Datasheet > N2825TJ450

N2825TJ450

更新时间： 2023-12-06 20:13:21

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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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N2825TJ450 数据手册

Phase Control Thyristor Types N2825T#400 and N2825T#450

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

3.836808×10³

2.300401×10³

1.342680×10³

4.747030×10⁴

9.711908×10³

1.012675

0.2954374

0.06875831

t_p

D.C. Cathode Side Cooled

Term

r_p

0.01653008

5.315577

3.46899×10³

5.233210×10⁴

9.722513×10³

0.1404311

t_p

9.0 Reverse recovery ratings

(i) Q_rais based on 50% I_rmchord as shown in Fig. 1

Fig. 1

(ii) Q_rris based on a 150µs integration time i.e.

150µs

Q_rr= i_rr.dt

(iii)

t₁

K Factor =

t₂

Data Sheet. Types N2825T#400 to N2825T#450 Issue A3

Page 5 of 11

April, 2013

1 2 3 456 7 8...12

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