Description
Features
n FAST SWITCHING FOR
HIGH EFFICIENCY
n HIGH SURGE CAPABILITY
Mechanical Dimensions
n 1.0 AMP OPERATION @ T
A
= 55
C, WITH
NO THERMAL RUNAWAY
n MEETS UL SPECIFICATION 94V-0
Maximum Ratings
Peak Repetitive Reverse Voltage...V
RRM
RMS Reverse Voltage...V
R(rms)
DC Blocking Voltage...V
DC
1N4933 . . . 37 Series
Average Forward Rectified Current...I
F(av)
T
A
= 55
C
Non-Repetitive Peak Forward Surge Current...I
FSM
@ Rated Current & Temp
Operating & Storage Temperature Range...T
J
, T
STRG
Maximum Forward Voltage @ 1.0A...V
F
Maximum DC Reverse Current...I
R
@ 25
C
@ Rated DC Blocking Voltage
@ 100
C
Typical Junction Capacitance...C
J
(Note 1)
Maximum Reverse Recovery Time...t
RR
Data Sheet
1.0 Amp FAST RECOVERY
PLASTIC RECTIFIERS
1N4933 . . . 37 Series
Units
1N4933
1N4934
1N4935
IN4936
IN4937
50
100
200
400
600
35
70
140
280
420
50
100
200
400
600
Volts
Volts
Volts
............................................. 1.0 ...............................................
............................................. 30 ...............................................
........................................ -65 to 150 .........................................
............................................. 1.2 ...............................................
............................................. 5.0 ...............................................
............................................. 100 ...............................................
............................................. 12 ...............................................
............................................. 200 ...............................................
Amps
Amps
C
Volts
Amps
Amps
pF
ns
Page 4-2
.205
.160
1.00 Min.
.031 typ.
.080
.107
JEDEC
D0-41
Electrical Characteristics
Data Sheet
1.0 Amp FAST RECOVERY
PLASTIC RECTIFIERS
1N4933 . . . 37 Series
Page 4-3
NOTES: 1. Measured @ 1 MHz and applied reverse voltage of 4.0V.
2. Thermal Resistance Junction to Ambient, Jedec Method.
Ratings at
25 Deg. C ambient
temperature
unless otherwise
specified.
Single Phase Half
Wave, 60 Hz
Resistive or
Inductive Load.
For Capacitive
Load, Derate
Current by 20%.
Forward Current Derating Curve
1.5
1.0
.5
0
25
50
75 100
150
125
175
Ambient Temperature (
C)
Average Forward Current (A)
Reverse Recovery Characteristics
Peak Forward Surge Current (A)
Typical Instantaneous Forward Characteristics
Non-Repetitive
Peak Forward Surge Current
Number of Cycles @ 60 Hz
Forward Current (A)
Forward Voltage (V)
Junction Capacitance (pF)
Typical Junction Capacitance
Reverse Voltage (V)
100
50
10
.1
1
1
10
100
T
J
= 25
C
10
1
.1
.01
.6
.8
1.0
1.2
1.4
Non-Inductive
1
Non-
Inductive
D.U.T
10
Oscilliscope
Note 1
Pulse
Generator
Note 2
(-)
(+)
50
(-)
(+)
25 VDC
Notes: 1. Rise Time = 7 ns Max.
Impedance = 1 megohm, 22 pF
2. Rise Time = 10 ns Max.
Source Impedance = 50 Ohms
Time Base Set @ 50/100ns/cm
+.5A
0A
-.25A
-1.0A
1 cm
t
RR
100
10
1
1
10
100
1000
T
J
= 25
C
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