Thermometrics NTC Thermistors

Application

Type P20 / P25 / P30:

The longer body length makes them particularly well-suited for applications where fast response and immersion in fluids are the major requirements.

Type P60 / P65 / P85 / P100:

General purpose applications involving temperature measurement and control, circuit temperature compensation, liquid level sensing or fluid flow sensing.

Features

Type P20 / P25 / P30:

High reliability
Ease of handling
Fast response time
Longer body length

Type P60 / P65 / P85 / P100:

Low cost
General purpose
Reliable
Long-term stability

Specifications: P20 / P25 / P30

Parameter		P20	P25	P30
Thermal Time Constant	Still Air at 77°F (25°C)	1.6 sec	2.0 sec	3.0 sec
Thermal Time Constant	Plunge into Water	18 msec	23 msec	60 msec
Dissipation Constant	Still Air at 77°F (25°C)	0.14 mW/°C	0.16 mW/°C	0.30 mW/°C
Dissipation Constant	Still Water at 77°F (25°C)	0.70 mW/°C	0.80 mW/°C	1.50 mW/°C
Power Rating (in Air)	Max Power Rating	0.020 Watts	0.025 Watts	0.035 Watts
	100% Max Power to	302°F (150°C)	302°F (150°C)	302°F (150°C)
	Derated to 0% at	572°F (300°C)	572°F (300°C)	572°F (300°C)

Specifications: P60 / P65 / P85 / P100

Parameter		P60	P65	P85	P100
Thermal Time Constant	Still Air at 77°F (25°C)	12 sec	13 sec	16 sec	22 sec
Thermal Time Constant	Plunge into Water	300 msec	320 msec	400 msec	600 msec
Dissipation Constant	Still Air at 77°F (25°C)	0.60 mW/°C	0.65 mW/°C	0.85 mW/°C	1.00 mW/°C
Dissipation Constant	Still Water at 77°F (25°C)	3.00 mW/°C	3.30 mW/°C	4.00 mW/°C	5.00 mW/°C
Power Rating (in Air)	Max Power Rating	0.060 Watts	0.065 Watts	0.085 Watts	0.100 Watts
	100% Max Power to	392°F (200°C)	392°F (200°C)	392°F (200°C)	392°F (200°C)
	Derated to 0% at	572°F (300°C)	572°F (300°C)	572°F (300°C)	572°F (300°C)