Pulse Withstanding

Chip Resistors

PWC Series

Excellent pulse withstand performance

Improved working voltage

Improved power rating

Custom designs available

Anti-sulphur version available

Pulse Withstanding

Chip Resistors

PWC Series

Excellent pulse withstand performance

Improved working voltage

Improved power rating

Standard chip sizes (0805 to 2512)

Custom designs available

General Note

Welwyn Components reserves the right to make changes in product specification without notice or liability.

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

© Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK

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

Electrical Data

07. 08

A subsidiary of

TT electronics plc

37

Physical Data

Construction

Thick film resistor material, overglaze and organic protection

are screen printed on a 96% alumina substrate. Wrap-around

terminations have an electroplated nickel barrier and solder

coating, this ensures excellent ‘leach’ resistance properties

and solderability.

Marking

Components are not marked. Reels are marked with type,

value, tolerance, date code and quantity.

Solvent Resistance

The body protection is resistant to all normal industrial

cleaning solvents suitable for printed circuits.

Dimensions (mm) & weight (mg)

PWC0805

PWC0603

Size

Power @70°C

W

Resistance range

ohms

Tolerance

%

LEV

V

TCR

ppm/°C

Operating temperature

°C

Thermal Impedance

°C/W

Pad / trace area *

Values

0.25

150

200

400

500

1R0 to 10M

10R to 1M: 0.5, All values: 1, 5

<10R:200

≥10R:100

E24 or E96 preferred - other values to special order

See graphs – full application note available on request

-55 to +155

0.33

0.5

0.75

1.5

2

1

220

160

145

80

55

40

70

40

0.125

75

302

30

50

125

60

100

500

250

mm2

PWC1206

PWC2010

PWC2512

1206

0805

1.6±0.1

0.8±0.1

0.3±0.15

0.3±0.15

2.2

0.55

0.6

0603

2010

2512

Pulse Capability

L

W

A

C

Wt.

T max

B min

T

W

C

A

A

L

B

Wrap-around terminations

(3 faces)

*Recommended minimum pad & adjacent trace area for each termination for rated power dissipation on FR4 PCB

Welwyn Components

Note that anti-sulphur version parts below 100R are

produced in flip-chip format with the resistor element on

the underside.

2.0±0.15

1.25±0.15

0.6

0.3±0.15

0.9

0.3±0.1

4.7

3.2±0.2

1.6±0.2

0.7

0.4±0.2

1.7

0.4±0.15

8.5

5.1±0.3

2.5±0.2

0.8

0.6±0.3

3.0

0.6±0.25

36

6.5±0.3

3.2±0.2

0.8

0.6±0.3

4.4

0.6±0.25

55

Resistors

09.18

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.ttelectronics.com/resistors

BI Technologies IRC Welwyn

All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)

All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)