Document Number: 73338

S-80579-Rev. E, 17-Mar-08

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5

Vishay Siliconix

Si1499DH

TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted

junction-to-case thermal resistance, and is more useful in settling the

upper dissipation limit for cases where additional heatsinking is

used. It is used to determine the current rating, when this rating falls

below the package limit.

Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon

Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and

Current Derating*

0

1

2

3

4

5

6

0

25

50

75

100

125

150

175

Package Limited

Normalized Thermal Transient Impedance, Junction-to-Ambient

10

10

1

10

600

-2

-3

-4

10

100

2

1

0.1

0.01

0.2

0.1

0.05

0.02

Single Pulse

Duty Cycle = 0.5

Square Wave Pulse Duration (s)

1. Duty Cycle, D =

Notes:

4. Surface Mounted

Normalized Thermal Transient Impedance, Junction-to-Foot

110

2

1

0.1

0.01

0.2

0.1

0.05

0.02

Duty Cycle = 0.5

Square Wave Pulse Duration (s)

Single Pulse

0.05

0.02