Preliminary Data Sheet PD-20683 09/04
50WQ10G
SCHOTTKY RECTIFIER
5.5 Amp
I
F(AV)
= 5.5Amp
V
R
= 100V
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 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
Values
5.5
100
480
0.63
- 40 to 150
Case Styles
50WQ10G
Base
Cathode
4, 2
1
3
Anode
Anode
D-PAK
1
50WQ10G
Preliminary Data Sheet PD-20683 09/04
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
50WQ10G
100
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward Current
* See Fig. 5
I
FSM
Max. Peak One Cycle Non-Repetitive
Surge Current * See Fig. 7
Following any rated load condi-
tion and with rated V
RRM
applied
E
AS
I
AR
Non-Repetitive Avalanche Energy
Repetitive Avalanche Current
300
100
480
165
6.0
0.5
mJ
A
A
3µs Sine or 3µs Rect. pulse
6ms Sine or 6ms Rect. pulse
3µs Sine or 3µs Rect. pulse
6ms Sine or 6ms Rect. pulse
One anode pin
connected
Two anode pins
connected
50WQ...
5.5
Units Conditions
A
50% duty cycle @ T
C
= 135°C, rectangular wave form
T
J
= 25 °C, I
AS
= 0.5 Amps, L = 40 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...
0.77
0.91
0.63
0.74
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)
0.22
4
0.47
21.46
183
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
50WQ10G
Similar to TO-252AA
thermal runaway condition for a diode on its own heatsink
2
50WQ10G
Preliminary Data Sheet PD-20683 09/04
1000
100
10
1
0.1
0.01
0.001
0.0001
T
J
= 150°C
125°C
100°C
75°C
50°C
25°C
Instantaneous F
orward Current - I
F
(A)
100
R
everse Current - I
R
(mA)
0
10 20 30 40 50 60 70 80 90 100
Reverse Voltage - V
R
(V)
T
J
= 150°C
T
J
= 125°C
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
1000
Junction Capacitanc e - C
T
(pF)
T
J
= 25°C
10
T
J
= 25°C
100
1
0
0.5
1
1.5
2
2.5
3
3.5
10
0
20
40
60
80
100
Forward Voltage Drop - V
FM
(V)
Reverse Voltage - V
R
(V)
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 R
esistance)
0.01
0.00001
0.0001
0.001
0.01
t1
t2
1. Duty factor D = t 1/ t 2
2. Peak T = P
DM
x Z
thJC
+ T
C
J
0.1
1
t 1 , Rectangular Pulse Duration (S
econds)
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics
3
50WQ10G
Preliminary Data Sheet PD-20683 09/04
150
Allowable Case T
emperature - (°C)
5.5
5
Average Power Loss - (Watts)
4.5
4
3.5
3
2.5
2
1.5
1
0.5
3
4
5
6
7
8
145
DC
140
135
130
125
see note (2)
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
RMSLimit
DC
S
quare wave (D = 0.50)
80% Rated V
R
applied
120
0
1
2
0
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
Non-Repetitive Surge Current - I
FSM
(A)
Fig. 6 - Forward Power Loss Characteristics
1000
2 anode pins connected
100
1 anode pin connected
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
4
50WQ10G
Preliminary Data Sheet PD-20683 09/04
Outline Table
2.38 (0.09)
6.73 (0.26)
6.35 (0.25)
5.46 (0.21)
5.21 (0.20)
4
2.19 (0.08)
1.27 (0.05)
0.88 (0.03)
1.14 (0.04)
0.89 (0.03)
0.58 (0.02)
0.46 (0.02)
MINIMUM RECOMMENDED FOOTPRINT
5.97 (0.24)
6.45 (0.24)
6.22 (0.24)
1.64 (0.02)
1
2
3
5.68 (0.22)
10.42 (0.41)
9.40 (0.37)
0.51 (0.02)
MIN.
6.48 (0.26)
10.67 (0.42)
5.97 (0.23)
1.52 (0.06)
1.15 (0.04)
2x
1.14 (0.04)
0.76 (0.03)
2.28 (0.09)
2x
4.57 (0.18)
3x
0.89 (0.03)
0.64 (0.02)
1
2
3
4
- Anode
- Cathode
- Anode
- Cathode
2x
2.54 (0.10)
1.65 (0.06)
2x
2.28 (0.09)
2x
0.58 (0.02)
0.46 (0.02)
Base
Cathode
4, 2
Modified JEDEC outline TO-262AA
Dimensions in millimeters and (inches)
1
3
Anode
Anode
Marking Information
THIS IS A 50WQ10G WITH
LOT CODE 5K3A
ASSEMBLED ON WW 12, 2000
IN ASSEMBLY LINE "A"
INTERNATIONAL
RECTIFIER
LOGO
ASSEMBLY
LOT CODE
50WQ10G
DATE CODE
YEAR 0 = 2000
WEEK 12
LINE A
5
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