Motorola MR758, MR760, MR756, MR752, MR751 Datasheet

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

Order this document by MR750/D

Designer's Data Sheet

High Current Lead Mounted

Rectifiers

•Current Capacity Comparable to Chassis Mounted Rectifiers

•Very High Surge Capacity

•Insulated Case

Mechanical Characteristics:

•Case: Epoxy, Molded

•Weight: 2.5 grams (approximately)

•Finish: All External Surfaces Corrosion Resistant and Terminal Lead is Readily Solderable

•Lead Temperature for Soldering Purposes: 260°C Max. for 10 Seconds

•Polarity: Cathode Polarity Band

•Shipped 1000 units per plastic bag. Available Tape and Reeled, 800 units per reel by adding a ªRL'' suffix to the part number

•Marking: R750, R751, R752, R754, R758, R760

MAXIMUM RATINGS

MR750

MR751

MR752

MR754

MR756

MR758

MR760

MR754 and MR760 are Motorola Preferred Devices

HIGH CURRENT

LEAD MOUNTED SILICON RECTIFIERS 50±1000 VOLTS DIFFUSED JUNCTION

CASE 194±04

Characteristic

Symbol

MR750

MR751

MR752

MR754

MR756

MR758

MR760

Unit

Peak Repetitive Reverse Voltage

VRRM

50

100

200

400

600

800

1000

Volts

Working Peak Reverse Voltage

VRWM

DC Blocking Voltage

VR

Non±Repetitive Peak Reverse Voltage

VRSM

60

120

240

480

720

960

1200

Volts

(Halfwave, single phase, 60 Hz peak)

RMS Reverse Voltage

VR(RMS)

35

70

140

280

420

560

700

Volts

Average Rectified Forward Current

IO

22 (TL = 60°C, 1/8″ Lead Lengths)

Amps

(Single phase, resistive load, 60 Hz)

6.0 (TA = 60°C, P.C. Board mounting)

See Figures 5 and 6

Non±Repetitive Peak Surge Current

IFSM

400 (for 1 cycle)

Amps

(Surge applied at rated load conditions)

Operating and Storage Junction

TJ, Tstg

65 to +175

°C

Temperature Range

ELECTRICAL CHARACTERISTICS

Characteristic and Conditions

Symbol

Max

Unit

Maximum Instantaneous Forward Voltage Drop

vF

1.25

Volts

(iF = 100 Amps, TJ = 25°C)

Maximum Forward Voltage Drop

VF

0.90

Volts

(IF = 6.0 Amps, TA = 25°C, 3/8″ leads)

Maximum Reverse Current

TJ = 25°C

IR

25

mA

(Rated dc Voltage)

TJ = 100°C

1.0

mA

Designer's Data for ªWorst Caseº Conditions Ð The Designer's Data Sheet permits the design of most circuits entirely from the information presented. SOA Limit curves Ð representing boundaries on device characteristics Ð are given to facilitate ªworst caseº design.

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

Rev 2

Rectifier Device Data

Motorola, Inc. 1996

MR750		MR751		MR752			MR754		MR756		MR758		MR760
	700										(AMP)	600					VRRM MAY BE APPLIED BETWEEN
	500		°
																	EACH CYCLE OF SURGE. THE TJ
		TJ = 25 C										400
											CURRENT						NOTED IS TJ PRIOR TO SURGE
	300							MAXIMUM				300
	200
																				25°C
											WAVE
			TYPICAL																°
												200
																	25°C		175 C
											, PEAK HALF					TJ = 175°C
(AMP)	100
	70											100
CURRENT	50										FSM	80
	30										I	60
FORWARD													1.0	2.0		5.0	10		20	50		100
	20															NUMBER OF CYCLES AT 60 Hz
, INSTANTANEOUS	10													Figure 2. Maximum Surge Capability
	7.0
	5.0											+0.5
F
i	3.0
												0
											°C)
	2.0
											(mV/	±0.5				TYPICAL RANGE
											COEFFICIENT
	1.0
	0.7											±1.0
	0.5
												±1.5
	0.3
	0.2											±2.0	0.2	0.5	1.0	2.0	5.0	10	20	50	100	200
	0.6	0.8	1.0	1.2	1.4	1.6	1.8	2.0	2.2	2.4	2.6
		vF, INSTANTANEOUS FORWARD VOLTAGE (VOLTS)												iF, INSTANTANEOUS FORWARD CURRENT (AMP)

Figure 1. Forward Voltage

Figure 3. Forward Voltage Temperature Coefficient

THERMAL RESISTANCE (°C/W)

R θJL(t) , JUNCTION±TO±LEAD TRANSIENT

20
10	L		L										1/2º
													3/8º
5.0													1/4º
3.0		HEAT SINK											1/8º
2.0								Both leads to heat sink, with lengths as shown. Variations in RqJL(t)
								below 2.0 seconds are independent of lead connections of 1/8 inch
								or greater, and vary only about ±20% from the values shown. Values
1.0								for times greater than 2.0 seconds may be obtained by drawing a
								curve, with the end point (at 70 seconds) taken from Figure 8, or
0.5								calculated from the notes, using the given curves as a guide. Either
								typical or maximum values may be used. For RqJL(t) values at pulse
0.3								widths less than 0.1 second, the above curve can be extrapolated
								down to 10 μs at a continuing slope.
0.2					1.0	2.0		5.0		10	20		50
0.1	0.2	0.3	0.5	0.7			3.0		7.0			30		70

t, TIME (SECONDS)

Figure 4. Typical Transient Thermal Resistance

2	Rectifier Device Data