WEITRON B0520LWS_09

B0520LWS / B0540WS
Surface Mount Schottky Barrier Diode
P b Lead(Pb)-Free
Features:
SCHOTTKY DIODE
500 mAMPERS
20-40 VOLTS
* Low Forward Voltage Drop
* Guard Ring Construction forTransient Protection
* High Conductance
Mechanical Data:
* Case: SOD-323
* Plastic Material –UL Recognition Flammability Classification 94V-O
* Leads: Solderable per MIL-STD-202, Method 208
* Polarity: Cathode Band
* Weight: 0.004 grams(approx.)
SOD-323
SOD-323 Outline Demensions
Unit:mm
Dim
A
B
C
D
E
H
J
K
MILLMETERS
Min
Max
1.60
1.80
1.15
1.35
0.80
1.00
0.25
0.40
0.15 REF
0.00
0.10
0.089
0.177
2.30
2.70
PIN 1.CATHODE
2.ANODE
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Rev.A 23-Jun-09
B0520LWS / B0540WS
Maximum Ratings ( TA=25°C Unless otherwise noted)
Characteristic
Symbol
B0520LWS
B0540WS
Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR
20
40
V
RMS Reverse Voltage
VR(RMS)
14
28
V
IO
500
mA
Peak Forward Surge Current
IFSM
5.5
A
Power Dissipation
Pd
410
mW
RθJA
244
°C/W
TJ
+125
°C
Storage Temperature Range
TSTG
-65 to +125
°C
Voltage Rate of Change
dv/dt
1000
V/µs
Average Rec
Current
Thermal Resistance junction to Ambient
Operating Temperature Range
Electrical Characteristics
(TA=25˚C Unless otherwise noted)
Characteristic
Reverse Breakdown Voltage
IR=250µA
IR=130µA
IR=20µA
Forward Voltage
IF=0.1A
IF=0.5A
IF=1.0A
Symbol
B0520LWS
B0540WS
Unit
V(BR)R
20
-
40
V
VF
0.3
0.385
-
0.510
0.62
V
75
250
-
10
20
Reverse Current
VR=10V
VR=15V
VR=20V
VR=30V
VR=40V
IR
Capacitance between terminals
VR=1.0V, f=1.0MHz
CT
170
pF
Reverse Recovery Time
IF=IR=10mA
Irr=0.1 I I IR , RL =100W
trr
4.0
ns
µA
Device Marking
Item
Marking
B0520LWS
SD
B0540WS
SF
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Eqivalent Circuit diagram
1
2/3
2
Rev.A 23-Jun-09
B0520LWS / B0540WS
Electrical Characteristic curves(TA=25˚C)
10
IF, INSTANTANEOUS FWD CURRENT (A)
IO, AVERAGE RECTIFIED CURRENT (A)
1.0
0.75
0.50
0.25
0
B0540WS
1.0
0.1
B0520LWS
0.01
0
25
50
75
100
125
150
0
0.2
0.4
0.6
0.8
1.0
VF, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
TL, LEAD TEMPERATURE (°C)
Fig. 1 Forward Current Derating Curve
1000
CT, TOTAL CAPACITANCE (pF)
f = 1MHz
100
10
1.0
0
5
10
15
20
VR, REVERSE VOLTAGE (V)
Fig. 3 Typ. Total Capacitance vs Reverse Voltage
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Rev.A 23-Jun-09