High Power
Chip Resistors
SC3 Series
Welwyn Components
•
•
•
3 Watts in a 1 Watt size package*
Resistance range from 1 to 200
Tolerances to ±1%
* Rated Power @ 70˚C
Electrical Data
Characteristic
Power dissipation @70˚ C
Resistance Range
LEV
Ambient temp range
Resistance tolerance
TCR
Termination
Pad & trace area for maximum
power rating
Value
3 Watts
1.0 to 200
50V
-55 to +150˚C
1, 2, 5%
±100ppm/˚C
Leach-resistant solder-plated
copper wrap-around
300mm
2
Power Derating Curve
100
% Of Power Rating
80
60
40
20
0
25˚
70˚
Temperature in
˚C
150˚
Physical Data
Top
0.51
±
0.13mm
Bottom
(Board Side)
0.61
±
0.13mm
Recommended
Solder Pad Layout
Plating
wrap-around
6.35
±
0.13mm
2.29
±
0.13mm
7.6mm
2mm
1mm
0.762
±
0.127mm
thickness
3.18
±
0.13mm
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.
A subsidiary of
TT electronics plc
Issue
B
03.02
Issue
A
· 01.07
© 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
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WELWYN [ WELWYN COMPONENTS LIMITED ]
