Epoxy-Coated Chip Thermistors

Photo of NTC Epoxy Coated Chip Thermistor Sensor Scientific Epoxy-Coated Chip Thermistors are ideally suited for applications where low cost is a primary consideration. Units are available in resistance values from 100 to 100k ohms @ 25°C. The available resistance vs. temperature curves are industry-standard. The resistance tolerance is usually specified at 25°C. Other calibration temperatures are available on a special order basis. Typical tolerances are ±1, 2, 5, & 10%. Epoxy-Coated Chip Thermistors are widely used in a variety of temperature measurement and compensation applications.

FEATURES:

LOW COST
HIGH STABILITY
INDUSTRY-STANDARD RESISTANCE VS. TEMPERATURE CURVES
LOW THERMAL MASS

OPTIONS:

CUSTOM TERMINATIONS AND LEADS
NON-STANDARD TOLERANCES
NON-STANDARD RESISTANCE VALUES
NON-STANDARD CALIBRATION TEMPERATURES
CUSTOM PROBE ASSEMBLY OPTIONS

SPECIFICATIONS:

MAXIMUM OPERATING TEMPERATURE: 150°C (100°C FOR RESISTANCE VALUES UNDER 1000 OHMS)
DISSIPATION CONSTANT: 1.5 mW/°C TYP. IN STILL AIR
TIME CONSTANT: 10 SEC. TYP. IN STILL AIR

Resistance @ 25 Deg C ohms	Part number	R. vs. Temp. Curve	Maximum Diameter (D) inches	Lead Diameter inches	Lead Length inches
100	W101A*	A	0.250	0.0126	1.5 min.
500	W501A*	A	0.125	0.0126	1.5 min.
1000	W102A*	A	0.095	0.0126	1.5 min.
1000	W102C*	C	0.150	0.0126	1.5 min.
2000	W202C*	C	0.095	0.0126	1.5 min.
2252	W222C*	C	0.095	0.0126	1.5 min.
3000	W302C*	C	0.095	0.0126	1.5 min.
4000	W402C*	C	0.095	0.0126	1.5 min.
5000	W502C*	C	0.095	0.0126	1.5 min.
6000	W602C*	C	0.095	0.0126	1.5 min.
10000	W103C*	C	0.095	0.0126	1.5 min.
10000	W103Y*	Y	0.095	0.0126	1.5 min.
20000	W203C*	C	0.095	0.008	2.0 min.
30000	W303D*	D	0.095	0.0126	1.5 min.
30000	W303E*	E	0.095	0.0126	1.5 min.
50000	W503D*	D	0.095	0.008	2.0 min.
100000	W104D*	D	0.095	0.008	2.0 min.

To specify desired resistance tolerances, substitute the required tolerance for '*' in the part number. For example, for a 5% tolerance W502C* part, the complete part number would be W502C5.

RESISTANCE VS. TEMPERATURE MULTIPLYERS (PDF)

FEATURES:

OPTIONS:

SPECIFICATIONS:

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