FHR2-3818

FHR 2-3025 3818 FHR 4-3825 3825H 4618 Precision Shunt Resistors • • • • • Resistances from 0.001Ohm to 100Ohms Power Rating to 50Watt Resistance Tolerances to ±0.1% TCR to ±10ppm/K Very Low Inductance SPECIFICATIONS Type FHR 2-3025 FHR 2-3818 0.010 to 100Ohms 3 W 40 W 2.0 K/W FHR 4-3825 FHR 4-3525H FHR 4-4618 0.001 to 100Ohms 3 W 5 W 50 W 1.6 K/W 1% / 2% / 5% 0.5% / 1% / 2% / 5% 0.1% / 0.25% / 0.5% / 1% / 2% / 5% 0.1% / 0.25% / 0.5% / 1% / 2% / 5% 0.1% / 0.2% / 0.5% (depends on stress) Resistance Range Power rating free air 70°C for 3825H with heatsink Thermal Resistance Rthj-c Tolerances from 0R001 from 0R005 from 0R01 from 0R02 Stability Temperature Coefficient Standard Option 1 0.5% / 1% / 2% / 5% 0.25% / 0.5% / 1% / 2% / 5% ±15ppm/K (20 to 60°C) R ≤ 0R2 TCR see table A next page ±15ppm/K (20 to 60°C) ±25ppm/K (20 to 60°C) for contact F ±10ppm/K (20 to 60°C) (only contact A and K) Max. Current Voltage Proof Thermal EMF Operating Temperature Range Resistor Material Substrate Housing Connector Material Terminals Max. torque 2 150 A / 200 A for contact F 500 VDC < 0.1µV/K -40 to 130°C CuNiMn-Foil anodized aluminium Epoxy Cu tinned 4 1 Nm Ordering Information Part Number - Resistance - Contact - Tolerance FHR 4-4618 0.050 Ohms A 1% Powertron GmbH Potsdamer Strasse 18a D-14513 Teltow +49 (0)3328 3530-0 A Riedon Company www.powertron.de +49 (0)3328 3530-15 Page 18 rev. 03/2006A FHR 2-3025 3818 FHR 4-3825 3825H 4618 Precision Shunt Resistors SPECIFICATIONS (continued) Temperature Coefficient 4000 250 2000 table A +15ppm/K 200 0 -15ppm/K Limit 2 (3σ) Nominal ∆R/R Limit 1 (3σ) -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) Resistance Value (mOhm) 5 10 20 50 100 200 Derating 120 Power ( % from nominal power) Power Rating Notes - 100 80 60 40 20 0 25 0.5% 0.2% 0.1% The FHR Series Resistors must be attached to a suitable heatsink. The maximum internal resistor temperature is 130°C. To specify an appropriate heatsink use the following formula : RqH = TMAX - ( P x RqR ) - TA P Where: RqH = Thermal Resistance of Heatsink ( K/W ) RqR = Thermal Resistance of Resistor ( K/W ) TMAX = Maximum Temperature of Resistor TA = Ambient Temperature of Heatsink ( °C ) P = Power Through Resistor ( W ) 50 85 100 115 130 Temperature of the backplate (°C) Dimensions FHR 4-3825 / FHR 4-3825H Dimension A B C D E F G H I J (A-Contact) J (K-Contact) K L M N N (Variante H) O P Q (A-Contact) Q (K-Contact) R S (Variante H) mm 24.00 38.00 1.40 4.00 34.00 17.50 1.5x45° 17.50 27.50 1.50 1.10 3.00 3.20 2.00 max.5.5 max.10.3 30.40 15.00 3.60 3.30 2.80 19.00 tol. (±mm) 0.2 0.3 0.4 0.1 0.3 0.2 0.1 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.4 0.2 0.1 0.1 0.1 0.2 inches 0.94 1.50 0.06 0.16 1.34 0.69 0.06x45° 0.69 1.08 0.06 0.04 0.12 0.13 0.08 max.0.22 max.0.4 1.20 0.59 0.14 0.13 0.11 0.75 tol. (±inches) 0.008 0.012 0.016 0.004 0.012 0.008 0.004 0.008 0.008 0.004 0.004 0.004 0.004 