RURD4120 Fairchild Semiconductor, RURD4120 Datasheet - Page 2

• Manufacturer Part Number: RURD4120
• Description: 4a, 1200v Ultrafast Diodes
• Manufacturer: Fairchild Semiconductor

©2002 Fairchild Semiconductor Corporation
Electrical Specifications
Typical Performance Curves
DEFINITIONS
R
Q
FIGURE 1. FORWARD CURRENT vs FORWARD VOLTAGE
θJC
RR
pw = Pulse width.
V
C
I
t
t
t
0.5
D = Duty cycle.
R
F
rr
a
b
20
10
J
1
= Instantaneous forward voltage (pw = 300µs, D = 2%).
= Instantaneous reverse current.
= Reverse recovery time (See Figure 9), summation of t
= Time to reach peak reverse current (See Figure 9).
= Time from peak I
= Reverse recovery time.
= Junction capacitance.
= Thermal resistance junction to case.
SYMBOL
0
R
Q
V
C
I
t
θJC
t
t
RR
R
rr
a
b
F
J
0.5
175
V
F
o
RM
, FORWARD VOLTAGE (V)
C
1
I
I
V
V
I
I
I
I
I
V
F
F
F
F
F
F
F
100
R
R
R
= 4A
= 4A, T
= 1A, dI
= 4A, dI
= 4A, dI
= 4A, dI
= 4A, dI
to projected zero crossing of I
= 1200V
= 1200V, T
= 10V, I
o
C
T
1.5
C
C
F
F
F
F
F
25
= 25
F
/dt = 200A/µs
/dt = 200A/µs
/dt = 200A/µs
/dt = 200A/µs
/dt = 200A/µs
= 150
o
= 0A
C
C
TEST CONDITION
o
= 150
C, Unless Otherwise Specified
o
2
C
o
C
2.5
RM
a
based on a straight line from peak I
+ t
3
b
.
0.001
0.01
FIGURE 2. REVERSE CURRENT vs REVERSE VOLTAGE
100
0.1
10
1
MIN
0
-
-
-
-
-
-
-
-
-
-
-
200
RM
TYP
335
V
40
28
15
through 25% of I
-
-
-
-
-
-
-
R
400
, REVERSE VOLTAGE (V)
100
175
25
600
o
o
o
C
C
C
MAX
100
500
2.1
1.9
70
90
3
-
-
-
-
RM
RURD4120, RURD4120S Rev. B
800
(See Figure 9).
1000
UNITS
o
C/W
µA
µA
nC
ns
ns
ns
ns
pF
V
V
1200