Features
Low forward voltage drop.
•
• High surge current capability.
• High reliability.
• High current capability.
Fast Rectifiers
1N4933 - 1N4937
COLOR BAND DENOTES CATHODE
1N4933-1N4937
DO-41
Absolute Maximum Ratings* T
Symbol
V
Maximum Repetitive Reverse Voltage 50 100 200 400 600 V
RRM
I
Average Rectified Forward Current,
F(AV)
I
Non-repetitive Peak Forward Surge Current
FSM
T
stg
.375 " lead length @ T
8.3 ms Single Half-Sine-Wave
Storage Temperature Range -50 to +150
Parameter
= 50°C
A
= 25°C unless otherwise noted
A
4933 4934 4935 4936 4937
Value
1.0 A
30 A
TJ Operating Junction Temperature -50 to +150
*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.
Thermal Characteristics
Symbol
PD Power Dissipation 2.5 W
R
θJA
Thermal Resistance, Junction to Ambient 50
Electrical Characteristics T
Symbol
VF Forward Voltage @ 1.0 A 1.2 V
trr Reverse Recovery Time
= 0.5 A, IR = 1.0 A, I
I
IR
CT Total Capacitance
F
Reverse Current @ rated V
= 4.0 V, f = 1.0 MHz
V
R
Parameter
Parameter
= 0.25 A
rr
R TA
= 25°C unless otherwise noted
A
= 25°C
= 125°C
T
A
Value
Device
4933 4934 4935 4936 4937
150 ns
5.0
100
12 pF
Units
°C
C
°
Units
C/W
°
Units
A
µ
µA
1N4933-1N4937, Rev. C2001 Fairchild Semiconductor Corporation
T ypical Characteristics
1N4933-1N4937
1
[A]
F
0.8
0.6
SINGLE PHASE
HALF WAVE
0.4
60HZ
RESISTIVE OR
INDUCTIVE LOAD
0.2
.375" 9.0 mm LE AD
LENGTHS
0
0 25 50 75 100 125 150 175
Average Rectified Forward Current, I
Ambient Temperature [ºC]
20
10
3
[A]
F
1
0.3
0.1
Forward Current, I
0.03
0.01
0.6 0.8 1 1.2 1.4 1.6 1.8 2
T = 25 C
T = 25 C
º
º
J
A
Pulse Width = 200
Pulse Width = 300
2% Dut y Cycle
2% Dut y Cycle
S
S
µµµµ
µµµµ
Forward Voltage, VF [V]
Figure 1. Forward Current Derating Curve Figure 2. Forward Voltage Characteristics
40
[A]
FSM
30
20
10
0
Peak Forward Surge Current, I
12 51020 50100
Number of Cycles at 60Hz
Figure 3. Non-Repetitive Surge Current
100
T = 100 C
º
A
10
[mA]
R
1
T = 25 C
T = 25 C
º
º
J
A
Reverse Current, I
0.1
0 20406080100120140
Percent of Rated Peak Reverse Voltage [%]
Figure 4. Reverse Current vs Reverse Voltage
20
10
[pF]
T
5
2
Total Capacitance, C
1
1 2 5 10 20 50 100
Reverse Voltage, VR [V]
Figure 5. Total Capacitance
50
Ω
NONINDUCTIVE
50V
(approx)
50Ω
NONINDUCTIVE
NOTES:
1. Rise time = 7.0 ns max; Input impedance = 1.0 megaohm 22 pf.
2. Rise time = 10 ns max; Source impedance = 50 ohms.
50Ω
NONINDUCTIVE
DUT
OSCILLOSCOPE
(Note 1)
(-)
Pulse
Generator
(Note 2)
(+)
Reverse Recovery Time Characterstic and Test Circuit Diagram
+0.5 A
trr
0
-0.25A
-1.0A
1.0cm SET TIME BASE FOR
5/ 10 ns/ cm
1N4933-1N4937, Rev. C2001 Fairchild Semiconductor Corporation
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As used herein:
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systems which, (a) are intended for surgical implant into
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failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
user.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Definition
Advance Information
Preliminary
No Identification Needed
Formative or
In Design
First Production
Full Production
2. A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
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changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
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Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Rev. H4
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