B5817WS-B5819WS
SCHOTTKY BARRIER DIODE
SOD-323
1.35(0.053)
1.15(0.045)
1.26(.050)
1.24(.048)
FEATURES
For use in low voltage, high frequency inverters
Free wheeling, and polanty protection applications
1.80(0.071)
1.60(0.063)
2.70(0.106)
2.30(0.091)
1.80(0.071)
1.60(0.063)
2.70(0.106)
2.30(0.091)
MECHANICAL DATA
0.4(0.016)
.25(0.010)
.177(.007)
.089(.003)
1.00(.040)
0.80(.031)
0.1(0.004)
MIN
.305(0.012)
.295(0.010)
.72(0.028)
.69(0.027)
.08(.003)
MIN
Case:
Molded plastic body
Terminals:
Plated leads solderable per MIL-STD-750,
Method 2026
Polarity:
Polarity symbols marked on case
Marking:
B5817W:SJ, B5818W:SK, B5819W:SL
Dimensions in millimeters and (inches)
Maximum ratings and electrical characteristics, Single diode @T
A
=25C
PARAMETER
Peak repetitive peak reverse voltage
Working peak
DC Blocking voltage
RMS Reverse voltage
Average rectified output current
Peak forward surge current @=8.3ms
Repetitive peak forward current
Power dissipation
Thermal resistance junction to ambient
Storage temperature
Non-Repetitive peak reverse voltage
Electrical ratings @T
A
=25C
PARAMETER
Reverse breakdown voltage
SYMBOLS
SYMBOLS
B5817WS
20
14
B5818WS
30
21
1
25
625
200
625
-65 to +150
30
B5819WS
40
28
UNITS
V
V
A
A
mA
mW
K/W
V
RRM
V
RWM
V
R
V
R(RMS)
I
O
I
FSM
I
FRM
Pd
R
ΘJA
T
STG
V
RM
C
40
V
20
Min.
20
30
40
Max.
Unit
V
V
V
Test conditions
I
R
=1mA
V
R
=20V
B5817WS
B5818WS
B5819WS
B5817WS
B5818WS
B5819WS
B5817WS
I
F
=1A
I
F
=3A
B5818WS
B5819WS
V
R
=4V,f=1.0MHz
V
(BR)
Reverse voltage leakage current
I
R
1
0.45
0.75
mA
V
R
=30V
V
R
=40V
Forward voltage
V
F
V
V
V
0.55
0.875
0.6
0.9
Diode capacitance
C
D
120
pF
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RATINGS AND CHARACTERISTIC CURVES B5817WS-B5819WS
FIG. 1- FORWARD CURRENT DERATING CURVE
FIG. 2-MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
AVERAGE FORWARD CURRENT
(A)
1.25
PEAK FORWARD SURGE CURRENT
(A)
30
1.0
25
20
0.75
Resistive or inductive
load0.375''(9.5mm)
lead length
0.5
15
10
0.25
5
0
0
20
40
60
80
100
120
140
0
0
10
100
CASE
TEMPERATURE(
C
)
NUMBER OF CYCLES AT 60Hz
INSTANTANEOUS REVERSE CURRENT
(mS)
INSTANTANEOUS FORWARD CURRENT
(A)
FIG. 3- TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
50
FIG. 4- TYPICAL REVERSE CHARACTERISTICS
100
10
T
J
=25
C
10
T
J
=125
C
T
J
=125
C
1.0
T
J
=75
C
0.1
1.0
0.1
Pulse width=300us
1% duty cycle
0.01
T
J
=25
C
0.01
0
0.4
0.8
1.2
1.6
0.001
0
20
40
60
80
100
INSTANTANEOUS FORWARD VOLTAGE(V)
PERCENT OF RATED PEAK PEVERSE VOLTAGE
(%)
TRANSIENT THERMAL IMPEDANCE
(
C
/W)
FIG. 5- TYPICAL JUNCTION CAPACITANCE
400
FIG. 6-TYPICAL TRANSIENT
THERMAL IMPEDANCE
100
JUNCTION CAPACITANCE (pF)
T
J
=25
C
f=1.0MHz
V
sp
=50mV
p-p
10
100
1
10
0
0.1
1
10
100
0
1
10
100
REVERSE VOLTAGE (V)
t--PULSE DURATION
(sec.)
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