NTC thermistor mf52e-3 Use notes

Source: Internet
Author: User

Model: mf52e-3

r25:47kω

B Value: 3950

The NTC is the abbreviation for negative temperature coefficient, which means a negative temperature system.

Empirical formula for resistance value and temperature conversion of thermistor in negative temperature system:

RT = RN * EXP (B * (1/T–1/TN))

RT: NTC thermistor resistance at temperature T (K).
RN: NTC thermistor resistance at rated temperature TN (K).
T: The specified temperature. T + 273.15
The material constant of the B:NTC thermistor, also known as the Thermosensitive index.
Exp: the index (e = 2.71828) with natural number e as the base. )。

tn:25 + 273.15 = 298.15

The equation is an empirical formula, only in the limited range of the rated temperature TN or the rated resistor resistance RN, because the material constant B itself is also a function of the temperature T.

Material constant (thermosensitive index) B value (K)

The B value is defined as:

B = ((T1*T1)/(T2-T1)) * LN (RT1/RT2)

RT1: The 0 Power resistance value when the temperature T1 (K).
RT2: The 0 Power resistance value when the temperature T2 (K).
T1, T2: Two specified temperatures (K).

For the commonly used NTC thermistor, the B value range is generally between 2000K ~ 6000K.

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.