Datasheet > N1817QL140

N1817QL140

更新时间： 2023-12-06 20:13:26

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力特 - LITTELFUSE		/
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13页	880K
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Littelfuse提供业界最全面的标准相位控制晶闸管系列之一。器件电压范围在400V至6500V，适合用于线电压230V至1000V以上的应用（电压更高的应用现可使用我们的中压晶闸管系列）。

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N1817QL140 数据手册

Wespack Phase Control Thyristor Types N1817QL080 to N1817QL140

8.3 D.C. Thermal Impedance Calculation

p=n

-t

t _p

r = r × 1- e

p=1

Where p = 1 to n, n is the number of terms in the series and:

t = Duration of heating pulse in seconds.

r_t

= Thermal resistance at time t.

r_p= Amplitude of p_thterm.

= Time Constant of r_thterm.

t_p

The coefficients for this device are shown in the tables below:

D.C. Double Side Cooled

Term

r_p

0.01172636

0.7288979

4.471553×10³

4.759634×10³

2.027412×10³

3.174914×10³

0.1691487

0.0540350

t_p

D.C. Single Side Cooled

Term

r_p

6.516549×10³

0.03074297

4.000628

2.648739×10³

4.230842×10³

2.161992×10³

3.674937×10³

0.1822753

1.346204

0.05086185

t_p

Data Sheet. Types N1817QL080 to N1817QL140 Issue 1

Page 5 of 12

April, 2012

1 2 3 456 7 8...13

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