BAT54T /AT /CT /ST
Document number: DS30259 Rev. 11 - 2 1 of 4
www.diodes.com October 2010
© Diodes Incorporated
BAT54T /AT /CT /ST
SURFACE MOUNT SCHOTTKY BARRIER DIODE
Features
Ultra-Small Surface Mount Package
Low Forward Voltage Drop
Fast Switching
PN Junction Guard Ring for Transient and ESD Protection
Lead Free/RoHS Compliant (Note 1)
"Green" Device (Note 2 and 3)
Qualified to AEC-Q101 Standards for High Reliability
Mechanical Data
Case: SOT-523
Case Material: Molded Plastic. UL Flammability Classification
Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: Finish - Solderable per MIL-STD-202, Method 208
Lead Free Plating (Matte Tin Finish annealed over Alloy 42
leadframe).
Polarity: See Diagrams Below
Weight: 0.002 grams (approximate)
Top View BAT54T BAT54AT BAT54CT BAT54ST
Ordering Information (Note 4)
Part Number Case Packaging
BAT54T-7-F SOT-523 3000/Tape & Reel
BAT54AT-7-F SOT-523 3000/Tape & Reel
BAT54CT-7-F SOT-523 3000/Tape & Reel
BAT54ST-7-F SOT-523 3000/Tape & Reel
Notes: 1. No purposefully added lead.
2. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com.
3. Product manufactured with Date Code UO (week 40, 2007) and newer are built with Green Molding Compound. Product manufactured prio r to Date
Code UO are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
4. For packaging details, go to our website at http://www.diodes.com.
Marking Information
Date Code Key
Year 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Code N P R S T U V W X Y Z A B C
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Code 1 2 3 4 5 6 7 8 9 O N D
xx = Product Type Marking Code
L1 = BAT54T
L2 = BAT54AT
L3 = BAT54CT
L4 = BAT54ST
YM = Date Code Marking
Y = Year (ex: N = 2002)
M = Month (ex: 9 = September)
xx YM
BAT54T /AT /CT /ST
Document number: DS30259 Rev. 11 - 2 2 of 4
www.diodes.com October 2010
© Diodes Incorporated
BAT54T /AT /CT /ST
Maximum Ratings @TA = 25°C unless otherwise specified
Characteristic Symbol Value Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR 30 V
Forward Continuous Current (Note 5) IFM 200 mA
Repetitive Peak Forward Current IFRM 300 mA
Forward Surge Current @ t < 1.0s IFSM 600 mA
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 5) PD 150 mW
Thermal Resistance, Junction to Ambient (Note 5) R
θ
JA 833 °C/W
Operating and Storage Temperature Range TJ, TSTG -65 to +125 °C
Electrical Characteristics @TA = 25°C unless otherwise specified
Characteristic Symbol Min Typ Max Unit Test Condition
Reverse Breakdown Voltage (Note 6) V
(
BR
)
R 30 V IR = 100μA
Forward Voltage
VF
240
320
400
500
1000
mV
IF = 0.1mA
IF = 1mA
IF = 10mA
IF = 30mA
IF = 100mA
Reverse Leakage Current (Note 6) IR 2.0 μA VR = 25V
Total Capacitance CT 10 pF
VR = 1.0V, f = 1.0MHz
Reverse Recovery Time trr 5.0 ns
IF = 10mA through IR = 10mA
to IR = 1.0mA, RL = 100Ω
Notes: 5. Device mounted on FR-4 PC board with recommended pad layout, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
6. Short duration pulse test used to minimize self-heating effect.
0.1
0.01
1
0.001
0.0001 01.00.4 0.6 0.8
0.2
I, I
N
S
T
A
N
T
A
N
E
O
U
S
F
O
R
WA
R
D
C
U
R
R
E
N
T
(A)
F
V , INSTAN TAN EOUS FORWA RD VO LTAGE (V)
Fig. 1 Typi cal Forw ar d Ch ar acter istics
F
0.001
0.01
0.1
10
1
100
0510152025 30
V , INSTANT A NEOUS REVERSE VOLTAGE (V)
Fig. 2 Typical Reverse Characteristics
R
BAT54T /AT /CT /ST
Document number: DS30259 Rev. 11 - 2 3 of 4
www.diodes.com October 2010
© Diodes Incorporated
BAT54T /AT /CT /ST
0
2
4
10
8
6
12
010 15
520 30
25
C
,
T
O
T
AL
C
A
P
A
C
I
T
A
N
C
E (p
F
)
T
V , DC REVERSE VOL TAGE (V)
Fig. 3 Total Capacitance vs. Reverse Voltage
R
0
100
0255075100125
P
,
P
O
WE
R
DISSI
P
A
T
I
O
N (mW)
D
T , AMBIENT T EMPERATURE ( C)
Fig. 4 Power Derating Curve
A
°
200
Package Outline Dimensions
Suggested Pad Layout
SOT-523
Dim Min Max Typ
A 0.15 0.30 0.22
B 0.75 0.85 0.80
C 1.45 1.75 1.60
D 0.50
G 0.90 1.10 1.00
H 1.50 1.70 1.60
J 0.00 0.10 0.05
K 0.60 0.80 0.75
L 0.10 0.30 0.22
M 0.10 0.20 0.12
N 0.45 0.65 0.50
α 0° 8°
All Dimensions in mm
Dimensions Value (in mm)
Z 1.8
X 0.4
Y 0.51
C 1.3
E 0.7
X E
Y
C
Z
A
M
JL
D
BC
H
K
G
N
BAT54T /AT /CT /ST
Document number: DS30259 Rev. 11 - 2 4 of 4
www.diodes.com October 2010
© Diodes Incorporated
BAT54T /AT /CT /ST
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labeling can be reasonably expected to result in significant injury to the user.
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