U.S. Sensor's standard precision interchangeable thermistors are low cost, highly accurate, stable devices designed specifically for temperature sensing and control applications. They are particularly suited for uses where their precision interchangeability eliminates the necessity for costly individual circuit calibration.

Features
•	High accuracy	•	Epoxy encapsulated
•	Fast thermal response	•	High stability
•	Low cost	•	Long life
•	Small size	•	R/T Curve-matched
				"PS" & "PT" Series
Options
•	Special lead materials and lengths
•	Special encapsulants or probe housings
•	Non-standard resistance values and tolerances

Specifications				"KS" & "KT" Series  View Photo
•	Thermal time constant: 1 second max. in a well stirred oil bath, 10 seconds max. in still air
•	Dissipation constant: 1 mW/°C
•	Maximum power rating: 30 mW at 25°C derated to 1 mW at 125°C
•	Interchangeability tolerance of ±0.1°C or ±0.2°C from 0-70°C
•	Operating temperature: PS and PT series -80°C to +150°C, KS and KT series -80°C to +135°C

•	Storage and operation temperatures for best long term stability: KT and PT series = -80° to +120°C, KS and PS series = -80° to +75°C

STANDARD PRECISION INTERCHANGEABLE THERMISTORS (150°C) ± 0.1°C Accuracy - Bare Leads Part Number (±0.1°C 0-70°C ) Resistance Ohms@ 25°C R-T Curve Beta (K) 0-50°C View R-T Chart PS102J2* 1000 J 3890 PS222J2 2252 J 3890 PS302J2 3000 J 3890 PS502J2 5000 J 3890 PS602J2 6000 J 3890 PS103G2 10000 G 3575 PS103J2 10000 J 3890 PS203J2 20000 J 3890 PS303J2 30000 J 3890 PS503J2 50000 J 3890 PS503R2 50000 R 4140 PS104J2 100000 J 3892 PS104R2 100000 R 4140 * 0.125" maximum diameter over epoxy coating STANDARD PRECISION INTERCHANGEABLE THERMISTORS (150°C) ± 0.2°C Accuracy- Bare Leads Part Number (±0.2°C 0-70°C ) Resistance Ohms@ 25°C R-T Curve Beta (K) 0-50°C View R-T Chart PT102J2* 1000 J 3890 PT222J2 2252 J 3890 PT302J2 3000 J 3890 PT502J2 5000 J 3890 PT602J2 6000 J 3890 PT103G2 10000 G 3575 PT103J2 10000 J 3890 PT203J2 20000 J 3890 PT303J2 30000 J 3890 PT503J2 50000 J 3890 PT503R2 50000 R 4140 PT104J2 100000 J 3892 PT104R2 100000 R 4140 * 0.125" maximum diameter over epoxy coating STANDARD PRECISION INTERCHANGEABLE THERMISTORS (135°C) ± 0.1°C Accuracy - Insulated Leads Part Number (±0.1°C 0-70°C ) Resistance Ohms@ 25°C R-T Curve Beta (K) 0-50°C View R-T Chart KS102J2* 1000 J 3890 KS222J2 2252 J 3890 KS302J2 3000 J 3890 KS502J2 5000 J 3890 KS602J2 6000 J 3890 KS103G2 10000 G 3575 KS103J2 10000 J 3890 KS203J2 20000 J 3890 KS303J2 30000 J 3890 KS503J2 50000 J 3890 KS503R2 50000 R 4140 KS104R2 100000 R 4140 * 0.125" maximum diameter over epoxy coating STANDARD PRECISION INTERCHANGEABLE THERMISTORS (135°C) ± 0.2°C Accuracy - Insulated Leads Part Number (±0.2°C 0-70°C ) Resistance Ohms@ 25°C R-T Curve Beta (K) 0-50°C View R-T Chart KT102J2* 1000 J 3890 KT222J2 2252 J 3890 KT302J2 3000 J 3890 KT502J2 5000 J 3890 KT602J2 6000 J 3890 KT103G2 10000 G 3575 KT103J2 10000 J 3890 KT203J2 20000 J 3890 KT303J2 30000 J 3890 KT503J2 50000 J 3890 KT503R2 50000 R 4140 KT104R2 100000 R 4140 * 0.125" maximum diameter over epoxy coating