DYNEX DCR1478SY User Manual

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DCR1478SY

Phase Control Thyristor

Advance Information

Replaces January 2000 version, DS4646-5. DS4646-6.0 July 2001

FEATURES

■ Double Side Cooling

■ High Surge Capability

■ High Mean Current

■ Fatigue Free

APPLICATIONS

■ High Power Drives

■ High Voltage Power Supplies

■ DC Motor Control

VOLTAGE RATINGS

Type Number Repetitive Peak

Voltages V

DRM VRRM

V

DCR1478SY48 DCR1478SY47 DCR1478SY46 DCR1478SY45 DCR1478SY44

Lower voltage grades available.

4800 4700 4600 4500 4400

Conditions

Tvj = 0˚ to 125˚C, I

= I

RRM

, V & V & V

RRM tp

= 250mA,

= 10ms,

=

RSM

+ 100V

RRM

DRM

V

DRM

V

DSM

V

DRM

respectively

ORDERING INFORMATION

When ordering, select the required part number shown in the Voltage Ratings selection table.

For example:

DCR1478SY48

Note: Please use the complete part number when ordering and quote this number in any future correspondance relating to your order.

KEY PARAMETERS V

DRM

I

T(AV)

I

TSM

dVdt 1000V/ dI/dt 300A/

4800V 2073A 27500A

µs

Outline type code: Y

See Package Details for further information.

(The DCR1478 is also available in a thin package, type code V.

Please contact Customer Services for more information).

Fig. 1 Package outline

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DCR1478SY

CURRENT RATINGS

T

= 60˚C unless stated otherwise.

case

Symbol Parameter Conditions

Double Side Cooled

I

T(AV)

I

T(RMS)

I

Mean on-state current

RMS value

T

Continuous (direct) on-state current

Half wave resistive load, T

= 80oC 3257 A

T

case

= 80oC 2954 A

T

case

Single Side Cooled (Anode side)

I

T(AV)

I

T(RMS)

I

T

Mean on-state current

RMS value

Continuous (direct) on-state current

Half wave resistive load, T

= 80oC 2105 A

T

case

T

= 80oC 1759 A

case

CURRENT RATINGS

T

= 80˚C unless stated otherwise.

case

Symbol Parameter Conditions

Double Side Cooled

= 80oC 2073 A

case

= 80oC 1340 A

case

UnitsMax.

I

T(AV)

I

T(RMS)

I

T

Mean on-state current

RMS value

Continuous (direct) on-state current

Single Side Cooled (Anode side)

I

T(AV)

I

T(RMS)

I

T

Mean on-state current

RMS value

Continuous (direct) on-state current

Half wave resistive load, T

T

= 80oC 2550 A

case

T

= 80oC 2270 A

case

Half wave resistive load, T

T

= 80oC 1650 A

case

T

= 80oC 1450 A

case

= 80oC 1625 A

case

= 80oC 1050 A

case

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SURGE RATINGS

DCR1478SY

Symbol

I

TSM

2

tI

I

TSM

I2t

Surge (non-repetitive) on-state current

2

t for fusing

Surge (non-repetitive) on-state current

2

I

t for fusing 3.78 x 106A2s

Parameter

THERMAL AND MECHANICAL DATA

Symbol

R

th(j-c)

R

th(c-h)

Thermal resistance - junction to case

Thermal resistance - case to heatsink

Parameter

Conditions

10ms half sine; T

VR = 50% V

10ms half sine; T

VR = 0

Conditions Min. Max. Units

Double side cooled

Single side cooled

Clamping force 43.0kN with mounting compound

case

- 1/4 sine

RRM

case

= 125oC

dc

Cathode dc Double side

Single side

Max. Units

22.0 kA

6

2.42 x 10

A2s

27.5 kA

- 0.0095oC/W

o

C/W- 0.019Anode dc

o

- 0.019

0.002

-

C/W

o

C/W

- 0.004oC/W

On-state (conducting) - 135

T

vj

T

stg

-

Virtual junction temperature

Storage temperature range

Clamping force

Reverse (blocking)

-

125

–55 125

38.0 47.0 kN

o

C

o

C

o

C

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