Document
Surface Mount Schottky Barrier Diode
P b Lead(Pb)-Free
Features:
* Low Forward Voltage Drop * Guard Ring Construction for Transient Protection * High Conductance
B0520WS
SCHOTTKY DIODE 500m AMPERES 20 VOLTS
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
MILLMETERS
Dim
A B C D E H J K
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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02-Nov-06
B0520WS
Maximum Ratings (TA=25°C Unless otherwise noted)
Characteristic
Symbol
Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage
VRRM VRWM
VR
RMS Reverse Voltage
VR(RMS)
Average Rectified Output Current
IO
Peak Forward Surge Current
IFSM
Power Dissipation
Pd
Thermal Resistance junction to Ambient Operating Temperature Range Storage Temperature Range
RθJA TJ
TSTG
Value
20
14 500 2.0 250 426 +125 -55 to +125
Unit
V
V mA A mW °C/W °C °C
Electrical Characteristics (TA=25˚C Unless otherwise noted)
Characteristic
Symbol
Reverse Breakdown Voltage IR=250µA
V(BR)R
Forward Voltage IF=0.1A IF=0.5A
Reverse Current VR=10V VR=20V
VF IR
Capacitance between terminals VR=0V, f=1.0MHz
CT
Value
20
0.31 0.43
100 250
170
Unit V V
µA pF
Device Marking
Item B0520WS
Marking SD
Eqivalent Circuit diagram 12
WEITRON
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02-Nov-06
B0520WS
Electrical Characteristic curves(TA=25˚C)
1.0
10
IF, INSTANTANEOUS FORWARD CURRENT (A)
IF(AV), AVERAGE F RWARD CURRENT (A)
0.75
0.50
0.25
0 0 25 50 75 100 125 150 TT, TERMINAL TEMPERATURE (°C) Fig. 1 Forward Current Derating Curve
1
TA = 125ºC
0.1
TA = 100ºC TA = 75ºC
0.01
TA = 25ºC TA = 0ºC
0.001 0
TA = -65ºC
0.2 0.4 0.6 0.8 1.0
VF, INSTANTANEOUS FORWARD VOLTAGE (V) Fig. 2 Typical Forward Characteristics
10,000 1000 100 10
TA = 125ºC TA = 100ºC
TA = 75ºC TA = 25ºC
1 0.1 0.01
TA = 0ºC TA = -65ºC
0.001 0
10
VR, REVERSE VOLTAGE (V) Fig. 3 Typical Reverse Characteristics
20
CT, TOTAL CAPACITANCE (pF)
70
f = 1MHz
60
50
40
30
20
10
0 0
5 10 15 20
VR, REVERSE VOLTAGE (V) Fig. 4 Typ. Total Capacitance vs Reverse Voltage
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