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SEMICONDUCTOR TECHNICAL DATA by MR850/D

 
   
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 MR852 and MR856 are
• Weight: 1.1 gram (approximately) Motorola Preferred Devices

• 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 FAST RECOVERY
• Shipped in plastic bags, 5,000 per bag. POWER RECTIFIERS
• Available Tape and Reeled, 1500 per reel, by adding a “RL” suffix to the 50–600 VOLTS
part number 3.0 AMPERES
• Polarity: Cathode Indicated by Polarity Band
• Marking: R850, R851, R852, R854, R856

CASE 267–03

MAXIMUM RATINGS
Rating Symbol MR850 MR851 MR852 MR854 MR856 Unit
Peak Repetitive Reverse Voltage VRRM 50 100 200 400 600 Volts
Working Peak Reverse Voltage VRWM
DC Blocking Voltage VR
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 IO 3.0 Amp
(Single phase resistive load, TA = 80°C)
Non–Repetitive Peak Surge Current IFSM 100 Amp
(surge applied at rated load conditions) (one cycle)
Operating and Storage Junction TJ, – 65 to +125 °C
Temperature Range Tstg – 65 to +150

THERMAL CHARACTERISTICS
Characteristic Symbol Max Unit
Thermal Resistance, Junction to Ambient RθJA 28 °C/W
(Recommended Printed Circuit Board Mounting, See Note 4, Page 5)

Preferred devices are Motorola recommended choices for future use and best overall value.

Rev 2

Rectifier Device
Motorola, Inc. 1996 Data 1






ELECTRICAL CHARACTERISTICS
Characteristic Symbol Min Typ Max Unit
Forward Voltage VF — 1.04 1.25 Volts
(IF = 3.0 Amp, TJ = 25°C)
Reverse Current (rated dc voltage) TJ = 25°C IR — 2.0 10 µA
MR850 — — 150
MR851 — 60 150
TJ = 80°C MR852 — — 200
MR854 — — 250
MR856 — 100 300

REVERSE RECOVERY CHARACTERISTICS

Characteristic Symbol Min Typ Max Unit
Reverse Recovery Time trr ns
(IF = 1.0 Amp to VR = 30 Vdc, Figure 9) — 100 200
(IF = 15 Amp, di/dt = 10 A/µs, Figure 10) — 150 300
Reverse Recovery Current IRM(REC) — — 2.0 Amp
(IF = 1.0 Amp to VR = 30 Vdc, Figure 9)

PACKAGE DIMENSIONS

NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
D
INCHES MILLIMETERS
DIM MIN MAX MIN MAX
1
A 0.370 0.380 9.40 9.65
B 0.190 0.210 4.83 5.33
K D 0.048 0.052 1.22 1.32
K 1.000 ––– 25.40 –––

STYLE 1:
PIN 1. CATHODE
2. ANODE
A

K
CASE 267–03
2 ISSUE C

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2 ◊ MR850/D
Rectifier Device Data