Bulletin PD-20559 rev. G 05/06
30WQ03FN
SCHOTTKY RECTIFIER
3.5 Amp
I
F(AV)
= 3.5Amp
V
R
= 30V
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
I
FSM
@ tp = 5
μs
sine
V
F
T
J
@ 3 Apk, T
J
= 125°C
range
Description/ Features
Units
A
V
A
V
°C
The 30WQ03FN surface mount Schottky rectifier has been
designed for applications requiring low forward drop and
small foot prints on PC board. Typical applications are in disk
drives, switching power supplies, converters, free-wheeling
diodes, battery charging, and reverse battery protection.
Popular D-PAK outline
Small foot print, surface mountable
Low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Values
3.5
30
535
0.35
- 40 to 150
Case Styles
Base
Cathode
4, 2
1
Anode
Anode
3
D-PAK (TO-252AA)
Document Number: 93312
www.vishay.com
1
30WQ03FN
Bulletin PD-20559 rev. G 05/06
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
30
V
RWM
Max. Working Peak Reverse Voltage (V)
30WQ03FN
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
535
90
8
1.0
A
mJ
A
5μs Sine or 3μs Rect. pulse
10ms Sine or 6ms Rect. pulse
Following any rated
load condition and with
rated V
RRM
applied
30WQ...
3.5
Units
A
Conditions
50% duty cycle @ T
C
= 134°C, rectangular wave form
T
J
= 25 °C, I
AS
= 2 Amps, L = 4 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)
30WQ...
0.45
0.52
0.35
0.46
Units
V
V
V
V
mA
mA
V
mΩ
Conditions
@ 3A
@ 6A
@ 3A
@ 6A
T
J
= 25 °C
T
J
= 125 °C
T
J
= T
J
max.
T
J
= 25 °C
T
J
= 125 °C
V
R
= rated V
R
I
RM
Max. Reverse Leakage Current
* See Fig. 2
(1)
2
50
0.22
32.86
290
5.0
10000
V
F(TO)
Threshold Voltage
r
t
C
T
L
S
Forward Slope Resistance
Typical Junction Capacitance
Typical Series Inductance
pF
nH
V/μs
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25 °C
Measured lead to lead 5mm from package body
(Rated V
R
)
(1) Pulse Width < 300μs, Duty Cycle < 2%
dv/dt Max. Voltage Rate of Change
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Storage Temperature Range
30WQ... Units
°C
°C
°C/W DC operation
g (oz.)
-40 to 150
4.7
0.3 (0.01)
D - PAK
30WQ03FN
Conditions
Max. Junction Temperature Range (*) -40 to 150
R
thJC
Max. Thermal Resistance Junction
to Case
wt
Approximate Weight
Case Style
Marking Device
(*) dPtot
dTj
<
1
Rth( j-a)
* See Fig. 4
Similar to TO-252AA
thermal runaway condition for a diode on its own heatsink
Document Number: 93312
www.vishay.com
2
30WQ03FN
Bulletin PD-20559 rev. G 05/06
100
100
T
J
= 150°C
R
everse Current - I
R
(mA)
10
125°C
100°C
1
75°C
50°C
0.1
Instantaneous Forward Current - I
F
(A)
0.01
25°C
0.001
5
10
15
20
25
30
10
Reverse Voltage - V
R
(V)
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
1000
Junction Capacitance - C
T
(pF)
T
J
= 150°C
T
J
= 125°C
T
J
= 25°C
T
J
= 25°C
1
0.2 0.4 0.6 0.8
1
1.2 1.4 1.6 1.8
2
2.2
100
0
5
10
15
20
25
30
35
R
everse Voltage - V
R
(V)
F
orward Voltage Drop - V
FM
(V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
10
T
hermal Impedanc e Z
thJC
(°C/ W)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
1
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
P
DM
t1
Notes:
S
ingle Pulse
(T
hermal R
esistance)
0.1
0.00001
0.0001
0.001
0.01
t2
1. Duty fac tor D = t 1/ t 2
2. Peak T = P x Z
thJC
+ T
C
J
DM
0.1
1
t 1 , Rectangular Pulse Duration (S onds)
ec
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics
Document Number: 93312
www.vishay.com
3
30WQ03FN
Bulletin PD-20559 rev. G 05/06
150
Allowable Case T
emperature - (°C)
2.2
2
Average Power Loss - (Watts)
DC
145
140
135
130
125
see note (2)
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
R Limit
MS
DC
S
quare wave (D = 0.50)
80% Rated V
R
applied
120
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Average Forward Current - I
F(AV)
(A)
1
2
3
4
5
Average Forward Current - I
F(AV)
(A)
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
1000
Fig. 6 - Forward Power Loss Characteristics
Non-R
epetitive S
urge Current - I
FS
(A)
M
100
At Any Rated Load Condition
And With Rated V
RRM
Applied
Following S
urge
10
10
100
1000
10000
S
quare Wave Pulse Duration - t p (microsec)
Fig. 7 - Maximum Non-Repetitive Surge Current
(2)
Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward Power Loss = I
F(AV)
x V
FM
@ (I
F(AV)
/
D) (see Fig. 6);
Pd
REV
= Inverse Power Loss = V
R1
x I
R
(1 - D); I
R
@ V
R1
= 80% rated V
R
Document Number: 93312
www.vishay.com
4
30WQ03FN
Bulletin PD-20559 rev. G 05/06
Outline Table
Modified JEDEC outline TO-252AA
Dimensions in millimeters and (inches)
Part Marking Information
THIS IS A 30WQ03FN
INTERNATIONAL
RECTIFIER
LOT CODE 8024
LOGO
ASSEMBLED ON WW 02, 2000
ASSEMBLY
LOT CODE
PART NUMBER
30WQ03FN
DATE CODE
YEAR 0 = 2000
WEEK 02
X = SITE ID
Document Number: 93312
www.vishay.com
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