A subsidiary of

TT electronics plc

Issue D . 11.06

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

General Purpose

Carbon Film Resistors

Drop in replacement for CF/CR

Low cost

Extensive resistance range

Wide range of sizes and power ratings

RoHS compliant

Limiting element voltage

volts

Resistance range

ohms

Power rating @70°C

watts

Max overload voltage

volts

TCR

ppm/°C

Dielectric withstanding voltage

volts

0.125

0.25

0.25

0.5

0.5

1

1

2

2

3

1R0-1M0 1R0-10M 1R0-1M0 1R0-10M 1R0-10M 1R0-10M 1R0-10M 1R0-10M 1R0-10M 1R0-10M

200

250

200

350

250

500

400

500

500

500

400

500

400

700

500

1000

700

1000

800

1000

300

500

300

700

500

1000

700

1000

700

1000

<10R

:

0±350

<10R ~ <60K

:

0 ~ -500

<60K ~ <200K

:

0 ~ -700

<200K ~ <1M0

:

0 ~ -1000

<1M0K ~ 10M

:

0 ~ -1500

± 5

E24

-55 to +155

Resistance tolerance

%

Ambient temperature range

°C

Standard values

Note: 'S' denotes smaller body size - see physical data

GCF¼ GCF¼S GCF½ GCF½S

GCF1

GCF1S

GCF2

GCF2S

GCF3S

Electrical Data

d ± 0.10

0.5

0.55

0.5

0.6

0.55

0.8

0.63

0.8

0.8

0.8

f min

25

25

25

25

25

25

25

25

25

25

D max

1.85

2.5

1.85

3.5

3

5.5

5

6.5

5.5

6.5

L max

3.5

6.8

3.5

10

6.8

16

12

17.5

16

17.5

d

f

L

D

min. Bend

Radius

Wt. nom.

PCB mounting

centres

7.6

10.2

7.6

15.2

10.2

20.3

17.8

22.9

20.3

22.9

0.5

0.55

0.5

0.6

0.55

1.2

0.6

1.2

1.2

1.2

0.1

0.3

0.1

0.55

0.35

1.0

0.65

1.2

1.0

1.2

GCF1/8

GCF¼

GCF¼S

GCF½

GCF½S

GCF1

GCF1S

GCF2

GCF2S

GCF3S

Physical Data

GCF Series