Bulletin PD-21139 05/06
50UQ03GPbF
SCHOTTKY RECTIFIER
5.5 Amp
I
F(AV)
= 5.5Amp
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
@ 5 Apk, T
J
= 125°C
range
Description/ Features
Units
A
V
A
V
°C
The 50UQ03GPbF I-PAK 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.
150°C T
J
operation
Unique I-PAK outline
Center tap configuration
Small foot print
Low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Lead-Free ("PbF" suffix)
Values
5.5
30
240
0.35
- 40 to 150
Case Styles
Base
Cathode
4, 2
1
3
Anode
Anode
I-PAK (TO-251)
Document Number: 94231
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50UQ03GPbF
Bulletin PD-21139 05/06
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
50UQ03GPbF
30
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
240
100
10
2.0
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
50UQ...
5.5
Units
A
Conditions
50% duty cycle @ T
C
= 136°C, rectangular wave form
T
J
= 25 °C, I
AS
= 2.0 Amps, L = 5 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)
50UQ...
0.46
0.53
0.39
0.48
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)
1.1
58
0.19
22.22
590
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
50UQ... Units
°C
°C
-40 to 150
3.0
0.3 (0.01)
I-Pak
50UQ03G
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
g (oz.)
* See Fig. 4
Similar to TO-251SL
thermal runaway condition for a diode on its own heatsink
Document Number: 94231
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50UQ03GPbF
Bulletin PD-21139 05/06
100
1000
100
10
1
0.1
0.01
0.001
T
J
= 150°C
125°C
100°C
75°C
50°C
25°C
Instantaneous Forward Curent - I
F
(A)
Reverse Curent - I
R
(mA)
0
5
10
15
20
25
30
10
Reverse Voltage - V
R
(V)
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
1000
Junct ion Ca pacitanc e - C
T
(pF)
T
J
= 25°C
Tj = 150˚C
Tj = 125˚C
Tj = 25˚C
1
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Forward Voltage Drop - V
FM
(V)
100
1
1.1
0
5
10
15
20
25
30
35
Reverse Voltage - V
R
(V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
10
Thermal Impedance Z
thJC
(°C/W)
1
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
P
DM
t1
Single Pulse
(Thermal Resistance)
t2
Notes:
1. Duty factor D = t1/ t2
2. Peak Tj = Pdm x ZthJC + Tc
0.1
0.0001
0.001
0.01
0.1
t
1
, Rectangular Pulse Duration (Seconds)
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics
1
Document Number: 94231
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3
50UQ03GPbF
Bulletin PD-21139 05/06
150
Allowable Lead Temperature (°C)
3.5
145
140
135
Square wave (D = 0.50)
Average Power Loss (Watts)
DC
3
2.5
2
1.5
1
0.5
0
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
RMSLimit
DC
130
80% Rated Vr applied
125
see note (2)
120
0
1
2
3
4
5
6
7
8
9
Average Forward Current - I
F(AV)
(A)
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
0
1
2
3
4
5
6
7
8
Average Forward Current - I
F(AV)
(A)
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: 94231
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4
50UQ03GPbF
Bulletin PD-21139 05/06
Outline Table
Base
Cathode
4, 2
Modified JEDEC outline TO-251
Dimensions in millimeters and (inches)
1
3
Anode
Anode
Marking Information
PART NUMBER
G = Schottky Generation
EXAMPLE:
THIS IS A 50UQ03G WITH
LOT CODE 5K3A
ASSEMBLED ON WW 12, 2000
IN ASSEMBLY LINE "A"
INTERNATIONAL
RECTIFIER
LOGO
ASSEMBLY
LOT CODE
50UQ03G
P12A
5K
3A
DATE CODE
P = LEAD-FREE
YEAR 1 = 2001
WEEK 02
LINE A
Document Number: 94231
www.vishay.com
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