54-94-104MT..KB Series
9
Bulletin I27504 08/97
www.irf.com
Fig. 16 - Thermal Impedance Z
thJC
Characteristics
Fig. 17 - Gate Characteristics
0. 00 1
0. 0 1
0.1
1
10
0.001 0.01 0.1 1 10
Square Wave Pulse Duration (s)
thJC
Transient Thermal Impedance Z (K/W)
Per Junction
104MT..KB Series
94MT..KB Series
54MT..KB Series
Steady State Value
R = 1.05 K/W
R = 0.77 K/W
R = 0.69 K/W
(DC Operation)
thJC
thJC
thJC
0.1
1
10
100
0.001 0.01 0.1 1 10 100 1000
(b)
(a)
Rectangular gate pulse
(4)
(3)
(2) (1)
(1) PGM = 100 W, tp = 500 µs
(2) PGM = 50 W, tp = 1 ms
(3) PGM = 20 W, tp = 25 ms
(4) PGM = 10 W, tp = 5 ms
Instantaneous Gate Current (A)
Instantaneous Gate Voltage (V)
TJ = -40 °C
TJ = 25 °C
TJ = 125 °C
VGD
IGD
Frequency Limited by PG(AV)
rated di/dt: 20 V, 30 ohms
tr = 0.5 µs, tp >= 6 µs
<= 30% rated di/dt: 20 V, 65 ohms
tr = 1 µs, tp >= 6 µs
a) Recommended load line for
b) Recommended load line for
54/ 94/ 104MT..KB Series
