DSF2054SF45 View Datasheet(PDF) -

DSF20545SF

CURRENT RATINGS

Symbol

Parameter

Double Side Cooled

I

F(AV)

Mean forward current

IF(RMS)

RMS value

IF

Continuous (direct) forward current

Single Side Cooled (Anode side)

IF(AV)

IF(RMS)

I

F

Mean forward current

RMS value

Continuous (direct) forward current

SURGE RATINGS

Symbol

Parameter

I

Surge (non-repetitive) forward current

FSM

I2t

I2t for fusing

I

Surge (non-repetitive) forward current

FSM

I2t

I2t for fusing

IFSM

Surge (non-repetitive) forward current

I2t

I2t for fusing

Conditions

Half wave resistive load, T = 65oC

case

Tcase = 65oC

Tcase = 65oC

Half wave resistive load, Tcase = 65oC

Tcase = 65oC

Tcase = 65oC

Conditions

10ms half sine; with 0% V T = 150oC

RRM, j

10ms half sine; with 50% VRRM, Tj = 150oC

10ms half sine; with 100% V T = 150oC

RRM, j

DEFINITION OF K FACTOR AND QRA1

dIR/dt

t1

0.5x IRR

IRR

QRA1 = 0.5x IRR(t1 + t2)

t2 k = t1/t2

τ

Max. Units

1256

A

1971

A

1765

A

995

A

1552

A

1335

A

Max. Units

16

kA

1280 x 103 A2s

12.8

kA

819.2 X 103 A2s

-

kA

-

A2s

2/7

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