Power Rating @ 70°C

watts

0.25

0.5

Resistance range

ohms

10R - 300R

10R - 100R

TCR

ppm/°C

±500

±500

Resistance tolerance

%

±5

±5

Ambient temperature range

°C

-55 to 125

Values

E24 preferred

Max standoff voltage

100V

Fusing Surface

Mounted Resistors

FCR Series

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.

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

Electrical Data

Fusing Characteristics

Issue C · 04.03

A subsidiary of

TT electronics plc

Welwyn Components

Resistance

ohms

10R - 27R

30R - 300R

10R -100R

Fusing power

watts

3.75

3.00

4.50

Fusing time

1 to 60 seconds

Physical Data

22

Power Rating

For resistors operated in ambient temperatures above

70°C. Power rating must be derated in accordance with

the derating curve.

Packaging

Parts supplied Tape and Reel 5000 pieces per 7” reel as

per IEC 286-3.

100

80

60

40

20

0

(%)

- 55

0

70

125 (

°C)

Ambient temperature

T

W

A

A

L

Wrap-around terminations

(3 faces)

Dimensions (mm)

Type

L

W

A

T

3.20

2.60

0.50

0.55

±0.15

±0.15

±0.20

±0.15

5.00

2.50

0.60

+0.1529

±0.15

±0.15

±0.25

0.55 -0.05

FCR_C.qxd

28/4/03

9:52 am

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