Fusible Chip
Fusible Chip
Fusible Chip
Resistors
Resistors
Resistors
FCR Series
FCR
Fuses safely under defined overload conditions
Series
Combines
FCR Series
inrush limit and board-level
conditions
Fuses safely under defined overload
protection
Standard chip formats for
Combines inrush limit and
fast placement
board-level protection
Fuses safely under defined overload conditions
RoHS compliant matt tin finish
·
·
·
·
Standard chip formats for fast placement
Combines inrush limit and board-level protection
Standard chip matt tin finish
RoHS compliant formats for fast placement
RoHS compliant matt tin finish
Electrical Data
Electrical Data
Power rating @ 70ºC
Resistance range
Power rating @ 70ºC
Resistance range
Minimum power for <60s fusing time
0603
watts
0.063
0603
ohms 5R6 – 33R
watts
0.063
ohms 5R6 – 33R
watts
2
25 2
25
0805
1206
0.1
0.125
0805
1206
10 – 82R
0.1
0.125
10 – 82R
2.5
50
2.5
50
±500
±5
±500
-55 to +125
±5
E24
-55 to +125
E24
Maximum post-fuse standoff (dc or ac peak) volts
Minimum power for <60s fusing time
watts
TCR
ppm/ºC
Maximum post-fuse standoff (dc or ac peak) volts
Resistance tolerance
%
TCR
ppm/ºC
Ambient temperature range
ºC
Resistance tolerance
%
Standard values
Ambient temperature range
ºC
Standard values
1210
2010
0.25
0.5
1210
2010
10 – 300R
10 – 100R
0.25
0.5
10–27R: 3.75
10 – 300R
10 – 100R
4.5
30-300R: 3.0
10–27R: 3.75
100
4.5
30-300R: 3.0
100
Physical Data
Dimensions (mm) and weight (g)
Physical Data
0603
0805
0603
1206
0805
1210
1206
2010
1210
2010
L
1.6±0.15
L
2.0±0.2
1.6±0.15
3.2±0.15
2.0±0.2
3.2±0.15
3.2±0.15
5.0±0.15
3.2±0.15
5.0±0.15
W
0.8±0.2
W
Dimensions (mm) and weight (g)
1.25±0.2
0.8±0.2
1.6±0.15
1.25±0.2
C
0.25±0.2
C
2.6±0.15
1.6±0.15
2.5±0.2
2.6±0.15
2.5±0.2
0.5±0.2
0.5±0.2
0.6±0.25
0.5±0.2
0.4±0.2
0.25±0.2
0.5±0.2
0.4±0.2
A
0.25±0.2
A
0.5±0.2
0.5±0.2
0.6±0.25
0.5±0.2
0.4±0.2
0.25±0.2
0.5±0.2
0.4±0.2
T max
0.65
T max
0.65
0.65
0.70
0.65
0.70
0.70
0.71
0.70
0.71
adjustment of the resistive element optimises the fusing performancealumina substrate. The design and laser
Conductors, resistive element and protection are applied to a 96% of the resistor.
adjustment of the resistive element optimises the fusing performance of the resistor.
Construction
Conductors, resistive element and protection are applied to a 96% alumina substrate. The design and laser
Construction
Terminations
The chips are supplied with wrap-around terminations suitable for soldering.
Terminations
0.6±0.25
0.6±0.25
resistance properties andan electroplated nickel barrier and 100% matt tin finish. This ensures excellent ‘leach’
The terminations have solderability.
resistance properties and solderability.
Solderability
The terminations have an electroplated nickel barrier and 100% matt tin finish. This ensures excellent ‘leach’
Solderability
The chips are supplied with wrap-around terminations suitable for soldering.
individually marked with is digits. The first two digits are the significantsuitable and printed circuits. All resistors of
The body protection 3 resistant to all normal cleaning solvents figures for the third defines the number are
added zeros. marked with 3 digits. The first two digits are the significant figures and the third defines the number of
individually
added zeros.
Marking
The body protection is resistant to all normal cleaning solvents suitable for printed circuits. All resistors are
Marking
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
General Note
All
General Note
information is subject to Welwyn’s own data and is considered accurate at time of going to print.
TT electronics reserves the right to make changes in product specification without notice or liability.
© Welwyn Components Limited
Bedlington Northumberland NE22 7AA, UK
© TT electronics plc
A subsidiary of
TT electronics plc
A subsidiary of
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
TT electronics plc
Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info@welwyn-tt.com Website: www.welwyn-tt.com
05 . 08
Welwyn Components reserves the right to make changes in product specification without notice or liability.
©
All information is subject to TT
Limited
Bedlington
and is considered accurate
7AA, UK
going to print.
Welwyn Components
electronics’
data and considered accurate at
at
of going
All information is subject to Welwyn’s own
own data
is
Northumberland NE22
time
time of
to print.
Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info@welwyn-tt.com Website: www.welwyn-tt.com
05 . 08
10. 11
Fusible Chip
Resistors
Fusible Chip
Resistors
FCR Series
FCR Series
Performance Data
Load at rated power:
1000 hours cyclic load @ 70°C
Shelf life test:
12 months at room temperature
Derating from rated power at 70°C
Short term overload:
10 cycles of 6.25 x rated power for 5S
Climatic category
Long term damp heat
56 days 85°C 85%RH
Temperature rapid change
-55 to 125°C
Resistance
to solder heat
Post-fuse leakage:
50Vdc (25Vdc for 0603)
Voltage proof
Insulation resistance
@ 100Vdc
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
mA
volts
ohms
Maximum
Typical
1
0.1
0.2
0.1
Zero at 125°C
2.5
0.1
55/125/56
3
0.5
1
0.1
2.5
1
10
2
400
>100M
Fusing Performance
Fuse Time (s)
100
Typical Constant Voltage Fusing Characteristic
10
0603, 0805
& 1206
1210
& 2010
1
0
1
2
3
4
5
6
Initial Power (W)
7
8
9
Note
–
actual fusing characteristics depend on mounting conditions.
Reference
conditions
are FR4
substrate with
35 m (1oz) copper, pad and track width as follows: 0603
–
1.5mm, 0805
–
1.7mm, 1206
–
2mm, 1210
–
2.9mm,
2010
–
3mm.
FCR
Resistors
are supplied taped and reeled
on a 7” reel
as per IEC 286-3. The width of the reel is 15.4±1mm for
2010 size and 11.4±1.1mm for the smaller sizes.
Packaging
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
© Welwyn
is subject to TT electronics’ own data and
Northumberland NE22
time
UK
All information
Components Limited
Bedlington
is considered accurate at
7AA,
of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info@welwyn-tt.com Website: www.welwyn-tt.com
05 . 08
© TT electronics plc
10. 11
Fusible Chip Resistors
FCR Series
FCR Series
Fusible Chip
Resistors
Ordering Procedure
Example: FCR1210 at 22 ohms and 5% tolerance on a reel of 5000 pieces -
FCR1210
–
22RJ
I
Type
Size
Value (use IEC62 code)
Tolerance (use IEC62 code)
J
5%
Packing
I
Tape
0603, 0805, 1206, 1210
2010
5000/reel
4000/reel
Standard
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.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© 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
05 . 08
© TT electronics plc
10. 11
