package / Electrode Type: Chip/Surface
- Temperature Range: 70 to 180
- Coating: Ceramic
from OMEGA Engineering, Inc.
All of OMEGA's Thermistor elements can be supplied with additional lead wire attached to existing leads. Longer leads create more flexibility for use in many applications. The size of the potted junction between lead wire and element is kept as small as possible. Note: These elements are not... [See More]
- Lead Style: Radial
- Resistance (@25°C): 2252 to 30000
- Temperature Range: -79 to 121
- Thermal Time Constant: 1
from Utmel Electronic Limited
Thermistor NTC 1 Ohm 20% 2-Pin Radial 2800K Cardboard T/R [See More]
- Lead Style: Radial
- Resistance (@25°C): 1
- Temperature Range: -55 to 170
from U.S. Sensor
U.S. Sensor offers a wide selection of NTC thermistors for a variety of applications in industries such as automotive, food handling and processing, telecommunications, medical and scientific research, military/defense, and consumer electronics where accurate temperature measurement and control are... [See More]
- Lead Style: Radial
- Beta: 2826 to 4668
- Resistance (@25°C): 100 to 1.00E6
- Package / Electrode Type: Chip/Surface
from Thermik Corporation
With connector cables. Insulation pvdf (kynar ®) [See More]
- Lead Style: Radial
- Package / Electrode Type: Chip/Surface
- Temperature Range: 70 to 180
- Coating: Ceramic
from OMEGA Engineering, Inc.
The HSTH Series Flexible Thermistor Sensors are hermetically sealed at the sensor tip to provide continuous protection from corrosive environments. This unique Thermistor temperature probe design provides a small, flexible, and electrically isolated Thermistor element, suited to a variety of... [See More]
- Lead Style: Radial
- Resistance (@25°C): 2252 to 10000
- Temperature Range: -80 to 150
- Thermal Time Constant: 3.75
from Utmel Electronic Limited
Thermistor NTC 10 Ohm 20% 2-Pin Radial 3060K Cardboard T/R [See More]
- Lead Style: Radial
- Resistance (@25°C): 10
- Temperature Range: -55 to 170
- Width / Diameter: 0.2756
from U.S. Sensor
U.S. Sensor ™s high temperature glass probe thermistors feature superior long-term stability and fast thermal response. Their small size and glass encapsulation makes them especially suitable for temperature measurement and control where space is limited and where extreme temperatures,... [See More]
- Lead Style: Radial
- Beta: 3348 to 4263
- Resistance (@25°C): 1000 to 100000
- Package / Electrode Type: Bead
from Thermik Corporation
With connector cables. Mylar ®-Nomex ® [See More]
- Lead Style: Radial
- Package / Electrode Type: Chip/Surface
- Temperature Range: 70 to 180
- Coating: Ceramic
from OMEGA Engineering, Inc.
For applications requiring thermistors with linear response to temperature change, OMEGA offers linear components. These unique devices consist of a thermistor composite for temperature sensing and an external resistor composite for linearizing. [See More]
- Lead Style: Radial
- Resistance (@25°C): 3200 to 88200
- Temperature Range: -55 to 100
- Thermal Time Constant: 10
from Utmel Electronic Limited
Thermistor NTC 100K Ohm 2% 2-Pin Radial 4190K -5 to -4.5 Bulk [See More]
- Lead Style: Radial
- Resistance (@25°C): 100000
- Temperature Range: -40 to 125
- Length: 0.9449
from U.S. Sensor
U.S. Sensor ™s inrush current limiters (power thermistors) are specially formulated and processed NTC thermistors suitable for suppressing high inrush currents in switching power supplies and other applications where the high initial starting currents are undesirable. Their unique design... [See More]
- Lead Style: Radial
- Package / Electrode Type: Bead
- Resistance (@25°C): 0.7000 to 200
from Thermik Corporation
Where possible, the PTCs are to be inserted parallel to the coil. As a result, when shaping the coil ends, the mechanical stress of the PTCs is minimised. In so doing, the Mylar ®- Nomex ® shrink cap is highly suited to this purpose due to its mechanical stability (no cold flow in... [See More]
- Lead Style: Radial
- Package / Electrode Type: Chip/Surface
- Temperature Range: 60 to 190
- Coating: Ceramic
from OMEGA Engineering, Inc.
