Diodes SBR3U20SA User Manual
)
(BR)
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Features
• Ultra Low Forward Voltage Drop
• Patented Super Barrier Rectifier Technology
• Soft, Fast Switching Capability
• 150ºC Operating Junction Temperature
• Lead Free Finish, RoHS Compliant (Note 1)
• Green Molding Compound (No Halogen and Antimony)
(Note 6)
NEW PRODUCT
Maximum Ratings @T
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitance load, derate current by 20%.
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Average Rectified Output Current (See Figure 1)
Non-Repetitive Peak Forward Surge Current 8.3ms
Single Half Sine-Wave Superimposed on Rated Load
= 25°C unless otherwise specified
A
Characteristic Symbol Value Unit
Green
SURFACE MOUNT SUPER BARRIER RECTIFIER
Mechanical Data
• Case: SMA
• Case Material: Molded Plastic, UL Flammability Classification
Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020D
• Terminals: Lead Free Plating (Matte Tin Finish.) Solderable
per MIL-STD-202, Method 208
• Polarity Indicator: Cathode Band
• Marking Information: See Page 3
• Ordering Information: See Page 3
• Weight: 0.064 grams (approximate)
Top View Bottom View
V
RRM
V
RWM
V
RM
V
R(RMS
I
O
I
FSM
SBR3U20SA
3.0A SBR
®
SMA
20 V
14 V
3.0 A
66 A
Thermal Characteristics
Maximum Thermal Resistance
Thermal Resistance Junction to Soldering (Note 2)
Thermal Resistance Junction to Ambient (Note 3)
Thermal Resistance Junction to Ambient (Note 4)
Operating and Storage Temperature Range
Electrical Characteristics @T
Reverse Breakdown Voltage (Note 5)
Forward Voltage Drop
Leakage Current (Note 5)
Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/quality/lead_free.html.
2. Theoretical R
3. FR-4 PCB, 2 oz. Copper, minimum recommended pad layout per http://www.diodes.com/datasheets/ap02001.pdf. T
4. Polymide PCB, 2 oz. Copper, minimum recommended pad layout per http://www.diodes.com/datasheets/ap02001.pdf
5. Short duration pulse test used to minimize self-heating effect.
6. Product manufactured with Data Code 0924 (week 24, 2009) and newer are built with Green Molding Compound.
SBR is a registered trademark of Diodes Incorporated.
SBR3U20SA
Document number: DS31209 Rev. 8 - 2
Characteristic Symbol Value Unit
A
Characteristic Symbol Min Typ Max Unit Test Condition
calculated from the top center of the die straight down to the PCB cathode tab solder junction.
θJS
T
J
= 25°C unless otherwise specified
V
R
20 - - V
-
V
F
-
-
-
I
R
-
-
1 of 4
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R
R
R
, T
JS
θ
JA
θ
JA
θ
STG
44
127
ºC/W
97
-65 to +150 ºC
IR = 0.75mA
I
= 0.5A, TJ = 25ºC
V
µA
F
I
= 1.0A, TJ = 25ºC
F
= 3.0A, TJ = 25ºC
I
F
I
= 3.0A, TJ = 125ºC
F
V
= 20V, TJ = 25ºC
R
= 20V, TJ = 125ºC
V
R
= 25ºC
A
0.26
0.29
0.35
0.28
-
-
0.30
0.33
0.39
0.32
500
100
mA
July 2009
© Diodes Incorporated
P, P
O
R
PATIO
N
NEW PRODUCT
SBR3U20SA
1.2
1.0
(W)
10
1
T = 150°C
A
T = 125°C
A
0.8
0.1
0.6
DISSI
WE
0.4
D
0.2
0
0 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4
I , AVERAGE FORWARD CURRENT (A)
F(AV)
Fig. 1 Forward Power Dissipation
100,000
T = 150°C
0.01
0.001
F
I , INSTANT ANEOUS FORWARD CURRENT (A)
0.0001
0 100 200 300 400 500 600
V , INSTANTANEOUS FORWARD VOLTAGE (mV)
F
Fig. 2 Typical Forward Characteristics
10,000
A
T = 85°C
A
T = 25°C
A
T = -55°C
A
10,000
R
I , INSTANT ANEOUS REVERSE CURRENT (uA)
T = 125°C
A
T = 85°C
1,000
100
A
T = 25°C
A
10
1
T = -55°C
0.1
0 2 4 6 8101214161820
V , INSTANT ANEOUS REVERSE VOLTAGE (V)
R
Fig. 3 Typical Reverse Characteristics
A
3.5
3
2.5
2
1.5
1,000
T
C , TOTAL CAPACITANCE (pF)
100
0.1 1 10 100
V , DC REVERSE VOLT AGE (V)
R
Fig. 4 T otal Capacitance vs. Reverse Voltage
150
°
125
100
75
1
50
0.5
F(AV)
I , AVERAGE FORWARD CURRENT (A)
0
0306090120150
T , AMBIENT TEMPERATURE (°C)
A
Fig. 5 Forward Current Derating Curve
SBR is a registered trademark of Diodes Incorporated.
SBR3U20SA
Document number: DS31209 Rev. 8 - 2
2 of 4
www.diodes.com
25
A
T , DERATED AMBIENT TEMPERATURE ( C)
0
0246 8101214161820
V , DC REVERSE VOLTAGE (V)
R
Fig. 6 Operating Temperature Derating
July 2009
© Diodes Incorporated
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