High Power Resistors Type MPH Series Type MPH Series Characteristics Electrical MPH323025 / MPH323818 MPH543825H / MPH344618 Resistance Range: R01 - 100R R001 - 100R Power Rating: 3W (70C) without heatsink 3W (70C) without heatsink (5W for MPH543825H) 40W with heatsink 40W with heatsink (50W for MPH543825H) Thermal Resistance Rthj-c: 2.0 K/W 1.6 K/W Tolerances: from R001: 1%, 5% from R005: 0.5%, 1%, 5% from R010: 0.1%, 0.5%, 1%, 5% 0.1%, 0.5%, 1%, 5% The MPH resistor complements the from R020: 0.1%, 0.5%, 1%, 5% 0.1%, 0.5%, 1%, 5% MPX Series by adding an even higher Stability: 0.1%, 0.5% 0.1%, 0.5% (depends on stress) (depends on stress) Temperature Coefficient: 15ppm/C (20C to 60C) 15ppm/C (20C to 60C) 25ppm/C (20C to 60C) F Terminal 25ppm/C (20C to 60C) F Terminal power rating. With this, user in the area of low ohmic precision can add a 50W device when mounted on a suitable heatsink. By using metal foil on a good MPH323025 / MPH323818 TCR Shift (see table below) heatsink high stability is achieved. Uniform current and power dissipation Voltage Proof: 500 VDC 500 VDC are the result of tin plated copper Thermal EMF: 1V/C 1V/C terminations with a large surface area. Maximum Current: 150A / (200A F Terminal) 150A / (200A F Terminal) Because of the planar construction the MPH resistor is also non-inductive. The materials used and robust construction Characteristics Mechanical guarantee high reliability. The 4 terminal version (Kelvin terminations) Resistor Material: Metal Foil CuNiMn (to DIN 17471) can be used where high stability, Substrate: Anodized Aluminium temperature stability and thermal Housing: Epoxy energy are required. Connector Material: Cu Tinned, 2 and 4 pin Maximum Torque Back-Plate: 1Nm Key Features Characteristics Environmental 50 Watt High Power Dissipation Extremely Low Ohmic Values Low Inductance High Stability Kelvin Terminations Low TCR Operating Temperature Range: -40C to 130C Temperature Coefficient TCR Shift 2000 250 + 15 ppm/K 1000 200 R/R (ppm) -1000 - 15 ppm/K -2000 -3000 Limit 2 (3) -4000 -5000 Nominal R/R TCR - Shift (ppm/K) 0 150 100 50 -6000 Limit 1 (3) -7000 -40 -20 0 20 40 60 80 100 120 140 Heatsink - Temperature (C) Literature No. 1773250 Issued: 11-05 Dimensions are shown for reference purposes only. Dimensions are in millimetres unless otherwise specified. 0 2 5 10 20 50 100 200 Resistance Value (mOhm) Specifications subject to change. www.tycoelectronics.com passives.tycoelectronics.com High Power Resistors Type MPH Series Power Derating Curve Power (% from nominal power) 120 100 0.5% 80 0.2% 60 0.1% 40 20 0 25 50 85 100 115 130 Temperature of the Backplate (C) Literature No. 1773250 Issued: 11-05 Dimensions MPH343825 MPH323025 MPH344618 MPH323818 MPH343825---F MPH343825H Dimensions are shown for reference purposes only. Dimensions are in millimetres unless otherwise specified. Specifications subject to change. www.tycoelectronics.com passives.tycoelectronics.com High Power Resistors Type MPH Series Terminations How to Order MPH 3 43825 R001 B K Common Part Power Rating Style Resistance Value Tolerance Lead B - 0.1% 23025 0.001 Ohm (1 milli Ohm) R001 MPH - Low Ohmic Power Resistor 3 -3 Watts 5 - 5 Watts (MPH543825H) 23818 43825 42825H 44618 0.01 Ohm (100 milli Ohm) R01 1 Ohm (1.0 Ohm) 1R0 C - 0.25% A D - 0.5% F F - 1% K G - 2% J - 5% 10 Ohms (10 Ohms) 10R 100 Ohms (100 Ohms) 100R Literature No. 1773250 Issued: 11-05 Dimensions are shown for reference purposes only. Dimensions are in millimetres unless otherwise specified. Specifications subject to change. www.tycoelectronics.com passives.tycoelectronics.com