Frontier Electronics Corp.
667 E. COCHRAN STREET, SIMI VALLEY, CA 93065
TEL: (805) 522-9998
FAX: (805) 522-9989
E-mail:
frontiersales@frontierusa.com
Web:
http://www.frontierusa.com
1A SURFACE MOUNT FAST RECOVERY RECTIFIERS
SM4933-LFR THRU SM4937-LFR
FEATURES
FAST SWITCHING
GLASS PASSIVATED DEVICE
IDEAL FOR SURFACE MOUNTED APPLICATIONS
LOW LEAKAGE CURRENT
FAST SWITCHING TIME
ROHS
SOLDERABLE ENDS
.105(2.67)
.095(2.41)
.022(.60)
.018(.46)
MECHANICAL DATA
CASE: TRANSFER MOLDED, MELF, DIMENSIONS
IN INCHES AND (MILLIMETERS)
TERMINALS: SOLDERABLE PER MIL-STD-750, METHOD 2026
POLARITY: CATHODE INDICATED BY COLOR BAND
WEIGHT: 0.135 GRAMS
.205(5.2)
.190(4.8)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS RATINGS AT 25°C AMBIENT TEMPERATURE UNLESS OTHERWISE SPECIFIED
SINGLE PHASE, HALF WAVE, 60 HZ, RESISTIVE OR INDUCTIVE LOAD. FOR CAPACITIVE LOAD, DERATE CURRENT BY 20%
RATINGS
MAXIMUM RECURRENT PEAK REVERSE VOLTAGE
MAXIMUM RMS VOLTAGE
MAXIMUM DC BLOCKING VOLTAGE
MAXIMUM AVERAGE FORWARD RECTIFIED CURRENT
AT TL=75°C
PEAK FORWARD SURGE CURRENT, 8.3ms SINGLE HALF
SINE-WAVE SUPERIMPOSED ON RATED LOAD
TYPICAL JUNCTION CAPACITANCE (NOTE 1)
STORAGE TEMPERATURE RANGE
OPERATING TEMPERATURE RANGE
SYMBOL SM4933-LFR SM4934-LFR SM4935-LFR SM4936-LFR SM4937-LFR UNITS
V
RRM
V
RMS
V
DC
I
O
I
FSM
C
J
T
STG
T
OP
50
35
50
100
70
100
200
140
200
1.0
30
15
- 55 TO + 150
- 55 TO + 150
400
280
400
600
420
600
V
V
V
A
A
PF
℃
℃
ELECTRICAL CHARACTERISTICS (A
T
T
A
=25°C UNLESS OTHERWISE NOTED)
CHARACTERISTICS
MAXIMUM FORWARD VOLTAGE AT Io DC
MAXIMUM REVERSE CURRENT AT 55℃
SYMBOL SM4933-LFR SM4934-LFR SM4935-LFR SM4936-LFR SM4937-LFR UNITS
V
F
I
R
1.3
5.0
150
V
μA
nS
MAXIMUM REVERSE RECOVERY TIME (NOTE 2)
T
RR
NOTE : 1. MEASURED AT 1 MHZ AND APPLIED REVERSE VOLTAGE 0F 4.0 VOLTS
2. REVERSE RECOVERY TEST CONDITIONS: I
F
=0.5A, I
R
=1.0A, I
RR
=0.25A
SM4933-LFR THRU SM4937-LFR
Page: 1
RATING AND CHARACTERISTIC CURVES SM4933-LFR THRU SM4937-LFR
FIG. 1 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
50Ω
NO INDUCTIVE
10Ω
NO INDUCTIVE
FIG. 2 - TYPICAL FORWARD CURRENT
DERATING CURVE
Trr
(-)
+0.5A
AVERAGE FORWARD CURREWT
’
(A)
1.0
.8
.6
.4
.2
0
0
25
50
75
100 125
150
175
D.U.T.
(+)
25 V
dc
(approx)
PULSE
GENERATOR
( NOTE 2 )
1Ω
NON
INDUCTIVE
OSCILLOSCOPE
( NOTE 1 )
0
-0.25A
(-)
(+)
NOTE: 1. RISE TIME=7ns MAX. INPUT
IMPEDANCE=1 MOhms 22PF
2. RISE TIME =10ns MAX. SOURCE
IMPEDANCE=50 OHMS
Single Phase
Half Wave 60H
z
Resistive or
Inductive Load
-1.0A
1cm
SET TIME BASE
FOR
10/20 ns/cm
TERMINAL TEMPERATURE
’
(℃)
FIG. 3 - TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT
’
(
U
A)
10
INSTANTANEOUS FORWARD CURRENT
’
(A)
4
1.0
.4
.1
.04
.01
0
20
40
60
80
100
120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE
’
(%)
FIG. 4 - TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
20
10
T
J
=25℃
pulse Width=300
us
1% Duty Cycle
T
J
=100℃
1.0
0.1
T
J
=25℃
.01
.6
.8
1.0
1.2
1.4
INSTANTANEOUS FORWARD VOLTAGE
’
(V)
FIG. 5 - MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
PEAK FORWARD SURGE CURRENT
’
(A)
50
200
JUNCTION CAPACITANCE
’
(
P
F)
40
100
60
40
20
10
6
4
2
1
.1 .2
.4
1.0
2
4
10 20
40
100
T
J
=25℃
FIG. 6 - TYPICAL JUNCTION CAPACITANCE
30
8.3ms Single Hhalf
9.Sine-Wave (JEDEC Method
20
10
0
1
2
4 6 8 10
20
40 60 80100
NUMBER OF CYCLES AT 60H
Z
REVERSE VOLTAGE
’
(V)
SM4933-LFR THRU SM4937-LFR
Page: 2
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