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| NPR NPS 2-T220 T221 NHR NHS 2-T220 T221 PowerResistors * * * * * * * Resistances from 0.02Ohm to 100kOhms Power Rating to 50Watt Resistance Tolerances to 1% TCR to 50ppm/K Load Stability to 0.5% TO-220 Housing Convenient SMD D2Pak Available SPECIFICATIONS Type ResistanceRange Powerrating freeair70C withheatsink ThermalResistanceRthj-c Tolerances from0.02Ohms from1.0Ohms Stability Temperature Coefficient 0.02to0.049Ohms 0.05to0.099Ohms 0.1Ohmsto100kOhms VoltageProof Max.Voltage dependingonresistancevalue 2.0kVDC 2%/5% 1%/2%/5% 0.5% 600ppm/K 300ppm/K 100ppm/K uponrequest50ppm/K 1.5kVDC NPR / NPS 0.02Ohmsto100kOhms 1.5W 30W 3.5K/W NHR / NHS 0.02Ohmsto15kOhms 1.5W 50W 2.1K/W 10000 max. working voltage (VDC) 1000 100 10 1 2 Ohm OperatingTemperatureRange ResistorMaterial Substrate Housing ConnectorMaterial Terminals Max.Torque 10 Ohm 100 Ohm 1 kOhm 5 kOhm 10 kOhm 100 kOhm -40to155C ThickFilm Al2O3 EpoxyorPPS Cutinned 2 T220:1Nm T221:0.8Nm Ordering Information PartNumber-Resistance-Contact-Tolerance NHR2-T221C1.1kOhms1% Riedon Inc. 300CypressAvenue AlhambraCA91801 www.riedon.com (626)284-9901 (626)284-1704 Page80 rev.03/2006A NPRNPS 2-T220T221 NHRNHS2-T220T221 PowerResistors SPECIFICATIONS (continued) Temperature Coefficient 100ppm/K 7000 R/R (ppm) 50ppm/K 2000 -3000 -8000 -50 -25 0 Temperature(C) 25 50 75 100 125 120 Derating PowerRatingNotes- Power ( % from nominal power) 100 80 60 40 20 0 25 50 85 100 115 130 145 155 Temperature of the backplate (C) TheNPR/NHRSeriesResistorsmustbeattachedtoasuitable heatsink.Themaximuminternalresistortemperatureis155C. Tospecifyanappropriateheatsinkusethefollowingformula: RqH=TMAX-(PxRqR)-TA P Where: RqH=ThermalResistanceofHeatsink(K/W) RqR=ThermalResistanceofResistor(K/W) TMAX=MaximumTemperatureofResistor TA=AmbientTemperatureofHeatsink(C) P=PowerThroughResistor(W) Dimensions NPS/NHS2-T220 Dimension A B C D E F G H I J K mm 12.70 10.16 0.76 5.08 4.00 1.20 14.60 15.00 17.33 0.40 1.85 tol. (mm) 0.2 0.2 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.1 0.1 inches 0.50 0.40 0.03 0.20 0.16 0.05 0.57 0.59 0.68 0.02 0.07 tol. (inches) 0.008 0.008 0.004 0.004 0.004 0.004 0.008 0.008 0.008 0.004 0.004 Dimension A B C D E F mm 12.10 11.16 18.33 5.08 1.76 3.20 inches 0.476 0.439 0.722 0.200 0.069 0.126 Riedon Inc. 300CypressAvenue AlhambraCA91801 www.riedon.com (626)284-9901 (626)284-1704 Page81 rev.03/2006A NPRNPS 2-T220T221 NHRNHS2-T220T221 PowerResistors SPECIFICATIONS (continued) NPR/NHR2-T220 Dimension A B C D E F G H I J K L M N O mm 17.30 10.16 6.00 O3.7 16.40 5.08 0.76 1.30 13.80 2.00 1.20 4.00 2.90 0.40 1.85 tol. (mm) 0.2 0.2 0.1 0.1 0.2 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 inches 0.68 0.40 0.24 O0.146 0.65 0.20 0.03 0.05 0.54 0.08 0.05 0.16 0.11 0.02 0.07 tol. (inches) 0.008 0.008 0.004 0.004 0.008 0.004 0.004 0.004 0.008 0.004 0.004 0.004 0.004 0.004 0.004 NPR/NHR2-T221 tol. (mm) 0.2 0.2 0.1 0.1 0.2 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 tol. (inches) 0.008 0.008 0.004 0.004 0.008 0.004 0.004 0.004 0.008 0.004 0.004 0.004 0.004 0.004 0.004 Dimension A B C D E F G H I J K L M N O mm 18.30 10.16 3.70 O3.2 16.40 5.08 0.76 1.30 13.80 2.00 1.20 4.00 3.90 0.40 1.85 inches 0.72 0.40 0.15 O0.126 0.65 0.20 0.03 0.05 0.54 0.08 0.05 0.16 0.15 0.02 0.07 Riedon Inc. 300CypressAvenue AlhambraCA91801 www.riedon.com (626)284-9901 (626)284-1704 Page82 rev.03/2006A |
Price & Availability of NPR2-T221
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