DIOTEC ELECTRONICS CORP
18020 Hobart Blvd., Unit B
Gardena, CA 90248 U.S.A
Tel.: (310) 767-1052 Fax: (310) 767-7958
Looking For: MR820, MR821, MR822,
MR824, MR826 Replacements?
35 AMP LEAD MOUNT FAST RECOVERY BUTTON DIODES
FEATURES
MECHANICAL SPECIFICATION
SUGGESTED REPLACEMENT FOR MR820, MR821
MR822, MR824, MR826 DIODES
HIGH FREQUENCY: 250 kHz
FAST RECOVERY: Typical 100nS - 150nS
UNMATCHED PERFORMANCE - Minimal RFI/EMI,
Reduced Power Losses, Extremely Cool Operation
Increased Power Supply Efficiency
VOID FREE Vacuum Die Soldering For Maximum
Mechanical Strength And Heat Dissipation
(Solder Voids: Typical < 2%, Max. < 10% of Die Area)
Proprietary Junction Passivation For Superior
Reliability and Performance
Wide Range of Applications - Inverters, Converters
Choppers, Power Supplies, etc.
MECHANICAL DATA
Case: Molded Epoxy (UL Flammability Rating 94V-O)
Finish: All external surfaces are corrosion resistant
and the contact areas are readily solderable
Maximum Lead Soldering Temperature: 210 C, 3/8"
case for 10 seconds at 5 lbs tension
Mounting Position: Any
Polarity: Color band or diode symbol on case
Weight: 0.09 Ounces (2.5 Grams)
o
D
A
Die Size:
0.180" x 0.180"
Square
E
MILLIMETERS
DIM
MIN
MAX
INCHES
MIN
0.332
0.234
0.050
0.215
0.165
0.990
5° NOM
MAX
0.342
0.246
0.053
0.225
0.175
1.010
L
M
F
B
A
B
D
E
F
L
M
5° NOM
L
R
C
HS
o
OM
T
IAN
PL
MAXIMUM RATINGS & ELECTRICAL CHARACTERISTICS
Ratings at 25 °C ambient temperature unless otherwise specified.
PARAMETER (TEST CONDITIONS)
Series Number
Maximum DC Blocking Voltage
Maximum RMS Voltage
Maximum Peak Recurrent Reverse Voltage
Average Forward Rectified Current
Peak Forward Surge Current (8.3mS single half sine wave
superimposed on rated load)
Maximum Forward Voltage at 35 Amps DC
Maximum Average DC Reverse Current
At Rated DC Blocking Voltage
Maximum Reverse Recovery Time
(I
F
= 1.0 Amp to V
R
= 30 Vdc)
(I
FM
= 15 Amp, di/dt = 25 A/
m
s)
Junction Operating and Storage Temperature Range
Notes: 1) Both Leads to Heatsink, Equal Length
@ T
C
= 25 C
o
@ T
C
= 100 C
o
SYMBOL
RATINGS
DR
SRP DR
3501S 821
820
DR
822
200
140
200
35
600
1.2 (Typical 1.1)
2.0
100
0.8
200 (Typ. 150)
300 (Typ. 150)
-65 to +175
DR
824
400
280
400
DR
826
600
420
600
UNITS
V
RM
V
RMS
V
RRM
I
O
I
FSM
V
FM
I
RM
R
G
JC
T
RR
T
J,
T
STG
50
35
50
100
70
100
VOLTS
AMPS
VOLTS
m
A
°C/W
nSec
°C
Typical Thermal Resistance, Junction to Case (Note 1)
Data Sheet No. DR820-1A
Suggestions & Announcements
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