Document Number: 94320 For technical questions, contact: diodes-tech@vishay.com www.vishay.com
Revision: 15-Aug-08 1
Schottky Rectifier, 3.0 A
MBRS320TRPbF
Vishay High Power Products
FEATURES
• Small foot print, surface mountable
• Very low forward voltage drop
• High frequency operation
• Guard ring for enhanced ruggedness and long term
reliability
• Lead (Pb)-free (“PbF” suffix)
• Designed and qualified for industrial level
DESCRIPTION
The MBRS320TRPbF surface mount Schottky rectifier has
been designed for applications requiring low forward drop
and small foot prints on PC boards. Typical applications are
in disk drives, switching power supplies, converters,
freewheeling diodes, battery charging, and reverse battery
protection.
PRODUCT SUMMARY
IF(AV) 3.0 A
VR20 V
IRM 35 mA at 125 °C
Cathode Anode
SMC
RoHS
COMPLIANT
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL CHARACTERISTICS VALUES UNITS
IF(AV) Rectangular waveform 3.0 A
VRRM 20 V
IFSM tp = 5 µs sine 820 A
VF3.0 Apk, TJ = 125 °C 0.36 V
TJRange - 65 to 150 °C
VOLTAGE RATINGS
PARAMETER SYMBOL MBRS320TRPbF UNITS
Maximum DC reverse voltage VR20 V
Maximum working peak reverse voltage VRWM
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum average forward current IF(AV) 50 % duty cycle at TL = 136 °C, rectangular waveform 3.0
A
Maximum peak one cycle
non-repetitive surge current IFSM
5 µs sine or 3 µs rect. pulse Following any rated
load condition and with
rated VRRM applied
820
10 ms sine or 6 ms rect. pulse 80
Non-repetitive avalanche energy EAS TJ = 25 °C, IAS = 1.0 A, L = 8 mH 4 mJ
Repetitive avalanche current IAR
Current decaying linearly to zero in 1 µs
Frequency limited by TJ maximum VA = 1.5 x VR typical 1.0 A
www.vishay.com For technical questions, contact: diodes-tech@vishay.com Document Number: 94320
2Revision: 15-Aug-08
MBRS320TRPbF
Vishay High Power Products Schottky Rectifier, 3.0 A
Note
(1) Pulse width < 300 µs, duty cycle < 2 %
Notes
(1) thermal runaway condition for a diode on its own heatsink
(2) Mounted 1" square PCB
ELECTRICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS TYP. MAX. UNITS
Maximum forward voltage drop VFM (1)
3 A TJ = 25 °C 0.41 0.45
V
6 A 0.45 0.53
3 A TJ = 125 °C 0.29 0.36
6 A 0.35 0.46
Maximum reverse leakage current IRM (1)
TJ = 25 °C
VR = Rated VR
0.04 0.5
mATJ = 100 °C 8.0 20
TJ = 125 °C 23 35
Typical junction capacitance CTVR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 360 - pF
Typical series inductance LSMeasured lead to lead 5 mm from package body 3.0 - nH
Maximum voltage rate of change dV/dt Rated VR- 10 000 V/µs
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum junction and storage
temperature range TJ (1), TStg - 65 to 150 °C
Maximum thermal resistance,
junction to lead RthJL (2) DC operation 12
°C/W
Maximum thermal resistance,
junction to ambient RthJA 46
Approximate weight 0.24 g
0.008 oz.
Marking device Case style SMC (similar to DO-214AB) V32
dPtot
dTJ
------------- 1
RthJA
--------------<
Document Number: 94320 For technical questions, contact: diodes-tech@vishay.com www.vishay.com
Revision: 15-Aug-08 3
MBRS320TRPbF
Schottky Rectifier, 3.0 A Vishay High Power Products
Fig. 1 - Maximum Forward Voltage Drop Characteristics
(Per Leg)
Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage (Per Leg)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage (Per Leg)
Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics (Per Leg)
0.1
10
1.0
100
IF - Instantaneous
Forward Current (A)
VFM - Forward Voltage Drop (V)
0.2 0.4 0.6 0.80
TJ = 150 °C
TJ = 125 °C
TJ = 25 °C
0.001
1
10
100
0.1
0.01
IR - Reverse Current (mA)
VR - Reverse Voltage (V)
1051520
0
TJ = 150 °C
TJ = 125 °C
TJ = 100 °C
TJ = 75 °C
TJ = 50 °C
TJ = 25 °C
100
1000
C
T
- Junction Capacitance (pF)
V
R
- Reverse Voltage (V)
1051520
0
TJ = 25 °C
0.1
1
10
100
0.00001 0.0001 0.001 0.01 0.1 1
t1 - Rectangular Pulse Duration (s)
ZthJC - Thermal Impedance (°C/W)
10 100
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
Single pulse
(thermal resistance)
PDM
t1
t2
Notes:
1. Duty factor D = t1/t2
2. Peak TJ = PDM x ZthJC + TC
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4Revision: 15-Aug-08
MBRS320TRPbF
Vishay High Power Products Schottky Rectifier, 3.0 A
Fig. 5 - Maximum Average Forward Current vs.
Allowable Lead Temperature
Fig. 6 - Maximum Average Forward Dissipation vs.
Average Forward Current
Fig. 7 - Maximum Peak Surge Forward Current vs.
Pulse Duration
Note
(1) Formula used: TC = TJ - (Pd + PdREV) x RthJC;
Pd = Forward power loss = IF(AV) x VFM at (IF(AV)/D) (see fig. 6);
PdREV = Inverse power loss = VR1 x IR (1 - D)
120
125
130
135
140
145
155
150
Allowable
C
ase Temperature (°
C
)
I
F(AV)
- Average Forward Current (A)
1.0
0.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5
0
DC
See note (1)
Square wave
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
0
0.2
0.6
1.2
1.4
1.0
0.8
0.4
1.6
Average Power Loss (W)
IF(AV) - Average Forward Current (A)
2
1345
0
DC
RMS limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
10
100
1000
I
FSM
- Non-Repetitive Surge Current (A)
t
p
- Square Wave Pulse Duration (µs)
100 1000 10 000
10
TJ = 25 °C
At any rated load condition
and with rated VRRM applied
following surge
Document Number: 94320 For technical questions, contact: diodes-tech@vishay.com www.vishay.com
Revision: 15-Aug-08 5
MBRS320TRPbF
Schottky Rectifier, 3.0 A Vishay High Power Products
ORDERING INFORMATION TABLE
1- Schottky MBR series
2- S = SMC
3- Current rating (3 = 3 A)
4- Voltage rating (20 = 20 V)
5
6- None = Standard production
PbF = Lead (Pb)-free
- TR = Tape and reel (3000 pieces)
Device code
51324
6
MBR S 3 20 TR PbF
LINKS TO RELATED DOCUMENTS
Dimensions http://www.vishay.com/doc?95023
Part marking information http://www.vishay.com/doc?95029
Packaging information http://www.vishay.com/doc?95034
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
Disclaimer
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Vishay
All product specifications and data are subject to change without notice.
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(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
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