Material Terminals: Solder-plated copper terminals or copper clad steel depending on ohmic value. RoHS solder composition is 96% Sn, 3.5% Ag, 0.5% Cu Encapsulation: Silicone molding compound. Derating Linearly from 100% @ +25°C to 0% @ +275°C. Electrical Tolerance: ±1% standard. Others available. Power rating: Based on 25°C free air rating. Overload: 5 times rated wattage for 5 seconds. Dielectric withstanding voltage: 1000 VRMS for 3 and 5 watt; 500 VRMS for 2 watt. Insulation resistance: Not less than 1000MΩ. Thermal EMF: Less than ±2µV/°C. Temperature range: -55°C to 275°C. 700 Temperature Coefficient of Resistance • Ideal for current sensing applications • 1% Tolerance standard, others available • Fixed resistance measuring point “M” • Low inductance (non-inductive below 0.25Ω) • RoHS compliant product available; add “E” suffix to part number to specify 2 watt 3 watt 5 watt F eat u r es • Ideal for current sensing applications • 1% Tolerance standard, others available • Low Inductance (non-inductive below 0.25Ω) • Tinned Copper Leads • RoHS Compliant S p ec i f i cat i o n s Material Terminals: Tinned Copper Leads Encapsulation: Silicone Molding Compound Derating Linearly from 100% at +25˚C to 0% at +200˚C Electrical Resistance Range: 0.005Ω to 0.100Ω standard Standard Tolerance: ±1%; others available Operating Temperature Range: -55˚C to +200˚C Temperature Coefficient of Resistance, 0˚C to 85˚C: ≥0.015Ω: ±50 PPM/˚C <0.015Ω: ±100 PPM/˚C 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 Max. Current: 22 amps Dialectric withstanding voltage: 1500 VAC for 4.5 and 7 watt 1000 VAC for 3 watt Insulation resistance: Not less than 1000 MΩ Thermal EMF: Less than ±2µV/˚C Axial Wire Element Current Sense L max. Ohmite’s Four-terminal Current-sense Resistors are specifically designed for low-resistance applications requiring the highest accuracy and temperature stability. This four-terminal version of Ohmite’s 10 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. o r d e r i n g i n f o r m at i o n Wattage Terminals Blank = 2 terminals P = 4 terminals RoHS Compliant Tolerance Ohm Value F = 1% Example: D= 0.5% R050= 0.05 Check product availability at www.ohmite.com 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected]