MHR0312SA507K20 データシートの表示（PDF） - Unspecified

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MHR0312SA507K20

High voltage reisistor

Unspecified 

MHR0312SA type

High voltage reisistor

7. ELECTRICAL CHARACTERISTICS

7.1 Temperature coefficient of Resistance

Resistance value will be measured after stabilization at each sequence temperature

for 30 minutes shown in table below. The measurement will be performed at the step 1

to 6 continuously.

The temperature coefficient of resistance will be calculated from the following formula.

The step 2 and 3 will be based on the step 1, and the step 5 and 6 will be based on

the step 4.

The change of resistance value at each temperature will be satisfied Table 1.

Step

Temp.(℃)

1

25±2

2

-15±2

3

-25±2

4

25±2

5

60±2

6

100±2

TCR(ppm/°C) =

R - R0

R0

×

1

t - t0

× 106

R =Actual measured resistance value (Ω) at t°C.

R0=Actual measured resistance value (Ω) at t0°C.

t =Actual measured value of test temperature.(°C)

t0=Actual measured value of standard temperature.(°C)

7.2 Voltage characteristics

In standard temperature silicone oil ( or same quality liquid ), resistance value will be

measured at 1/10 of the rated voltage, and then at the rated voltage.

However the time of voltage application will be 3 seconds less.

And the voltage will not be applied more than once every 10 seconds.

R variation will be calculated according to the following formula.

The variation will be satisfied Table 1.

△R = (Rs-Ro)/Ro×100

Rs = Resistance measured at 1/10 rated voltage.

Ro = Resistance measured at rated voltage.

5

Jan 2019

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