RES-60-4TERM OHMITE | Alldatasheet
Document overview
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Technical content
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com48
60 Series
Four Terminal Bare Element Series Wattage Resistance Range (Ω)* Amps max. Tolerance* 610 1W 0.002-0.050 32 1% 650 5W 0.002-0.005 100 1% *Standard; others available Terminals Tinned Copper Resistive element Manganin Alloy 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 1.100" ±.010 0.040" (18AWG) 1.000" ±.010 0.081" (12AWG) 1.400" max. 0.200" ±.0150.100" (typ. to bend) 0.200" ±.010 0.100" (typ. to bend) 0.450" max. 0.250" ±.010 0.180" (typ. tinned surface)
610 Series (1 watt)
650 Series (5 watt)
10 = 1.0 50 = 5.0 Tolerance F= 1% D= 0.5% Ohm Value Example: R050= 0.05Ω Terminals P = 4 terminals RoHS Compliant 100Percent Rated Watts Ambient Temperature, ϒC 0 175 25 75 125 225 275 Stdandard part numbers Ohmic 610 Series 650 Series value 1 watt 5 watt 0.002 610FPR002E 650FPR002E 0.005 610FPR005E 650FPR005E 0.010 610FPR010E – 0.015 610FPR015E – 0.020 610FPR020E – 0.025 610FPR025E – 0.036 610FPR036E – 0.050 610FPR050E – Derating 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 ter - minal resistors. The requirement to connect to the ter - minals at precise test points is eliminated, allowing for tighter tolerancing on the end application.
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) dimenSionS SerieS SpeciFicationS characteriSticS