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Document Number: 28729

8

Revision: 24-Feb-04

PR01/02/03

Vishay BCcomponents

Power Metal Film Resistors

Interruption Characteristics

10

1

100

120

20

080

40

60

Poverload (W)

t

(s)

PR02 Time to interruption as a function of overload

This graph is based on measured data under constant voltage

conditions; the data may deviate according to the applications.

10

1

100

120

20

080

40

60

Poverload(W)

t

(s)

PR02 Time to interruption as a function of overload

This graph is based on measured data under constant voltage

conditions; the data may deviate according to the applications.

Interruption Characteristics

10

1

250

50

0

200

100

150

P overload (W)

t

(s)

PR03 Time to interruption as a function of overload power

This graph is based on measured data under constant voltage

conditions; the data may deviate according to the applications.

200

0

0.4

1.2

0

0.8

40

80

120

160

∆ T

(K)

P (W)

PR01 Hot-spot temperature rise (∆T) as a

function of dissipated power.

Ø0.6 mm Cu-leads.

Application Information

100

0

0.4

1.2

0

0.8

20

40

60

80

∆ T

(K)

P (W)

15 mm

20 mm

25 mm

PR01 Temperature rise (∆T) at the lead end (soldering point) as a

function of dissipated power at various lead lengths after mounting.

Ø0.6 mm Cu-leads.

Minimum distance from resistor body to PCB = 1 mm.

200

0

0.4

1.2

0

0.8

40

80

120

160

∆T

(K)

P (W)

PR01 Hot-spot temperature rise (∆T) as a function

of dissipated power.

Ø0.6 mm FeCu-leads.