High power diode for medium frequency welding

Parameter

Symbol

Min

Max

Typ

Unit

Conditions

Average value of forward current

IF(AV)

6300

A

50Hz sinewave,180o conduction, Tc = 126 °C

RMS value of forward current

IF(RMS)

9890

A

Peak one cycle surge

(non repetitive) current

IFSM

70

kA

50Hz sinewave,180o conduction, Tj = Tjmax, VR = 0

I square t

I2 t

24500

kA2s

Tj = Tjmax

Peak forward voltage

VFM

1.14

V

Forward current 10 kA, Tjmax

Threshold voltage

VF(TO)

0.7

V

Tj = Tjmax

Forward slope resistance

rF

0.046

mΩ

Tj = Tjmax

Parameter

Symbol

Min

Max

Typ

Unit

Conditions

Operating temperature

Tj

-40

180

°C

Storage temperature

Tstg

-40

180

°C

Thermal resistance junction to case

Rth(j-c)

0.0048

°C/W

Double side cooled , DC

Thermal resistance junction to case

Rth(j-c)

0.0062

°C/W

Double side cooled, 180° sin

Thermal resistance case to sink

Rth(c-s)

0.0025

°C/W

Double side cooled, mounting surfaces smooth, flat and greased

Mounting force

F

40

60

kN

Weight

W

100

g

Analytical expression for  Zth(j-c)

Zth(j-c) ( t ) =   i   Ai · ( 1 - exp ( - t /  i ) )

i

1

2

3

Ai

1.0E-03

3.7E-03

1.7E-06

[°C/W]

i

2.0E-03

3.8E-02

8.0E-01

[s]