1N4933 THRU 1N4937
FAST SWITCHING PLASTIC RECTIFIER
Reverse Voltage -
50 to 600 Volts
DO-204AL
Forward Current -
1.0 Ampere
FEATURES
♦
Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
♦
Fast switching for high efficiency
♦
Construction utilizes void-free molded plastic technique
♦
1.0 Ampere operation at T
A
=75°C with no thermal
runaway
♦
High temperature soldering guaranteed:
250°C/10 seconds, 0.375” (9.5mm) lead length,
5 lbs. (2.3kg) tension
1.0 (25.4)
MIN.
0.107 (2.7)
0.080 (2.0)
DIA.
0.205 (5.2)
0.160 (4.1)
MECHANICAL DATA
1.0 (25.4)
MIN.
0.034 (0.86)
0.028 (0.71)
DIA.
Dimensions in inches and (millimeters)
Case:
JEDEC DO-204AL molded plastic body
Terminals:
Plated axial leads, solderable per MIL-STD-750,
Method 2026
Polarity:
Color band denotes cathode end
Mounting Position:
Any
Weight:
0.012 ounce, 0.34 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
SYMBOLS
1N4933
1N4934
1N4935
1N4936
1N4937
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) at T
A
=75°C
*Maximum instantaneous forward voltage at 1.0A
*Maximum DC reverse current
at rated DC blocking voltage
T
A
=25°C
T
A
=100°C
V
RRM
V
RMS
V
DC
I
(AV)
50
35
50
100
70
100
200
145
200
1.0
400
280
400
600
420
600
Volts
Volts
Volts
Amp
I
FSM
V
F
I
R
t
rr
I
RM
C
J
R
ΘJA
R
ΘJL
T
J
, T
STG
30.0
1.2
5.0
100.0
200.0
2.0
12.0
55.0
25.0
-50 to +150
Amps
Volts
µA
ns
Amps
pF
°C/W
°C
*Maximum reverse recovery time
(NOTE 1)
T
J
=25°C
*Maximum reverse recovery current
(NOTE 1)
Typical junction capacitance
(NOTE 2)
Typical thermal resistance
(NOTE 3)
*Operating junction and storage temperature range
NOTES:
(1) Reverse recovery test conditions: I
F
=1.0A, V
R
=30V, di/dt=50A/µs, and I
rr
=10% I
RM
for measurement of t
rr
(2) Measured at 1.0 MHz and applied reverse voltage of 4.0 Volts
(3) Thermal resistance from junction to ambient and from junction to lead at 0.375" (9.5mm) lead length, P.C.B. mounted
*JEDEC registered values
4/98
RATINGS AND CHARACTERISTIC CURVES 1N4933 THRU 1N4937
FIG.1 - FORWARD CURRENT DERATING
CURVE
AVERAGE FORWARD RECTIFIED CURRENT,
AMPERES
1.0
0.8
PEAK FORWARD SURGE CURRENT,
AMPERES
I
(pk)
I
(AV)
FIG. 2 - MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT
=π
30
T
A
=75°C
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
0.375” (9.5mm)
LEAD LENGTH
0.6
CAPACITIVE LOADS
I
(pk)
5.0
I
(AV) =
10
20
20
1.0 CYCLE
0.4
10
0.2
0
0
0
25
50
75
100
125
150
175
AMBIENT TEMPERATURE, °C
1
10
NUMBER OF CYCLES AT 60 H
Z
100
FIG. 3 - TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
20
10
INSTANTANEOUS FORWARD CURRENT
AMPERES
INSTANTANEOUS REVERSE CURRENT,
MICROAMPERES
FIG. 4 - TYPICAL REVERSE CHARACTERISTICS
100
10
T
J
=100°C
T
J
=25°C
PULSE WIDTH=300µs
1% DUTY CYCLE
1
1
0.1
T
J
=25°C
0.1
0.01
0
20
40
60
80
100
PERCENT OF RATED PEAK REVERSE
VOLTAGE, %
0.01
0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
FIG. 6 - TYPICAL TRANSIENT THERMAL IMPEDANCE
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
100
TRANSIENT THERMAL IMPEDANCE,
°C/W
100
JUNCTION CAPACITANCE, pF
T
J
=25°C
f=1.0 MHz
Vsig=50mVp-p
10
10
1
1
0.1
1
10
100
0.1
0.01
0.1
1
t, PULSE DURATION, sec.
10
100
REVERSE VOLTAGE, VOLTS
Microcontroller MCU
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