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PDFs and Datasheets MRA Datasheet

MRA Datasheet

Precision Metal Film Resistors

MRA Product image

 

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

 

Features

  • Power dissipation up to 2W
  • Value range from R1 to 10M
  • Precision tolerance down to ±0.05%
  • Low TCR ± 5ppm/ºC
  • RoHS Compliant

Electrical Specifications

MRA Specifications

 

Characteristics

± 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 25seconds 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

 

Derating Curve

MRA Graph 1

 

 

Ordering Procedure

 

Standard Resistor  Series, Resistance Value, Tolerance, TCR,Packaging (TA: Taped Ammo, TR: Taped Reel)e.g.: MRA0104 10R B 15PPM TA

Dimensions

(mm)

L: 3.3 +0.7/-0.2

D: 1.8 ±0.3

H: 29 ±2.0

d ±0.03: 0.45

L: 6.3 ±0.5

D: 2.3 ±0.3

H: 28 ±2.0

d ±0.03: 0.55

L: 9.0 ±0.5

D: 3.2 ±0.5

H: 26 ±2.0

d ±0.03: 0.65

L: 11.5 ±1.0

D: 4.5 ±0.5

H: 35 ±2.0

d ±0.03: 0.78

L: 15 . 5 ±1.0

D: 5.0 ±0.5

H: 32 ±2.0

d ±0.03: 0.78

MRA Dimensions 1

 

 

The information contained herein does not form part of a contract and is subject to change without notice. ARCOL operate a policy of continual product development therefore, specifications may change.


It is the responsibility of the customer to ensure that the component selected from our range is suitable for the intended application. If in doubt please ask ARCOL

 

 

ARCOL UK Limited,
Threemilestone Ind. Estate,
Truro, Cornwall, TR4 9LG, UK.
T +44 (0) 1872 277431
F +44 (0) 1872 222002
E [email protected]
www.arcolresistors.com

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