Resistors
Low Value Current Sense
Thin Film Chip Resistors
LCS Series
Thin film technology
Low values down to R10 (100mΩ)
Precision to ±0.5% & ±50 ppm/°C
Accurate current sensing in electronic systems
Anti-sulfur construction
All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2)
Electrical Data
LCS0603
Power rating at 70°C
Resistance range
Limiting element voltage
TCR
Resistance tolerance
Standard values
Ambient temperature range
°C
watts
ohms
volts
ppm/°C
%
50
0.1
R20-1R0
100
0.5, 1, 5
E24 or E96 preferred
-55 to +155
LCS0805
0.125
LCS1206
0.25
LCS2010
0.5
R10-1R0
150
<R30: ±100 ≥R30: ±50
LCS2512
1.0
Physical Data
Dimensions in mm & weight in g
Type
LCS0603
LCS0805
LCS1206
LCS2010
LCS2512
L
1.60 ±0.2
2.00 ±0.2
3.05 ±0.15
4.9 ±0.2
6.3 ±0.2
W
0.80 ±0.2
1.25 ±0.2
1.55 ±0.15
2.4 ±0.2
3.1 ±0.2
0.65
T max
0.55
A
0.30 ±0.2
0.40 ±0.25
0.35 ±0.25
0.50 ±0.25
C
0.30 ±0.2
0.42 ±0.2
0.60 ±0.3
Wt. nom
0.006
0.009
0.020
0.036
0.055
A thin-film material is selectively deposited on a 96% alumina substrate together with metallic contacts at each end of the resistor. The unadjusted resistors
are heat treated to give the required TCR and stability, then a precisely controlled laser trim process adjusts the resistance value. Protection is applied and
wrap-around terminations are added and plated with nickel then tin. Each resistor is measured immediately before packing into tape.
Construction
Terminations
Marking
Standard is 100% Sn matte plated wrap-around terminations suitable for soldering. SnPb 60/40 plated terminations are also available.
0603 & 0805 sizes are unmarked. Larger sizes are marked with up to four characters, e.g. 1Ω is marked 1R0 and 680mΩ is marked R68.
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.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© TT Electronics plc
11.17
Low Value
Current Sense Thin Film Chip Resistors
Low Value
Current Sense Thin Film Chip Resistors
LCS Series
LCS Series
Performance Data
±R%
±R%
±ΔR%
±R%
±R%
±ΔR%
±R%
±ΔR%
±ΔR%
±R%
MΩ
MΩ
±ΔR%
±ΔR%
Performance Data
Load at rated power
(1000hrs cyclic load at 70C)
De-rating from rated power at 70C
Load at rated power (1000hrs cyclic load at 70°C)
Short term overload
(6.25 x rated power for 5s)
De-rating from rated power at 70°C
Short term overload (6.25 x rated power for 5s)
Temperature rapid change
(-55 / +150C, 100 cycles)
Damp heat steady state
Damp heat steady state
Resistance to solder heat
(260C for 10s)
Resistance to solder heat (260°C for 10s)
High temperature operation
High temperature operation
Insulation resistance
Insulation resistance
Maximum (+0.05Ω)
1
Maximum (+0.005Ω)
See Graph
1
See Graph
0.5
1
0.5
0.5
0.5
0.5
0.5
0.5
>1000
>1000
0.5
1
Temperature rapid change (-55 / +150°C, 100 cycles)
Temperature Derating
Temperature Derating
100%
Packaging
Packaging
Proportion of Pr
Proportion of Pr
80%
60%
40%
20%
0%
0
100%
The standard packing for LCS parts is on 8mm wide plastic carrier tape for
The standard packing for LCS parts is on 8mm wide plastic carrier
0603 to 1206 sizes and 12mm wide plastic carrier tape for 2010 and 2512
tape for 0603 to 1206 sizes and 12mm wide plastic carrier tape for
sizes. All sizes are wound on 7” (178mm) reels as per IEC 286-3.
2010 and 2512 sizes. All sizes are
wound on 7”
(178mm) reels as per
IEC 286-3.
80%
60%
40%
20%
0%
0
50
50
100
100
150
150
Ambient Temperature (°C)
Ambient Temperature (°C)
Ordering Procedure
Ordering Procedure
Example: LCS0603-R20DT5
(LCS0603,
200mΩ 0.5%,
Pb-free, tape packed 5000/reel)
Example: LCS0603-R20DT5 (LCS0603, 200mΩ 0.5%, Pb-free, tape packed 5000/reel)
L
C
1
S
0
6
2
0
3
-
R
2
3
0
D
4
T
5
5
1
LCS
2
3
Value
4
Tolerance
D=±0.5%
F=±1%
J=±5%
T5
T3
T18
0603
0805, 1206, 2010
2512
5
Termination & Packing
Pb-free, 5000/reel
Pb-free, 3000/reel
Pb-free, 1800/reel
Standard
Series Size
0603 R=ohms
0805
1206
2010
2512
PB SnPb terminations (pack quantities are as for Pb-free)
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.
BI Technologies IRC Welwyn
www.ttelectronicsresistors.com
www.ttelectronics.com/resistors
© TT Electronics plc
11.17
Test/Measurement
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