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Custom Made Epoxy-encapsulated NTC Thermistor 2.7KOhm 3977K 1% 500mW For Coolant Temperature Sensor 2.1-2.7KOhm At 20C

Name: Custom Made Epoxyencapsulated NTC Thermistor 27KOhm 3977K 1 500mW For Coolant Temperature Sensor 2127KOhm At 20C
Brand: Aolittel
Price: 1 USD

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Brand Name :	Aolittel
Model Number :	CWFD0272FC-35X
Price :	Negotiable
Payment Terms :	T/T, Western Union
Supply Ability :	1,000,000 Pieces Per Month
Delivery Time :	2-4 Weeks

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Product Details
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Custom Made Epoxy-encapsulated NTC Thermistor 2.7KOhm 3977K 1% 500mW For Coolant Temperature Sensor 2.1-2.7KOhm At 20C

Custom Made Epoxy-encapsulated NTC Thermistor 2.7KOhm 3977K 1% 500mW For Coolant Temperature Sensor 2.1-2.7KOhm At 20C

Applications

Temperature measurement, sensing and control,temperature compensation in industrial and consumer
electronics.

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Description

These thermistors have a negative temperature coefficient.
The device consists of a chip with two solid copper tin plated leads. It is grey lacquered and color coded, but not insulated.

Features

• Accuracy over a wide temperature range
• High stability over a long life
• Excellent price/performance ratio

• Wide resistance range
• Cost-effective
• Tinned copper leads

MOUNTING

By soldering in any position.
Not intended for potted applications.

Dimension (mm)

NO	Material Name	Item/PN
a.	Element	R25=2.7KΩ±1% B25/85=3977K±1%
b.	Coating	Epoxy Resin (Black)
c.	Lead Wire	UL1332 AWG28 * 2C (Black)

Electrical Performances

NO	Item	Sign	Test Conditions	Min.	Normal value	Max.	Unit
1.	Resistance at 25℃	R25	Ta=25±0.05℃ P_T≦0.1mw	2.673	2.7	2.727	kΩ
2.	B Value	B25/85		3937	3977	4016	k
3.	Dissipation factor	σ	Ta=25±0.5℃	2.5		/	mw/℃
4.	Time constant	τ	Ta=25±0.5℃	/	/	20	sec
5.	Insulation resistance	/	500VDC	100	/	/	MΩ
6.	Withstand voltage	/	1500V AC (3mA)	5	/	/	Sec
7.	Operating temp.range	/	/	-40	/	+105	℃

Detailed Photos

Reliability Test

NO	Item	Technical requirements	Test conditions and method
5-1.	High temp. Test	DR/R25£±3% DB/B£±3% No change with withstand voltage, Insalution performance. Appearance without damage.	100±5℃,power on 500±24 hrs,DC0.2mA
5-2.	Low temp. tes		-15±5℃,power on 500±24 hrs,DC0.2mA
5-3.	Endure moisture test		Store in environment 55±2℃,90%-95%RH for 240±24 hrs
5-4.	Temp. cycle test		–20℃×30min→Room temp.×10min→ in 100℃ water×30min→Room temp.×10min 10 cycles
5-5	Load electrify test		Power on DC1mA, 500hrs in room temp. and humid.
5-6	Tensile tests		Applying 2 kg force lasts 1 min.
5-7	Drop test		Free fall into concrete floor from height 1M ,10 cycle.
5-8	Vibration test		Frequency range:10～55HZ Total amplitude 1.52mm 1 cycle 1 min ,direction and time X,Y,Z axs 2Hr each.
5-9	Bending test		Bend 180°binding site wire and epoxy resin.Back and forth 10 times

