Ultra-Precision Shunt Resistor (40 Watts) Features * Excellent temperature characteristics created by metal foil technology * Accurate value on four-terminal wiring, even in low extremity of resistance * High heat dissipation due to aluminum-clad construction with fins * Readiness to mount to heat sink or water-cooled radiator * Availability of threaded holes to fix cables with screw Applications PSB * Current-sensing in precise power supply, motor driver, etc TCR, Resistance Range, Tolerance, Rated Power Composition of Type Number Example: PSB X R0100 B Tolerance Resistance Value TCR Type Resistance value in ohm is expressed by a series of four significant digits and an R designating the decimal point. TCR (ppm/C) 0C to +60C Resistance Range () 015 (W) 0.001 to 0.005 05 (X) 015 (W) Resistance Tolerance (%) Rated Power (W) at 25C 0.1 (B) 0.5 (D) 1 (F) On heat sink* 12 0.005 to 1 40 *Thermal resistance of the heat sink 1C/W. Available to use higher rated power with elevation of cooking effect. Please keep temperature of surface less than 60C. Power Derating Curve Configuration (%) 100 100 egatnecreP rewoP detaR 6 6 88 80 6 60 2 40 8 20 61 84 06 25 20 16 - 6 2 M 6 4 - 4.5 85 40 60 80 Ambient Temperature 100 (C) Example of Applications 60 2 0 - Motor Control Circuit Using Shunt Resistor 2 M3 5 02 6 01 4 Vdd Current Buffer VIN C.B. i Schematic of PSB Type V V Vee 4-Terminal Connection M Shunt Resistor I I= I Dimensions in mm Weight = 22 170g VIN R R Performance ALPHA Specifications Test Condition Parameters ALPHA Typical Test Data 25C -55C to +85C 100 A Maximum Rated Operating Temperature Working Temperature Range Maximum Working Current Power Conditioning 25C, Rated Power, 96 hrs. 0.1% 0.05% Low Temperature Storage and Operation -55C, No Load, 24 hrs. 0.1% 0.05% Dielectric Withstanding Voltage Insulation Resistance Low Temperature Operation Overload Atmospheric: AC 750V, 1 min. DC 500V, 2 min. -55C, Rated Power Rated Power x 2.5, 5 sec. 0.05% over 10,000M 0.1% 0.1% 0.01% over 10,000M 0.5% 0.5% Moisture Resistance +65C to -10C, 90% RH to 98% RH, Rated Voltage, 10 cycles (240 hrs.) 0.1% 0.5% Shock High Frequency Shock 30G, 11ms., Half-Sine Wave, X, Y, Z, 10 shocks each 10Hz to 50Hz to 10Hz, 1 min. X, Y, Z, 2.0 hrs. each 0.05% 0.05% 0.01% 0.01% Life 25C, Rated Power, 1.5 hrs. - ON, 0.5 hrs. - OFF, 2,000 hrs. 0.2% 0.05% High Temperature Exposure 85C, No Load, 2,000 hrs. 0.2% 0.05% Storage Life 15C to 35C, 15% RH to 75% RH, No Load, 10,000 hrs. 0.05% 0.01% Internal Thermal Resistance Between resistive element and base plate 0.3C/W Thermal Electromotive Force 1V/C Frequency Characteristics Temperature of Resistor Surface A: ElementOs Surface Screwed Down (%) 10m B: Bottom of Resistor Aluminum Heat Sink 3 T (C) 2 100m 1 0 A (1.5C/W) B (1.2C/W) 50 esiR erutarepmeT )CD(R/)CA(R 60 1 100mm (L) x 60mm x (W) x 60mm (H) In Free Air A (4.7C/W) B (4.4C/W) 70 -1 40 30 -2 20 -3 On Heat Sink (Rth 1C/W) 10 0.1 1 10 Frequency 100 (kHz) 5 10 15 20 25 Applied Power 30 30 40 (W) 23