DYNEX MF70-1200, MF70-1400, MF70-1600 Datasheet

MF70

Fast Recovery Diode

Advance Information

Replaces March 1998 version, DS4195-2.1 DS1955-3.0 January 2000

APPLICATIONS

■ Inverse Parallel Or Series Connected Diode

■ Power Supplies

■ High Frequency Applications

FEATURES

■ Glass Passivation

■ Fast Recovery Characteristics

■ High Voltage Capabilities

VOLTAGE RATINGS

Type Number Repetitive Peak

Reverse Voltage

V

RRM

V

MF70-1600 MF70-1400 MF70-1200

1600 1400 1200

Conditions

V

= V

RSM

RRM

+ 100V

KEY PARAMETERS

V I

F(AV)

I

FSM

Q t

rr

RRM

r

1600V

70A

700A 26µC

915ns

Lower voltage grades available. For stud anode add suffix 'R' to type number.

See Package Details for further information.

Outline type code: DO5.

CURRENT RATINGS

Symbol Parameter Conditions UnitsMax.

I

F(AV)

I

F(RMS)

I

Mean forward current

RMS value

F

Continuous (direct) forward current

Half wave resistive load, T

= 75oC 110 A

T

case

T

= 75oC90A

case

= 75oC70A

case

1/8

MF70

SURGE RATINGS

ParameterSymbol

FSM

Surge (non-repetitive) forward currentI

THERMAL AND MECHANICAL DATA

Symbol

th(j-c)

th(c-h)

T

stg

Thermal resistance - junction to caseR

Thermal resistance - case to heatsinkR

Virtual junction temperature

vj

- Mounting torque

Parameter

Conditions

10ms half sine; with 100% V

10ms half sine;

= 125oC

Tj

Conditions Max. Units

dc

RRM, Tj

= 125oC

Max. Units

700 A

2450 A

Min.

- 0.37oC/W

Mounting torque 3.5Nm with mounting compound

Forward (conducting) - 125 Reverse (blocking)

- 125

125-55Storage temperature rangeT

Use torque wrench

3.83.2

o

C/W- 0.2

Nm

o

˚C

2

sI2t for fusingI2t

C C

CHARACTERISTICS

Symbol Typ. Units

V

FM

I

RM

t

rr

Q

t

rr

V

TO

r

T

V

FRM

Forward voltage

Peak reverse current Reverse recovery time

Recovered charge

r

Reverse recovery time

Threshold voltage

Slope resistance

Forward recovery voltage di/dt = 1000A/µs, Tj = 125oC80-V

Parameter

Conditions Max.

At 210A peak, T At V

, T

RRM

case

IF = 1A, diRR/dt = 25A/µs T

= 25oC, VR = 100V

case

I

= 100A, diRR/dt = 100A/µs

F

T

= 25oC, VR = 100V

case

= 25oC - 2.0 V

case

= 100oC-mA

10

- 300

-26µC

- 915 ns

At Tvj = 125oC - 1.3 V

At Tvj = 125oC - 3.34 mΩ

ns

2/8

CURVES

500

Measured under pulse

conditions

400

80

T

case

MF70

= 25˚C

60

95%

300

40

5%

200

20

Instantaneous forward current - (A)

100

Tj = 125˚C

Tj = 25˚C

0

Transient forward voltage - (V)

0

0 400 800 1200

200 600 1000

Rate of rise of forward current - (A/µs)

0 1.0 2.0 3.0

Instantaneous forward voltage - (V)

Fig.1 Maximum (limit) forward characteristics Fig.2 Forward recovery voltage vs rate of rise of

forward voltage

0.5

0.4

0.3

0.2

0.1

Thermal impedance - ˚C/W

0

0.001 0.01 0.1

Fig.3 Maximum transient thermal impedance - junction to case

Time - (s)

1.0

d.c.

10

3/8