NTC INTERCHANGEABLE THERMISTORS

wpe1.gif (3800 bytes) Western Electronic Components' interchangeable NTC Thermistors offers easy interchangeability over a large temperature range (usually 0 - 70 °C). These thermistors have the following characteristics:

High Quality
Low Cost
Small
Epoxy Encapsulated

They offer very stable and accurate temperature sensing for applications such as temperature compensation, and temperature measurement and control.

Specifications

Dissipation Constant: 2 mW/°C The amount of power through self-heating necessary to raise the thermistor body 1°C.
Time Constant: 10 Seconds The time, in seconds, required for a thermistor dissipating negligible power to change 63% of the total difference between its initial and final body temperature when subjected to a change in temperature.

Resistance @ 25 °C (Ohms)	Temperature Tolerance From 0°C to 70°			Curve Type (see table below)
	± 0.2 °C	± 0.5 °C	± 1.0 °C
	Part Number	Part Number	Part Number
2,252	WNC2502	WNC2503	WNC2504	H
3,000	WNC3002	WNC3003	WNC3004	H
4,000	WNC4002	WNC4003	WNC4004	H
5,000	WNC5002	WNC5003	WNC5004	H
6,000	WNC6002	WNC6003	WNC6004	H
7,000	WNC7002	WNC7003	WNC7004	H
8,000	WNC8002	WNC8003	WNC8004	H
9,000	WNC9002	WNC9003	WNC9004	H
10,000	WNC1012	WNC1013	WNC1014	H
20,000	WNC2012	WNC2013	WNC2014	H
30,000	WNC3012	WNC3013	WNC3014	H

wpe2.gif (5981 bytes)

THERMISTOR DATA (Curve "H")

Resistance Ratio vs Temperature

Temperature °C	Resistance (R/R25)	Temperature °C	Resistance (R/R25)
0	3.2657	36	0.6268
1	3.1036	37	0.6016
2	2.9505	38	0.5776
3	2.8058	39	0.5546
4	2.6690	40	0.5327
5	2.5396	41	0.5117
6	2.4174	42	0.4918
7	2.3018	43	0.4726
8	2.1922	44	0.4543
9	2.0886	45	0.4369
10	1.9904	46	0.4201
11	1.8974	47	0.4041
12	1.8093	48	0.3889
13	1.7258	49	0.3742
14	1.6465	50	0.3602
15	1.5715	51	0.3467
16	1.5003	52	0.3340
17	1.4327	53	0.3217
18	1.3684	54	0.3099
19	1.3074	55	0.2986
20	1.2495	56	0.2878
21	1.1944	57	0.2774
22	1.1421	58	0.2675
23	1.0923	59	0.2580
24	1.0451	60	0.2488
25	1.0000	61	0.2400
26	0.9573	62	0.2316
27	0.9166	63	0.2235
28	0.8778	64	0.2157
29	0.8409	65	0.2083
30	0.8057	66	0.2011
31	0.7722	67	0.1941
32	0.7403	68	0.1876
33	0.7099	69	0.1813
34	0.6809	70	0.1752
35	0.6532

WECC Home Page