PSD490 [PACELEADER]
SURFACE MOUNT SCHOTTKY BARRIER DIODES; 表面贴装肖特基势垒二极管
| 型号： | PSD490 |
| 厂家： | 
PACELEADER INDUSTRIAL |
| 描述： | SURFACE MOUNT SCHOTTKY BARRIER DIODES |
| 文件： | 总2页 (文件大小：167K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PSD490 thru PSD491
SURFACE MOUNT SCHOTTKY BARRIER DIODES
SCHOTTKY BARRIER RECTIFIERS 1.0A MPERES 20~40 VOLTS
SC-59
1.06(2.70)
1.22(3.10)
.049(1.25)
.065(1.65)
3
.051(1.30)
.089(2.25)
TOP VIEW
0.67(1.70)
1.18(3.00)
1
2
.014(0.35)
.020(0.50)
.067(1.7)
.090(2.30)
.039(1.00)
.051(1.30)
.004(0.10)
.010(0.26)
0.00
.004(0.10)
.008(0.20)
.024(0.60)
FEATURES
MECHANICAL DATA
Low Turn-on Voltage
Case SOT-346/SC-59 Molded Plastic
Fast Switching
Terminals Solderable per MIL-STD-202, Method 208
Polarity See Diagrams Below
PN Junction Guard Ring for Transient and
ESD Protection
Weight 0.008gram (approx)
Mounting Position Any
MAXIMUM RATIXGS AND ELECTRICAL CHARACTERISTICS
o
Ratings at 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
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
PSD491
20
PSD490
40
UNITS
Volts
Volts
Volts
A
14
28
Maximum DC Blocking Voltage
20
40
Maximum Average Forward Rectified Current
1.0
Peak Forward Surge Current 8.3mm Single Half Sine-Wave
Superimposed on Rated Load (JEDEC Method)
A
3.0
Maximum Instantaneous Forward Voltage at 1.0A
V
0.45
0.53
0
Maximum DC Reverse Current TA=25 C
0.2
4.0
mA
0
at Rated DC Blocking Voltage TA=100 C
0
Operating Temperature Range TJ
Storage Temperature Range TSTG
-25 to +125
-50 to +125
C
0
C
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PSD490 thru PSD491
SURFACE MOUNT SCHOTTKY BARRIER DIODES
RATING AND CHARACTERISTICS CURVES PSD490 THRU PSD491
50
1.2
1.0
0.8
10
0.6
Single Phase
3.0
Half Wave 60Hz
0.4
0.2
0
Resistive Or Inductive Load
1.0
0
20
40
60
80
100
120
140
160
180
200
T=25 C
Pulse Width 300us
1% Duty Cycle
AMBIENT TEMPERATURE ( C)
FIG.2 Typical Forward Current Derating Curve
0.1
.01
.1
.3
.5
.7
.9
1.1 1.3 1.5
175
150
125
100
75
FORWARE VOLTAGE.(V)
FIG.1 Typcial Forward Characteristics
100
50
25
10
0
.01
.05
.1
.5
1
5
10
50 100
REVERSE VOLTAGE (V)
FIG .4 Typical Junction Capacitance
1.0
Tj=75 C
Tj=25 C
.1
.01
0
20
40
60
80 100 120 140
PERCENTAGE RATED PEAK REVERSE VOLTAGE
FIG.3 Typical Reverse Characteristics
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