MRA Precision Metal Film Resistors
Europes No 1 selling axial metal film high precision resistor. Stable films
are sputtered on to high purity alumina rods, then covered in tough epoxy to
protect from any environmental extremes
Power dissipation up to 2W
Value range from R1 to 10M
Precision tolerance down to 0.05%
Low TCR 5ppm/C
RoHS Compliant
Characteristics
Tolerance (Code): 0.05% (A), 0.1% (B), 0.25 (C), 0.5% (D), 1% (F)
Operating temperature: -55C to +155C
Temperature coefficient: 5ppm/C , 10ppm/C , 15ppm/C, 25ppm/C, 50ppm/C, 100ppm/C
Short time overload: 0.25% RCWV*2.5 or maximum overload voltage for 5 seconds
Endurance: 0.2%, 702C,maximum working voltage for 1000 hours with 1.5 hrs ON and 0.5 hrs OFF
Damp heat with load: 0.3%, 402C, 90 - 95% RH maximum working voltage for 1000 hours with 1.5 hrs ON and 0.5
hrs OFF
Solderability: 90% min coverage, 2455C for 3 seconds
Temperature coefficient: by type, resistance value 25C and 125C
Pulse overload: 0.75%, 4 times RCWV for 10,000 cycles with 1 second ON and 25 seconds OFF
Terminal strength: Tensile 2.5kg, direct load for 10 seconds in the direction of the terminal leads
Shelf life: R 0.1%, 12 months at 25C3C, 80% RH maximum
Dimensions (mm)
Type L D H d 0.03
MRA0104 3.3 +0.7/-0.2 1.8 0.3 29 2.0 0.45
MRA0207 6.3 0.5 2.3 0.3 28 2.0 0.55
d D
MRA0309 9.0 0.5 3.2 0.5 26 2.0 0.65
MRA0412 11.5 1.0 4.5 0.5 35 2.0 0.78
L H
MRA0516 15.5 1.0 5.0 0.5 32 2.0 0.78
Ordering Procedure Derating Curve
100
Standard Resistor: Series, Resistance Value, Tolerance, TCR,
80
Packaging (TA: Taped Ammo, TR: Taped Reel)
60
40
20
e.g.: MRA0104 10R B 15PPM TA
0
0 20 40 60 80 100 120 140 160
Ambient Temperature (C)
ARCOL UK Limited, The information contained herein does not form part of a
Threemilestone Ind. Estate, contract and is subject to change without notice. ARCOL
Truro, Cornwall, TR4 9LG, UK. operate a policy of continual product development, therefore,
T +44 (0) 1872 277431 specifications may change.
F +44 (0) 1872 222002
It is the responsibility of the customer to ensure that the
E sales arcolresistors.com
@
component selected from our range is suitable for the intended
www.arcolresistors.com application. If in doubt please ask ARCOL.
Page 1 of 2 7/14.50
Power Rated %MRA Precision Metal Film Resistors
Electrical Specifications
Resistance Range / Tolerance / TCR (ppm/C)
Max. operating
Type Wattage
voltage
0.05% TCR 0.1% TCR 0.25% TCR 0.5% TCR 1% TCR
15ppm
10R - 1M 25ppm 10R - 4M99 15ppm 10R - 4M99 15ppm
15ppm 50 ppm
1/8W 200V 10R - 1M 25ppm
25ppm 25ppm
10R - 10M 10R - 10M
50 ppm
50 ppm 50 ppm
1R - 1M 100ppm
1R - 10M 100ppm R1 - 10M 100ppm
5ppm
10ppm
5ppm
10R - 1M 15ppm 10R - 1M 10R - 1M 10ppm
5ppm 10ppm
5ppm 25ppm
10ppm
10ppm 50 ppm
1/4W 250V 10R - 1M 10R - 1M 15ppm
15ppm
15ppm 15ppm
25ppm
25ppm
10R - 10M 25ppm 10R - 10M 25ppm
50ppm
1R - 1M 100ppm
50 ppm 50 ppm
1R - 10M 100ppm R1 - 10M 100ppm
5ppm
10ppm
5ppm
10R - 1M 15ppm 10R - 1M 10R - 1M 10ppm
10ppm
25ppm
5ppm
5ppm
50 ppm
10ppm
10ppm
1/2W 350V 10R - 1M 10R - 1M 15ppm
15ppm
25ppm
15ppm 15ppm
25ppm
50ppm
10R - 10M 25ppm 10R - 10M 25ppm
1R - 1M 100ppm
50 ppm 50 ppm
1R - 10M 100ppm R1 - 10M 100ppm
15ppm
10R - 1M 25ppm 10R - 4M99 15ppm 10R - 4M99 15ppm
15ppm 50ppm
1W 450V 10R - 1M 25ppm
25ppm 25ppm
50ppm
10R - 10M 10R - 10M
50 ppm 50 ppm
1R - 1M 100ppm
1R - 10M 100ppm R1 - 10M 100ppm
15ppm
10R - 1M 25ppm 10R - 4M99 15ppm 10R - 4M99 15ppm
15ppm
50ppm
2W 500V 10R - 1M 25ppm
25ppm 25ppm
50ppm
10R - 10M 10R - 10M
50 ppm 50 ppm
1R - 1M 100ppm
1R - 10M 100ppm R1 - 10M 100ppm
ARCOL UK Limited, The information contained herein does not form part of a
Threemilestone Ind. Estate, contract and is subject to change without notice. ARCOL
Truro, Cornwall, TR4 9LG, UK. operate a policy of continual product development, therefore,
T +44 (0) 1872 277431 specifications may change.
F +44 (0) 1872 222002
It is the responsibility of the customer to ensure that the
E sales arcolresistors.com
@
component selected from our range is suitable for the intended
www.arcolresistors.com application. If in doubt please ask ARCOL.
Page 2 of 2
7/14.50
MRA0516 MRA0412 MRA0309 MRA0207 MRA0104