Pulse Withstanding

Chip Resistors

PWC Series

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

Issue G · 03.06

Performance Data

Size

Maximum

Typical

∆R%

1

0.25

∆R%

0.1

0.02

Derating from rated power at 70°C

Zero at 155°C

∆R%

1

0.1

∆R%

1

0.2

Long term damp heat

∆R%

1

0.25

Temperature rapid change

∆R%

0.25

0.05

Resistance to solder heat

∆R%

0.25

0.05

Voltage proof

Volts

500

Pulse Performance Data

1.2/50

µs Lightning Surge

10

100

1000

10000

1

10

100

1000

10000

100000

1000000

10000000

Value (ohms)

0805

1206

2010

2512

10/700

µs Lightning Surge

10

100

1000

10000

1

10

100

1000

10000

100000

1000000

10000000

Value (ohms)

0805

1206

2010

2512

Lightning Surge

Resistors are tested in accordance with

IEC 60 115-1 using both 1.2/50µs and

10/700µs pulse shapes. The limit of

acceptance is a shift in resistance of less

than 1% from the initial value.

Note: A 0.01 Ohm addition to be added to the performance of all resistors <10 Ohms.

Welwyn Components

Welwyn Components