Resistance Vs. Temperature Table

R－T CONVERSION TABLE
R25=2.7KΩ±1% B25/85=3977K±1%
T/℃	Rmax	Rcen	Rmin	T/℃	Rmax	Rcen	Rmin
-55	211.966	223.777	236.223	-18	21.618	22.303	23.006
-54	197.640	208.505	219.946	-17	20.470	21.106	21.760
-53	184.388	194.389	204.911	-16	19.389	19.981	20.588
-52	172.123	181.332	191.014	-15	18.371	18.921	19.486
-51	160.761	169.246	178.160	-14	17.411	17.923	18.448
-50	150.230	158.051	166.262	-13	16.507	16.983	17.471
-49	140.463	147.675	155.242	-12	15.654	16.097	16.551
-48	131.398	138.052	145.027	-11	14.850	15.262	15.684
-47	122.980	129.121	135.555	-10	14.092	14.475	14.867
-46	115.158	120.828	126.764	-9	13.376	13.732	14.097
-45	107.885	113.122	118.602	-8	12.700	13.032	13.371
-44	101.119	105.958	111.018	-7	12.062	12.371	12.686
-43	94.821	99.294	103.968	-6	11.459	11.746	12.040
-42	88.955	93.092	97.411	-5	10.890	11.157	11.429
-41	83.489	87.316	91.309	-4	10.351	10.600	10.853
-40	78.393	81.934	85.626	-3	9.843	10.074	10.309
-39	73.640	76.918	80.333	-2	9.361	9.576	9.795
-38	69.204	72.239	75.399	-1	8.906	9.106	9.310
-37	65.062	67.873	70.798	0	8.475	8.662	8.851
-36	61.193	63.797	66.505	1	8.068	8.241	8.417
-35	57.577	59.990	62.498	2	7.682	7.843	8.006
-34	54.195	56.433	58.756	3	7.316	7.466	7.618
-33	51.033	53.107	55.260	4	6.970	7.109	7.250
-32	48.073	49.996	51.992	5	6.642	6.771	6.902
-31	45.301	47.086	48.936	6	6.331	6.451	6.573
-30	42.706	44.362	46.077	7	6.036	6.148	6.261
-29	40.274	41.810	43.402	8	5.757	5.860	5.965
-28	37.994	39.420	40.896	9	5.492	5.588	5.685
-27	35.855	37.180	38.550	10	5.243	5.333	5.423
-26	33.850	35.080	36.351	11	5.001	5.084	5.167
-25	31.967	33.110	34.289	12	4.775	4.851	4.928
-24	30.199	31.261	32.356	13	4.559	4.630	4.702
-23	28.539	29.526	30.543	14	4.355	4.421	4.487
-22	26.980	27.896	28.841	15	4.161	4.222	4.283
-21	25.513	26.365	27.243	16	3.976	4.032	4.089
-20	24.135	24.927	25.742	17	3.801	3.853	3.905
-19	22.838	23.574	24.332	18	3.634	3.682	3.730

