Honeywell 135-503LAG-J01 Temperature Sensor Guide
The Honeywell 135-503LAG-J01 temperature sensor is a glass-encapsulated NTC thermistor designed for accurate temperature measurement in demanding electronic and industrial environments. Because it uses negative temperature coefficient technology, its resistance decreases as temperature rises, making it a practical choice for temperature compensation, monitoring, and control circuits.
What Is the Honeywell 135-503LAG-J01?
The Honeywell 135-503LAG-J01 thermistor belongs to Honeywell’s 135 Series. This family is known for hermetically sealed glass construction, axial leads, and dependable performance across a wide thermal range. In this version, the nominal resistance is 50 kOhm at 25°C, and the device is commonly referenced as a Honeywell 135-503LAG-J01 temperature sensor or Honeywell 135-503LAG-J01 NTC thermistor.
Key Technical Characteristics
This part features a DO-35 axial package that supports through-hole mounting and straightforward integration into compact boards. Its broad operating range makes it useful where heat exposure is significant, while the glass-encapsulated body helps protect the sensing element from moisture and contamination. For engineers comparing thermal sensing components, the Honeywell 135-503LAG-J01 temperature sensor stands out for stable response, rugged packaging, and consistent thermal behavior.
Common Application Areas
This Honeywell temperature sensor is often used in industrial controls, power supplies, battery monitoring, HVAC electronics, instrumentation, and thermal compensation networks. It is also suitable for designs where designers need a small axial thermistor that can tolerate harsh temperature conditions without sacrificing repeatability.
Why Package Style Matters
The axial lead format helps during assembly and replacement, especially in legacy boards or mixed-technology designs. Engineers also value glass-sealed thermistors when long-term reliability matters, because encapsulation improves resistance to environmental stress and supports dependable readings over time.
For more information about Honeywell, you can review the broader product range and related sensing solutions.
FAQ
What type of sensor is the Honeywell 135-503LAG-J01?
It is an NTC thermistor, which means resistance drops as temperature increases. This behavior is widely used for sensing, compensation, and thermal protection tasks.
Where is the Honeywell 135-503LAG-J01 temperature sensor typically used?
It is commonly used in industrial electronics, control boards, HVAC assemblies, instrumentation, and circuit designs that need reliable temperature feedback in a compact through-hole component.
Why do engineers choose a glass-encapsulated thermistor?
Glass encapsulation improves durability and environmental resistance. It helps protect the sensing element against humidity, contamination, and mechanical stress, which supports long-term stability.
Is the Honeywell 135-503LAG-J01 suitable for high-temperature environments?
Yes. One of its advantages is the wide operating temperature range, making it appropriate for applications where standard thermistors may not be sufficient.
What makes the Honeywell 135-503LAG-J01 different from other temperature sensors?
Its combination of 50 kOhm nominal resistance, axial DO-35 construction, broad temperature capability, and robust Honeywell 135 Series design makes it a strong option for precise temperature measurement in compact electronic assemblies.