PSB Series Ultra PrUltra Precision Shunt Resistor (40 Wecision Shunt Resistor (40 Watts)atts) FEATURES Excellent temperature characteristics created by Bulk Metal PSB PSB 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 Current-sensing in precise power supply, motor driver, etc. Caution Please screw current terminals >5N m, voltage terminal >1N m TCR, RESISTANCE RANGE, TOLERANCE, RATED POWER COMPOSITION OF TYPE NUMBER Resistance Resistance Rated Power TCR (ppm/C) Range Tolerance (W) 0C to +60C () (%) at 25C PSB X R0100 B 12 015 (W) 0.001 to 0.005 0.1 (B) in free air 0.5 (D) and 05 (X) 1 (F) 40 0.005 to 1 015 (W) On heat sink* *Thermal resistance of the heat sink 1C/W. Available to use higher rated power with elevation of cooling effect. Resistance value in ohm is expressed by a series of four Please keep temperature of element surface less than 60C. significant digits and an R designating the decimal point. POWER DERATING CURVE CONFIGURATION (DIMENSIONS IN mm) 100 66 88 2 8 16 2-M6 EXAMPLE OF APPLICATIONS Motor Control Circuit Using Shunt Resistor 60 20 2-M3 1Vdd Current Buffer VIN 1 C.B. 2 i Schematic of PSB Type 2Vee M 4-Terminal Connection VV Shunt Resistor VIN I= II Weight =170g R R www.alpha-elec.co.jp For any questions, contact Document No.: 67010 20 sales-alpha alpha-elec.co.jp Revision: 25-Apr-2016 60 20 6 4 10 6 48 6 16 5PSB Series PERFORMANCE ALPHA ALPHA Typical Parameters Test Condition Specification Test Data Maximum Rated Operating Temperature 25C Working Temperature Range 55C to +85C Maximum Working Current 100A 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 Atmo. Pres.: AC 750V, 1 min. 0.05% 0.01% Insulation Resistance DC 500V, 2 min. over 10,000 M over 10,000 M Low Temperature Operation 55C, Rated Power 0.1% 0.05% Overload Rated Power x 2.5, 5 sec. 0.1% 0.05% Moisture Resistance +65C to 10C, 90% RH to 98% RH, Rated Voltage, 10 cycles (240 hrs.) 0.1% 0.05% Shock 30G, 11 ms., Half-Sine Wave, X, Y, Z, 10 shocks each 0.05% 0.1% High Frequency Shock 10 Hz to 50 Hz to 10 Hz, 1 min. X, Y, Z, 2.0 hrs. each 0.05% 0.1% 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 1 V/C FREQUENCY CHARACTERISTICS TEMPERATURE OF RESISTOR SURFACE A: Elements Surface B: Bottom of Resistor (%) Screwed Down 10 m Aluminum Heat Sink 3 2 T (C) 100 mm (L) x 60 mm (W) x 60 mm (H) In Free Air 70 100 m A (4.7C/W) 1 B (4.4C/W) A (1.5C/W) 60 1 0 B (1.2C/W) 50 -1 40 30 -2 20 On Heat Sink (Rth 1C/W) -3 10 0.1 1 10 100 (kHz) 5 10 15 20 25 30 30 40 (W) Frequency Applied Power Document No.: 67010 For any questions, contact www.alpha-elec.co.jp Revision: 25-Apr-2016 sales-alpha alpha-elec.co.jp 21 R(AC)/R(DC) Temperature Rise