Low Resistance Metal Alloy Resistor
LRMA Series
Features
ꢀ Resistanceꢀrangeꢀ0.5mΩꢀtoꢀ500mΩ
ꢀ Highꢀtemperatureꢀoperaꢁonꢀtoꢀ170°C
ꢀ LowꢀthermalꢀEMFꢀversion
ꢀ Highꢀpowerꢀversion
ꢀ Currentꢀsensingꢀforꢀpowerꢀelectronics
ꢀ RoHSꢀcompliantꢀ&ꢀhalogenꢀfree
ꢀ AEC-Q200ꢀqualified
AllꢀpartsꢀareꢀPb-freeꢀandꢀcomplyꢀwithꢀEUꢀDirecꢁveꢀ2011/65/EUꢀamendedꢀbyꢀ(EU)ꢀ2015/863ꢀ(RoHS3)
Electrical Data
LRMA Version
Size
T (Standard)
2512
P (Power)
2512
≤R10: 3, >R10: 2
2010
1.5
7.5
Power rating @70°C
Overload rating (5s)
Resistance range
W
W
mΩ
≤R01: 2, >R01: 1
≤R01: 10, >R01: 5
≤R10: 15, >R10: 10
2 to 50
1 to 100
0.5 to 500
0.5, 0.75, 1, 1.1, 1.5, 2, 2.5, 3, 4, 5, 6, 6.8, 7, 8, 9, 10, 11, 12, 13, 15, 18, 20,
22,25, 27, 30, 33, 39, 40, 45, 47, 50, 57, 60, 68, 70, 75, 80, 85, 90,100,
120, 130, 140, 150, 180, 200, 220, 240, 250, 270, 280, 300, 330, 390, 400, 500
Standard values 1
mΩ
1, 1.5, 2, 3, 3.5, 4, 5, 6, 7, 8, 10, 11, 12,
15, 18, 20, 25, 30, 33, 35, 40, 50, 100
2, 5, 6, 10,
15, 20, 50
Resistance tolerance
TCR (25 to 125°C)
Ambient temperature
Insulation resistance
Element alloy
%
0.51, 1, 5
ppm/°C ≥R01: ±75
>R001 & <R01: ±100,
≤R001: ±275
-55 to 170
>100
<R001: ±275 ≥R001: ±50
°C
MΩ
Cu-Ni
Cu-Ni / Mn-Cu
LRMA Version
Size
M (Low thermal EMF)
N (Inverse)
0805
0.5
2.5
1206
2512
0612
0815
1225
3
15
12
5
Power rating @70°C
Overload rating (5s)
Resistance range
W
W
mΩ
1
5
≤R01: 2, >R01: 1
≤R01: 10, >R01: 5
0.5 to 50
1 to 25
1 to 50
1 to 10
1 to 30
2 to 40
1, 2, 3, 5, 6, 8, 1, 1.2, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12,
9,10, 20, 25 14, 15, 18, 20, 22, 25, 30, 39, 40, 50
1, 2, 3, 4, 5, 10, 2,3,4,5,10,15,
15, 20, 25, 30 20,25,30,40
0.5, 0.75, 1, 1.5, 2, 3.5, 5,
10, 20, 25, 30, 40, 50
0.51, 1, 5
Standard values 1
Resistance tolerance
TCR (25 to 125°C)
mΩ
1, 3, 5, 10
%
≥R01: ±75,
>R001 &
ppm/°C ±100
±50
±100
<R01: ±100 ≤R001: ±275
Ambient temperature
Insulation resistance
Element alloy
-55 to 170°C
>100
MΩ
Mn-Cu
Mn-Cu / Cu-Ni
Notes: 1. Non-standard values and 0.5% tolerance may be available for high volume requirements. 2. Requires 300mm2 copper pad & trace area
Physical Data (All dimensions in mm and nominal weight in mg)
Size
L
W
C
t
Wt
0.4 ±0.2
0805
2.0 ±0.1 1.25 ±0.1
0.6 ±0.2
5.5
0.6 ±0.2
0805 ≤R002
<R002
1206 ≥R002
1206
1.1 ±0.3 0.75 ±0.2
0.5 ±0.3 0.6 ±0.2
18.3
3.2 ±0.2 1.6 ±0.2
1.7±0.2
3.2±0.2
0.4±0.2
0.6 ±0.2
12.9
14.1
35.6
0612
0815
2010
2.3 ±0.2 3.75 ±0.3 0.5 ±0.2 0.7 ±0.2
5.0 ±0.2 2.5 ±0.2 0.6 ±0.3 0.6 ±0.2
2.6 ±0.2
<R001
≥R001 & ≤R0031
2512
6.4 ±0.2 3.2 ±0.2
0.6 ±0.2
57 to 63
2.2 ±0.2
0.9 ±0.2
0.5 ±0.2
2512
2512
1225
1
>R003
3.2 ±0.3 6.4 ±0.3
0.9 ±0.2
70
Note 1 - This applies to LRMAT2512 and LRMAM2512. For LRMAP2512 this threshold is R004
GeneralꢀNote
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09.23