Semiconductor Components Industries, LLC, 2000
October, 2000 – Rev. 3 1Publication Order Number:
MR850/D
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.
Mechanical Characteristics
•Case: Epoxy, Molded
•Weight: 1.1 gram (approximately)
•Finish: All External Surfaces Corrosion Resistant and Terminal
Leads are Readily Solderable
•Lead and Mounting Surface Temperature for Soldering Purposes:
220°C Max. for 10 Seconds, 1/16″ from case
•Shipped in plastic bags, 500 per box
•Available Tape and Reeled, 1200 per reel, by adding a “RL” suffix to
the part number
•Polarity: Cathode Indicated by Polarity Band
•Marking: MR850, MR851, MR852, MR854, MR856
MAXIMUM RATINGS
Please See the Table on the Following Page
FAST RECOVERY
POWER RECTIFIERS
3.0 AMPERES
50–600 VOLTS
http://onsemi.com
Device Package Shipping
ORDERING INFORMATION
MR850 Axial Lead 500 Units/Box
MR850RL Axial Lead 1200/Tape & Reel
AXIAL LEAD
CASE 267–05
STYLE 1
Preferred devices are recommended choices for future use
and best overall value.
MR851 Axial Lead 500 Units/Box
MR851RL Axial Lead 1200/Tape & Reel
MR852 Axial Lead 500 Units/Box
MR852RL Axial Lead 1200/Tape & Reel
MR854 Axial Lead 500 Units/Box
MR854RL Axial Lead 1200/Tape & Reel
MR856 Axial Lead 500 Units/Box
MR856RL Axial Lead 1200/Tape & Reel
AL = Assembly Location
MR85x = Device Number
x = 0, 1, 2, 4 or 6
YY = Year
WW = Work Week
MARKING DIAGRAM
AL
MR
85x
YYWW
MR850, MR851, MR852, MR854, MR856
http://onsemi.com
2
MAXIMUM RATINGS
Rating Symbol MR850 MR851 MR852 MR854 MR856 Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR
50 100 200 400 600 Volts
Non–Repetitive Peak Reverse Voltage VRSM 75 150 250 450 650 Volts
RMS Reverse Voltage VR(RMS) 35 70 140 280 420 Volts
Average Rectified Forward Current
(Single phase resistive load, TA = 80°C) IO3.0 Amp
Non–Repetitive Peak Surge Current
(surge applied at rated load conditions) IFSM 100
(one cycle) Amp
Operating and Storage Junction
Temperature Range TJ,
Tstg – 65 to +125
– 65 to +150 °C
THERMAL CHARACTERISTICS
Characteristic Symbol Max Unit
Thermal Resistance, Junction to Ambient
(Recommended Printed Circuit Board Mounting) RθJA 28 °C/W
ELECTRICAL CHARACTERISTICS
Characteristic Symbol Min Typ Max Unit
Forward Voltage
(IF = 3.0 Amp, TJ = 25°C) VF– 1.04 1.25 Volts
Reverse Current (rated dc voltage) TJ = 25°C
MR850
MR851
MR852
MR854
MR856
TJ = 80°C
IR–
–
–
–
–
–
2.0
–
60
–
–
100
10
150
150
200
250
300
µA
REVERSE RECOVERY CHARACTERISTICS
Characteristic Symbol Min Typ Max Unit
Reverse Recovery Time
(IF = 1.0 Amp to VR = 30 Vdc)
(IF = 15 Amp, di/dt = 10 A/µs)
trr –
–100
150 200
300
ns
Reverse Recovery Current
(IF = 1.0 Amp to VR = 30 Vdc) IRM(REC) – – 2.0 Amp
MR850, MR851, MR852, MR854, MR856
http://onsemi.com
3
PACKAGE DIMENSIONS
AXIAL LEAD
CASE 267–05
ISSUE G
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
STYLE 1:
PIN 1. CATHODE (POLARITY BAND)
2. ANODE
12
KA
K
D
B
DIM MIN MAX MIN MAX
MILLIMETERSINCHES
A0.287 0.374 7.30 9.50
B0.189 0.209 4.80 5.30
D0.047 0.051 1.20 1.30
K1.000 --- 25.40 ---
MR850, MR851, MR852, MR854, MR856
http://onsemi.com
4
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without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular
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including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or
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MR850/D
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