Name: high precision ntc thermsitor for temperature sensing
Brand: GETM
Availability: InStock
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high precision ntc thermsitor for temperature sensing

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Band: VETENG

High Precision NTC Thermsitor For Temperature Sensing

Body Size: Ф2.4

Operating temperature range: - 40℃ ~ +100℃

● ROHS compliant

● High precision

● Interchangeability

Recommended Applications:
● Thermometers
● Medical devices
● Precision instruments
● Tight tolerance instrumentation

Shape and dimension (Unit：mm)

Dmax±0.5	Lmax	L2mix	d	F
2.0	3.2	25	0.35	2.0

2﹑Material

Material coated	Color	Lead material
Epoxy	Black	Tinned steel wire

3﹑Specifications

MF52	A1	103	F	3435
Epoxy Coated Type NTC Thermistor	Tinned steel wire	Resistance	Resistance Tolerance	B-Value(25/85)
Epoxy Coated Type NTC Thermistor	Tinned steel wire	10KΩ	±1%	3435K

4﹑Electrical characteristics

	Item	Symbol	Test Condition	Unit	Performance requirements
4.1	Resistance at 25°C	R25	Ta=25±0.05℃ Test Power≤0.1mW Test in Flowing liquid	KΩ	10±5%
4.2	B-Value	25/85	B=[(Ta X Tb)∕(Tb-Ta)]×ln(Ra∕Rb) Tb=85℃±0.1℃	K	3435±1%
4.3	Thermal dissipation constant		in still air	mW∕℃	≥2
4.4	Thermal time constant		in still air	sec	≤7
4.5	Insulation resistance	∕	100V∕DC1min	MΩ	≥100
4.6	Operating temperature range	∕	∕	℃	-55~125

5﹑Reliability

	Item	Method of Examination	Specification
5.1	Resistance welding	The lead immersion tin solutionof 235 ± 5 ℃, tin surface from the body at the lower end of 6mm, 2-3 seconds	Solder dipping portion of the surface of the lead is uniform coating and smooth, area over 95%
5.2	soldering heat	The lead dipped in tin liquid of 265 ℃ ± 5, the liquid from the resistor body 6mm at the time 5 ± 1 Seconds	No visible damage, R25 R∕R≤±2%
5.3	Pulling	Pull:5N, TIme:10 Seconds	No visible damage, R25 R∕R≤±2%
5.4	Rapid change of Temp.	55℃30min→25℃min→125℃30min→25℃min, Repeated 5 times, resume four hours	No visible damage, R25 R∕R≤±2%
5.5	high Temp.	Temp.:125℃, Time:16 hours	No visible damage, R25 R∕R≤±2%
5.6	Cold	Temp.:-55℃, Time:2 hours	No visible damage, R25 R∕R≤±2%
5.7	Depression	Barometric pressure:40±0.1K, Time: 4 hours	No visible damage, R25 R∕R≤±2%
5.8	Steady warm	Temp.:40℃, Humidity:93%, Time:500±12 hours	No visible damage, R25 R∕R≤±2%, Withstanding Voltage≥700V∕AC1min Insulation Resistance≥100 KΩ
5.9	Alternating hot and humid	Temp.:25~40℃, Humidity:90% Time:24 hours	No visible damage, R25 R∕R≤±2%, Withstanding Voltage≥700V∕AC1min Insulation Resistanc≥100 KΩ
5.10	Upper category temperature Zero-power resistance Persistent	Temp.:125℃±2℃ Time:1000±24 hours	No visible damage, R25 R∕R≤±2%
5.11	Vibration	Frequency Range:10~500HZ, Amplitude:0.75mm or 98m∕S Time: 2 hours	No visible damage, R25 R∕R≤±2%
5.12	Collision	Acceleration:250m∕S, Pulse duration:6Ms, The number of collisions : 4000 times	No visible damage, R25 R∕R≤±2%

6﹑Welding conditions

When welding, from body root to 6mm. Soldering Temp. should be below 350 ℃. Soldering time should be as short as possible.

7﹑Storage conditions

7.1 Temp. storage:-10℃～40℃;

7.2 humidity storage:≤75%RH;

7.3 Avoid storing in a corrosive gas and light environment;

7.4 If open, please store in the sealed package

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