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): ± 0.05%, ± 0.1% (B), ± 0.25 (C), ± 0.5% (D), ± 1% (F) Operating temperature: -55°C to +155°C Temperature coefficient: ± 5ppm/°C , ± 10ppm/°C , ± 15ppm/°C, ± 25ppm/°C, ± 50ppm/°C, ± 100ppm/°C Overload: ± 0.25% rated continuous working voltage =√(P*R)*2.5 for 5 seconds Endurance: ±0.2%, 70±2˚C, rated continuous working voltage for 1000 hours with 1.5 hrs ON and 0.5 hrs OFF Damp heat with load: ±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 Solderability: 90% min coverage, 245±5˚C for 3 seconds Temperature coefficient: by type, resistance value 25˚C and 100˚C Pulse overload: ±0.75%, 4 times rated continuous working voltage =√(P*R) 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 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 2.3 ±0.3 28 ±2.0 0.55 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 MRA0516 15.5 ±1.0 5.0 ±0.5 32 ±2.0 0.78 Ordering Procedure D d L H Derating Curve Standard Resistor: Series, Resistance Value, Tolerance, TCR, Power Rated % Packaging (TA: Taped Ammo, TR: Taped Reel) 100 e.g.: MRA0104 10R B 15PPM TA 80 60 40 20 0 0 20 40 60 80 100 Ambient Temperature (°C) For more information and ordering, please consult www.arcolresistors.com Page 1 of 2 6/14.02 120 140 160 MRA Precision Metal Film Resistors Electrical Specifications MRA0207 MRA0104 Type Wattage Max. operating voltage 1/8W Resistance Range / Tolerance / TCR (ppm/ºC) ±0.05% TCR 200V 1/4W 250V ±0.1% 10R - 1M 10R - 1M ±5ppm ±10ppm ±15ppm ±25ppm 10R - 1M TCR ±15ppm ±25ppm ±50 ppm ±5ppm ±10ppm ±15ppm ±25ppm ±50ppm ±0.25% TCR ±0.5% TCR ±1% TCR 10R - 1M ±15ppm ±25ppm ±50 ppm 10R - 4M99 ±15ppm 10R - 4M99 ±15ppm 1R - 1M ±100ppm 10R - 10M ±25ppm ±50 ppm 10R - 10M ±25ppm ±50 ppm 1R - 10M ±100ppm R1 - 10M ±100ppm 10R - 1M ±5ppm ±10ppm ±15ppm ±25ppm ±50 ppm 10R - 1M ±5ppm ±10ppm 10R - 1M ±10ppm 10R - 10M ±15ppm ±25ppm ±50 ppm 10R - 10M ±15ppm ±25ppm ±50 ppm 1R - 10M ±100ppm R1 - 10M ±100ppm 10R - 1M ±5ppm ±10ppm 10R - 1M ±10ppm 10R - 10M ±15ppm ±25ppm ±50 ppm 10R - 10M ±15ppm ±25ppm ±50 ppm 1R - 10M ±100ppm R1 - 10M ±100ppm 10R - 4M99 ±15ppm 10R - 4M99 ±15ppm 10R - 10M ±25ppm ±50 ppm 10R - 10M ±25ppm ±50 ppm 1R - 10M ±100ppm R1 - 10M ±100ppm 10R - 4M99 ±15ppm 10R - 4M99 ±15ppm 10R - 10M ±25ppm ±50 ppm 10R - 10M ±25ppm ±50 ppm 1R - 10M ±100ppm R1 - 10M ±100ppm 1R - 1M MRA0309 10R - 1M 1/2W 350V 10R - 1M ±5ppm ±10ppm ±15ppm ±25ppm 10R - 1M ±5ppm ±10ppm ±15ppm ±25ppm ±50ppm MRA0516 MRA0412 1R - 1M 1W 2W 450V 500V 10R - 1M 10R - 1M ±15ppm ±25ppm ±50ppm ±15ppm ±25ppm ±50ppm ±100ppm ±5ppm ±10ppm ±15ppm ±25ppm ±50 ppm ±100ppm 10R - 1M ±15ppm ±25ppm ±50ppm 1R - 1M ±100ppm 10R - 1M ±15ppm ±25ppm ±50ppm 1R - 1M ±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 E [email protected] www.arcolresistors.com 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. Page 2 of 2 6/14.02