MRA Datasheet, PDF (1/2 Pages) Ohmite Mfg. Co. – Power dissipation up to 2W

MRA Precision Metal Film Resistors
Europe’s No 1 selling axial thin 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/ºC
• RoHS Compliant
Characteristics
Tolerance (Code):
Operating temperature:
Temperature coefficient:
Overload:
Endurance:
Damp heat with load:
Solderability:
Temperature coefficient:
Pulse overload:
Terminal strength:
Shelf life:
± 0.05%, ± 0.1% (B), ± 0.25 (C), ± 0.5% (D), ± 1% (F)
-55°C to +155°C
± 5ppm/°C , ± 10ppm/°C , ± 15ppm/°C, ± 25ppm/°C, ± 50ppm/°C, ± 100ppm/°C
± 0.25% rated continuous working voltage =√(P*R)*2.5 for 5 seconds
±0.2%, 70±2˚C, rated continuous working voltage for 1000 hours with 1.5 hrs ON and 0.5 hrs OFF
±0.3%, 40±2˚C, 90 - 95% RH, rated continuous working voltage for 1000 hours with 1.5 hrs ON and 0.5 hrs
OFF
90% min coverage, 245±5˚C for 3 seconds
by type, resistance value 25˚C and 100˚C
±0.75%, 4 times rated continuous working voltage =√(P*R) for 10,000 cycles with 1 second ON and 25
seconds OFF
Tensile ≥2.5kg, direct load for 10 seconds in the direction of the terminal leads
∆R ±0.1%, 12 months at 25˚C±3˚C, 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
MRA0309 9.0 ±0.5
2.3 ±0.3
3.2 ±0.5
28 ±2.0
26 ±2.0
0.55
0.65
d
D
MRA0412 11.5 ±1.0
MRA0516 15.5 ±1.0
4.5 ±0.5 35 ±2.0 0.78
5.0 ±0.5 32 ±2.0 0.78
L
H
Ordering Procedure
Standard Resistor: Series, Resistance Value, Tolerance, TCR,
Packaging (TA: Taped Ammo, TR: Taped Reel)
e.g.: MRA0104 10R B 15PPM TA
Derating Curve
100
80
60
40
20
0
0
20
40
60
80
100
120
140
160
Ambient Temperature (°C)
Page 1 of 2
For more information and ordering, please consult
www.arcolresistors.com
6/14.02