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MAS110S06

Fast Turn-off Asymmetric Thyristor/Diode Module

Dynex Semiconductor 

MAS110S

THERMAL AND MECHANICAL DATA

Symbol

Parameter

Rth(j-c)

Thermal resistance - junction to case

(Thyristor or diode)

R

th(c-h)

Thermal resistance - case to heatsink

(Thyristor or diode)

Tvj

Virtual junction temperature

Top

Operating temperature range

T

Storage temperature range

stg

Visol

Isolation voltage

-

Mounting torque

Conditions

dc

Mounting force 6Nm

with mounting compound.

-

-

Commoned terminals to base plate.

AC RMS, 1 min, 50Hz.

ORDERING INFORMATION

The module type number is made up as follows:

Examples:

MAS XXX S XX W

Turn-off time code

MAS 110 S 12 W

MAS 110 S 08 X

Voltage grade. VDRM/100

Single thyristor/diode configuration

Nominal IF(AV) at Tcase = 75˚C

Pressure contact asymmetric thyristor/diode module

Min. Max. Units

-

0.21 oC/W

-

0.07 oC/W

-

125

oC

-40

125

oC

-40 125

oC

-

2.5

kV

-

6.0 Nm

MODULE MOUNTING RECOMMENDATIONS

s Adequate heatsinking is required to maintain the base

temperature at 75oC if full rated current is to be achieved. Power

dissipation may be calculated by use of VT(TO) and rT information

and loss curves in accordance with standard formulae. We can

provide assistance with calculations or choice of heatsink if required.

s The heatsink surface must be smooth and flat; a surface finish

of N6 (32µin) and a flatness within 0.05mm (0.002") are

recommended.

s Immediately prior to mounting, the heatsink surface should be

lightly scrubbed with fine emery, Scotch Brite™ or a mild chemical

etchant and then cleaned with a solvent to remove oxide build up

and foreign material. Care should be taken to ensure no foreign

particles remain.

s An even coating of thermal compound (eg. Unial) should be

applied to both the heatsink and module mounting surfaces. This

should ideally be 0.05mm (0.002") per surface to ensure optimum

thermal performance.

s After application of thermal compound, place the module squarely

over the mounting holes, (or 'T' slots) in the heatsink. Using a

torque wrench, slowly tighten the recommended fixing bolts at

each end, rotating each in turn no more than 1/4 of a revolution at

a time. Continue until the required torque of 6Nm (55lb.ins) is

reached at both ends.

s It is not acceptable to fully tighten one fixing bolt before starting

to tighten the others. Such action may DAMAGE the module.

4/9

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