14AFR Current Sense resistors feature a high temperature ceramic body which affords the user higher power densities than similar products which utilize silicone based epoxy molding compounds. The internal construction involves a straight, low inductance, 3-piece welded metal element at 1% tolerance. This series is stocked in 9 popular resistance values for easy accessibility. Features • Ideal for current sensing applications • 1% Tolerance standard • Fixed resistance measuring point • Low inductance • RoHS compliant Material Terminals: Solder-plated copper terminals or copper clad steel depending on ohmic value. Encapsulation: Ceramic cased body Derating: Linearly from 4W@70°C to 0W@250°C Electrical Max.Voltage: √(PxR) RMS Climatic Category: 55/200/56 TCR: Varies from +150 to +1100ppm/°C based on resistance value. TCR increases as resistance value reduces from 51 to 4milliohms. TCR is tested as per IEC Specification 115-1 Clause 4.8.4.2 Tolerance: ±1% standard. Others available. Power rating: 4W@70°C 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. Performance Characteristics Test Endurance at Rated Power Terminal Strength Solderability Resistance to Solder Heat Long Term Damp Heat Climatic Sequence Overload 14A Series S p e c i f i ca t i ons 36mm ±4 Maximum ∆R ∆R <5% Pull Strength of 50N for 10sec, IEC115-1, Clause 4.16 Test Ua1 95% Coverage as per MIL STD 202F, Test 208 -260°C for 10sec as per IEC115-1, Clause 4.18 ∆R <0.5% ∆R <5% ∆R <5% 6.40mm ±.5 0.80mm ±.05 18mm ±1 40mm Measuring Length Dimensions (in. / mm) Series Wattage Ohms Length Diam. “M” Lead 14A 4 0.004-0.051 0.709 / 18 0.252 / 6.40 1.575 / 40 0.031/0.80 o r d e r i n g i n f o r m at i o n Wattage A = Alumina Molded Body RoHS Compliant 14AFR051E 10 Series Tolerance Ohm Value F = 1% Example: R050= 0.05Ω Check product availability at www.ohmite.com StD. part numbers Condition 1000hrs Test -90-95% RH @40°C for 56 Days, IEC115-1, Clause 4.24 As per IEC 115-1, Clause 4.23 5 times rated wattage for 5 seconds Alumina Body Current Sense Ohmic value 0.004 0.005 0.008 0.010 0.015 0.022 0.033 0.047 0.051 Part Number 14AFR004E 14AFR005E 14AFR008E 14AFR010E 14AFR015E 14AFR022E 14AFR033E 14AFR047E 14AFR051E