Single Impulse

Thesingleimpulsegraphistheresultof50impulsesofrectangularshapeappliedatoneminuteintervals.Thelimitofacceptancewasashiftin

resistanceoflessthan1%fromtheinitialvalue.

ContinuousLoadDuetoRepetitivePulses

Thecontinuousloadgraphwasobtainedbyapplyingrepetitiverectangularpulseswherethepulseperiodwasadjustedsothattheaverage

powerdissipatedintheresistorwasequaltoitsratedpowerat70°C.Againthelimitofacceptancewasashiftinresistanceoflessthan1%fromthe

initialvalue

PWC Series Issue January 2009

Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com

Pulse Voltage

10

100

1000

10000

0.0001

0.0010.010.1

1

Pulse Duration (seconds)

0805

1206

2010

2512

Continuous Pulses

0.1

1

10

100

0.0001

0.0010.010.1

1

Pulse Duration (seconds)

0805

1206

2010

2512

Single Pulse

1

10

100

1000

0.0001

0.0010.010.1

1

Pulse duration (seconds)

0805

1206

2010

2512

Single impulse:

The single impulse graph is

the result of 50 impulses of

rectangular shape applied at

one minute intervals. The

limit of acceptance was a

shift in resistance of less

than 1% from the initial

value. The power applied

was subject to the

restrictions of the maximum

permissible impulse voltage

graph shown.

Continuous load due to

repetitive pulses:

The continuous load graph

was obtained by applying

repetitive rectangular pulses

where the pulse period was

adjusted so that the

average power dissipated

in the resistor was equal

to its rated power at 70°C.

Again the limit of acceptance

was a shift in resistance of

less than 1% from the initial

value.

Pulse Withstanding

Chip Resistors

Pulse Performance Data

PWC Series Issue January 2009

Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com

Pulse Voltage

10

100

1000

10000

0.0001

0.0010.010.1

1

Pulse Duration (seconds)

0805

1206

2010

2512

Continuous Pulses

0.1

1

10

100

0.0001

0.0010.010.1

1

Pulse Duration (seconds)

0805

1206

2010

2512

Single Pulse

1

10

100

1000

0.0001

0.0010.010.1

1

Pulse duration (seconds)

0805

1206

2010

2512

Single impulse:

The single impulse graph is

the result of 50 impulses of

rectangular shape applied at

one minute intervals. The

limit of acceptance was a

shift in resistance of less

than 1% from the initial

value. The power applied

was subject to the

restrictions of the maximum

permissible impulse voltage

graph shown.

Continuous load due to

repetitive pulses:

The continuous load graph

was obtained by applying

repetitive rectangular pulses

where the pulse period was

adjusted so that the

average power dissipated

in the resistor was equal

to its rated power at 70°C.

Again the limit of acceptance

was a shift in resistance of

less than 1% from the initial

value.

Pulse Withstanding

Chip Resistors

Pulse Performance Data

Pulse Withstanding

Chip Resistors

PWC Series

Make Possible

07.14

General Note

TT Electronics reserves the right to make changes in product specification without notice or liability.

All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.

© TT Electronics plc

www.ttelectronicsresistors.com