Fusible Chip Resistors

FCR Series

Fusessafelyunderdefinedoverloadconditions

Combinesinrushlimitandboard-levelprotection

Standardchipformatsforfastplacement

RoHScompliantmatttinfinish

A subsidiary of

TT electronics plc

05 . 08

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

Fusible Chip

Resistors

Fuses safely under defined overload conditions

Combines inrush limit and board-level protection

Standard chip formats for fast placement

RoHS compliant matt tin finish

FCR Series

Electrical Data

0603

0805

1206

1210

2010

Power rating @ 70ºC

watts

0.063

0.1

0.125

0.25

0.5

Resistance range

ohms

5R6 – 33R

10 – 82R

10 – 300R

10 – 100R

Minimum power for <60s fusing time

watts

2

2.5

10–27R: 3.75

30-300R: 3.0

4.5

Maximum post-fuse standoff (dc or ac peak) volts

25

50

100

TCR

ppm/ºC

±500

Resistance tolerance

%

±5

Ambient temperature range

ºC

-55 to +125

Standard values

E24

Physical Data

Dimensions (mm) and weight (g)

L

W

C

A

T max

0603

1.6±0.15

0.8±0.2

0.25±0.2

0.25±0.2

0.65

0805

2.0±0.2

1.25±0.2

0.4±0.2

0.4±0.2

0.65

1206

3.2±0.15

1.6±0.15

0.5±0.2

0.5±0.2

0.70

1210

3.2±0.15

2.6±0.15

0.5±0.2

0.5±0.2

0.70

2010

5.0±0.15

2.5±0.2

0.6±0.25

0.6±0.25

0.71

Construction

Conductors, resistive element and protection are applied to a 96% alumina substrate. The design and laser

adjustment of the resistive element optimises the fusing performance of the resistor.

Terminations

The chips are supplied with wrap-around terminations suitable for soldering.

Solderability

The terminations have an electroplated nickel barrier and 100% matt tin finish. Thisensuresexcellent ‘leach’

resistance properties and solderability.

Marking

The body protection is resistant to all normal cleaning solvents suitable for printed circuits. All resistors are

individually marked with 3 digits. The first two digits are the significant figures and the third defines the number of

added zeros.

A subsidiary of

TT electronics plc

05 . 08

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

Fusible Chip

Resistors

Fuses safely under defined overload conditions

Combines inrush limit and board-level protection

Standard chip formats for fast placement

RoHS compliant matt tin finish

FCR Series

Electrical Data

0603

0805

1206

1210

2010

Power rating @ 70ºC

watts

0.063

0.1

0.125

0.25

0.5

Resistance range

ohms

5R6 – 33R

10 – 82R

10 – 300R

10 – 100R

Minimum power for <60s fusing time

watts

2

2.5

10–27R: 3.75

30-300R: 3.0

4.5

Maximum post-fuse standoff (dc or ac peak) volts

25

50

100

TCR

ppm/ºC

±500

Resistance tolerance

%

±5

Ambient temperature range

ºC

-55 to +125

Standard values

E24

Physical Data

Dimensions (mm) and weight (g)

L

W

C

A

T max

0603

1.6±0.15

0.8±0.2

0.25±0.2

0.25±0.2

0.65

0805

2.0±0.2

1.25±0.2

0.4±0.2

0.4±0.2

0.65

1206

3.2±0.15

1.6±0.15

0.5±0.2

0.5±0.2

0.70

1210

3.2±0.15

2.6±0.15

0.5±0.2

0.5±0.2

0.70

2010

5.0±0.15

2.5±0.2

0.6±0.25

0.6±0.25

0.71

Construction

Conductors, resistive element and protection are applied to a 96% alumina substrate. The design and laser

adjustment of the resistive element optimises the fusing performance of the resistor.

Terminations

The chips are supplied with wrap-around terminations suitable for soldering.

Solderability

The terminations have an electroplated nickel barrier and 100% matt tin finish. Thisensuresexcellent ‘leach’

resistance properties and solderability.

Marking

The body protection is resistant to all normal cleaning solvents suitable for printed circuits. All resistors are

individually marked with 3 digits. The first two digits are the significant figures and the third defines the number of

added zeros.

Resistors

AllpartsarePb-freeandcomplywithEUDirective2011/65/EU(RoHS2)

04.17

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

http://www.ttelectronics.com/resistors

BI Technologies IRC Welwyn