4 / 4

MF72-10D25

10

7

0.13

32

150

MF72-12D25

12

6

0.156

32

150

MF72-16D25

16

6

0.16

35

152

Electrical Characteristics

Characteristics

Test

Methods

Zero Power

Resistance at 25℃

Resistance shall be measured at DC current applied when the self heat generation

does not occur at room ambient (25.0±0.2℃)

B Value

After the resistance at 25℃ and 85℃ respectively are measured, the B Value is

calculated by the following equation:

B=ln(R25/R85)/(1/298.15-1/358.15)

R25= Resistance at 25.0±0.2℃

R85= Resistance at 85.0±0.2℃

Thermal Dissipation

Constant

Equivalent to the required power to rise temperature of the thermistor up to 1℃ in

the air and without cooling of airflow. the unit of the constant is mw/℃

Maximum allowable

steady-state current

Maximum allowable steady-state DC current applied at the specified temperature

without cooling of airflow

Thermal Time

constant

The period of time when the temperature of the specimens is (1-1/e) times the

temperature difference shall be measured when the ambient temperature is

changed.(e:2.71828)

Voltage withstanding

(Between Terminals

and coating)

An AC Voltage of 1000V shall be applied. Between the terminals and the insulating

coating for one minute at room ambient.

Insulation Resistance

(Between Terminals

and coating)

Insulation resistance between terminals and the insulating coating shall be

measured at 1000Vdc with one minute electrification, and at room ambient.

CONTACT INFORMATION

CYG

WAYON CIRCUIT PROTECTION CO., LTD.

No.1001, Shiwan(7) Road, Pudong District, Shanghai, P.R.China.201207

Tel: 8621-68960674 Fax: 8621-50757680-8618 Email: market@way-on.com

WAYON website: http://www.way-on.com

For additional information, please contact your local Sales Representative.