SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER
VOLTAGE RANGE 20 to 40 Volts CURRENT 1.0 Ampere
FEATURES
*
*
*
*
*
SM5817
THRU
SM5819
Ideal for surface mounted applications
Low leakage current
Metallurgically bonded construction
Mounting position: Any
Weight: 0.015 gram
MECHANICAL DATA
DISCONTINUED-
* Epoxy : Device has UL flammability classification 94V-0
D
ed
nu
ti
on
sc
i
.205 ( 5.2 )
.190 ( 4.8 )
SOLDERABLE
ENDS
.024 ( 0.6 )
.016 ( 0.4 )
.106 ( 2.7 )
.095 ( 2.4 )
MELF
"This series is replaced by the FM581X series that meets to the same
fit and function parameters and share the same solder pad layout.
The FM581X series is preferred for error-free vacuum pick-up and
PCB assembly.＂
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
o
C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Dimensions in inches and (millimeters)
MAXIMUM RATINGS
(@ T
A
=25
O
C unless otherwise noted)
RATINGS
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current at
T
A
= 90
O
C
Peak Forward Surge Current 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
Typical Junction Capacitance (Note 1)
Operating Temperature Range
Storage Temperature Range
ELECTRICAL CHARACTERISTICS
(@T
A
=25
O
C unless otherwise noted)
CHARACTERISTICS
Maximum Instantaneous Forward Voltage at 1.0A DC
Maximum Instantaneous Forward Voltage at 3.1A DC
Maximum Average Reverse Current
at Rated DC Blocking Voltage
@T
A
= 25 C
@T
A
= 100
o
C
o
SYMBOL
V
RRM
V
RMS
V
DC
I
O
I
FSM
C
J
T
J
T
STG
SM5817
20
14
20
SM5818
30
21
30
1.0
25
110
150
-55 to + 150
SM5819
40
28
40
UNITS
Volts
Volts
Volts
Amps
Amps
pF
0
0
C
C
SYMBOL
V
F
V
F
I
R
SM5817
.45
.75
SM5818
.55
.875
0.2
10
SM5819
.60
.90
UNITS
Volts
Volts
mAmps
mAmps
2007-5
NOTES : 1. Measured at 1 MHz and applied reverse voltage of 4.0 volts.
2. “Fully ROHS compliant”, “100% Sn plating (Pb-free)”.
RATING AND CHARACTERISTICS CURVES ( SM5817 THRU SM5819 )
INSTANTANEOUS FORWARD CURRENT, (A)
1.00
AVERAGE FORWARD CURRENT, (A)
20
10
0.75
0.50
1.0
SM5817
SM5818
SM5819
0.25
0
Single
Half Wave 60HZ
Resistive or
Inductive Load
0
25
50
75
100
125
O
150
175
0.1
T
J
= 25
O
C
Pulse Width = 300mS
1% Duty Cycle
0.1
0.3
0.5
0.7
0.9
1.1
1.3 1.5
1.7
1.9
2.1
AMBIENT TEMPERATURE, ( C)
INSTANTANEOUS FORWARD VOLTAGE, (V)
INSTANTANEOUS REVERSE CURRENT, (mA)
100
10
FIG.1 TYPICAL FORWARD CURRENT
DERATING CURVE
C
T
, TOTAL CAPACITANCE, (pF)
400
200
100
80
60
40
20
10
FIG.2 TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
T
J
= 25
O
C
T
A
= 125
O
C
1.0
T = 75
O
C
A
0.1
0.01
0.001
T
A
= 25
O
C
0
20
40
60
80
100
120
140
0.1
0.4
1.0
4
10
40
80
PERCENT RATED PEAK REVERSE VOLTAGE, (%)
REVERSE VOLTAGE, (V)
FIG.3 TYPICAL REVERSE CHARACTERISTICS
PEAK FORWARD SURGE CURRENT, (A)
FIG.4 TYPICAL JUNCTION CAPACITANCE
50
40
30
20
10
0
1
8.3mS Single Half Sine-Wave
JEDEC Method
2
4
6
8
10
20
40
80 100
NUMBER OF CYCLES AT 60Hz
FIG.5 MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT
Mounting Pad Layout
.100 (2.54)
F-SLOT WIDTH
OPTIMUM PAD SIZE
.100 (2.54)
.100 (2.54)
.200 (5.08)
.300 (7.62)
Dimensions in inches and (millimeters)
DISCLAIMER NOTICE
Rectron Inc reserves the right to make changes without notice to any product
specification herein, to make corrections, modifications, enhancements or other
changes. Rectron Inc or anyone on its behalf assumes no responsibility or liabi-
lity for any errors or inaccuracies. Data sheet specifications and its information
contained are intended to provide a product description only. "Typical" paramet-
ers which may be included on RECTRON data sheets and/ or specifications ca-
n and do vary in different applications and actual performance may vary over ti-
me. Rectron Inc does not assume any liability arising out of the application or
use of any product or circuit.
Rectron products are not designed, intended or authorized for use in medical,
life-saving implant or other applications intended for life-sustaining or other rela-
ted applications where a failure or malfunction of component or circuitry may di-
rectly or indirectly cause injury or threaten a life without expressed written appr-
oval of Rectron Inc. Customers using or selling Rectron components for use in
such applications do so at their own risk and shall agree to fully indemnify Rect-
ron Inc and its subsidiaries harmless against all claims, damages and expendit-
ures.
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