
IXZ308N120 
Z-MOS RF Power MOSFET 
V
DSS
I
D25
R
DS(on) 
P
DC 
= 1200 V 
= 
8.0 A 
= 
2.1 
= 
880 W 
Symbol 
Test Conditions 
Maximum Rat-
ings  
V
DSS
T
J
 = 25°C to 150°C  
1200  
V 
V
DGR
T
J
 = 25°C to 150°C; R
GS
 = 1 M
1200  
V
V
GS
Continuous 
±20  
V 
V
GSM
Transient 
±30  
V 
I
D25
T
c
 = 25°C  
8  
A 
I
DM
T
c
 = 25°C, pulse width limited by T
JM
40  
A 
I
AR
T
c
 = 25°C  
8  
A 
E
AR
T
c
 = 25°C  
TBD  
mJ 
dv/dt  
I
S
≤ 
I
DM
, di/dt 
≤ 
100A/
μ
s, V
DD
≤
 V
DSS
,  
T
j
≤
 150°C, R
G
 = 0.2
5   V/ns 
I
S
 = 0 
>200  V/ns 
P
DC
880  
W 
P
DHS
T
c
 = 25°C, Derate 4.4W/°C above 25°C 
440  
W 
P
DAMB
T
c
 = 25°C 
3.0 
W 
R
thJC
0.17 C/W 
R
thJHS
0.34  C/W 
min. 
typ. 
max. 
V
DSS
V
GS
 = 0 V, I
D
 = 4 ma 
1200  
V 
V
GS(th)
V
DS
 = V
GS
, I
D
 = 250
μΑ
3.5 
6.5 
V 
I
GSS
V
GS
 = ±20 V
DC
, V
DS
 = 0 
±100  
nA 
R
DS(on)
V
GS
 = 20 V, I
D
 = 0.5I
D25
Pulse test, t 
≤
 300
μ
S, duty cycle d 
≤
 2%  
2.1 
g
fs
V
DS
 = 50 V, I
D
 = 0.5I
D25
, pulse test 
10.1 
S 
T
J
-55 
+175  
°C   
T
JM 
175  
°C    
T
stg
-55 
+ 175 
°C     
T
L
1.6mm(0.063 in) from case for 10 s 
300  
°C      
Weight
3.5  
g 
I
DSS
V
DS
 = 0.8V
                 T
J
 = 25C 
V
GS
=0                              T
J 
=125C 
50 
1 
μ
A 
mA 
Features 
 
Isolated Substrate 
 
high isolation voltage (>2500V) 
 
excellent thermal transfer 
 
Increased temperature and power 
cycling capability   
 
IXYS advanced Z-MOS process 
 
Low gate charge and capacitances 
 
easier to drive 
 
faster switching 
 
Low R
DS(on)
 
Very low insertion inductance (<2nH) 
 
No beryllium oxide (BeO) or other 
hazardous materials  
Advantages 
 
Optimized for RF and high speed 
 
Easy to mount—no insulators needed 
 
High power density 
N-Channel Enhancement Mode Linear 175MHz RF MOSFET 
Lo Capacitance Z-MOS
Optimized for Linear Operation 
Ideal for Class AB & C, Broadcast & Communications Applications 
Ideal for Class C, D, & E Applications 
DRAIN
SG1
SG2
GATE
SD1
SD2
N-Channel Enhancement Mode Switch Mode RF MOSFET 
Low Capacitance Z-MOS
TM
 MOSFET Process 
Optimized for RF Operation