Datasheet > K0443LC650

K0443LC650

更新时间： 2023-12-06 20:13:10

品牌	Logo	应用领域
力特 - LITTELFUSE		开关
页数	文件大小	规格书
12页	550K
描述
中压应用对相控晶闸管提出了更高的要求。为了满足这些需求，我们开发了一系列针对中压应用和串联运行进行优化的晶闸管。随着电压的增加，开关损耗和关断时间也会增加，到达一定程度后会在线路频率应用中变得

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K0443LC650 数据手册

Type K0443L#600 to K0443L#650 Issue 2

9.0 Computer Modelling Parameters

9.1 Device Dissipation Calculations

T

R_th

−V_{T 0}+ V_{T 0}+ 4 ff ²r W_AV

W_AV=

I_AV=

and:

2 ff ²r

T = T_{j max}−T_Hs

Where V_T0=1.568V, r_T=2.428m,

R_th= Supplementary thermal impedance, see table below and

ff = Form factor, see table below.

Supplementary Thermal Impedance

Conduction Angle

30°

60°

90°

120°

180°

270°

d.c.

Square wave Double Side Cooled

Square wave Single Side Cooled

Sine wave Double Side Cooled

Sine wave Single Side Cooled

0.0480

0.0790

0.0415

0.0735

0.0436

0.0769

0.0394

0.0718

0.0413

0.0740

0.0378

0.0701

0.0388

0.0716

0.0355

0.0679

0.0360

0.0688

0.0320

0.0640

0.0345

0.0665

0.0320

0.0640

Form Factors

Conduction Angle

Square wave

Sine wave

30°

60°

90°

120°

1.732

1.879

180°

1.414

1.57

270°

d.c.

3.464

3.98

2.449

2.778

1.149

2.22

9.2 D.C. Thermal Impedance Calculation

p=n

−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.

_p

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

D.C. Double Side Cooled

Term

r_p

0.01771901

0.7085781

4.240625×10^-3

6.963806×10^-3

3.043661×10^-3

2.130842×10^-3

0.1435833

0.03615196

_p

D.C. Single Side Cooled

Term

r_p

0.03947164

4.090062

0.01022837

1.078983

8.789912×10^-3

4.235162×10^-3

1.907609×10^-3

1.240861×10^-3

0.08530917

0.01128791

_p

Data Sheet. Types K0443L#600 to K0443L#650 Issue 2

Page 4 of 12

January,2023

1 2 345 6 7...12

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