Thermistors are manufactured from oxides of nickel, manganese, iron, cobalt, magnesium, titanium and other metals. All are available epoxy encapsulated and color coded, with two 3" leads.Thermistors with 0.2 C interchangeability also are available encased in a 2" long waterproof PFA tube; order by... [See More]
- Lead Style: Radial
- Resistance (@25°C): 2252 to 30000
- Temperature Range: -62 to 150
- Thermal Time Constant: 2.5
from Utmel Electronic Limited
Thermistor NTC 10K Ohm 3% 2-Pin Radial 3950K Bulk [See More]
- Lead Style: Radial
- Temperature Range: -55 to 155
from U.S. Sensor
U.S. Sensor offers a wide selection of NTC thermistors for a variety of applications in industries such as automotive, food handling and processing, telecommunications, medical and scientific research, military/defense, and consumer electronics where accurate temperature measurement and control are... [See More]
- Lead Style: Radial
- Resistance (@25°C): 1000 to 100000
- Temperature Range: -62 to 66
- Beta: 3575 to 4140
from Thermik Corporation
With connector cables. Insulation PTFE [See More]
- Lead Style: Radial
- Package / Electrode Type: Chip/Surface
- Temperature Range: 70 to 180
- Coating: Ceramic
from OMEGA Engineering, Inc.
The OMEGA 55000 Series glass encapsulated thermistors provide a higher temperature alternative to the OMEGA 44000 Series epoxy coated thermistors where needed. With a maximum continuous temperature rating of -80 to 200°C (-112 to 392°F), and intermittent operation to 250°C (482°F), the 55000 Series... [See More]
- Lead Style: Radial
- Resistance (@25°C): 2252 to 10000
- Temperature Range: -80 to 150
- Thermal Time Constant: 15
from Utmel Electronic Limited
Thermistor NTC 15 Ohm 20% 2-Pin Radial 3000K Bulk [See More]
- Lead Style: Radial
- Resistance (@25°C): 15
- Temperature Range: -55 to 170
from U.S. Sensor
U.S. Sensor ™s Laboratory Grade Temperature Probes are manufactured with ultra high stability thermistor elements. This high accuracy probe is provided with a NIST traceable calibration certificate with data points and a Resistance vs. Temperature (R/T) chart in 0.01 °C increments. The... [See More]
- Lead Style: Radial
- Resistance (@25°C): 10000 to 100000
- Temperature Range: -29 to 41
- Package / Electrode Type: Bead
from Thermik Corporation
Where possible, the PTCs are to be inserted parallel to the coil. As a result, when shaping the coil ends, the mechanical stress of the PTCs is minimised. In so doing, the Mylar ®- Nomex ® shrink cap is highly suited to this purpose due to its mechanical stability (no cold flow in... [See More]
- Lead Style: Radial
- Package / Electrode Type: Chip/Surface
- Temperature Range: 60 to 190
- Coating: Ceramic
from Utmel Electronic Limited
Thermistor NTC 15 Ohm 20% 2-Pin Radial 3165K Bulk [See More]
- Lead Style: Radial
- Resistance (@25°C): 15
- Temperature Range: -55 to 170
- Width / Diameter: 0.2756
from Utmel Electronic Limited
Thermistor NTC 15K Ohm 5% 2-Pin Radial 4100K >= -3.5 Bulk [See More]
- Lead Style: Radial
- Temperature Range: -40 to 125
from Utmel Electronic Limited
Thermistor NTC 47K Ohm 5% 2-Pin Radial 4090K -4.5 to -4 T/R [See More]
- Lead Style: Radial
- Length: 0.1299
- Temperature Range: -40 to 125
from Utmel Electronic Limited
Thermistor NTC 80 Ohm 20% 2-Pin Radial 3300K Bulk [See More]
- Lead Style: Radial
- Resistance (@25°C): 80
- Temperature Range: -55 to 170
from Utmel Electronic Limited
THERMISTOR PTC 1K OHM 1% RADIAL [See More]
- Lead Style: Radial
- Resistance (@25°C): 1000
- Temperature Range: -55 to 70
- Length: 0.1378
from Utmel Electronic Limited
Thermistor PTC 330 Ohm 2-Pin Screw Mount Radial [See More]
- Lead Style: Radial
- Resistance (@25°C): 330
- Temperature Range: -10 to 110
- Length: 0.2953
from Utmel Electronic Limited
Thermistor PTC 9.4 Ohm 25% 2-Pin Radial Cardboard Strip [See More]
- Lead Style: Radial
- Temperature Range: -40 to 125
from Utmel Electronic Limited
Thermistor;ICL;NTC;Res 10 Ohms;Tol 25%;Radial;Disc;Cur-Rtg 3.2 A;Dia-Max 0.4 In [See More]
- Lead Style: Radial
- Resistance (@25°C): 10
- Temperature Range: -50 to 175
- Width / Diameter: 0.1701