PD-2.039 rev. D 12/97
30FQ... SERIES
SCHOTTKY RECTIFIER
30 Amp
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
range
I
FSM
@ tp = 5 µs sine
V
F
T
J
@ 30 Apk, T
J
=125°C
range
35 to 45
9600
0.54
- 65 to 175
V
Description/Features
Units
A
The 30FQ Schottky rectifier series has been optimized for low
reverse leakage at high temperature. The proprietary barrier
technology allows for reliable operation up to 175 °C junction
temperature. Typical applications are in switching power
supplies, converters, free-wheeling diodes, and reverse
battery protection.
175°C T
J
operation
A
V
°C
Low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Hermetic packaging
30FQ...
30
CASE STYLE AND DIMENSIONS
Conforms to JEDEC Outline DO-203AA (DO-4)
Dimensions in millimeters and inches
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1
30FQ... Series
PD-2.039 rev. D
12/97
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
35
40
45
V
RWM
Max. Working Peak Reverse Voltage (V)
30FQ035
30FQ040
30FQ045
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward Current
* See Fig. 5
I
FSM
E
AS
I
AR
Max. Peak One Cycle Non-Repetitive
Surge Current * See Fig. 7
Non-Repetitive Avalanche Energy
Repetitive Avalanche Current
30FQ
30
9600
640
40
6
Units
A
Conditions
50% duty cycle @ T
C
= 144 °C, rectangular wave form
5µs Sine or 3µs Rect. pulse
Following any rated
load condition and
with rated V
RRM
applied
A
mJ
A
10ms Sine or 6ms Rect. pulse
T
J
= 25 °C, I
AS
= 6 Amps, L = 2.2 mH
Current decaying linearly to zero in 1 µsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
* See Fig. 1
(1)
30FQ
0.64
0.75
0.54
0.64
Units
V
V
V
V
mA
mA
pF
nH
V/ µs
@ 30A
@ 60A
@ 30A
@ 60A
T
J
= 25 °C
T
J
= 125 °C
Conditions
T
J
= 25 °C
T
J
= 125 °C
V
R
= rated V
R
I
RM
C
T
L
S
Max. Reverse Leakage Current (1)
* See Fig. 2
Max. Junction Capacitance
Typical Series Inductance
4
35
1850
6.5
10,000
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25 °C
Measured from top of terminal to mounting plane
dv/dt Max. Voltage Rate of Change
(Rated V
R
)
(1) Pulse Width < 300µs, Duty Cycle < 2%
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Junction Temperature Range
Max. Storage Temperature Range
30FQ
-65 to 175
-65 to 175
1.25
0.50
Units
°C
°C
°C/W
°C/W
DCoperation
Conditions
R
thJC
Max. Thermal Resistance Junction
to Case
R
thCS
Typical Thermal Resistance, Case to
Heatsink
wt
T
Approximate Weight
Mounting Torque
Case Style
Min.
Max.
* See Fig. 4
Mounting surface, smooth and greased
5.8 (0.20) g (oz.)
14 (12)
23 (20)
Kg-cm
Non-lubricated threads
(Ibf-in)
DO-203AA(DO-4) JEDEC
2
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30FQ... Series
PD-2.039 rev. D
12/97
10
00
10
00
10
0
1
0
1
.
1
.0
1
.0 1
0
0
T =1 5 C
7°
J
1 0C
5°
1 5C
2°
1 0C
0°
7°
5C
5°
0C
2°
5C
10
0
I sa ta e u F r a dC rr n - I (A
n t n n o s ow r u e t
)
F
R v r eC rr n - I ( A
e es u e t
m)
R
5
1 1 2 2 3 3 4 4
0 5 0 5 0 5 0 5
R v r eV lta e- V (V
e es o g
R )
1
0
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
T =1 5 C
7°
J
J n tio C p cita c - C (p )
u c n a a ne
F
T
100
00
T =1 5 C
2°
J
T= 2 °
5C
J
1
T =2 °
5C
J
10
00
.
1
0
.1 .2 .3 .
4 .
5 .
6 .
7 .
8 .9
F r a dV lta e D p- V ( )
o w r o g ro
V
F
M
1 1 1
.1 .2
10
0
0
1
0
2
0
3
0
4
0
5
0
R v r eV lt g - V ( )
e es o a e
V
R
Fig. 1 - Maximum Forward Voltage Drop Characteristics
1
0
T e m l Im e a c - Z
h r a p d ne
(° / )
CW
th C
J
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
1
.1
D=0 0
.5
D=0 3
.3
D=0 5
.2
D=0 7
.1
D=0 8
.0
P
M
D
t
1
t2
N te :
o s
1 D t fa to D= t1/ t 2
. uy c r
.0
1
S g P ls
in le u e
( h r a R s ta c )
T e m l e is n e
. 0
01
.0 0 1
00
.0 0
01
. 0
01
. 1
0
.1
2 P a T =P x Z
. ek
+T
J D
M t J
hC C
1
1
0
10
0
t1, R c n u r P ls D r t n(S c n s
e ta g la u e u aio
eo d )
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics
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3
30FQ... Series
PD-2.039 rev. D
12/97
10
8
A w b C s T m eau e-( C
llo a le a e e p r t r
° )
3F
0Q
R J ( C =1 5C
.2 ° /W
th C D )
2
5
D=0 8
.0
D=0 7
.1
D=0 5
.2
D=0 3
.3
D=0 0
.5
A ea eP w r L s - ( a s
v r g o e o s W tt )
2
0
10
7
1
5
R SL it
M im
1
0
D
C
10
6
D
C
10
5
5
10
4
0
1
0
2
0
3
0
4
0
5
0
0
0
5
1 1 2 2 3 3 4 4
0 5 0 5 0 5 0 5
A ea eF r a C r n - IF A ) ( )
v r g o w rd u re t
( V A
A e g F r adC r n - I
v ra e o w r u re t
(A
)
F V
(A )
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
10000
FSM
Fig. 6 - Forward Power Loss Characteristics
Non-Repetitive Surge Current - I
(A)
1000
At Any Rated Load Condition
And With Rated V
RRM
Applied
Following Surge
100
10
100
1000
10000
Square Wave Pulse Duration - t
p
(microsec)
Fig. 7 - Maximum Non-Repetitive Surge Current
L
HIGH-SPEED
SWITCH
FREE-WHEEL
DIODE
40HFL40S02
Vd = 25 Volt
DUT
IRFP460
Rg = 25 ohm
+
CURRENT
MONITOR
Fig. 8 - Unclamped Inductive Test Circuit
4
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