NOT RECOMMENDED FOR NEW DESIGN
USE
RS1A - RS1J Series
Pb
1N4933 - 1N4937
1.0A FAST RECOVERY RECTIFIER
Features
Diffused Junction
Fast Switching for High Efficiency
High Current Capability and Low Forward Voltage Drop
Surge Overload Rating to 30A Peak
Low Reverse Leakage Current
Lead Free Finish, RoHS Compliant (Notes 1 & 2)
Mechanical Data
Case: DO-41
Case Material: Molded Plastic. UL Flammability Classification Rating
94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: Finish - Bright Tin. Plated Leads Solderable per MIL-
STD-202, Method 208
Polarity: Cathode Band
Mounting Position: Any
Marking: Type Number
0.35 grams (Approximate)
Dim
DO-41 Plastic
Min
Max
A
25.40
B
4.06
5.21
C
0.71
0.864
D
2.00
2.72
All Dimensions in mm
Ordering Information
(Note 3)
Device
1N4933-T
1N4934-T
1N4935-T
1N4936-T
1N4937-T
Notes:
Packaging
DO-41
DO-41
DO-41
DO-41
DO-41
Shipping
5K/Tape & Reel, 13-inch
5K/Tape & Reel, 13-inch
5K/Tape & Reel, 13-inch
5K/Tape & Reel, 13-inch
5K/Tape & Reel, 13-inch
1. EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. All applicable RoHS exemptions applied.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
3. For packaging details, go to our website at https://www.diodes.com/design/support/packaging/diodes-packaging/.
Maximum Ratings and Electrical Characteristics
(@T
A
= +25° unless otherwise specified.)
C,
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Characteristic
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage (Note 7)
RMS Reverse Voltage
Average Rectified Output Current (Note 4) @ T
A
= +75C
Non-Repetitive Peak Forward Surge Current 8.3ms
Single Half Sine-Wave Superimposed on Rated Load
Forward Voltage Drop @ I
F
= 1.0A
Peak Reverse Current @T
A
= +25C
at Rated DC Blocking Voltage (Note 7) @ T
A
= +100C
Reverse Recovery Time (Note 6)
Typical Total Capacitance (Note 5)
Typical Thermal Resistance Junction to Ambient
Operating and Storage Temperature Range
Notes:
4.
5.
6.
7.
Symbol
V
RRM
V
RWM
V
R
V
R(RMS)
I
O
I
FSM
V
FM
I
RM
t
RR
C
T
R
JA
T
J,
T
STG
1N4933
50
35
1N4934
100
70
1N4935
200
140
1.0
30
1.2
5.0
100
200
15
100
-65 to +150
1N4936
400
280
1N4937
600
420
Unit
V
V
A
A
V
A
ns
pF
°
C/W
C
Leads maintained at ambient temperature at a distance of 9.5mm from the case.
Measured at 1.0MHz and applied reverse voltage of 4.0V DC.
Measured with I
F
= 0.5A, I
R
= 1A, I
rr
= 0.25A.
Short duration pulse test used to minimize self-heating effect.
1N4933 - 1N4937
Document number: DS26002 Rev. 8 - 3
1 of 3
www.diodes.com
November 2018
© Diodes Incorporated
NOT RECOMMENDED FOR NEW DESIGN
USE
RS1A - RS1J Series
I
(AV)
, AVERAGE FORWARD RECTIFIED CURRENT (A)
1.0
20
)
A
(
T
10
N
E
R
R
U
C
D
R
A
W 1.0
R
O
F
S
U
O
E
N
0.1
A
T
N
A
T
S
N
I
,
F
I
0.01
I
F
, INSTANTANEOUS FORWARD CURRENT (A)
1N4933 - 1N4937
0.8
0.6
0.4
0.2
PC Board Mounted
9.5mm Lead Lengths
T
j
= 25°
C
Pulse Width = 300µs
0
0
25
50
75
100
125
150
175
C)
T
A
, AMBIENT TEMPERATURE
(°
)
(篊
Fig. 1 Forward Current Derating Curve
0.6
0.8
1.0
1.2
1.4
1.6
V
F
, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
30
100
I
FSM
, PEAK FORWARD SURGE CURRENT (A)
20
10
0
1
10
100
NUMBER OF CYCLES AT 60 Hz
Fig. 3 Max Non-Repetitive Peak Forward Surge Current
C
T
TOTAL CAPACITANCE (pF)
Pulse Width
8.3ms Single Half
Sine-Wave
25°
C
10
1
1
10
V
R
, DC REVERSE VOLTAGE (V)
Fig. 4 Typical Total Capacitance
100
1N4933 - 1N4937
Document number: DS26002 Rev. 8 - 3
2 of 3
www.diodes.com
November 2018
© Diodes Incorporated
NOT RECOMMENDED FOR NEW DESIGN
USE
RS1A - RS1J Series
1N4933 - 1N4937
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose 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.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2018, Diodes Incorporated
www.diodes.com
1N4933 - 1N4937
Document number: DS26002 Rev. 8 - 3
3 of 3
www.diodes.com
November 2018
© Diodes Incorporated
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