SM4933 THRU SM4937
Features
· The plastic package carries Underwrites Laboratory
Flammability Classification 94V-0
· For surface mounted applications
· Glass passivated junction
· High temperature soldering guaranteed : 250℃/10
seconds, at terminals
CURRENT 1.0 Ampere
VOLTAGE 50 to 600 Volts
MELF (DO-41)
SOLDERABLE ENDS
0.024(0.60)
0.018(0.46)
Mechanical Data
· Case : JEDEC MELF(DO-41) molded plastic body
· Terminals : Lead solderable per MIL-STD-750,
method 2026
· Polarity : Color band denotes cathode end
· Mounting Position : Any
· Weight : 0.0041 ounce, 0.116 gram
0.205(5.20)
0.190(4.80)
0.105(2.70)
0.095(2.40)
Dimensions in inches and (millimeters)
Maximum Ratings And Electrical Characteristics
(Ratings at 25℃ ambient temperature unless otherwise specified, Single phase, half wave 60Hz, resistive or inductive
load. For capacitive load, derate by 20%)
Symbols
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current
T
A
=75℃
Peak forward surge current 8.3ms half sine
wave superimposed on rated load
(JEDEC method)
Maximum instantaneous forward voltage at 1.0A
Maximum DC reverse current
at rated DC blocking voltage
T
A
=25℃
T
A
=100℃
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
I
R
trr
C
J
Rθ
JA
T
J
T
STG
SM4933
50
35
50
SM4934
100
70
100
SM4935
200
140
200
1.0
30
1.2
5.0
100
150
15.0
60
-55 to +150
-55 to +150
SM4936
400
280
400
SM4937
600
420
600
Units
Volts
Volts
Volts
Amp
Amps
Volts
μA
ns
pF
℃/W
℃
Maximum reverse recovery time (Note 3)
Typical junction capacitance (Note 1)
Typical thermal resistance (Note 2)
Operating and storage temperature range
Notes:
(1) Measured at 1MHz and applied reverse voltage of 4.0V DC.
(2) Thermal resistance from junction to ambient.
(3) Reverse recovery test conditions : I
F
=0.5A, I
R
=1.0A, I
RR
=0.25A
RATINGS AND CHARACTERISTIC CURVES SM4933 THRU SM4937
FIG.1- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
NONINDUCTIVE
DUT
50
NONINDUCTIVE
(-)
PULSE
GENERATOR
( NOTE 2 )
(+)
10
+0.5A
0
-0.25A
trr
(+ )
50Vdc
(approx)
(-)
NON
INDUCTIVE
OSCILLOSCOPE
(NOTE 1)
NOTES: 1. Rise Time=7ns max. Input Impedanec=
1 megohm 22pf
2. Rise Time=10ns max. Sourse Impedance=
50 ohms
-1.0A
1cm
SET TIME BASE FOR
5/ 10ns/ cm
AVERAGE FORWARD RECTIFIED
CURRENT AMPERES
.8
.6
.4
.2
0
0
P.C.B. MONTED ON 0.2X0.2"
(5.0X5.0mm)COPPER AREAS PADS
INSTANTANEOUS FORWARD CURRENT. (A)
1.0
FIG.2- MAXIMUM FORWARD CURRENT DERATING
CURVE
FIG.5- TYPICAL FORWARD CHARACTERISTICS
20
10
3.0
1.0
0.3
0.1
.03
.01
0.6
0.8
1.0 1.2 1.4 1.6 1.8
FORWARD VOLTAGE. (V)
2.0
25
50
75
100
125
150
O
AMBIENT TEMPERATURE. ( C)
175
PEAK FORWARD SURGE CURRENT.AMPERES
Tj=25
O
C
Pulse Width=300us
1% Duty Cycie
30
20
FIG.3- MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
TA=75 C
8.3ms Single Half Sine Wave
JEDEC Method
O
10
0
INSTANTANEOUS REVERSE CURRENT. (mA)
1.0 CYCLE
FIG.6- TYPICAL REVERSE CHARACTERISTICS
100
1
2
4
6 8 10
20
40 6 0 80 10 0
NUMBER OF CYCLES AT 60Hz
Tj=100
O
C
JUNCTION CAPACITANCE.(pF)
20
10
FIG.4- TYPICAL JUNCTION CAPACITANCE
10
Tj=25
O
C
1.0
Tj=25 C
O
f=1 Mhz
Vsig=50mVp-p
1
.10
1
10
REVERSE VOLTAGE. (V)
100
0 20 40
60
80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE. (%)
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