Thick Film Low Resistance
Kelvin Flip Chip
LRK Series
Welwyn Components
•
Precision low resistance applications
•
Flip chip with Kelvin design
•
Low temperature coefficient
•
Resistance to 0.003 ohms
•
Tolerance down to ±1.0%
•
2 watt power dissipation at 70°C
Electrical Data
LRK
Resistance range
Tolerance
Operating temperature range
TCR
Power dissipation (at 70°C)
Temperature rise at 2 watts
ohms
%
°C
ppm/°C
watts
°C
R003-R100
to ±1
-55 to +150
±100 (down to 0.010)
2.00
70
Physical Data
Dimensions (mm)
A
6.500±0.380
B
3.250±0.250
A
1
B
3
S
2
S
1.778
C
0.740±0.100
E
D
0.508±0.127
E
0.787±0.178
BOTTOM
4
D
SIDE
C
Recommended Solder Pad Layout
Dimensions (mm)
A
2.54
B
2.413
A
C
D
B
C
1.778
D
1.27
Schematic Layout
1
2
R
3
4
The LRK low range flip chip resistor series offers very low
resistance four terminal (Kelvin) layout for applications
requiring low cost and precision current measurement. The LRK
flip chip utilises patented, non-noble copper based inks which
demonstrate high performance, precision and reliability.
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
© 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
31
WELWYN [ WELWYN COMPONENTS LIMITED ]
