Bulletin PD-20410 07/04
MBRS320TRPbF
3 Amp
SCHOTTKY RECTIFIER
IF(AV) = 3.0Amp
VR = 20V
Major Ratings and Characteristics
Description/ Features
Characteristics
Value
Units
IF(AV) Rectangular
waveform
3.0
A
VRRM
20
V
IFSM @ t p= 5 µs sine
820
A
VF
@ 3.0 Apk, TJ = 125°C
0.36
V
TJ
range
- 65 to 150
°C
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, free-wheeling
diodes, battery charging, and reverse battery protection.
Small foot print, surface mountable
Very low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Lead-Free ("PbF" suffix)
Case Styles
MBRS320TRPbF
SMC
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MBRS320TRPbF
Bulletin PD-20410 07/04
Voltage Ratings
Part number
VR
MBRS320PbF
Max. DC Reverse Voltage (V)
20
VRWM Max. Working Peak Reverse Voltage (V)
Absolute Maximum Ratings
Parameters
Value
Units Conditions
IF(AV) Max. Average Forward Current
3.0
IFSM
Max. Peak One Cycle Non-Repetitive
820
5µs Sine or 3µs Rect. pulse
Surge Current
80
10ms Sine or 6ms Rect. pulse
EAS
Non Repetitive Avalanche Energy
IAR
Repetitive Avalanche Current
A
4
mJ
1.0
A
50% duty cycle @ TL = 136°C, rectangular wave form
Following any rated
load condition and
with rated VRRM applied
TJ = 25 °C, IAS = 1.0A, L = 8mH
Current decaying linearly to zero in 1 µsec
Frequency limited by TJ max. Va = 1.5 x Vr typical
Electrical Specifications
Parameters
VFM
IRM
Typ.
Max. Forward Voltage Drop
(1)
Max. Reverse Leakage Current (1)
Max.
Units
Conditions
0.41
0.45
V
@ 3A
0.45
0.53
V
@ 6A
0.29
0.36
V
@ 3A
0.35
0.46
V
@ 6A
0.04
0.5
mA
8.0
20
mA
TJ = 100 °C
23
35
mA
TJ = 125 °C
VR = 5VDC (test signal range 100kHz to
CT
Typical Junction Capacitance
360
-
pF
LS
Typical Series Inductance
3.0
-
nH
-
10000
TJ = 25 °C
TJ = 125 °C
T J = 25 °C
VR = rated VR
1Mhz), @ 25°C
dv/dt Max. Voltage Rate of Change
Measured lead to lead 5mm from package body
V/ µs (Rated VR)
(1) Pulse Width < 300µs, Duty Cycle < 2%
Thermal-Mechanical Specifications
Parameters
Value
Units
TJ
Max. Junction Temperature Range (*)
- 65 to 150
°C
Tstg
Max. Storage Temperature Range
- 65 to 150
°C
Conditions
RthJL Max. Thermal Resistance Junction
to Lead
(**)
12
°C/W DC operation
RthJA Max. Thermal Resistance Junction
46
°C/W
to Ambient
Wt
Approximate Weight
SMC
Device Marking
IR32
(*) dPtot
dTj
2
0.24(0.008) gr (oz)
Case Style
<
1
Rth( j-a)
Similar DO-214AB
thermal runaway condition for a diode on its own heatsink
(**) Mounted 1 inch square PCB
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MBRS320TRPbF
Bulletin PD-20410 07/04
100
100
Reverse Current - I R (mA)
10
125˚C
10
100˚C
1
75˚C
0.1
50˚C
25˚C
0.01
0.001
0
5
10
15
Reverse Voltage - VR (V)
20
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
1000
Junction Capacitance - C T (p F)
Instantaneous Forward Current - I
F
(A)
Tj = 150˚C
Tj = 150˚C
1
Tj = 125˚C
Tj = 25˚C
Tj = 25˚C
100
0.1
0
0.2
0.4
0.6
0
0.8
Forward Voltage Drop - VFM (V)
5
10
15
20
Reverse Voltage - VR (V)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Fig. 1 - Max. Forward Voltage Drop
Characteristics (Per Leg)
Thermal Impedance Z
thJC
(°C/W)
100
10
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
PDM
t1
t2
1
Notes:
Single Pulse
(Thermal Resistance)
1. Duty factor D = t1/ t2
2. Peak Tj = Pdm x ZthJC + Tc
0.1
0.00001
0.0001
0.001
0.01
0.1
1
10
100
t1 , Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance Z
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thJC
Characteristics (Per Leg)
3
MBRS320TRPbF
Bulletin PD-20410 07/04
1.6
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
150
145
140
Allowable Power Loss (Watts)
Allowable Lead Temperature (°C)
155
DC
135
130 Square wave
125 see note (2)
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
1.4
1.2
1
RMS Limit
0.8
0.6
DC
0.4
0.2
120
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
0
Average Forward Current - I F(AV) (A)
FSM (A)
Fig. 5 - Maximum Average Forward Current
Vs. Allowable Lead Temperature
Non-Repetitive Surge Current - I
1
2
3
4
5
Average Forward Current - I F(AV) (A)
Fig. 6 - Maximum Average Forward Dissipation
Vs. Average Forward Current
1000
Tj = 25˚C
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 Peak Surge Forward Current Vs. Pulse Duration
(2) Formula used: TC = TJ - (Pd + PdREV) x RthJC ;
Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 6);
PdREV = Inverse Power Loss = VR1 x IR (1 - D)
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MBRS320TRPbF
Bulletin PD-20410 07/04
Outline Table
Device Marking: IR32
2.75 (.108)
3.15 (.124)
5.59 (.220)
6.22 (.245)
6.60 (.260)
CATHODE
1
7.11 (.280)
ANODE
2
.152 (.006)
.305 (.012)
1 POLARITY
2.00 (.079)
2.62 (.103)
2 PART NUMBER
.102 (.004)
0.76 (.030)
1.52 (.060)
7.75 (.305)
8.13 (.320)
.203 (.008)
Outline SMC
Dimensions in millimeters and (inches)
For recommended footprint and soldering techniques refer to application note #AN-994
Marking & Identification
Each device has 2 rows for identification. The first row designates the device as manufactured by International
Rectifier, indicated by the letters "IR", and the Part Number (indicates the current, the voltage rating and
Schottky Generation). The second row indicates the year, the week of manufacturing and the Site ID.
IR32
IR32
VOLTAGE
CURRENT
IR LOGO
PYWWX
SITE ID
WEEK
2nd digit of the YEAR
"Y" = 1st digit of the YEAR "standard product"
"P" = "Lead-Free"
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MBRS320TRPbF
Bulletin PD-20410 07/04
Tape & Reel Information
Dimensions in millimetres and (inches)
Ordering Information Table
Device Code
MBR
S
3
20
TR
PbF
1
2
3
4
5
6
1
-
Schottky MBR Series
2
-
S = SMC
3
-
Current Rating (3 = 3 A)
4
-
Voltage Rating (20 = 20V)
5
-
TR
6
-
y none = Standard Production
= Tape & Reel (3000 pieces)
y PbF = Lead-Free
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial Level and Lead-Free.
Qualification Standards can be found on IR's Web site.
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7309
Visit us at www.irf.com for sales contact information. 07/04
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