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DS26002 Rev. 7 - 2
1 of 2
www.diodes.com
1N4933-1N4937
? Diodes Incorporated
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 (Note 4)
Mechanical Data
?
Case: DO-41
?
Case Material: Molded Plastic.
UL Flammability Classification Rating
94V-0
?
Moisture Sensitivity: Level 1 per J-STD-020D
?
Terminals: Finish - Bright Ti
n. Plated Leads Solderable per MIL-
STD-202, Method 208
?
Polarity: Cathode Band
?
Mounting Position: Any
?
Ordering Information: See Page 2
?
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
Maximum Ratings and
Electrical Characteristics
@TA
= 25°C unless otherwise specified
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Characteristic
Symbol
1N4933
1N4934
1N4935
1N4936
1N4937
Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage (Note 5)
VRRM
VRWM
VR
50
100
200
400
600
V
RMS Reverse Voltage
VR(RMS)
35
70
140
280
420
V
Average Rectified Output Current (Note 1) @ TA
= 75
°C
IO
1.0
A
Non-Repetitive Peak Forward Surge Current 8.3ms
Single Half Sine-Wave Superimposed on Rated Load
IFSM
30
A
Forward Voltage Drop @ IF
= 1.0A
VFM
1.2
V
Peak Reverse Current @TA
= 25
°C
at Rated DC Blocking Voltage (Note 5) @ TA
= 100
°C
IRM
5.0
100
μA
Reverse Recovery Time (Note 3)
trr
200
ns
Typical Total Capacitance (Note 2)
CT
15
pF
Typical Thermal Resistance Junction to Ambient
RθJA
100
°C/W
Operating and Storage Temperature Range
TJ, TSTG
-65 to +150
°C
Notes: 1. Leads maintained at ambient temperature at a distance of 9.5mm from the case.
2. Measured at 1.0MHz and applied reverse voltage of 4.0V DC.
3. Measured with IF
= 0.5A, I
R
= 1A, I
rr
= 0.25A.
4. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied, see EU Directive 2002/95/EC Annex Notes.
5. Short duration pulse test used to minimize self-heating effect.
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