Honeywell 135-202FAG-J02 Temperature Sensor: Understanding This Compact NTC Thermistor
The Honeywell 135-202FAG-J02 temperature sensor is a discrete NTC thermistor developed for reliable temperature detection in electronic and industrial systems. As a Honeywell 135-202FAG-J02 thermistor, it is especially relevant in applications that need a compact sensor with dependable thermal response, robust construction, and easy integration into through-hole circuit designs.
What Type of Product Is the Honeywell 135-202FAG-J02?
The Honeywell 135-202FAG-J02 product type is an axial lead, glass-encapsulated NTC thermistor from the Honeywell 135 Series. This series is recognized for combining compact size with strong environmental resistance. The glass-sealed body helps protect the sensor element, while the axial leads support conventional mounting and assembly methods.
Technical Highlights of the Honeywell 135-202FAG-J02
The Honeywell 135-202FAG-J02 NTC thermistor has a nominal resistance of 2 kOhm at 25°C and a B25/85 value of 3468 K. It is supplied in a DO-35 / DO-204AH style axial package for through-hole mounting. Like other members of the 135 Series, it is designed for wide-temperature operation and can be used in systems where consistent thermal behavior is essential.
Because this is an NTC device, the Honeywell 135-202FAG-J02 temperature sensor reduces resistance as ambient or monitored temperature increases. That behavior makes it highly useful for temperature measurement, circuit compensation, over-temperature monitoring, and control loops that depend on quick, analog thermal feedback.
Typical Use Cases
The Honeywell 135-202FAG-J02 temperature sensing thermistor can be used in power supplies, battery packs, instrumentation boards, appliance controls, industrial monitoring equipment, and embedded electronics. In many of these systems, the aim is not simply to detect heat, but to translate changing thermal conditions into a predictable electrical response.
A key advantage of the Honeywell 135-202FAG-J02 thermistor sensor is that it supports applications where engineers need proven component behavior in a traditional package style. Through-hole thermistors remain valuable in control boards, repairable equipment, and assemblies where mechanical retention matters as much as sensing performance.
Why Engineers Still Search for This Part
The popularity of search phrases such as Honeywell 135-202FAG-J02 temperature sensor, Honeywell 135-202FAG-J02 thermistor, and Honeywell 135-202FAG-J02 NTC thermistor reflects continued demand for stable, field-proven thermal components. Rather than relying on abstract digital sensing alone, many designers still choose analog thermistors for their simplicity, responsiveness, and easy integration into established circuit architectures.
For more information about Honeywell, reviewing related Honeywell sensing solutions can help place this component within broader industrial and electronic temperature measurement strategies.
FAQ
What is the 135-202FAG-J02 used for?
The Honeywell 135-202FAG-J02 is used for temperature sensing, thermal compensation, and monitoring functions in electronic systems. It can support industrial controls, appliances, instrumentation, and embedded circuit designs that need a reliable analog temperature input.
Is the Honeywell 135-202FAG-J02 a thermistor or a probe?
It is a discrete NTC thermistor, not a complete probe assembly. That means it is a component-level temperature sensor intended to be integrated directly into a board or system by the equipment designer.
What does 2 kOhm at 25°C mean for the 135-202FAG-J02?
It means the device has a nominal resistance of 2,000 ohms when the thermistor is at 25°C. This reference point helps engineers model how resistance changes across the operating temperature range and how the component should be used in their circuit.
Why is the glass-encapsulated design important?
Glass encapsulation helps protect the sensing element from environmental stress such as moisture and contamination. That improves long-term stability and makes the component more suitable for applications where reliability matters over time.
Can the 135-202FAG-J02 be used in high-temperature environments?
Yes. The Honeywell 135 Series is designed for a wide operating temperature range, which is one reason these thermistors are often selected for demanding industrial and control-related applications.