0.004 0.008 0.008 0.016 0.008 0.004 0.004 0.004 0.008 Powertron GmbH Potsdamer Strasse 18a D-14513 Teltow +49 (0)3328 3530-0 A Riedon Company www.powertron.de +49 (0)3328 3530-15 Page 19 rev. 03/2006A FHR 2-3025 3818 FHR 4-3825 3825H 4618 Precision Shunt Resistors SPECIFICATIONS (continued) FHR 4-3825F Dimension A B C D E F G H I J K L M N O P Q R S mm 24.00 38.00 1.50 4.00 34.00 17.50 1.5x45° 34.00 32.70 7.50 24.00 6.30 4.80 3.20 2.00 6.00 15.00 4.10 3.30 tol. (±mm) 0.2 0.3 0.2 0.1 0.3 0.2 0.1 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.2 0.2 0.7 0.7 inches 0.94 1.50 0.06 0.16 1.34 0.69 0.06x45° 1.34 1.29 0.30 0.94 0.25 0.19 0.13 0.08 0.24 0.59 0.16 0.13 tol. (±inches) 0.008 0.012 0.008 0.004 0.012 0.008 0.004 0.008 0.008 0.008 0.008 0.008 0.004 0.004 0.004 0.008 0.008 0.028 0.028 FHR 4-4618 Dimension A B C D E F G H I J (A-Contact) J (K-Contact) K L M N O P Q (A-Contact) Q (K-Contact) R mm 17.00 46.00 1.40 8.50 40.00 34.00 1.5x45° 17.50 27.50 1.50 1.10 3.00 3.20 2.00 max.5.5 23.40 15.00 3.60 3.30 2.80 tol. (±mm) 0.1 0.3 0.4 0.2 0.3 0.3 0.1 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.2 0.4 0.2 0.1 0.1 0.2 inches 0.67 1.81 0.06 0.33 1.57 1.34 0.06x45° 0.69 1.08 0.06 0.04 0.12 0.13 0.08 max.0.22 0.92 0.59 0.14 0.13 0.11 tol. (±inches) 0.004 0.012 0.016 0.008 0.012 0.012 0.004 0.008 0.008 0.004 0.004 0.004 0.004 0.004 0.008 0.016 0.008 0.004 0.004 0.008 Powertron GmbH Potsdamer Strasse 18a D-14513 Teltow +49 (0)3328 3530-0 A Riedon Company www.powertron.de +49 (0)3328 3530-15 Page 20 rev. 03/2006A FHR 2-3025 3818 FHR 4-3825 3825H 4618 Precision Shunt Resistors SPECIFICATIONS (continued) FHR 2-3025 tol. (±mm) 0.2 0.2 0.4 0.1 0.2 0.2 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.2 0.4 0.2 0.1 0.1 0.2 tol. (±inches) 0.008 0.008 0.016 0.004 0.008 0.008 0.004 0.008 0.004 0.004 0.004 0.004 0.004 0.008 0.016 0.008 0.004 0.004 0.008 Dimension A B C D E F G H I (A-Contact) I (K-Contact) J K L M N O P (A-Contact) P (K-Contact) Q mm 24.00 30.00 1.40 4.00 27.00 15.00 1.5x45° 20.32 1.50 1.10 1.10 3.20 2.00 max.5.5 30.40 15.00 3.60 3.30 2.80 inches 0.94 1.18 0.06 0.16 1.06 0.59 0.06x45° 0.80 0.06 0.04 0.04 0.13 0.08 max.0.22 1.20 0.59 0.14 0.13 0.11 FHR 2-3818 Dimension A B C D E F G H I (A-Contact) I (K-Contact) J K L M N O P (A-Contact) P (K-Contact) Q mm 17.00 38.00 1.40 8.50 32.00 27.00 1.5x45° 20.32 1.50 1.10 1.10 3.20 2.00 max.5.5 23.40 15.00 3.60 3.30 2.80 tol. (±mm) 0.2 0.3 0.4 0.2 0.3 0.2 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.2 0.4 0.2 0.1 0.1 0.2 inches 0.67 1.50 0.06 0.33 1.26 1.06 0.06x45° 0.80 0.06 0.04 0.04 0.13 0.08 max.0.22 0.92 0.59 0.14 0.13 0.11 tol. (±inches) 0.008 0.012 0.016 0.008 0.012 0.008 0.004 0.008 0.004 0.004 0.004 0.004 0.004 0.008 0.016 0.008 0.004 0.004 0.008 Powertron GmbH Potsdamer Strasse 18a D-14513 Teltow +49 (0)3328 3530-0 A Riedon Company www.powertron.de +49 (0)3328 3530-15 Page 21 rev. 03/2006A