
Platinum RTD Capsules
RTDCAP Series
U 4 Temperature Ranges
Available
U 100 or 1 KΩ Available
U 2-, 3- and 4-Wire
Configurations
as Noted
U Moisture Resistant
Available in Some
Models
Ready to use platinum RTD
capsules have insulated lead wires
welded and anchored internally.
No splicing to fragile elements
is required. This construction
assures reliable rugged
embedment, insertion or probe
assembly. Tip diameters from
0.086 to 0.125". Standard sensors
and encapsulation materials rated
up to 540°C (1000°F). Choose
the moisture resistant version for
condensing conditions.
C
Probe tip shown
actual size.
RTDCAP-100A-3-A125-060-T-40
Specifications
Standard Lead Length: 1 m (40")
Operating Temperature Range:
TFE Leads: -200 to 260°C
(-320 to 500°F)
Polyimide Leads: -200 to 350°C
(-320 to 660°F)
Fiberglass Leads: -75 to 510°C
(-100 to 950°F)
Moisture Resistant: -50 to 200°C
(-60 to 390°F)
Sensing Element: International grade
thin film platinum, a = 0.00385 Ω/Ω/°C
per IEC 60751
Ice Point Resistance: 100.00±0.06Ω
or 1000.0±0.6Ω at 0°C
Time Constant (Water at 3'/Second):
0.086 Diameter = 0.5 seconds
0.098 Diameter = 0.6 seconds
0.125 Diameter = 0.8 seconds
0.187 Diameter = 1.5 seconds
Self-Heating: Greater than 15 mW/°C
Interchangeability/Accuracy:
Class A (±0.15+.002*|t|°C [where
|t|= absolute value of temperature in
°C]) between -50 and 300°C, Class B
above and below these temperatures
Long Term Stability: Better than
0.05°C (0.02% of resistance) per
5 years, -50 to 300°C (-58 to 572°F),
0.25°C per year to 540°C (1004°F)
RTDCAP-100A-2-P098-050-K-40
RTDCAP-100A-2-A125-060-F-40
All models shown larger
than actual size.
Insulation Resistance: Greater than
50 Megohms at 50 Vdc at 25°C (77°F)
Maximum Current: 100 Ω = 5 mA,
1000 Ω = 2 mA for limited self-heating;
also suitable as self-heated sensors
Recommended Current: 1 mA
maximum for temperature sensing
Case Materials: Alumina on 0.125
and 0.086 diameter, Polyimide [350°C
(662°F)] on 0.098 diameter
C-1
RTDCAP-100A-1-A086-060-K-40
Lead Materials, Nickel-Coated
Copper-Insulated:
28 AWG Fiberglass:
Rated to 510°C (950°F)
28 AWG TFE: Rated to
260°C (500°F)
28 AWG Polyimide:
Rated to 350°C (660°F)

±0.06"
Length*
Lead Wire Length (Minimum)
1 m (40")
±0.01" Diameter*
*Refer to the To Order chart below for dimensions and lead materials.
Housing Material*
Lead Wire
Material*
To Order
Model No. Description
RTDCAP-100A-1-A086-060-K-40
RTDCAP-100A-2-P098-050-K-40
RTDCAP-100A-2-P098-050-T-40
RTDCAP-100A-3-A125-060-T-40
RTDCAP-100A-2-A125-060-T-40-M
RTDCAP-100A-2-A125-060-F-40
RTDCAP-1KA-1-A086-060-K-40
RTDCAP-1KA-2-P098-050-K-40
RTDCAP-1KA-2-P098-050-T-40
RTDCAP-1KA-3-A125-060-T-40
RTDCAP-1KA-2-A125-060-F-40
** Note: 3- and 4-wire sensors can be modified by the customer for 2- and 3-wire applications by cutting off unneeded lead wires.
Ordering Example: RTDCAP-100A-2-P098-050-K-40, 100 Ω RTD, 0.098" diameter x 0.5" long polyimide with 28 AWG Kapton® (polyimide)
leads, 350°C (660°F), 3-wire maximum.
RTDCAP-1KA-2-P098-050-K-40, 1000 Ω RTD, 0.098" diameter x 0.5" long polyimide with 28 AWG polyimide leads, 350°C (660°F), 3-wire.
100 Ω RTD, 0.086" diameter x 0.6" long alumina with 28 AWG polyimide
leads, 350°C (660°F), 2-wire only
100 Ω RTD, 0.098" diameter x 0.5" long polyimide with 28 AWG polyimide
leads, 350°C (660°F), 3-wire only**
100 Ω RTD, 0.098" diameter x 0.5" long polyimide with 28 AWG TFE leads,
260°C (500°F), 3-wire only**
100 Ω RTD, 0.125" diameter x 0.6" long alumina with 28 AWG TFE leads,
260°C (500°F), 4-wire only**
100 Ω RTD, 0.125" diameter x 0.6" long alumina with 28 AWG PFTE leads,
200°C (390°F), 300 psi seal, moisture resistant, 3-wire only**
100 Ω RTD, 0.125" diameter x 0.6" long alumina with 28 AWG fiberglass
leads, 510°C (950°F), 3-wire only**
1000 Ω RTD, 0.086" diameter x 0.6" long alumina with 28 AWG polyimide
leads, 350°C (660°F), 2-wire only
1000 Ω RTD, 0.098" diameter x 0.5" long polyimide with 28 AWG polyimide
leads, 350°C (660°F), 3-wire only**
1000 Ω RTD, 0.098" diameter x 0.5" long polyimide with 28 AWG TFE
leads, 260°C (500°F), 3-wire only**
1000 Ω RTD, 0.125" diameter x 0.6" long alumina with 28 AWG TFE leads,
260°C (500°F), 4-wire only**
1000 Ω RTD, 0.125" diameter x 0.6" long alumina with 28 AWG fiberglass
leads, 510°C (950°F), 3-wire only**
C-2