Fairchild Semiconductor 1N4937, 1N4936, 1N4935, 1N4934, 1N4933 Datasheet
1N4933 - 1N4937
Features
•Low forward voltage drop.
•High surge current capability.
• High reliability.
• High current capability.
COLOR BAND DENOTES CATHODE
1.0 Ampere Fast Recovery Rectifiers
DO-41
Discrete POWER & Signal
Technologies
1.0 min(25.4)
Dimensions in
inches (mm)
0.205(5.21)
0.160(4.06)
0.107(2.72)
0.080(2.03)
0.034(0.86)
0.028(0.71)
1N4933-1N4937
Absolute Maximum Ratings* T
= 25°C unless otherwise noted
A
Symbol Parameter Value Units
I
O
i
f(surge)
P
D
R
θ
JA
T
stg
T
J
Average Rectified Current
.375 " lead length @ T
= 50°C
A
Peak Forward Surge Current
8.3 ms single half-sine-wave
Superimposed on rated load (JEDEC method)
Total Device Dissipation
Derate above 25°C
Thermal Resistance, Junction to Ambient 50
Storage Temperature Range -50 to +150
Operating Junction Temperature -50 to +150
1.0 A
30 A
2.5
20
mW/°C
C/W
°
W
C
°
C
°
*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.
Electrical Characteristics T
= 25°C unless otherwise noted
A
Parameter Device Units
4933 4934 4935 4936 4937
Peak Repetitive Reverse Voltage 50 100 200 400 600 V
Maximum RMS Voltage 35 70 140 280 420 V
DC Reverse Voltage (Rated VR)
Maximum Reverse Current
@ rated V
R
TA = 25°C
T
= 100°C
A
Maximum Reverse Recovery Time
I
= 0.5 A, IR = 1.0 A, I
F
= 0.25 A
RR
Maximum Forward Voltage @ 1.0 A 1.2 V
Typical Junction Capacitance
V
= 4.0 V, f = 1.0 MHz
R
50 100 200 400 600 V
5.0
100
150 nS
12 pF
A
µ
A
µ
1999 Fairchild Semiconductor Corporation
1N4933-1N4937, Rev. A
T ypical Characteristics
1N4933-1N4937
Forward Current Derating Curve
1
0.8
0.6
SINGLE PHASE
HALF WAVE
0.4
60HZ
RESISTIVE OR
INDUCTIVE LOAD
0.2
.375" 9.0 mm LEAD
FORWARD CU RRENT (A)
LENGTHS
0
0 25 50 75 100 125 150 175
AMBI ENT TE MPERATURE ( C)
º
Non-Repetitive Surge Current
40
30
20
10
0
PEAK FORWARD SURGE CURRENT (A)
12 51020 50100
NUMBER OF CYCLES AT 60Hz
Forward Characte ristics
20
10
3
1
0.3
0.1
FORWARD CURRENT (A)
0.03
0.01
0.6 0.8 1 1.2 1.4 1.6 1.8 2
º
º
T = 25 C
T = 25 C
J
A
Pulse Width = 200µS
Pulse Width = 300µS
2% Dut y Cycle
2% Dut y Cycle
FORWARD VOLTAGE (V)
Reverse Characteristics
100
T = 100 C
º
µ
10
1
REVERSE CURRENT ( A)
0.1
0 20406080100120140
PERCENT OF RA TE D PEA K REVER SE VO LTAGE (%)
A
T = 25 C
T = 25 C
º
º
J
A
T ypical Junction Capacitance
20
10
5
2
JUNCTION CAPACITANCE (pF)
1
1 2 5 10 20 50 100
50
Ω
NONINDUCTIVE
50V
(approx)
Ω
50
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.
Ω
50
NONINDUCTIVE
DUT
OSCILLOSCOPE
(Note 1)
REVER SE VOLTAGE (V)
(-)
Pulse
Generator
(Note 2)
(+)
Reverse Recovery Time Characterstic and Test Circuit Diagram
+0.5A
trr
0
-0.25A
-1.0A
1.0cm SET TIME BASE FOR
5/ 10 ns/ cm
1N4933-1N4937, Rev. A
Loading...