WSD490_11 [WEITRON]
Surface Mount Schottky Barrier Diode; 表面贴装肖特基二极管
| 型号： | WSD490_11 |
| 厂家： | 
WEITRON TECHNOLOGY |
| 描述： | Surface Mount Schottky Barrier Diode |
| 文件： | 总3页 (文件大小：366K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
WSD490/WSD491
WEITRON
Surface Mount Schottky Barrier Diode
P b
Lead(Pb)-Free
SCHOTTKY BARRIER
RECTIFIERS
Features:
1.0AMPERES
25-45VOLTS
* Low current rectification and high speed switching.
* Small surface mount type.
* Up to 500mA current capability.
* Low forward voltage drop .
* Silicon epitaxial planar chip, metal silicon junction.
3
* Lead-free parts meet environmental standards of MIL-STD-19500 /228
1
2
Mechanical Data:
* Epoxy:UL94-V0 rated flame retardant
*Case : Moldedplastic,SOT-23
* Terminals : Solder plated, solderable per MIL-STD-750, Method 2026
* MountingPosition:Any
SOT-23
* Weight : Approximated 0.008 gram
SOT-23 Outline Dimensions
Unit:mm
A
Dim
Min
0.37
1.20
2.10
0.89
0.46
1.78
2.80
0.01
0.89
0.35
0.09
Max
0.50
1.40
2.64
1.09
1.00
2.04
3.04
0.13
1.11
0.69
0.18
A
B
C
D
E
G
H
J
B
C
TOP VIEW
D
G
E
H
K
J
K
L
M
L
M
WEITRON
http://www.weitron.com.tw
Rev.A 11-Jan-2011
1/3
WSD490/WSD491
Maximum Ratings and Electrical Characteristics
Rating 25 C Ambient Temperature Unless Otherwise Specified.
Single Phase Half Wave, 60Hz , Resistive or Inductive Load.
For Capacitive Load, Derate Current by 20%.
Type Number
Symbol
WSD490
WSD491
Unit
Maximum Recurrent Peak Reverse Voltage
Continuous reverse voltage
45
45
25
25
V
RM
V
V
A
V
R
Mean rectifying current
Io
1.0
Forward surge current, 8.3 ms Single Half
A
I
FSM
3.0
Sine-Wave Superimposed on Rated Load (JEDEC Method)
Maximum Instantaneous Forward Voltage at 1.0A
Maximum DC Reverse Current Ta=25 C
At Rated DC Blocking Voltage Ta=100 C
Operating Temperature Range
V
F
0.50
0.45
V
0.2
4.0
mA
I
R
mA
C
Tj
-50 to + 125
-50 to + 125
Storage Temperature Range
TSTG
C
Device Marking
Item
Marking
Eqivalent Circuit diagram
1
3
WSD491
10T
CATHODE
ANODE
1
3
WSD490
10F
CATHODE
ANODE
WEITRON
http://www.weitron.com.tw
Rev.A 11-Jan-2011
2/3
WSD490/WSD491
1.2
50
10
1.0
0.8
0.6
Single Phase
3.0
1.0
Half Wave 60Hz
Resistive Or Inductive Load
0.4
0.2
0
TJ=25 C
0
20
40
60
80
100
120
140
160
180
200
Pulse Width 300us
1% Duty Cycle
AMBIENT TEMPERATURE ( C)
0.1
.01
FIG.2 Typical Forward Current Derating Curve
.1
.2
.3
.4
.5
.6
.7
.8
175
150
125
100
75
FORWARE VOLTAGE.(V)
FIG.1 Typcial Forward Characteristics
100
50
10
25
0
.01
.05
.1
.5
1
5
10
50 100
REVERSE VOLTAGE (V)
1.0
Tj=75 C
FIG .4 Typical Junction Capacitance
Tj=25 C
.1
.01
0
20
40
60
80 100 120 140
PERCENTAGE RATED PEAK REVERSE VOLTAGE
FIG.3 Typical Reverse Characteristics
WEITRON
http://www.weitron.com.tw
Rev.A 11-Jan-2011
3/3
相关型号：
WSD520BS
Rectifier Diode, Schottky, 1 Element, 0.1A, 30V V(RRM), Silicon, ROHS COMPLIANT PACKAGE-2
WEITRON
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