Honeywell 112-205PAJ-B01 Temp Sensing Overview
The Honeywell 112-205PAJ-B01 temp sensing thermistor is a discrete NTC temperature sensing component built for reliable measurement in demanding thermal environments. As a Honeywell 112-205PAJ-B01 temperature sensor, this model is recognized for its glass bead construction, stable resistance behavior, and suitability for precision-oriented sensing circuits where repeatability matters. It is commonly evaluated by engineers looking for a compact Honeywell thermistor that performs well across a wide operating window.
What Makes the Honeywell 112-205PAJ-B01 Temp Sensing Element Distinct
This part belongs to Honeywell’s 112 Series of thermistors, a family known for hermetically sealed glass bead construction. That sealing approach helps protect the sensing element from moisture, contamination, and harsh ambient conditions. In practical system design, that matters because temperature drift, corrosion, and long-term instability can compromise control accuracy over time. The Honeywell 112-205PAJ-B01 temp sensing element is especially relevant in applications where design teams want a compact sensor with dependable thermal response and strong long-term durability.
A key point for this model is its high nominal resistance at 25°C, which makes it useful in circuits that require strong temperature sensitivity at lower current levels. Because it is an NTC thermistor, resistance decreases as temperature increases. That behavior is valuable in temperature monitoring, compensation networks, thermal management circuits, laboratory instruments, industrial electronics, and specialized control assemblies.
Common Use Cases
The Honeywell 112-205PAJ-B01 temperature sensor thermistor can be a strong fit for industrial measurement equipment, thermal compensation boards, aerospace-adjacent designs, medical instrumentation, and high-temperature assemblies where sensor stability is more important than low initial cost. Engineers often choose a glass bead thermistor when they need rapid thermal response, small size, and consistent performance under repeated thermal cycling.
Another practical advantage is integration flexibility. Since this is a discrete sensing element rather than a bulky packaged probe, it can be incorporated into custom assemblies where the thermal contact point must be tightly controlled. For design teams building compact electronics, that can simplify thermal mapping and improve placement options inside constrained enclosures.
FAQ
What type of sensor is the Honeywell 112-205PAJ-B01?
It is an NTC thermistor, which means its resistance decreases as temperature rises. This makes it suitable for temperature sensing, compensation, and control functions.
Why is glass bead construction important?
Glass bead sealing improves environmental resistance and long-term stability. It helps protect the sensing element against moisture and contamination, which supports reliable measurements over time.
Where is the Honeywell 112-205PAJ-B01 temp sensing part typically used?
It is commonly considered for industrial electronics, control systems, measurement devices, and custom thermal assemblies where compact size and stable temperature response are priorities.
Is this part suitable for demanding thermal environments?
Yes. The 112 Series is widely associated with broad operating temperature capability and stable behavior in applications that require dependable thermal sensing across changing conditions.
For more information about Honeywell, it is worth reviewing related sensor families and compatible thermal sensing solutions before final component selection.