B5817W - Weitron

B5817W/B5819W
Surface Mount Schottky Barrier Diodes
SMALL SIGNAL
SCHOTTKY DIODES
1.0 AMPERES
20-40 VOLTS
Features:
*Low Forward Voltage
*Very Small Conduction Losses
*Schottky Barrier Diodes Encapsulated in a SOD-123 Package
1
Description:
These schottky barrier diodes are designed for high speed
switching applications circuit protection, and voltage clamping,
Extremely low forward voltage reduces conduction loss,
Miniature surface mount package is excellent for hand held and
portable applications where space is limited.
2
SOD-123
SOD-123 Outline Dimensions
Unit:mm
SOD-123
Dim
A
B
C
D
E
H
J
K
Min
Max
2.55
2.85
1.40
1.80
0.95
1.35
0.50
0.70
0.30 REF
0.10
0.15
3.55
3.85
PIN 1. CATHODE
2. ANODE
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B5817W/B5819W
Maximum Ratings
( TA=25 C Unless otherwise noted)
Characteristic
Symbol
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR
B5817W
VR(RMS)
IFAV
RMS Reverse Voltage
Average Rectified Output Current
B5819W
Unit
20
40
V
14
28
1.0
V
A
Non-Repetitive Peak Forward Surge Current
8.3ms single half sine-wave superimpose on
rated load (JEDEC Method)
IFSM
25
A
Typical thermal Resistance junction to
Ambient Note (1)
R JA
244
C/W
TJ TSTG
-55 to +125
C
Operating & Storage Temperature Range
E lectr ical C har acter istics
Characteristic
Minimum Reverse Breakdown Voltage (2)
(IR=500 A)
( T A =25 C Unles s otherwis e noted)
Symbol
B5817W
V(BR)R
B5819W
Unit
20
40
V
VF
0.400
0.450
0.450
0.550
V
IR
500
Forward Voltage Note(2)
IF=0.5A Tj=25 C
IF=1.0A Tj=25 C
Reverse Current Note(2)
VR=20V, Tj=25 C
VR=40V, Tj=25 C
A
500
Cj
Junction Capacitance f=1MHZ, VR=10VDC
PF
170
Device Marking
Item
Marking
Eqivalent Circuit diagram
B5817W
BK , SJ
1
2
B5819W
BL , SL
1
2
Note: 1. Valid provited that leads are kept at ambient tememperature.
2. Pulse Test : Pulse width = 300 s, Duty Cycle 2%
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B5817W/B5819W
10
B5819W
1.4
IF, INSTANTNEOUS FWD CURRENT (A)
IO, AVERAGE RECITIFIED CURRENT (A)
1.8
1.2
1.0
0.8
0.6
0.4
0.2
0
0
25
50
75
100
125
150
B5817W
1.0
0.1
0.01
0
0.2
0.4
1.0
TL, LEAD TEMPERATURE ( C)
Fig, 2 Typical Forward Characterictics
Cj , CAPACITANCE (pF)
100
10
1.0
0
5
10
15
20
VR.REVERSE VOLTAGE (V)
Fig, 3 Typ, Junction Capacitance vs. Reverse Voltage
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0.8
FIG, 1 Forward Current Derating Curve
1000
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0.6
VF, INSTANTANEOUS FORWARD VOLTAGE (V)