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SCHOTTKY RECTIFIER
5.5 Amp
50WQ10G
Preliminary Data Sheet PD-20683 09/04
1
Major Ratings and Characteristics
I
F(AV)
Rectangular
5.5
A
waveform
V
RRM
100
V
I
FSM
@ tp = 5 s sine
480
A
V
F
@
5 Apk, T
J
= 125C
0.63
V
T
J
range
- 40 to 150
C
Characteristics
Values
Units
Description/ Features
The 50WQ10G 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
Case Styles
50WQ10G
D-PAK
I
F(AV)
= 5.5Amp
V
R
= 100V
Anode
1
3
Base
Cathode
Anode
4, 2
50WQ10G
Preliminary Data Sheet PD-20683 09/04
2
I
F(AV)
Max. Average Forward Current
5.5
A
50% duty cycle @ T
C
= 135C, rectangular wave form
* See Fig. 5
I
FSM
Max. Peak One Cycle Non-Repetitive
300
3s Sine or 3s Rect. pulse
Surge Current * See Fig. 7
100
6ms Sine or 6ms Rect. pulse
480
3s Sine or 3s Rect. pulse
165
6ms Sine or 6ms Rect. pulse
E
AS
Non-Repetitive Avalanche Energy
6.0
mJ
T
J
= 25 C, I
AS
= 0.5 Amps, L = 40 mH
I
AR
Repetitive Avalanche Current
0.5
A
Current decaying linearly to zero in 1 sec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Part number
50WQ10G
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
Voltage Ratings
V
FM
Max. Forward Voltage Drop
0.77
V
@ 5A
* See Fig. 1
(1)
0.91
V
@ 10A
0.63
V
@ 5A
0.74
V
@ 10A
I
RM
Max. Reverse Leakage Current
0.22
mA
T
J
= 25 C
* See Fig. 2
(1)
4
mA
T
J
= 125 C
V
F(TO)
Threshold Voltage
0.47
V
T
J
= T
J
max.
r
t
Forward Slope Resistance
21.46
m
C
T
Typical Junction Capacitance
183
pF
V
R
= 5V
DC
(test signal range 100Khz to 1Mhz) 25 C
L
S
Typical Series Inductance
5.0
nH
Measured lead to lead 5mm from package body
T
J
= 25 C
T
J
= 125 C
V
R
= rated V
R
Electrical Specifications
Parameters
50WQ...
Units
Conditions
(1) Pulse Width < 300s, Duty Cycle < 2%
100
Absolute Maximum Ratings
Following any rated load condi-
tion and with rated V
RRM
applied
A
Parameters
50WQ... Units Conditions
<
thermal runaway condition for a diode on its own heatsink
(*) dPtot
1
dTj
Rth( j-a)
T
J
Max. Junction Temperature Range (*) -40 to 150
C
T
stg
Max. Storage Temperature Range
-40 to 150
C
R
thJC
Max. Thermal Resistance
3.0
C/W DC operation
* See Fig. 4
Junction to Case
wt
Approximate Weight
0.3 (0.01) g (oz.)
Case Style
D-Pak
Similar to TO-252AA
Device Marking
50WQ10G
Thermal-Mechanical Specifications
Parameters
50WQ... Units
Conditions
One anode pin
connected
Two anode pins
connected
50WQ10G
Preliminary Data Sheet PD-20683 09/04
3
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics
Fig. 1 - Maximum Forward Voltage Drop Characteristics
0.0001
0.001
0.01
0.1
1
10
100
0 10 20 30 40 50 60 70 80 90 100
R
R
125C
100C
75C
50C
25C
Reverse Voltage - V (V)
Re
v
e
r
s
e
C
u
r
r
e
n
t
-
I
(
m
A
)
T = 150C
J
10
100
1000
0
20
40
60
80
100
T = 25C
J
R
T
J
u
n
c
t
i
o
n
C
a
p
a
c
i
t
a
n
c
e
-
C
(
p
F
)
Reverse Voltage - V (V)
0.01
0.1
1
10
0.00001
0.0001
0.001
0.01
0.1
1
th
J
C
t , Rectangular Pulse Duration (Seconds)
Single Pulse
(Thermal Resistance)
1
T
h
e
r
m
a
l
I
m
pe
d
anc
e Z
(
C/
W
)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
J
DM
thJC
C
1
2
2
t
1
t
P
DM
1
10
100
1000
0
0.5
1
1.5
2
2.5
3
3.5
I
n
s
t
an
tan
e
o
u
s
F
o
r
w
ar
d C
u
r
r
e
n
t
-
I
(
A
)
F
FM
Forward Voltage Drop - V (V)
T = 150C
T = 125C
T = 25C
J
J
J
50WQ10G
Preliminary Data Sheet PD-20683 09/04
4
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
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
120
125
130
135
140
145
150
0
1
2
3
4
5
6
7
8
DC
A
l
l
o
wab
l
e
C
a
s
e
T
e
m
p
e
r
at
u
r
e -
(
C
)
F(AV)
see note (2)
Square wave (D = 0.50)
80% Rated V applied
R
Average Forward Current - I (A)
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
1
2
3
4
5
6
7
8
DC
A
v
e
r
age
P
o
w
e
r
L
o
s
s
-
(
W
att
s
)
F(AV)
RMS Limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
Average Forward Current - I (A)
Square Wave Pulse Duration - t
p
(microsec)
Non-Repetitive Surge Current - I
FSM
(A)
10
100
1000
10
100
1000
10000
1 anode pin connected
2 anode pins connected
50WQ10G
Preliminary Data Sheet PD-20683 09/04
5
LOT CODE 5K3A
ASSEMBLED ON WW 12, 2000
IN ASSEMBLY LINE "A"
INTERNATIONAL
RECTIFIER
ASSEMBLY
LOT CODE
LOGO
DATE CODE
YEAR 0 = 2000
WEEK 12
LINE A
THIS IS A 50WQ10G WITH
50WQ10G
6.73 (0.26)
6.35 (0.25)
5.46 (0.21)
5.21 (0.20)
4
1.27 (0.05)
0.88 (0.03)
5.97 (0.23)
1 - Anode
2 - Cathode
3 - Anode
4 - Cathode
1.64 (0.02)
1.52 (0.06)
1.15 (0.04)
1.14 (0.04)
0.76 (0.03)
2x
2.28 (0.09)
2x
0.89 (0.03)
0.64 (0.02)
3x
4.57 (0.18)
1
2
3
6.22 (0.24)
2.38 (0.09)
2.19 (0.08)
6.45 (0.24)
5.68 (0.22)
10.42 (0.41)
9.40 (0.37)
0.46 (0.02)
0.58 (0.02)
1.14 (0.04)
0.89 (0.03)
0.51 (0.02)
MIN.
0.58 (0.02)
0.46 (0.02)
MINIMUM RECOMMENDED FOOTPRINT
5.97 (0.24)
10.67 (0.42)
1.65 (0.06)
6.48 (0.26)
2x
2.54 (0.10)
2x
2.28 (0.09)
2x
Outline Table
Modified JEDEC outline TO-262AA
Dimensions in millimeters and (inches)
Anode
1
3
Base
Cathode
Anode
4, 2
Marking Information
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