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SEP ELECTRONIC

SM4933 Datasheet Preview

SM4933 Datasheet

1.0A Surface Mount Fast Recovery Rectifier

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SEP ELECTRONIC CORP.
SM4933 thru SM4937
1.0 A Surface Mount Fast Recovery Rectifier
Rectifier Reverse Voltage 50 to 600V
SMA / DO-214AC
Features
Ideal for surface mounted applications
Fast switching for high efficiency
High current capability and low Forward
Voltage Drop
Surge overload rating to 30A peak
Low reverse leakage current
.087(2.2)
Plastic material has UL flammability
classification 94V-0
Mechanical Data
.071(1.8)
.177(4.8)
Soldering Pad
Case: Molded plastic
Terminals: Solder plated solderable per MIL-STD-202,
Method 208
Polarity: Cathode indicated with color band
Weight: 0.063 grams (approx)
.177(4.50)
.157(3.99)
.058(1.47)
.052(1.32)
.090(2.29)
.078(1.98)
.060(1.52)
.030(0.76)
.208(5.26)
.194(4.93)
.110(2.79)
.100(2.54)
.090(2.29)
.078(1.98)
.005(.127)
max.
All dimensions inches and (millimeters)
Maximum Ratings & Thermal Characteristics
Rating at 25 C ambient temperature unless otherwise specified, Resistive or Inductive load, 60 Hz.
For Capacitive load derate current by 20%.
Parameter
Symbol SM4933 SM4934 SM4935 SM4936 SM4937 unit
Maximum repetitive peak reverse voltage
VRRM
50
100
200
400 600 V
Maximum RMS bridge input voltage
VRMS
35
70
140
280 420 V
Maximum DC blocking voltage
VDC
50
100
200
400 600 V
Maximum average forward rectified
output current at TA=75 C
IF(AV)
1.0
A
Peak forward surge current single sine-wave
superimposed on rated load (JEDEC Method)
IFSM
30.0
A
Maximum reverse recovery time TJ=25 C
Trr
150
nS
Typical thermal resistance per element
ReJA
50
/W
Typical junction capacitance per element
Operating junction and storage temperature
range
Cj
TJ,
TSTG
15
-55 to + 150
pF
Electrical Characteristics
Rating at 25 C ambient temperature unless otherwise specified. Resistive or Inductive load, 60Hz.
For Capacitive load derate by 20 %.
Parameter
Symbol SM4933 SM4934 SM4935 SM4936 SM4937 Unit
Maximum instantaneous forward voltage drop
per leg at 1.0A
VF
1.3
V
Maximum DC reverse current at rated TA =25 C IR
DC blocking voltage per element
5.0
A
2003 SEP ELECTRONIC CORP.
www.sep.net.cn M099




SEP ELECTRONIC

SM4933 Datasheet Preview

SM4933 Datasheet

1.0A Surface Mount Fast Recovery Rectifier

No Preview Available !

Rating and Characteristic Curves ( TA=25oC Unless otherwise noted )
SM4933 thru SM4937
Fig. 1 Reverse Recovery Time and Test Circuit Diagram
trr
+0.5A
50
N.I.
10
N.I.
0
-0.25A
-1.0A
Set time base for
10/20 ns/cm
1cm
25VDC
(approx)
D.U.T.
1
N.I.
Oscilloscope
(Note 1)
Pulse
Generator
(Note 2)
Note -1.Rise time=7ns max. Iput, Impedance=1M ,22pf
2.Rise time=10ns max Source, Impedance=50
Fig. 2 Derating Curve for
Output Rectified Current
1.2
60Hz Resistive or
1.0 Inductive Load
0.8
0.6
.04 P.C.B. Mounted on
0.3X0.3"(8.0X8.0mm)
0.2 copper pad areas
0
0 25 50 75 100 125 150 175
Ambient Temperature, C
Fig. 4 Typical Instantaneous
Forward Characteristics
20
10
Fig. 3 Peak Forward Surge Current
30
8.3 ms
25 Single half-sine-Wave
[JEDEC Method]
20
15
10 1cycle
5
TA=75 C
0
1 10 100
Number of Cycles at 60HZ
Fig. 5 Typical Junction Capacitance
20
Tj=25 C
10
1.0
0.1
Tj=25 C
Pulse Width=300us
1% duty cycle
.01
0.6 0.8 1.0 1.2
Instantaneous Forward
Voltage, Volts
1.4
2003 SEP ELECTRONIC CORP.
1
1 10
Reverse Voltage, Volts
100
www.sep.net.cn M099


Part Number SM4933
Description 1.0A Surface Mount Fast Recovery Rectifier
Maker SEP ELECTRONIC
Total Page 2 Pages
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