ON Semiconductor MR850, MR851, MR852, MR854, MR856 Technical data
MR850, MR851, MR852,
MR854, MR856
MR852 and MR856 are Preferred Devices
Axial Lead Fast
Recovery Rectifiers
Axial lead mounted fast recovery power rectifiers are designed for
special applications such as dc power supplies, inverters, converters,
ultrasonic systems, choppers, low RF interference and free wheeling
diodes. A complete line of fast recovery rectifiers having typical
recovery time of 100 nanoseconds providing high efficiency at
frequencies to 250 kHz.
Features
• These are Pb−Free Devices*
Mechanical Characteristics:
• Case: Epoxy, Molded
• Weight: 1.1 Gram (Approximately)
• Finish: All External Surfaces Corrosion Resistant and Terminal
Leads are Readily Solderable
• Lead Temperature for Soldering Purposes:
260°C Max. for 10 Seconds
• Available Tape and Reel, 1200 per Reel, by adding a “RL” Suffix
to the Part Number
• Polarity: Cathode Indicated by Polarity Band
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FAST RECOVERY
POWER RECTIFIERS
3.0 AMPERES, 50−600 VOLTS
AXIAL LEAD
CASE 267
STYLE 1
MARKING DIAGRAM
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
A
MR85x
YYWWG
G
A = Assembly Location
MR85x = Device Number
x = 0, 1, 2, 4 or 6
YY = Year
WW = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
Preferred devices are recommended choices for future use
and best overall value.
© Semiconductor Components Industries, LLC, 2006
July, 2006 − Rev. 5
1 Publication Order Number:
MR850/D
MR850, MR851, MR852, MR854, MR856
Reverse Current (rated DC voltage) TJ = 25°C
MAXIMUM RATINGS
Rating Symbol MR850 MR851 MR852 MR854 MR856 Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
Non−Repetitive Peak Reverse Voltage V
RMS Reverse Voltage V
Average Rectified Forward Current
(Single phase resistive load, TA = 80°C)
Non−Repetitive Peak Surge Current
(Surge Applied at Rated Load Conditions)
Operating and Storage Junction Temperature Range TJ, T
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
THERMAL CHARACTERISTICS
Characteristic Symbol Max Unit
Thermal Resistance, Junction−to−Ambient
(Recommended Printed Circuit Board Mounting)
V
RRM
V
RWM
V
R
RSM
R(RMS)
I
O
I
FSM
stg
50 100 200 400 600 V
75 150 250 450 650 V
35 70 140 280 420 V
3.0 A
100
(one cycle)
− 65 to +125
− 65 to +150
R
q
JA
28 °C/W
A
°C
ELECTRICAL CHARACTERISTICS
Characteristic Symbol Min Typ Max Unit
Forward Voltage
(IF = 3.0 A, TJ = 25°C)
MR850
MR851
TJ = 80°C
MR852
MR854
MR856
REVERSE RECOVERY CHARACTERISTICS
Characteristic Symbol Min Typ Max Unit
Reverse Recovery Time
(IF = 1.0 A to VR = 30 Vdc)
(IF = 15 A, di/dt = 10 A/ms)
Reverse Recovery Current
(IF = 1.0 A to VR = 30 Vdc)
V
F
I
R
t
rr
I
RM(REC)
− 1.04 1.25 V
−
−
−
−
−
−
−
−
2.0
−
60
−
−
100
100
150
10
150
150
200
250
300
200
300
− − 2.0 A
mA
ns
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