Low Resistance
Metal Alloy Resistor
LRMA Series
·
·
·
·
·
·
Resistance range 1 to 100mΩ
High temperature operation to 170°C
Low thermal EMF version
High power version
Current sensing for power electronics
RoHS compliant & halogen free
Electrical Data
LRMA Version
Size
T (Standard)
2512
≤R01: 2, >R01: 1
≤R01: 10, >R01: 5
1 to 50
P (Power)
2512
3
15
3 to 100
Power rating @70°C
Overload rating (5s)
Resistance range
W
W
mΩ
1, 1.5, 2, 3, 4, 5, 7, 8, 9, 10,
11, 12, 15, 18, 20, 25, 30, 33, 40, 50
1, 5
3, 5, 10, 11, 15,
20, 25, 30, 40, 50, 80, 100
Standard values 1
mΩ
Resistance tolerance
TCR (25 to 125°C)
Ambient temperature
Insulation resistance
Element alloy
%
ppm/°C
°C
>R01: ±75
>R001 & ≤R01: ±100,
R001: ±275
-55 to 170
>100
Cu-Ni or Mn-Cu
Black
MΩ
Coating
LRMA Version
Size
M (Low thermal EMF)
2512
N (Inverse)
1206
1
5
0815
Power rating @70°C
W
≤R02: 2, >R02: 1
≤R02: 10, >R02: 5
5 to 40
1 2
Overload rating (5s)
Resistance range
W
mΩ
5
5 to 30
1 to 30
1, 6, 8, 10,
15, 20, 25, 30
Standard values 1
mΩ
5, 10, 15, 20, 25, 30
5, 10, 20, 30, 40
Resistance tolerance
TCR (25 to 125°C)
Ambient temperature
Insulation resistance
Element alloy
%
ppm/°C
1, 5
≤R01: ±100
-55 to 170°C
>100
>R01: ±75,
±100
MΩ
Mn-Cu
Cu-Ni
Black
Coating
Black
Green
Notes: 1. Non-standard values may be available for high volume requirements. 2. Requires 300mm2 copper pad & trace area
Physical Data (All dimensions in mm and nominal weight in g)
Size
1206
L
W
C
t
Wt
3.2 ±0.2
1.6 ±0.2
0.5 ±0.3
0.6 ±0.2
18.3
2.1 ±0.25
6.4 ±0.2
3.75 ±0.3
3.2 ±0.2
0.5 ±0.2
2.0 ±0.2
0.7 ±0.2
14.1
0815
2512
≤R002
0.65 ±0.25
57 to 63
2512
0.9 ±0.2
>R002
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.
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09. 11
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