R－T CONVERSION TABLE
R25=2.7KΩ±1% B25/50=3950K±1%
T/℃	Rmax	Rcen	Rmin	T/℃	Rmax	Rcen	Rmin
19	3.475	3.520	3.564	56	0.764	0.782	0.799
20	3.324	3.365	3.407	57	0.736	0.753	0.771
21	3.181	3.219	3.257	58	0.710	0.727	0.744
22	3.044	3.079	3.114	59	0.684	0.701	0.717
23	2.914	2.946	2.978	60	0.660	0.676	0.692
24	2.790	2.820	2.849	61	0.637	0.652	0.668
25	2.673	2.700	2.727	62	0.614	0.629	0.645
26	2.558	2.585	2.612	63	0.593	0.608	0.623
27	2.449	2.476	2.503	64	0.572	0.587	0.602
28	2.345	2.372	2.399	65	0.552	0.566	0.581
29	2.246	2.273	2.299	66	0.533	0.547	0.561
30	2.152	2.178	2.205	67	0.515	0.528	0.542
31	2.062	2.088	2.115	68	0.497	0.511	0.524
32	1.977	2.002	2.029	69	0.480	0.493	0.507
33	1.895	1.921	1.946	70	0.464	0.477	0.490
34	1.817	1.843	1.868	71	0.448	0.461	0.474
35	1.743	1.768	1.793	72	0.433	0.446	0.458
36	1.672	1.697	1.722	73	0.419	0.431	0.443
37	1.605	1.629	1.654	74	0.405	0.417	0.429
38	1.540	1.564	1.588	75	0.392	0.403	0.415
39	1.479	1.502	1.526	76	0.379	0.390	0.402
40	1.420	1.443	1.467	77	0.367	0.378	0.389
41	1.364	1.387	1.410	78	0.355	0.366	0.377
42	1.310	1.333	1.356	79	0.343	0.354	0.365
43	1.259	1.281	1.304	80	0.332	0.343	0.353
44	1.210	1.232	1.254	81	0.322	0.332	0.342
45	1.163	1.184	1.206	82	0.312	0.322	0.332
46	1.118	1.139	1.161	83	0.302	0.311	0.321
47	1.075	1.096	1.117	84	0.292	0.302	0.312
48	1.035	1.055	1.075	85	0.283	0.293	0.302
49	0.995	1.015	1.036	86	0.274	0.284	0.293
50	0.956	0.976	0.995	87	0.266	0.275	0.284
51	0.922	0.941	0.961	88	0.258	0.267	0.276
52	0.888	0.906	0.926	89	0.250	0.258	0.267
53	0.855	0.873	0.892	90	0.242	0.251	0.259
54	0.823	0.841	0.860	91	0.235	0.243	0.252
55	0.793	0.811	0.829	92	0.228	0.236	0.244

R－T CONVERSION TABLE
R25=2.7KΩ±1% B25/50=3950K±1%
T/℃	Rmax	Rcen	Rmin	T/℃	Rmax	Rcen	Rmin
93	0.221	0.229	0.237
94	0.215	0.222	0.230
95	0.208	0.216	0.224
96	0.202	0.210	0.217
97	0.196	0.203	0.211
98	0.191	0.198	0.205
99	0.185	0.192	0.199
100	0.180	0.187	0.193
101	0.175	0.181	0.188
102	0.170	0.176	0.183
103	0.165	0.171	0.178
104	0.160	0.166	0.173
105	0.156	0.162	0.168
106	0.151	0.157	0.164
107	0.147	0.153	0.159
108	0.143	0.149	0.155
109	0.139	0.145	0.151
110	0.135	0.141	0.147
111	0.132	0.137	0.143
112	0.128	0.133	0.139
113	0.125	0.130	0.135
114	0.121	0.127	0.132
115	0.118	0.123	0.128
116	0.115	0.120	0.125
117	0.112	0.117	0.122
118	0.109	0.114	0.119
119	0.106	0.111	0.116
120	0.104	0.108	0.113
121	0.101	0.105	0.110
122	0.098	0.103	0.107
123	0.096	0.100	0.104
124	0.093	0.098	0.102
125	0.091	0.095	0.099

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Custom Made Epoxy-encapsulated NTC Thermistor 2.7KOhm 3977K 1% 500mW For Coolant Temperature Sensor 2.1-2.7KOhm At 20C

Custom Made Epoxy-encapsulated NTC Thermistor 2.7KOhm 3977K 1% 500mW For Coolant Temperature Sensor 2.1-2.7KOhm At 20C

Custom Made Epoxy-encapsulated NTC Thermistor 2.7KOhm 3977K 1% 500mW For Coolant Temperature Sensor 2.1-2.7KOhm At 20C

negative temperature coefficient thermistor

ntc thermistor high temperature

Custom Made Epoxy-encapsulated NTC Thermistor 2.7KOhm 3977K 1% 500mW For Coolant Temperature Sensor 2.1-2.7KOhm At 20C

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