FEATURES
◇ Glass passivated device
◇ Ideal for surface mounted applications
◇ Low leakage
◇ Low forward voltage drop
◇ High current capability
◇ Easily cleaned with Alcohol,Isopropnol
and similar solvents
◇ The plastic material carries U/L
recognition 94V-0
MECHANICAL DATA
◇ Case: JEDEC DO-213AB,molded plastic
◇ Terminals: Solderable per MIL- STD-202,
Method 208
◇ Polarity: Color band denotes cathode
◇ Weight: 0.0046 ounces, 0.116 grams
◇ Mounting position: Any
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25℃ ambient temperature unless otherwise specified.
Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate current by 20%.
SM4933 SM4934 SM4935 SM4936 SM4937
Maximum recurrent peak reverse voltage VRRM 100 200 400 600 V
Maximum RMS voltage
VRMS
70 140 280 420 V
Maximum DC blocking voltage VDC 100 200 400 600 V
Maximum average forward rectified current
@TA=55℃
Peak forward surge current
8.3ms single half-sine-wave
superimposed on rated load
Maximum instantaneous forward voltage
@1.0A VFV
Maximum reverse current @TA=25℃
at rated DC blocking voltage @TA=125℃
Maximum reverse recovery time (Note1) trr ns
Typical junction capacitance (Note2)
Cj
pF
Maximum thermal resistance (Note3)
RθJL
℃/W
Maximum thermal resistance (Note4)
RθJA
℃/W
Operating junction temperature range Tj℃
Storage temperature range
TSTG
℃
NOTE: 1. Test conditions:IF=1.0A,VR=30V.
2. Measured at 1.0MHz and applied reverse voltage of 4.0V DC.
3. Thermal resistance junction to terminal 6.0mm2 copper pads to each terminal.
4. Thermal resistance junction to ambient 6.0mm2 copper pads to each terminal.
UNITS
30
75
www.galaxycn.com
35
A
-55 --- + 150
-55 --- + 150
200
15
IR5.0
IFSM A
µA
100
I(AV) 1.0
1.2
SURFACE MOUNT RECTIFIER
30
50
50
VOLTAGE RANGE: 50 --- 600 V
CURRENT: 1.0 A
DO-213AB
BL GALAXY ELECTRICAL SM4933 - - - SM4937
Document Number 0280087 1.
BLGALAXY ELECTRICAL
www.galaxycn.com
Document Number 0280087 2.
BLGALAXY ELECTRICAL
AMPERES
AMPERES
AMPERES
FIG.2 -- TYPICAL FORWARD CHARACTERISTIC FIG.3 -- FORWARD DERATING CURVE z
FIG.4 -- TYPICAL JUNCTION CAPACITANCE FIG.5 -- PEAK FORWARD SURGE CURRENT
LEAD TEMPERATURE,
PEAK FORWARD SURGE CURRENT
NUMBER OF CYCLES AT 60Hz REV ERSE VOLTAGE,VOLTS
SM4933 - - - SM4937
F IG.1 - - TEST CIRCUIT DIA G RAM AND REVERSE RECOVERY TIME CHARACTERISTIC
AVERAGE FORWARD CURRENT
SET TIME BASE FOR 80ns/cm
JUNCTION CAPACITANCE,pF
NOT ES:1.RISE TI ME = 7ns M AX.INPUT IMPEDANCE = 1M .22pF.
JJJJJ2.RI S E TIME =10ns MAX.S OURCE I MP EDANCE=50 .
RATINGS AND CHARACTERISTIC CURVES
INSTANTANE OUS FORW ARD VOLTAGE, VOLTS
INSTANTANEOUS FORWARD CURRENT
PULSE
GENERATOR
(NOTE2)
D.U.T.
1
NONIN-
DUCTIVE
50
N1. 10
N1.
OSCILLOSCOPE
(NOTE 1)
(+)
25VDC
(approx)
(-)
-1.0A
-0.25A
0
+0.5A
trr
1cm
0
40
50
110 100
30
5
8.3ms Single Ha lf
Sine-Wave
50
10
20
1.0
.8
.6
.4
.2
00255075100125150175
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
TJ = 25
Pulse Width = 300us
1% Duty Cycle
.6 .8 1.0 1.2 1.4
20
10
1.0
.1
.01
200
100
60
40
20
10
6
4
2
1.1 .2 .4 1.0 2 4 10 20 40 100
TJ = 25
