FFAF
3
0U
2
0
DN
Rev. A, March 2004
2004 Fairchild Semiconductor Corporation
Ultrafast Recovery Power Rectifier
Absolute Maximum Ratings
(per diode) T
C
=25
C unless otherwise noted
Thermal Characteristics
Electrical Characteristics
(per diode) T
C
=25
C unless otherwise noted
* Pulse Test: Pulse Width=300
s, Duty Cycle
=
2%
Symbol
Parameter
Value
Units
V
RRM
Peak Repetitive Reverse Voltage
200
V
I
F(AV)
Average Rectified Forward Current @ T
C
= 100
C
30
A
I
FSM
Non-repetitive Peak Surge Current
60Hz Single Half-Sine Wave
300
A
T
J,
T
STG
Operating Junction and Storage Temperature
- 65 to +150
C
Symbol
Parameter
Value
Units
R
JC
Maximum Thermal Resistance, Junction to Case
1.6
C/W
Symbol
Parameter
Min.
Typ.
Max.
Units
V
FM
*
Maximum Instantaneous Forward Voltage
I
F
= 30A
I
F
= 30A
T
C
= 25
C
T
C
= 100
C
-
-
-
-
1.2
1.0
V
I
RM
*
Maximum Instantaneous Reverse Current
@ rated V
R
T
C
= 25
C
T
C
= 100
C
-
-
-
-
30
300
A
t
rr
I
rr
Q
rr
Maximum Reverse Recovery Time
Maximum Reverse Recovery Current
Maximum Reverse Recovery Charge
(I
F
=30A, di/dt = 200A/
s)
-
-
-
-
-
-
40
4.0
80
ns
A
nC
W
AVL
Avalanche Energy
0.5
-
-
mJ
FFAF30U20DN
Features
Ultrafast with soft recovery
Low forward voltage
Applications
Power switching circuits
Output rectifiers
Freewheeling diodes
Switching mode power supply
TO-3PF
1 2 3
1. Anode 2.Cathode 3. Anode
Rev. A, March 2004
FFAF
3
0U
2
0
DN
2004 Fairchild Semiconductor Corporation
Typical Characteristics
Typical Characteristics
Figure 1. Typical Forward Voltage Drop
vs. Forward Current
Figure 3. Typical Junction Capacitance
Figure 5. Typical Reverse Recovery Current
vs. di/dt
Figure 2. Typical Reverse Current
vs. Reverse Voltage
Figure 4. Typical Reverse Recovery Time
vs. di/dt
Figure 6. Forward Current Derating Curve
0.1
1
10
80
0.0
0.5
1.0
1.5
2.0
T
C
= 25
o
C
T
C
= 100
o
C
Forward Voltage , V
F
[V]
F
o
rwa
r
d
C
u
rre
n
t
,
I
F
[A
]
0.1
1
10
100
200
400
600
800
1000
Typical Capacitance
at 0V = 856 pF
C
a
p
a
c
i
tan
c
e , C
j
[pF
]
Reverse Voltage , V
R
[V]
100
500
0
1
2
3
4
5
6
7
8
I
F
= 30A
T
C
= 25
o
C
R
e
ve
rse
R
e
co
ve
ry
C
u
rre
n
t
,
I
rr
[A
]
di/dt [A/
s]
0
50
100
150
200
0.001
0.01
0.1
1
10
100
1000
T
C
= 100
o
C
T
C
= 25
o
C
Re
v
e
rs
e
C
u
rre
n
t
,
I
R
[
A]
Reverse Voltage , V
R
[V]
100
500
40
50
60
70
80
90
100
I
F
= 10A
T
C
= 25
o
C
R
e
v
e
r
s
e
Re
co
ve
r
y
T
i
me
, t
rr
[n
s]
di/dt [A/
s]
100
500
20
25
30
35
40
45
50
I
F
= 30A
Tc = 25
o
C
R
e
ve
r
s
e
R
e
co
ve
ry
T
i
m
e
,
t
rr
[n
s
]
di/dt [A/
s]
60
80
100
120
140
160
0
10
20
30
40
50
DC
Av
er
a
ge F
o
r
w
a
r
d Cu
r
r
e
n
t
,
I
F(
A
V
)
[A
]
Case Temperature , T
C
[
o
C]
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY
ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT
CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant into
the body, or (b) support or sustain life, or (c) whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
user.
2. A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Definition
Advance Information
Preliminary
No Identification Needed
Obsolete
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Formative or
In Design
First Production
Full Production
Not In Production
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