Bulletin PD-20776 07/04
MBRA120TRPbF
SCHOTTKY RECTIFIER
1.0 Amp
IF(AV) = 1.0Amp
VR = 40V
Description/ Features
Major Ratings and Characteristics
Characteristics
The MBRA120TRPbF surface mount Schottky rectifier has
been designed for applications requiring low forward drop and
very 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.
Value
Units
1.0
A
VRRM
20
V
Small foot print, surface mountable
Low forward voltage drop
IFSM @ tp = 5 µs sine
310
A
High frequency operation
VF
@ 1.0Apk, TJ=125°C
0.34
V
Guard ring for enhanced ruggedness and long term
reliability
TJ
range
- 65 to 150
°C
IFAV
Rect. Waveform
Lead-Free ("PbF" suffix)
Case Styles
MBRA120TRPbF
SMA
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1
MBRA120TRPbF
Bulletin PD-20776 07/04
Voltage Ratings
Part number
VR
MBRA120TR
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
1.0
A
50% duty cycle @ TL = 136°C, rectangular wave form
IFSM
Max. Peak One Cycle Non-Repetitive
310
5µs Sine or 3µs Rect. pulse
Surge Current
40
10ms Sine or 6ms Rect. pulse
EAS
Non Repetitive Avalanche Energy
2.0
mJ
IAR
Repetitive Avalanche Current
1.0
A
Following any rated
load condition and
with rated VRRM applied
TJ = 25 °C, IAS = 1A, L = 4mH
Electrical Specifications
Parameters
VFM
IRM
Max. Forward Voltage Drop (1)
Max. Reverse Leakage Current (1)
Typ.
Max.
Units
Conditions
0.42
0.45
V
@ 1A
0.46
0.52
V
@ 2A
0.33
0.37
V
@ 1A
0.39
0.45
V
@ 2A
0.30
0.35
V
@ 1A
0.36
0.43
V
@ 2A
TJ = 25 °C
TJ = 100 °C
TJ = 125 °C
0.015
0.2
mA
T J = 25 °C
2.0
6.0
mA
TJ = 100 °C
VR = rated VR
7.0
20
mA
TJ = 125 °C
CT
Typical Junction Capacitance
110
-
pF
VR = 5VDC (test signal range 100kHz to
LS
Typical Series Inductance
2.0
-
nH
-
10000
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
°C
- 65 to 150
Conditions
RthJL Max. Thermal Resistance Junction
to Lead
(**)
35
°C/W DC operation
RthJA Max. Thermal Resistance Junction
80
°C/W
to Ambient
Wt
Approximate Weight
SMA
Device Marking
IR12A
(*) dPtot
dTj
2
0.07(0.002) gr (oz)
Case Style
<
1
Rth( j-a)
Similar D-64
thermal runaway condition for a diode on its own heatsink
(**) Mounted 1 inch square PCB
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MBRA120TRPbF
Bulletin PD-20776 07/04
100
Tj = 150˚C
Reverse Current - IR (mA)
10
125˚C
100˚C
1
75˚C
50˚C
0.1
25˚C
0.01
0.001
0.0001
0
5
10
15
20
Reverse Voltage - VR (V)
Fig. 2 - Typical Peak Reverse Current
Vs. Reverse Voltage
1
Tj = 150˚C
Tj = 125˚C
1000
Tj = 100˚C
Tj = 25˚C
0.1
0
0.2
0.4
0.6
0.8
1
Forward Voltage Drop - V FM (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
Junction Capacitance - C T (pF)
Instantaneous Forward Current - I F (A)
10
Tj = 25˚C
100
10
0
5
10
15
20
Reverse Voltage - VR (V)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
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MBRA120TRPbF
Bulletin PD-20776 07/04
0.5
150
Allowable Power Loss (Watts)
Allowable Lead Temperature (°C)
155
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
145
140
Square wave
DC
135
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
0.4
0.3
RMS Limit
0.2
DC
0.1
see note (2)
130
0
0.2 0.4 0.6 0.8
1
0
1.2 1.4 1.6
0
Average Forward Current - I F(AV) (A)
FSM (A)
Fig. 4 - Maximum Average Forward Current
Vs. Allowable Lead Temperature
Non-Repetitive Surge Current - I
0.4
0.8
1.2
1.6
Average Forward Current - I F(AV) (A)
Fig. 5 - Maximum Average Forward Dissipation
Vs. Average Forward Current
1000
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
100
Tj = 25˚C
10
10
100
1000
10000
Square Wave Pulse Duration - t p (microsec)
Fig. 6 - 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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MBRA120TRPbF
Bulletin PD-20776 07/04
Outline Table
CATHODE
Device Marking: IR12A
1.40 (.055)
1.60 (.062)
AN OD E
1
2.50 (.098)
2.90 (.114)
2
1 P O LA R I TY
4.00 (.157)
2 PA R T N U M B ER
4.60 (.181)
.152 (.006)
.305 (.012)
1.47 MIN.
(.058 MIN.)
2.00 (.078)
2.44 (.096)
.103 (.004)
.203 (.008)
0.76 (.030)
1.52 (.060)
4.80 (.188)
5.28 (.208)
2.10 MAX.
(.085 MAX. )
1.27 MIN.
(.050 MIN.)
5.53 (.218)
SOLDERING PAD
Outline SMA
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.
IR12A
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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MBRA120TRPbF
Bulletin PD-20776 07/04
Tape & Reel Information
Dimensions in millimetres and (inches)
Ordering Information Table
Device Code
MBR
A
1
20
TR
PbF
1
2
3
4
5
6
1
-
Schottky MBR Series
2
-
A = SMA
3
-
Current Rating (1 = 1 A)
4
-
Voltage Rating (20 = 20V)
5
-
TR
= Tape & Reel (7500 pieces)
y none = Standard Production
6
6
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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