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Safe operating area, Derating curve, Transient thermal impedance – Diodes FMMT493 User Manual

Page 3: Pulse power dissipation

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FMMT493

Document number: DS33093 Rev. 4 - 2

3 of 7

www.diodes.com

April 2013

© Diodes Incorporated

FMMT493

A Product Line of

Diodes Incorporated



Thermal Characteristics and Derating Information

1

10

100

1m

10m

100m

1

15 x 15mm FR4
1oz Copper

V

CE(sat)

Limit

100µs

1ms

10ms

100ms

1s

DC

Safe Operating Area

-I

C

Col

le

ct

or

Cu

rre

n

t (A

)

-V

CE

Collector-Emitter Voltage (V)

0

20

40

60

80 100 120 140 160

0.0

0.1

0.2

0.3

0.4

0.5

0.6

15 x 15mm FR4 1oz Copper

Derating Curve

Temperature (°C)

M

a

x

P

o

we

r Di

ssi

pa

tion

(W

)

100µ

1m

10m 100m

1

10

100

1k

0

40

80

120

160

200

240

15 x 15mm FR4 1oz Copper

Transient Thermal Impedance

D=0.5

D=0.2

D=0.1

Single Pulse

D=0.05

T

herm

al

Re

si

st

an

ce

C/

W

)

Pulse Width (s)

100µ

1m

10m 100m

1

10

100

1k

0.1

1

10

100

15 x 15mm FR4 1oz Copper

Pulse Power Dissipation

Pulse Width (s)

M

a

x P

o

we

r Di

ssi

pa

tion

(W

)