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Quality Thermistor, Inc - Manufacturer of temperature and thermistor products

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New Products

IP68 Waterproof Temperature Sensors  QTI’s Hydroguard IP68 Series of parts combines a highly stable precision thermistor encapsulated with an extremely durable waterproof housing. The temperature sensor offers excellent performance during harsh freeze thaw cycles. The over molded probes are a great solution where waterproof and moisture resistance is critical. For more details click here
DIRECTEMP°™ Probe USB Thermometer QTI just developed a precision temperature sensor that is combined with a simple USB device to stream real-time temperature data.
The DIRECTEMP°™ device comes with software or you can stream data for use in your own application through LabView, Linux or a variety of other programs.
Probes are calibrated in QTI’s metrology laboratory and can be recalibrated and returned to service for extended life. The absolute accuracy and repeatable precision of the DIRECTEMP°™ USB powered temperature system will become invaluable to your most critical application. For Information click here


S-311-P-827 NASA Goddard Space Flight CenterS-311-P-827,Thermistor, (Thermally Sensitive Resistor) Goddard Space Flight Center (GSFC) has recently prepared a new Qualified Parts List Directory (QPLD) for procurement of products governed by the NASA/GSFC specifications. These specifications are prepared whenever a part for space cannot be procured from military or other government-controlled specifications. Listing of products in this QPLD is contingent on satisfying the stringent qualification requirements in the latest issue of the specification. QTI is please to offer a selection of 0805 and wire bondable part style in both PTC and NTC thermistors.

RTD in T0220 package QTI has just released an RTD element in a T0220 package style. Our new RTD product is available as either a 100 or a 1k ohm package. The tolerances can be Class B or Class 2B. Check back soon for our new RTD section on our website. We will be featuring a variety of lead extensions to help design engineers with their higher temperature applications. For Information click here

New RoHS compliant miniature thermistors are ideal for measuring temperature in confined areas. The new Micro Tube thermistor is an epoxy filled polyimide tube. The low thermal mass of the temperature sensor allows for a very fast thermal time response. The tube size of 0.020” maximum OD, allows for use in biomedical and instrumentation applications, the sensor can be used inside the body via a catheter. Click here to learn more.


New Whitepapers

Wire Bonding Guide
Need help wire bonding to a thermistor? QTI’s engineering team has put together a how to guide that will give you some information. If you need further assistance, please feel free to call or click the chat button.

Handling and Soldering Thermistors
Electronic ceramics can be challenging to handle to to their fragile nature. QTI’s engineering team has put together a how to guide that will give you some information. If you need further assistance, please feel free to call or click the chat button.

Air/gas flow measurement using NTC Thermistors
Measurement of air or gas flow with NTC thermistors can be implemented relatively easily using the following approach. This method utilizes a self heated thermistor to monitor the heat dissipation capacity of a gas in a manner similar to a hot wire anemometer, and a second thermistor is employed to compensate for any variation in temperature of the gas stream.

Typical Wire Insulation Properties
This reference sheet gives electrical, mechanical and chemical resistance information for a wide variety of wire types.

Wire Gauge Information
Use this new reference sheet for information on wire gauge dimension and resistance per foot as well as decimal to fraction equivalents and standard ring lug dimensions.


New Representatives

South America
QTI is pleased to announce our new factory representative for South American countries. Felipe Bahamondes S.A. was founded in January 1986. In our beginnings we served mainly the fresh fruit industry and became known as ATS – AGRO. We designed and implemented the first software for supervision and monitoring of fumigation processes of fresh fruit requiring quarantine treatments with methyl bromide gas.

Michigan, Indiana, Ohio and Kentucky
QTI is pleased to announce our new factory representative for Michigan, Indiana, Ohio and Kentucky. Haynes and Associates offers state of the art technological solutions for the Telecommunication , Wireless , Computer , HVAC , Appliance , Aviation , Medical , Lighting , Military and Automotive Industries.

Delaware & New Jersey
QTI is pleased to announce our new factory representative for Delaware & New Jersey. Analectro, Inc. has bases in Northern NJ and Central Va. supporting their main operation in the Philadelphia area. The Analectro organization has been bringing the latest in sensor and instrumentation technology to the market place that it services since 1984.

 

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