610FPR005E

Ohmite’s Four Terminal Bare Element Resistors provide ultra low resistance values (to 0.0005Ω) for relatively high current requirements, with the advantages of a Kelvin configuration and PC Board mounting capability. These shunt resistors are specifically designed for low resistance applications requiring the highest accuracy and temperature stability. This Four Terminal version of Ohmite’s 60 Series Resistor is specially designed for use in a Kelvin configuration, in which a current is applied through two opposite terminals and sensing voltage is measured across the other two terminals. The Kelvin configuration enables the resistance and temperature coefficient of the terminals to be effectively eliminated. The four terminal design also results in a lower Temperature Coefficient of Resistance and lower self heating drift which may be experienced on two terminal resistors. The requirement to connect to the terminals at precise test points is eliminated, allowing for tighter tolerancing on the end application. 100 Percent Rated Watts 80 60 40 20 0 0 25 75 125 175 225 275 FEATURES • Ideal for current sensing applications • 1% tolerance standard, others available • Low inductance (non-inductive below 0.05Ω) • RoHS compliant • Radial, self-supporting, design is ideal for PC board mounting • High Power-to-size ratio • Decimal marked, silicone coated (650 Series only) Four Terminal Bare Element 610 Series (1 watt) 0.100" (typ. to bend) 0.200" ±.015 0.200" ±.010 650 Series (5 watt) 60 Series 1.100" ±.010 0.040" (18AWG) SPECIFICATIONS Material Terminals: Tinned Copper Resistive element: Manganin Alloy Electrical Operating Temperature Range: -55˚C to +275˚C. Temperature Coefficient of Resistance, 0˚C to 85˚C: ±50 PPM/˚C, .015Ω and higher ±100 PPM/˚C, .015Ω and lower Environmental Performance: Exceeds the requirements of MIL-PRF-49465 Power rating: Based on 25˚C free air rating Overload: 5 times rated wattage for 5 seconds Thermal EMF: Less than ±3µV/˚C Derating: Linearly from 100% @ +25°C to 0% @ 275°C 1.400" max. 0.450" max. 0.100" (typ. to bend) 0.250" ±.010 0.180" (typ. tinned surface) 1.000" ±.010 0.081" (12AWG) Series Wattage Resistance Range (Ω)* Amps max. Tolerance* 610 1W 0.002-0.050 650 5W 0.002-0.005 *Standard; others available 32 100 1% 1% O R D E R I N G I N F O R M AT I O N Terminals Blank = 2 terminals P = 4 terminals RoHS Compliant STD. PART NUMBERS Ohmic value 0.002 0.005 0.010 0.015 0.020 0.025 0.036 0.050 610 Series 1 watt 610FPR002E 610FPR005E 610FPR010E 610FPR015E 610FPR020E 610FPR025E 610FPR036E 610FPR050E 650 Series 5 watt 650FPR002E 650FPR005E – – – – – – 610FPR050E 60 Series Ambient Temperature, °C Tolerance Ohm Value F = 1% Example: Wattage D = 0.5% R050= 0.05Ω 10 = 1.0 50 = 5.0 Check product availability at www.ohmite.com Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 19