NTC thermistors produced by Spectrum Sensors & Controls include standard disc, glass encapsulated, surge current limiter, coated chip, and radial lead glass encapsulated styles. The standard thermistors are available as coated or uncoated types, while glass encapsulated thermistors feature high temperature operation up to 300C. The coated chip models feature -50C to 150C operation and fast response time. Radial lead thermistors are used in high humidity and rapid thermal cycling environments.

Selco Products Co. develops NTC thermistors including diode, thin film, surface mount, custom, interchangeable, bare lead, insulated lead, small, miniature, micro, special SMT, point matched, and TR types. Depending on model, the thermistors feature accuracies from 0.1C to 10 percent.

U.S. Sensor Corp. manufactures leaded NTC thermistors, surface mount NTC thermistors, UL recognized NTC thermistors, calibrated NTC thermistor probes, and inrush current limiting power thermistors. The company's precision leaded thermistors are available with accuracies of 0.05C, 0.1C, 0.2C, or 1C; and as glass encapsulated, epoxy coated, and miniature versions.

Western Electronic Components manufactures a number of NTC thermistor types including thick film surface mount, solid body surface mount, chip, interchangeable, probes and assemblies, pipe sensor probes, glass encapsulated, and inrush current limiters. The various NTC thermistors are used for temperature measurement and control, temperature compensation, and temperature sensing applications.

Measurement Specialties offers leadless chip, SMD, encapsulated with lead, and space qualified NTC thermistor types. The space qualified thermistors feature resistance at 25C of  1K to 100K, with tolerance of 0 to 100 degrees. The leadless chip thermistors are used for wire-bond applications and have a beta value of 3108 to 4582. The SMD thermistors are used for automated board mount applications.

Sensor Scientific distributes a line of NTC thermistors that includes epoxy-coated chip, interchangeable chip, glass probe, glass encapsulated, standard bead, small bead, insulated lead interchangeable chip, and insulated lead epoxy-coated chip types.

GE Sensing & Inspection Technologies designs SMD NTC thermistors, radial lead NTC thermistors, hermetically-sealed glass thermistors, epoxy coated NTC thermistors, and NTC thermistor assemblies. The SMD thermistors are available in 0402, 0603, 0805, and 1206 sizes, while the glass thermistors are used for applications above 150C. The epoxy thermistors are used for applications at temperatures below 150C.

RTI Electronics Inc.'s line of NTC thermistors includes disc and chip thermistors, precision thermistors, miniature thermistors, and surface mount NTC thermistor. The disc and chip thermistors feature resistance values ranging from 1 ohm to 500,000 ohms, while the precision thermistors provide accurate temperature measurement to plus or minus 0.2C. The miniature thermistors are hermetically sealed and glass encapsulated, and the surface mount thermistors feature standard values from 250 ohms to 150,000 ohms.

Panasonic Co. designs and manufactures multi-layer chip NTC thermistors with an operating range of -40C to 125C. Featuring excellent heat resistance to reflow soldering, the thermistor features a monolithic structure, and is available in surface mount and leaded packages.

Quality Thermistor Inc.'s line of NTC thermistor probes include surface temperature probes, gas or air temperature probes, and liquid temperature probes. The surface temperature probes are available as package precision, precision hex nut, large ring lug precision, large flat disk precision, small ring lug precision, vinyl insulated ring lug precision, small flat disk precision, precision flat lug, precision rivet, and precision hydroguard pipe mount types.

Cantherm distributes thermal NTC thermistors, temperature compensation NTC thermistors, high precision NTC thermistors encased in glass, NTC thermistors for temperature measurement, and glass shell precision thermistors manufactured by Digi-Key.

Vishay Intertechnology offers a number of NTC thermistors that feature resistance at 25C ranging from 2K to 100K. With maximum operating temperatures of 60 to 150C, the thermistors are available as radial leaded and coated, refrigerator, flex foil, steel capped, long immersion, mini lug, screw threaded, standard lug, ice cube, radial leaded, 2-point mini chip, glass protected, 2-point micro chip, and special long lead sensor types.

Murata manufactures NTC thermistors used for inrush current protection and temperature compensation within electronic equipment and automotive applications.