MF51E 10K 103F3435/3950 Enameled Wire NTC Type Thermistor For Electronic Thermometer Medical Equipment

MF51E 10K (103F3435/3950) enameled wire NTC thermistor is suitable for electronic thermometer medical equipment

 

 

 

Enameled wire thermistor

 

 

MF51E-Enameled Wire Insulation Coating Wire NTC Thermistor Also known as Copper Enameled Wire NTC Thermistor, is a small, high-precision chip and enamelled copper wire with insulating polymer coating, coated with epoxy resin, with NTC interchangeable thermistor strips with bare tin-plated enamelled copper leads. At present, the existing conventional wire diameters are Ø0.18mm, Ø0.3mm and enameled wire epoxy packaging with different wire diameter specifications. The conventional resistance value is 50K, 10K. The accuracy is 1% 2% 3%, etc. B value is 3950, 3435, 3380, etc., the head Diameter 1.2mm, 1.3MM, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, etc., can be customized according to customer requirements to meet different needs.

 

 

(1) Product features:

Precision Solid State Temperature Sensors

Interchangeability down to ±0.18°F (±0.1°C)

Suitable for use from -112°F to 302°F (–80°C to 150°C)

High sensitivity, greater than –4%/°C at 77°F (25°C)

Suitable for temperature measurement, control and compensation

High reliability and stability within the interchangeable range

The most popular resistance (R) vs temperature (T) curve available

Resin coating for good mechanical strength and solvent resistance

solid structure

For DC95: .012 in (0.3mm) diameter bare tinned copper leads

For EC95: Bare tin-plated alloy leads of .008 in (0.2mm) diameter

For TK95: .010 in (.25mm) diameter PTFE insulated leads

 

(2) Scope of application:

Electronic thermometer, medical equipment, medical instrument

Temperature meters, temperature recorders, electronic heating toys

Mobile power supply temperature measurement, aluminum battery protection board

shower temperature sensor

Home appliance control panel

Aerospace

Degassing applications

 

(3) Structural size:

 

Unit:mm

Regular size table
Dimensions	D ±0.1	L 1 ±0.1	L ±1	L 2 ±1	d±0.01
Regular size	0.8	1.6	10,200	3	0.15
	1.2	2.2	10,200	3	0.2
	1.4	3.0	10,200	3	0.2
	1.5	4.0	10-200	3	0.25
This product size	1.3	3.5	60	2	0.28

(4) Specifications:

example:

 

LK 51E—103—3950—2

———————————

① ② ③ ④ ⑤

 

Among them, ① represents Dongguan Linkun Electronic Technology Co., Ltd.

② indicates enameled wire NTC thermistor.

③Standard resistance value (R25°C) at 25°C, for example: 49.12, that is, R25°C is 49.12KΩ.

④B value (B25/50°C) For example: 3950, that is, B25/50°C is 3950K.

⑤ R25°C resistance value accuracy: 1 (±1%), 2 (±2%), 3 (±3%), 5 (±5%)

 

(5)Product List:

 

Specification	R25℃ (KΩ)	R25℃/50℃ (K)	Dissipation coefficient(mW/℃)	Time constant (S)	Range of working temperature (℃)
MF51E-202-3900-1	2K	3900	2.1 mW/℃ in static air	5～10S in static air	—50～+350℃
MF51E-502-4557-1	5K	4557
MF51E-103-3380-1	10K	3380
MF51E-153-3600-1	15K	3600
MF51E-203-3850-1	20K	3850
MF51E-303-3900-1	30K	3900
MF51E-803-3500-1	80K	3500
MF51E-104-4100-1	100K	4100
MF51E-254-3950-1	250K	3950

 

(6) Matters needing attention:

Welding method: The metal body and the body are directly welded for welding. Do not use soldering to avoid false welding. The welding time is controlled within 3.5 seconds

Do not test the enameled wire thermistor in the air. The temperature difference in the air is large, and the measurement is very inaccurate. It often produces a deviation of more than 1-2°C. It must be measured with a high-precision constant temperature oil tank, and the measured NTC is placed in the constant temperature oil tank. After that, the temperature of the constant temperature bath must be stable before

Product Description:

MF5A NTC Thermistor Description:

MF5A-103F /503F/104F R25=(50K) B25/50=3950±1% High-precision small-volume negative temperature coefficient thermistor powder preparation to NTC chip coating full-set manufacturer Dongguan Linkun Electronic Technology Co., Ltd.

NTC (Negative Temperature Coefficient) thermistor is a resistor with high temperature coefficient and is also a semiconductor element that is extremely sensitive to temperature. It is made of metal oxides such as manganese, cobalt, nickel, and copper, and is manufactured by ceramic technology. It is formed, because its conduction method is completely similar to semiconductor materials such as germanium and silicon. When the temperature is low, the number of carriers (electrons and holes) in these oxide materials is small, so the resistance value is high. As the temperature rises, the carrier As the number of carriers increases, the resistance value decreases.

