Thermistors are semiconductor electrical components made from metal oxides of transition elements (from titanium to copper in the periodic table). Its electrical conductivity is between the conductor and the insulator; And it decreases sharply with increasing temperature. Generally, when the temperature changes by 1 ° C, its resistance changes from 2% to 6% of the original resistance, which is about ten times larger than the temperature coefficient of ordinary metal conductors (for example, the temperature coefficient of platinum is 0.42%). So it can be used as a temperature sensitive element.

1. Introduction:
MF52 bead temperature measurement type thermistor is the use of new materials,The new process produces a small volume of epoxy resin encapsulated type NTC thermistor,With high precision and rapid response.
2. Application:
· Air conditioning · Heating · Electronic thermometer · Level sensing · Car electronics · Electronic desk calendar · Mobile phone battery



 
Note: the size and color of wire according to customer requirements!
  Second: Features:
1: MF52 series of products with the co-lead epoxy coating type
2: Wide resistance range: 0.1KΩ ~ 500KΩ
3: resistance and B value of high precision
4: anti-moisture, good insulation, high reliability, small time constant
5: small size, reflecting the speed
6: a long time to stabilize the work, good consistency
7: Operating temperature range: -40 ~ 125 ℃
Three. Features:
· High precision · Small size, fast response · Can work steadily for a long time · Interchangeability, consistency is good
One：Dimensional drawings
MF 52 103  F 3950
① ②  ③  ④ ⑤　
①MF ¬ - negative temperature coefficient (NTC) thermistor code.
② 52 - epoxy resin package temperature sensor NTC thermistor.
③103 - thermistor nominal resistance, said the resistance of the nominal resistance: 10 × 103 (Ω).
F = ± 1%, G = ± 2%, H = ± 3%, J = ± 5% of the resistance value (accuracy)
⑤ 3950 - resistance of the thermal index (material coefficient) B value: 395 × 10 (K)
Five: MF52 Series Model Specifications

Model	Rated resistance value（R25）		B value	Operating temperature	Dissipation factor（mW/℃）	Thermal time constant（S）
	resistance （KΩ）	Allowable deviation （± %）	Nominal value （K）
MF52-102-3950	1	±1% ±2% ±3% ±5%	3950	-40℃  ~ +200℃	≥2.0 Still air	≤15 Still air
MF52-152-3950	1．5		3950
MF52-202-3435	2		3435
MF52-2.252-3950	2.252		3950
MF52-472-3950	4.7		3950
MF52-502-3470	5		3470
MF52-502-3950	5		3950
MF52-682-3950	6.8		3950
MF52-103-3435	10		3435
MF52-103-3470	10		3470
MF52-103-3600	10		3600
MF52-103-3950	10		3950
MF52-103-3977	10		3977
MF52-103-4100	10		4100
MF52-153-3950	15		3950
MF52-203-3950	20		3950
MF52-233-3950	23		3950
MF52-303-3950	30		3950
MF52-333-3950	33		3950
MF52-40.27-3950	40.27		3950
MF52-473-3950	47		3950
MF52-503-3950	50		3950
MF52-503-3990	50		3990
MF52-503-4050	50		4050
MF52-104-3950	100		3950
MF52-104-3990	100		3990
MF52-104-4200	100		4050
MF52-204-3950	200		3950
MF52-204-4260	200		4260

Note: According to customer requirements, Provide different resistance, B value precision, Customize.
   When measuring NTC thermistors, the following must be observed:
• Can not be measured in air, The temperature difference in the air is bigger, Measurement is not accurate, Resulting in accuracy bias.

• Measurement using a high-precision thermostat, NTC into the thermostat after the test tank, After the temperature of the thermostat is stable, Can be measured.
• Measure voltage as low as possible,To reduce NTC self-heating caused by measurement error.
• For high temperature measurements,The temperature of the bath needs to be corrected and checked with a thermometer.