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T300 Series NTC Thermistors, Encapsulation Insulated Leads
The T300 Series encapsulated NTC thermistors are ready for use in applications where long lead lengths, small size, and/or consistency of tip size is important. The T300 Series is an alternative to dipped epoxy coatings where coating diameter and coating length will have greater variations. A similar thermistor with an epoxy dip coating would be approximately 0.015 in to 0.020 in greater in diameter.

•Twenty-five basic styles
•Insulated leads
•Twisted pair, parallel bonded pair, triplet [6k/30k composite] lead configurations
•Standard overall lengths 3 in [76.2 mm] to 36 in [914.4 mm]
•Encapsulated in small tube or cup
•Typical R25 values range from 2,252 Ω to 100,000 Ω
•6K/30K composites available
•Noted for their consistency in shape and size
•Available in point matched and interchangeable tolerances
•Custom and semi-custom products may be specified

T300 Series Thermistor Part Number Legend
Point-Matched / Interchangeable Tolerance


StyleLead TypeLength
in [mm]		Encapsulation
T301 28 AWG Solid silver-plated copper24.0 [609.6]Vinyl Cup
T302 28 AWG Solid silver-plated copper30.0 [762.0]Vinyl Cup
T303 28 AWG Solid silver-plated copper36.0 [914.4]Vinyl Cup
T311 30 AWG Solid silver-plated copper24.0 [609.6]Vinyl Cup
T312 30 AWG Solid silver-plated copper30.0 [762.0]Vinyl Cup
T313 30 AWG Solid silver-plated copper36.0 [914.4]Vinyl Cup
T321 38 AWG Solid nickel3.0 [76.2]Polyimide tube
T322 38 AWG Solid nickel6.0 [152.4]Polyimide tube
T324 38 AWG Solid nickel12.0 [304.8]Polyimide tube
T331 32 AWG Solid copper6.0 [152.4]Polyimide tube
T332 32 AWG Solid copper3.0 [76.2]Polyimide tube
T333 32 AWG Solid copper24.0 [609.6]Polyimide tube
T334 32 AWG Solid copper30.0 [762.0]Polyimide tube
T335 32 AWG Solid copper36.0 [914.4]Polyimide tube
T337 32 AWG Solid copper6.0 [152.4]Polyimide tube
T338 32 AWG Solid copper30.0 [762.0]Polyimide tube
T341 38 AWG Solid nickel6.0 [152.4]Polyimide tube
T342 38 AWG Solid nickel3.0 [76.2]Polyimide tube
T351 38 AWG Solid nickel6.0 [152.4]Polyimide tube
T352 38 AWG Solid nickel3.0 [76.2]Polyimide tube
T371 32 AWG Solid copper6.0 [152.4]Polyimide tube
T372 32 AWG Solid copper24.0 [609.6]Polyimide tube
T373 32 AWG Solid copper36.0 [914.4]Polyimide tube
T381 30 AWG Solid tin-plated copper60.0 [1,524.0]Vinyl Cup
T382 28 AWG Solid tin-plated copper60.0 [1,524.0]Vinyl Cup