 

MF5A small leather wire thermistor features:

• NTC temperature sensor is small in size and fast in response

• NTC leads are insulated, and the wires are soft and can be bent moderately

•Thermistor resistance value B has high precision and accurate temperature measurement

• NTC chip products are lead-free and comply with the EU ROHS directive

 

Application scope of thermistor and NTC temperature sensor:

• , vacuum gauge, temperature and humidity gauge, beauty equipment, power supply, electronic toys

 

• Cell phone batteries, NB batteries, electric vehicle batteries, medical instruments for gas analyzers

 

• Solar water heaters, refrigerators, cars, copiers, fax machines

 

• Electronic thermometer, electronic stove, electric cooker, electric thermos

 

• Clothes dryer, electric iron, gas water heater, electric blanket, air conditioner

 

• 3C home appliances, petroleum heaters, microwave ovens

 

 

MF5A small leather wire thermistor series main technical parameters:

Model	Rated resistance value(R25)		B value	Work temperature	Dissipation coefficient(mW/℃)	thermal time constant (S)
	Resistance(KΩ)	Allowable deviation(± %)	nominal value (K)
MF5A-102-3435	1	±1% ±2% ±3% ±5%	3435	-40℃ ~ +120℃	≥3.0 静止空气中	≤6 静止空气中
MF5A-202-3435	2		3435
MF5A-2.252-3950	2.252		3950
MF5A-472-3950	4.7		3950
MF5A-502-3470	5		3470
MF5A-502-3950	5		3950
MF5A-682-3950	6.8		3950
MF5A-103-3435	10		3435
MF5A-103-3470	10		3470
MF5A-103-3600	10		3600
MF5A-103-3380	10		3380
MF5A-103-3977	10		3977
MF5A-103-4100	10		4100
MF5A-153-3950	15		3950
MF5A-203-3950	20		3950
MF5A-233-3950	23		3950
MF5A-303-3950	30		3950
MF5A-333-3977	33		3977
MF5A-40.27-3950	40.27		3950
MF5A-473-4013	47		3950
MF5A-503-3977	50		3977
MF5A-503-3990	50		3990
MF5A-503-4050	50		4050
MF5A-104-3950	100		3950
MF5A-104-3990	100		3990
MF5A-104-4200	100		4200
MF5A-204-3892	200		3892
MF5A-204-3917	200		3917

Precautions for the use of small leather wire thermistors:

Be sure to use within the specified temperature range to avoid deterioration of the material and characteristics.

Thermistors are designed based on transformers used in general (indoors at room temperature, humidity, and pressure). Therefore, if they are used in the following environments, they will fail (or burn out) when the characteristics are worst. ), please do not use in such an environment.

① Corrosive reducing gases (Cl2, HXS, NH3, SOX, NOX, etc.).

② Among volatile and flammable gases.

③ Places with a lot of dust.

④ A place where pressure has been reduced or increased.

⑤ Places in direct contact with water or places that are prone to condensation due to high humidity.

⑥ Place in salt water, oil, liquid medicine, organic solution.

⑦ Places with excessive vibration.

⑧ Other places similar to ①—⑦.

 

A:(Tin. nickle Cu or Cp wire)
Normal dimension table

 

Code	Dmax	L1max	L2min	d ±0.05	F ±0.5
A1	2.5	4	25	0.3	1.7
A2	3	4.5	25	0.45	2.2

 

B:(Enamelled cu wire)
Normal dimension table

Code	Dmax	L1max	L2min	L3 ±1	d±0.05
B1	2	3.5	by user determine	3	0.2
B2	3	4	by user determine	3	0.3

 

C:(High-temperature wire)
Normal dimension table

Code	Dmax	L1max	L2min	L3 ±1	Wire AWG
C1	3	7.5	by user determine	5	30#
C2	4	7.5	by user determine	5	28#

 

D:(Normal temperature wire)
Normal dimension table

Code	Dmax	L1max	L2min	L3 ±1	Wire AWG
D1	3	7.5	by user determine	5	30#
D2	4	7.5	by user determine	5	28#

 

E:Lead and head are all special specification)
Normal dimension table

Code	Dmax	L1max	L2min	L3 ±1	Wire AWG
E1	by user determine	by user determine	by user determine	5	by user determine
E2	by user determine	by user determine	by user determine	5	by user determine

 

DE:(Cp Lead Coated with epoxy resin)
Normal dimension table

Code	Dmax	L1max	L21max	L3	d±0.05	F±0.05
DE1	3	6.0	55	By user determine	0.3	/
DE2	4	7.5	35	by user determine	0.45	/

 

F:(Tinned steel wire)
Normal dimension table

Code	Dmax	L1max	L2±1.5	d±0.01	f±0.05	T max
F	3.8	9.5	17	0.6	2.5	3.5

 

Small leather wire thermistor abnormal handling:

When the thermistor is abnormal, short-circuit current will pass through, and there may be abnormal smell, abnormal sound, smoke, etc., please be sure to connect the thermistor in series with the current protection as another protection device.

When the thermistor is working, depending on the site (environment) conditions, it may exceed 110°C. Please confirm whether it affects surrounding parts or materials.

Abnormalities in thermistors not only affect parts or materials and cause them to deteriorate, but gas emitted from parts or materials often becomes the cause of component deterioration.

Full range of thermistors displayed:

 

 

Product Description:

NTC Type Thermistor is a temperature measuring thermistor that is widely used in the electronics industry. Its B-Value is 25/50: 3100K-4750K with a accuracy of ±1%. It has a wide resistance range from 1KΩ to 500KΩ and can be manufactured with various allowable tolerances of ±0.5%, ±1%, ±2%, ±3% and ±5%. It has a low thermal time constant of 20S and a high tolerance of 2mw/°C. The MF52 temperature measuring thermistor and MF55 film thermistor are the two main types of NTC Type Thermistor.