Honeywell 135-105QAF-J01 Thermistor Sensor Guide
The Honeywell 135-105QAF-J01 thermistor sensor is a specialized NTC temperature sensing component designed for applications that require a high nominal resistance and reliable thermal behavior. As part of Honeywell’s 135 Series, it is built for engineers who need a durable, glass-encapsulated axial device that can support long-term temperature monitoring in demanding environments.
Key Profile of the Honeywell 135-105QAF-J01
The Honeywell 135-105QAF-J01 temperature sensor offers a nominal resistance of 1 MOhm at 25°C with a ±5% resistance tolerance. It also carries a B25/85 value of 4261K, which is highly relevant when engineers evaluate thermistor sensitivity and curve behavior across a practical temperature range. These details make the part meaningful for designs where accurate response modeling is important.
Its DO-35 axial construction supports through-hole mounting, while the broader 135 Series design brings the advantages of hermetic glass encapsulation and rugged lead structure. In applications where environmental reliability matters, those physical attributes can be just as significant as the resistance specification itself.
Where the Honeywell 135-105QAF-J01 Fits Best
The Honeywell 135-105QAF-J01 thermistor can be considered for industrial equipment, analytical instruments, thermal compensation networks, high-impedance sensing circuits, laboratory hardware, and advanced control electronics. A 1 MOhm thermistor may be particularly relevant where designers need greater resistance at room temperature for a given measurement architecture or bias network.
Because this is a Honeywell 135-105QAF-J01 temperature sensor, it also aligns with broader Honeywell sensing expectations around consistency, component quality, and established engineering use in temperature-sensitive electronics.
Design Considerations
When integrating the Honeywell 135-105QAF-J01 NTC thermistor, teams often review ADC input behavior, divider network design, expected thermal range, and firmware compensation methods. The sensor’s nominal 1 MOhm value can influence noise sensitivity, response calculations, and resistor pairing decisions, so system-level planning remains important.
For broader brand and product family context, more information about Honeywell can help when comparing related temperature sensing components.
FAQ
What type of product is the Honeywell 135-105QAF-J01?
It is an NTC thermistor used for temperature sensing and temperature-dependent resistance measurement in electronic systems.
What does the 1 MOhm rating mean?
It means the sensor has a nominal resistance of 1 megaohm at 25°C, which can make it useful in circuits designed around high-resistance temperature measurement.
Why is the B25/85 value important?
The B25/85 value helps engineers understand how the thermistor’s resistance changes with temperature, which is essential for modeling and calibration.
Is the Honeywell 135-105QAF-J01 suitable for wide temperature ranges?
Yes, the 135 Series is designed for broad operating conditions, which supports its use in demanding thermal monitoring applications.
What industries may use this Honeywell thermistor sensor?
It may be used in industrial electronics, instrumentation, laboratory systems, appliance controls, and embedded products that need precise thermal feedback.
What should be checked before selecting this part?
Engineers should review nominal resistance, tolerance, beta value, package style, mounting format, operating range, and compatibility with the target signal chain.