LM5817 THRU LM5819
SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER
Features
• Metal silicon junction, majority carrier conduction
• Low power loss, high efficiency
• Guard ring for overvoltage protection
• High current capability, low forward voltage drop
• High surge capability
• For use in low voltage, high frequency inverters,
free wheeling, and polarity protection applications
Solderable Ends
D2
D1=
1.7
1.5
Mechanical Data
• Case: MiniMELF (DO-213AA), molded plastic body
• Terminals: Solder plated, solderable per MIL-STD-750,
method 2026
• Polarity: Color band denotes cathode end
• Mounting Position: Any
Absolute Maximum Ratings and Characteristics
Ratings at 25
O
C ambient temperature unless otherwise specified, single phase, half wave, resistive or inductive load. For
capacitive load, derate by 20%
Parameter
Maximum Repetitive Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Symbols
V
RRM
V
RMS
V
DC
I
F(AV)
I
FSM
V
F
I
R
LM5817
20
14
LM5818
30
21
1
LM5819
40
28
Maximum Average Forward Rectified Current
Peak Forward Surge Current 8.3 ms Single Half Sine Wave
Superimposed on Rated Load(JEDEC methode)
Maximum Instantaneous Forward Voltage
Maximum Instantaneous Reverse Current at
1)
Rated DC Blocking Voltage
Typical Junction Capacitance
2)
Typical Thermal Resistance, Junction to Ambient
4)
Typical Thermal Resistance, Junction to Terminal
Operating Junction Temperature Range
Storage Temperature Range
1)
2)
3)
4)
S
®
H
C
E
T
M
E
0.6
0.25
3.7
3.3
D2 = D1
+0
-0.203
Dimensions in millimeters
MiniMELF (DO-213AA)
Units
V
V
V
20
30
40
A
25
A
at I
F
= 1 A
at I
F
= 3 A
0.45
0.75
0.55
0.875
0.5
10
75
30
0.6
0.9
V
T
A
= 25
O
C
T
A
= 100
O
C
mA
pF
C
J
3)
110
O
R
θJA
R
θJL
T
j
T
stg
C/W
O
O
- 55 to + 125
- 55 to + 150
C
C
Pulse test: 300 µs pulse width, 1% duty cycle
Mearsured at 1 MHz and reverse voltage of 4 V
Thermal resistance junction to ambient 0.24" X 0.24"(6 X 6 mm) copper pads to each terminals
Thermal resistance junction to terminal 0.24" X 0.24"(6 X 6 mm) copper pads to each terminals
SEMTECH ELECTRONICS LTD.
Subsidiary of Sino-Tech International (BVI) Limited
Dated : 23/12/2008 J
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