Bulletin PD-21092 rev. B 08/06
50WQ04FNPbF
SCHOTTKY RECTIFIER
5.5 Amp
I
F(AV)
= 5.5Amp
V
R
= 40V
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
I
FSM
@ tp = 5
μs
sine
V
F
T
J
@ 5 Apk, T
J
= 125°C
range
Description/ Features
Units
A
V
A
V
°C
The 50WQ04FNPbF 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 moutable
Low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Lead-Free ("PbF" suffix)
Values
5.5
40
340
0.44
- 40 to 150
Case Styles
Base
Cathode
4, 2
1
3
Anode
Anode
D-PAK (TO-252AA)
Document Number: 94233
www.vishay.com
1
50WQ04FNPbF
Bulletin PD-21092 rev. B 08/06
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
40
V
RWM
Max. Working Peak Reverse Voltage (V)
50WQ04FNPbF
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
550
90
9
1.2
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
50WQ...
5.5
Units
A
Conditions
50% duty cycle @ T
C
= 135°C, rectangular wave form
T
J
= 25 °C, I
AS
= 1.5 Amps, L = 8 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)
50WQ...
0.51
0.63
0.44
0.59
Units
V
V
V
V
mA
mA
V
mΩ
Conditions
@
@
5A
5A
@ 10A
@ 10A
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)
3
40
0.27
26.77
405
5.0
V
F(TO)
Threshold Voltage
r
t
C
T
L
S
Forward Slope Resistance
Typical Junction Capacitance
Typical Series Inductance
pF
nH
V
R
= 5V
DC
(test signal range 100Khz to 1Mhz) 25 °C
Measured lead to lead 5mm from package body
(1) Pulse Width < 300μs, Duty Cycle < 2%
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Storage Temperature Range
50WQ... Units
°C
°C
-40 to 150
3.0
Conditions
Max. Junction Temperature Range (*) -40 to 150
R
thJC
Max. Thermal Resistance
Junction to Case
wt
Approximate Weight
Case Style
Device Marking
(*) dPtot
dTj
<
1
Rth( j-a)
°C/W DC operation
* See Fig. 4
0.3 (0.01) g (oz.)
D-Pak
50WQ04FN
Similar to TO-252AA
thermal runaway condition for a diode on its own heatsink
Document Number: 94233
www.vishay.com
2
50WQ04FNPbF
Bulletin PD-21092 rev. B 08/06
100
100
T
J
= 150°C
Reverse Current - I
R
(mA)
10
125°C
100°C
1
75°C
50°C
0.1
Ins
tantaneous Forward Current - I
F
(A)
0.01
25°C
T
J
= 150°C
T
J
= 125°C
10
T
J
= 25°C
0.001
0
5
10
15
20
25
30
35
40
Revers Voltage - V
R
(V)
e
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
1000
Junction Capacitance - C
T
(pF)
T
J
= 25°C
1
0
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 40 45
Forward Voltage Drop - V
FM
(V)
Revers Voltage - V
R
(V)
e
Fig. 1 - Maximum Forward Voltage Drop Characteristics
10
T
hermal Impedance 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
0.1
Notes:
S
ingle Pulse
(T
hermal Resistance)
0.01
0.00001
0.0001
0.001
0.01
t1
t2
1. Duty factor 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
econds)
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics
Document Number: 94233
www.vishay.com
3
50WQ04FNPbF
Bulletin PD-21092 rev. B 08/06
155
Allowable Case T
emperature - (°C)
4
Average Power Loss - (Wat ts)
3.5
3
2.5
2
1.5
1
0.5
0
0
1
2
3
4
5
6
7
8
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
RMSLimit
DC
150
145
140
135
130
125
see note (2)
DC
S
quare wave (D = 0.50)
80% Rated V
R
applied
120
0
1
2
3
4
5
6
7
8
Average Forward Current - I
F(AV)
(A)
Average Forward Current - I
F(AV)
(A)
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
Non-Repetitive Surge Current - I
FSM
(A)
1000
100
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
10
10
100
1000
10000
Square 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: 94233
www.vishay.com
4
50WQ04FNPbF
Bulletin PD-21092 rev. B 08/06
Outline Table
Modified JEDEC outline TO-252AA
Dimensions in millimeters and (inches)
Part Marking Information
THIS IS A 50WQ04FN
INTERNATIONAL
RECTIFIER
LOT CODE 8024
LOGO
ASSEMBLED ON WW 02, 2003
ASSEMBLY
LOT CODE
PART NUMBER
50WQ04FN
DATE CODE
P = LEAD-FREE
YEAR 3 = 2003
WEEK 02
X = SITE ID
Document Number: 94233
www.vishay.com
5
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