1N5818
Vishay High Power Products
Schottky Rectifier, 1.0 A
FEATURES
• Low profile, axial leaded outline
• High frequency operation
• Very low forward voltage drop
Cathode
Anode
• High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
• Guard ring for enhanced ruggedness and long term
reliability
• Lead (Pb)-free plating
• Designed and qualified for industrial level
DO-204AL
PRODUCT SUMMARY
I
F(AV)
V
R
I
RM
1.0 A
30 V
12 mA at 125 °C
DESCRIPTION
The 1N5818 axial leaded Schottky rectifier has been
optimized for very low forward voltage drop, with moderate
leakage. Typical applications are in switching power
supplies, converters, freewheeling diodes, and reverse
battery protection.
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
I
F(AV)
V
RRM
I
FSM
V
F
T
J
t
p
= 5 µs sine
1 Apk, T
J
= 25 °C
Range
CHARACTERISTICS
Rectangular waveform
VALUES
1.0
30
225
0.55
- 40 to 150
UNITS
A
V
A
V
°C
VOLTAGE RATINGS
PARAMETER
Maximum DC reverse voltage
Maximum working peak reverse voltage
SYMBOL
V
R
V
RWM
1N5818
30
UNITS
V
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Maximum average forward current
See fig. 4
Maximum peak one cycle
non-repetitive surge current
See fig. 6
SYMBOL
I
F(AV)
TEST CONDITIONS
50 % duty cycle at T
L
= 90 °C, rectangular waveform
5 µs sine or 3 µs rect. pulse
I
FSM
10 ms sine or 6 ms rect. pulse
Following any rated load
condition and with rated
V
RRM
applied
VALUES
1.0
225
35
A
UNITS
Document Number: 93256
Revision: 06-Nov-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
1
1N5818
Vishay High Power Products
Schottky Rectifier, 1.0 A
ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
1A
2A
Maximum forward voltage drop
See fig. 1
V
FM (1)
3A
1A
2A
3A
T
J
= 25 °C
Maximum reverse leakage current
See fig. 2
Maximum junction capacitance
Typical series inductance
Maximum voltage rate of change
Note
(1)
Pulse width < 300 µs, duty cycle < 2 %
I
RM (1)
C
T
L
S
dV/dt
T
J
= 100 °C
T
J
= 125 °C
V
R
= 5 V
DC
(test signal range 100 kHz to 1 MHz) 25 °C
Measured lead to lead 5 mm from package body
Rated V
R
V
R
= Rated V
R
T
J
= 125 °C
T
J
= 25 °C
TEST CONDITIONS
VALUES
0.55
0.71
0.875
0.5
0.61
0.77
1.0
6.0
12
60
8.0
10 000
pF
nH
V/µs
mA
V
UNITS
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER
Maximum junction and storage
temperature range
Maximum thermal resistance,
junction to lead
Approximate weight
Marking device
Case style DO-204AL (DO-41)
SYMBOL
T
J
, T
Stg
R
thJL (1)
DC operation
See fig. 4
TEST CONDITIONS
VALUES
- 40 to 150
80
0.33
0.012
1N5818
UNITS
°C
°C/W
g
oz.
Note
(1)
Mounted 1" square PCB, thermal probe connected to lead 2 mm from package
www.vishay.com
2
For technical questions, contact: diodes-tech@vishay.com
Document Number: 93256
Revision: 06-Nov-08
1N5818
Schottky Rectifier, 1.0 A
Vishay High Power Products
10
Junction Capacitance - C
T
(pF)
100
T = 25˚C
J
Instantaneous Forward Current - I
F
(A)
10
0
10
20
30
40
50
Reverse Voltage - V
R
(V)
1
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage
160
140
120
100
80
Square wave (D = 0.50)
Rated Vr applied
Allowable Lead Temperature (°C)
DC
Tj = 150˚C
Tj = 125˚C
Tj = 25˚C
60
see note (1)
40
0.1
0
0.2
0.4
0.6
0.8
1
1.2
Forward Voltage Drop - V
FM
(V)
0
0.2 0.4 0.6 0.8
1
1.2 1.4 1.6
Average Forward Current - I
F(AV)
(A)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
Fig. 4 - Typical Allowable Lead Temperature vs.
Average Forward Current
0.8
100
Reverse Current - I
R
(mA)
10
1
T J = 150˚C
Average Power Loss (Watts)
0.6
RMS Limit
125˚C
0.1
0.01
25˚C
0.4
0.2
0.001
0.0001
0
10
20
30
40
Reverse Voltage - V
R
(V)
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
DC
DC
0
0
0.5
1
1.5
Average Forward Current - I
F(AV)
(A)
Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage
Fig. 5 - Forward Power Loss Characteristics
(1)
Note
Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward power loss = I
F(AV)
x V
FM
at (I
F(AV)
/D) (see fig. 6); Pd
REV
= Inverse power loss = V
R1
x I
R
(1 - D); I
R
at V
R1
= 80 % rated V
R
Document Number: 93256
Revision: 06-Nov-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
3
1N5818
Vishay High Power Products
Schottky Rectifier, 1.0 A
1000
At Any Rated Load Condition
And With Rated VRRM Applied
Following Surge
Non-Repetitive Surge Current - I
(A)
FSM
100
10
10
100
1000
10000
Square Wave Pulse Duration - t
p
(microsec)
Fig. 6 - Typical Non-Repetitive Surge Current
ORDERING INFORMATION TABLE
Device code
1N5818
1
1
2
-
-
TR
2
Part number: 1N5818 = 1 A, 30 V
TR = Tape and reel package (5000 pcs)
None = Box package (1000 pcs)
LINKS TO RELATED DOCUMENTS
Dimensions
Part marking information
Packaging information
http://www.vishay.com/doc?95241
http://www.vishay.com/doc?95304
http://www.vishay.com/doc?95308
www.vishay.com
4
For technical questions, contact: diodes-tech@vishay.com
Document Number: 93256
Revision: 06-Nov-08
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
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