Honeywell 121-104KAH-Q01 Temperature Sensor Overview
The Honeywell 121-104KAH-Q01 temperature sensor is a 100 kOhm glass probe NTC thermistor designed for accurate temperature detection in technical environments. It belongs to Honeywell’s rugged 121 Series and is often researched by engineers who need a clearly defined thermistor probe with dependable thermal behavior. Searches for the Honeywell 121-104KAH-Q01 temperature sensor usually reflect a need for verified specifications, not generic product descriptions, especially in industrial, instrumentation, and embedded monitoring projects.
Technical Characteristics of Honeywell 121-104KAH-Q01
The Honeywell 121-104KAH-Q01 NTC thermistor provides a nominal resistance of 100 kOhm at 25°C and is specified with a B0/50 value of 4118 K. It is supplied in a cylindrical glass probe body with free-hanging mounting and lead wires around 50.8 mm long. Its operating range extends from -60°C to 300°C, which supports use in demanding thermal conditions where standard sensing parts may not be sufficient.
For designers, the combination of 100 kOhm nominal resistance and defined B-value gives the Honeywell 121-104KAH-Q01 temperature sensor a clear technical identity. That matters when calculating temperature response, choosing interface circuitry, and aligning sensor behavior with control logic or monitoring software.
Application Areas for Honeywell 121-104KAH-Q01
This Honeywell thermistor probe is relevant for industrial electronics, environmental sensing, process monitoring, thermal compensation networks, and embedded systems where stable resistance-based temperature measurement is required. It is also a useful reference in maintenance and replacement scenarios, especially when engineers need to compare thermal curves rather than rely on nominal resistance alone.
The glass probe structure supports durability and protects the sensing element, which is one reason the Honeywell 121-104KAH-Q01 temperature sensor is often preferred in technically sensitive applications. It offers a more application-ready form factor than a bare thermistor element and can be easier to integrate into structured assemblies.
Why This Honeywell Temperature Sensor Matters in Search
Common search phrases include Honeywell 121-104KAH-Q01 temperature sensor, Honeywell 121-104KAH-Q01 NTC thermistor, and Honeywell 121-104KAH-Q01 thermistor probe. These are high-intent searches from users who need electrical clarity, family-level compatibility, and reliable information for sourcing or engineering review.
For more information about Honeywell, reviewing related Honeywell sensing solutions can help clarify whether this 100 kOhm variant is the best match for a given temperature measurement strategy.
FAQ
What is the Honeywell 121-104KAH-Q01 used for?
The Honeywell 121-104KAH-Q01 is used for temperature sensing in industrial, electronic, and monitoring systems that rely on NTC resistance behavior to determine thermal conditions.
Why is the B0/50 value important for 121-104KAH-Q01?
The B0/50 value describes part of the thermistor’s temperature-resistance relationship. It helps engineers estimate how the sensor will respond across temperature changes and supports more accurate circuit modeling.
Is the 121-104KAH-Q01 suitable for harsh environments?
Its glass probe construction and broad operating range make it suitable for many demanding environments, especially where durability and thermal stability are important design priorities.
How is the 121-104KAH-Q01 different from other 100 kOhm thermistors?
What sets it apart is the combination of Honeywell 121 Series construction, probe-style packaging, and a documented thermal characteristic profile. For many technical users, those details are more valuable than nominal resistance alone.
When should someone choose the 121-104KAH-Q01 temperature sensor?
This part is worth considering when a project requires a 100 kOhm Honeywell thermistor probe with a defined thermal curve, compact glass probe structure, and a recognized manufacturer profile for technical validation.