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| FPR 2-T218 PrecisionShuntResistors * * * * * * Resistances from 0.002Ohm to 50Ohms Power Rating to 30Watt Resistance Tolerances to 0.25% TCR to 15ppm/K Load Stability to 0.1% TO-218 (TO-247) Housing SPECIFICATIONS Type ResistanceRange Powerrating freeair70C withheatsink ThermalResistanceRthj-c Tolerances from0.002Ohms from0.01Ohms from0.02Ohms Stability Temperature Coefficient VoltageProof ThermalEMF OperatingTemperatureRange ResistorMaterial Substrate Housing ConnectorMaterial Terminals Max. Torque 1%/2%/5% 0.5%/1%/2%/5% 0.25%/0.5%/1%/2%/5% 0.1%/0.2%/0.5% (dependsonstress) R>0.2Ohms15ppm/K(20to60C) R 0.2 Ohms TCR see table A next page 300VDC <0.1V/K -40to130C CuNiMn-Foil anodizedaluminium PPS Cutinned 2 1Nm FPR 2-T218 0.002to50Ohms 2W 30W 2.5K/W Derating 120 Power(%from nominalpower) PowerRatingNotes0.5% 0.2% 0.1% 100 80 60 40 20 0 25 TheFPRSeriesResistorsmustbeattachedtoasuitableheatsink. The maximum internal resistor temperature is 130C. Tospecifyanappropriateheatsinkusethefollowingformula: RqH=TMAX - ( P x RqR)-TA P 50 85 100 115 130 Where: Temperatureofthebackplate(C) RqH=ThermalResistanceofHeatsink(K/W) RqR=ThermalResistanceofResistor(K/W) TMAX = Maximum Temperature of Resistor TA=AmbientTemperatureofHeatsink(C) P=PowerThroughResistor(W) Ordering Information PartNumber-Resistance-Contact-Tolerance FPR2-T2180.068OhmsA0.5% Powertron GmbH PotsdamerStrasse18a D-14513Teltow +49(0)33283530-0 ARiedonCompany www.powertron.de +49(0)33283530-15 Page41 rev.03/2006A FPR 2-T218 PrecisionShuntResistors SPECIFICATIONS (continued) Temperature Coefficient 4000 250 2000 tableA +15ppm/K 200 0 -15ppm/K Limit 2 (3) Nominal R/R Limit 1 (3) -2000 -4000 TCR-Shift(ppm/K) R/R (ppm) 150 100 -6000 50 -8000 -40 -20 0 20 40 60 80 100 120 140 0 2 Temperature(C) ResistanceValue(mOhm) 5 10 20 50 100 200 Dimensions Dimension A B C D E F G H(A-Contact) H(B-Contact) H(C-Contact) I J K L(A-Contact) L(B-Contact) L(C-Contact) M(A-Contact) M(B-Contact) M(C-Contact) N O P Q R mm 21.10 15.50 4.90 4.00 12.60 O3.2 2.95 17.65 16.85 17.75 10.16 1.40 3.00 7.70 5.00 14.50 2.70 1.90 2.80 1.65 4.60 6.15 0.80 2.00 tol. (mm) 0.2 0.2 0.1 0.1 0.2 0.1 0.1 0.2 0.2 0.2 0.2 0.1 0.1 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 inches 0.83 0.61 0.19 0.16 0.50 O0.13 0.12 0.69 0.66 0.70 0.40 0.06 0.12 0.30 0.20 0.57 0.11 0.07 0.11 0.06 0.18 0.24 0.03 0.08 tol. (inches) 0.008 0.008 0.004 0.004 0.008 0.004 0.004 0.008 0.008 0.008 0.008 0.004 0.004 0.008 0.008 0.008 0.004 0.004 0.004 0.004 0.004 0.008 0.004 0.004 Powertron GmbH PotsdamerStrasse18a D-14513Teltow +49(0)33283530-0 ARiedonCompany www.powertron.de +49(0)33283530-15 Page42 rev.03/2006A |
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