3
2
L
D
H
J
K
M
G
F
C
B
A
1
23
α
SCHOTTKY RECTIFIER 0.2 Amp
BAT54AW
Preliminary Data Sheet PD-20780 12/01
SOT323
1
Major Ratings and Characteristics
I
F(DC) Per Leg 0.2 A
VRRM 30 V
IFSM @ tp= 10 ms sine 1.0 A
VF@
30mA DC, TJ= 25°C 0.5 V
PdPower Dissipation 200 m W
@ TA = 25°C
T
Jrange - 65 to 150 °C
Characteristics Value Units
This Schottky barrier double diode is designed for high speed
switching application, voltage clamping and circuit protection.
Miniature surface mount packages with reduced foot print are
excellent for portable application where space is limited
Small foot print, surface mountable
Very low forward voltage drop
Extremely fast switching speed for high frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Description/ Features
Case Styles
Outline SOT323
2
1
3
Device Marking: IR4A
DIM Millimeters Inches
Min Max Min Max
A 0.25 0.40 0.010 0.016
B 1.15 1.35 0.045 0.053
C 2.00 2.20 0.079 0.087
D - 0.65 - 0.026
F 0.30 0.40 0.012 0.016
G 1.20 1.40 0.047 0.055
H 1.80 2.20 0.071 0.087
J 0.00 0.10 0.000 0.004
K 0.90 1.00 0.035 0.039
L 0.10 0.30 0.004 0.012
M 0.109 0.25 0.004 0.010
α 8° 8°C
SOLDERING PAD
1.9"
0.025 mm
0.85"
0.075 mm
0.025 mm
0.65"
0.035 mm
0.9"
0.028 mm
0.7"
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(A)
(K) (K)
BAT54AW
Preliminary Data Sheet PD-20780 12/01
2www.irf.com
Part number Value
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V) 30
Voltage Ratings
IFForward Current 0.2 A DC, per Leg
IFSM Max. Peak One Cycle Non-Repetitive 8.4 A 5µs Sine or 3µs Rect. pulse
Surge Current, @ TJ = 25°C 1.0 A 10ms Sine or 6ms Rect. pulse
Parameters Value Units Conditions
Absolute Maximum Ratings
Following any rated
load condition and
with rated VRRM
applied
TJMax. Junction Temperature Range (*) - 65 to 150 °C
Tstg Max. Storage Temperature Range - 65 to 150 °C
Rth(j-a) Max. Thermal Resistance Junction 625 °C/W Mounted on PC board FR4 with minimum pad size
to Ambient
W t Approximate Weight 0.006 gr
Case Style SOT323
Device Marking IR4A
Thermal-Mechanical Specifications
Parameters Value Units Conditions
VFM Max. Forward Voltage Drop (1) 0.24 V @ 0.1mA
0.32 V @ 1mA
VFM Max. Forward Voltage Drop (1) 0.40 V @ 10mA
0.50 V @ 30mA TJ = 25°C
0.65 V @ 100mA
IRM Max. Reverse Leakage (1) 2 µA VR = 25V
Current 3 µA VR = 30V
CTMax. Junction Capacitance 10 pF VR = 1VDC (test signal range 100KHz to 1Mhz), TJ = 25°C
dv/dt Max. Voltage Rate of Change 10000 V/µs
(Rated VR)
Electrical Specifications
Parameters Value Units Conditions
(1) Pulse Width < 300µs, Duty Cycle < 2%
< thermal runaway condition for a diode on its own heatsink
(*)dPtot 1
dTj Rth( j-a)
BAT54AW
Preliminary Data Sheet PD-20780 12/01
3
www.irf.com
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
Forward Voltage Drop - VFM (V)
Instantaneous Forward Current - I
F (A)
Reverse Voltage - VR (V)
Reverse Current - I R (mA)
Reverse Voltage - VR (V)
Junction Capacitance - C T (p F)
0
0
0.01
0.1
1
0 0.2 0.4 0.6 0.8 1 1.2 1.4
Tj = 150˚C
Tj = 125˚C
Tj = 25˚C
1
10
0 5 10 15 20 25 30
T = 25˚C
J
0.00001
0.0001
0.001
0.01
0.1
1
0 5 10 15 20 25 30
125˚C
100˚C
75˚C
50˚C
25˚C
Tj = 150˚C
Fig. 4 - Forward Power Loss Characteristics
Average Forward Current - IF(AV) (A)
Average Power Loss (Watts)
Fig. 5 - Max. Non-Repetitive Surge Current
Square Wave Pulse Duration - tp (microsec)
Non-Repetitive Surge Current - I FSM (A)
0
0.1
0.2
0.3
0.4
0 0.1 0.2 0.3
DC
RMS Limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
0.1
1
10
10 100 1000 10000
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
BAT54AW
Preliminary Data Sheet PD-20780 12/01
4www.irf.com
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. 12/01
Data and specifications subject to change without notice.
This product has been designed for Industrial Level.
Qualification Standards can be found on IR's Web site.
Tape & Reel Information
Dimensions in millimeters
Ordering Information Table
Device Package Marking Configuration Base qty Delivery mode
BAT54AW SOT-323 IR4A Dual C. Anode 3000 Tape & Reel
