2

SP60/65/85/100 Specifications

NTC Type SP60/65/85/100 dimensions

Thermal and Electrical Properties

The following table lists the thermal and electrical

properties for all ultra-stable probe thermistors.

All definitions and test methods are per MIL-

PRF-23648

Table A

Thermistor Type

SP60

SP65

SP85

SP100

Body Dimensions

Max. Diameter

.060 in (1.5 mm)

.065 in (1.6 mm)

.085 in (2.1 mm)

.100 in (2.5 mm)

Standard Lengths

Code “A”

.125 in (3.2 mm)

.125 in (3.2 mm)

.125 in (3.2 mm)

.125 in (3.2 mm)

Code “B”

.250 in (6.3 mm)

.250 in (6.3 mm)

.250 in (6.3 mm)

.250 in (6.3 mm)

Code “D”

.500 in (12.7 mm)

.500 in (12.7 mm)

.500 in (12.7 mm)

.500 in (12.7 mm)

Lead-wires

Nominal Diameter

.008 in (.20 mm)

.008 in (.20 mm)

.012 in (.30 mm)

.012 in (.30 mm)

Minimum Lead Length

.875 in (22 mm)

.875 in (22 mm)

.875 in (22 mm)

.875 in (22 mm)

Lead Material

Class “A” 200°F (105°C)

Tinned Dumet

Tinned Dumet

Tinned Dumet

Tinned Dumet

Class “B” 392°F (200°C)

Platinum Alloy

Platinum Alloy

Platinum Alloy

Platinum Alloy

Class “C” 572°F (300°C)

Platinum Alloy

Platinum Alloy

Platinum Alloy

Platinum Alloy

Thermal Time Constant

Still Air at 77°F (25°C)

12 sec

13 sec

16 sec

22 sec

Plunge into Water

300 msec

320 msec

400 msec

600 msec

Dissipation Constant

Still Air at 77°F (25°C)

.60 mW/°C

.65 mW/°C

.85 mW/°C

1.00 mW/°C

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)

100% Maximum Power Rating @ 77°F (25°C)

.048 Watts

.052 Watts

.068 Watts

.080 Watts

Derated to 0% @ Maximum Temperature

See Class

See Class

See Class

See Class