1N4933-1N4937
Fast Recovery Rectifier
DO-41
Features
Low cost construction
Fast switching for high efficency.
Low reverse leakage
High forward surge current capability
High temperature soldering guaranteed:
260 C/10 seconds/0.375
＂
(9.5mm)lead length
at 5 lbs (2,3kg) tension
o
Mechanical Data
Case:
Transfer molded plastic
Polarity:
Color band denotes cathode end
Mounting position:
Any
Weight:
0.012 ounce,0.33 gram
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
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%.
SYMBOLS
IN4933 IN4934 IN4935 IN4936 IN4937
UNITS
Maximum Repetitive Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
0.375
”
(9.5mm) lead length at T
A
=75 C
Peak Forward Surge Current
8.3ms single 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 C
o
T
A
=100 C
o
o
o
V
RRM
V
RMS
V
DC
I
(AV)
50
35
50
100
70
100
200
140
200
1.0
400
280
400
600
420
600
V
olts
V
olts
V
olts
A
mp
I
FSM
V
F
I
R
30
1.2
5.0
100
200
2.0
15
50
A
mps
V
olts
A
mps
Maximum Reverse Rec very Time(NOTE3)
o
T
j
=25 C
Maximum Reverse Recovery Current(NOTE 3)
Typical Junction Capacitance(NOTE1)
Typical Thermal Resistance(NOTE2)
t
rr
I
RM(REC)
C
J
R
JA
n
S
A
mps
p
F
O
C/W
O
T
J
,T
STG
-65 to +150
Operating and Storage Temperature Range
NOTES:
1.Measured at 1.0 MHz and applied reverse voltage of 4.0 Volts.
2.Thermal Resistance from Junction to Ambient at 0.375”(9.5mm) lead length,P.C.board mounted.
3.Reverse Recovery Test Conditions:I
F
=1.0A,V
R
=30V,di/dt=50A/ s,I
rr
=10% I
RM
for measurement of t
rr
.
C
http://www.luguang.cn
mail:lge@luguang.cn
1N4933-1N4937
Fast Recovery Rectifier
FIG.1-TYPICAL FORWARD CURRENT
DERATING CURVE
AVERAGE FORWARD CURRENT,
1.2
1.0
0.8
0.6
0.4
0.2
0
0
25
50
75
100
125
o
FIG.2-MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
PEAK FORWARD SURGE
30
8.3ms Single Half Sine-Wave
(JEDEC Method) T
j
=T
j
max
CURRENT,(A)
(A)
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
0.375
＂
(9.5mm) Lead Length
20
10
1 Cycle
150
175
0
AMBIENT TEMPERATURE,( C)
1
2
4
6
8
10
20
40
60 80100
NUMBER OF CYCLES AT 60 Hz
FIG.3-TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT,
10
20
100
FIG.4-TYPICAL REVERSE
CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT,
10
T
j
=100 C
o
1.0
(uA)
1.0
(A)
T
j
=25 C
0.1
o
0.1
T
j
=25 C
Pulse Width=300us
1% Duty Cycle
o
0.01
0.7
0.9
1.1
1.3
1.4
INSTANTANEOUS FORWARD VOLTAGE,(V)
0.01
0
20
40
60
80
100
120
140
PERCENT OF RATED PEAK
REVERSE VOLTAGE,(%)
FIG.5-TYPICAL JUNCTION CAPACITANCE
100
FIG.6-TEST CIRCUIT DIAGRAM AND
REVERSE RECOVERY TIME CHARACTERISTIC
8
JUNCTION CAPACITANCE,(pF)
115 Va
60Hz
10K
2W
1
2
3
7
3.8uH/1.4
6
10
C.P. CLARE
HPG 1002
5
4
UNIT
UNDER TEST
1.AMP
SLO-BLO
FUSE
C1
1.0uF
300V
R2
1
10W
NON-
INDUCTIVE
30
50W
NON-INDUCTIVE
1.0Adc RROM
CONSTANT
VOLTAGE SUPPLY
RIPPLE=3mVrms MAX
C1
1.0uF
300V
30 Vdc
CONSTANT VOLTAGE
+
SUPPLY
-
+
-
T
j
=25 C
f=1MHz
V
sig
=50mVp-p
1
o
MINIMIZE ALL LEAD LENGTHS
1
-
Zout 1
2
MAX
DC to 2kHz
A-TEKRONNIX 545A.K.PLUG IN
PRE AMP P6000 PROBE OR EQUIVALENT
RI-ADJUSTED FOR 1.4 BETEEN
POINT 2 OF RELAY AND RECTIFIER
IFM
1.0
Trr
d
f
/d
t
=50A/us
I(t)
0.1
1.0
10
100
INDUCTIVE = 3.8uH
R2-TEN-1W 10 CARBON CORE
IN PARALLEL
TA=25
+10
-0
o
0
REVRESE VOLTAGE,(V)
C
FOR RECTIFIER
IRM(REC)
SET TIME BASE FOR
50/100ns/cm
http://www.luguang.cn
mail:lge@luguang.cn
PCB Design
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