WLAR005FE OHMITE | Alldatasheet

Document overview

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Technical content

  • Ultra-low ohmic value series for Current Sensing applications
  • Very low inductance (<1nH at 1MHz Test)
  • Miniaturized dimensions, Better power to dimension ratios
  • Use of the highest quality stan- dard (96% Alumina) ceramic core
  • Manufacturing process–Wire winding/Spot Welding–by Computer Numerical Control (CNC) machine tools to ensure consistency of product quality.
  • Encapsulated by epoxy molding compound
  • Advanced IC encapsulation mold/die technologies D E R A T I N G Power Resistance Rating Range Dim. L Dim. D Dim. d Type (watts) (Ω) (mm/in) (mm/in) (mm/in) S P E C I F I C A T I O N S Material Ceramic Core: CeramTec Rubalit® 96% alumina End Caps: Stainless steel, preci- sion formed Leads: Copper wire, 100% Sn (Lead Free) coated CN49W alloy resistance wire TC ±20ppm/°C Encapsulation: SUMICON 1100/

1200 Epoxy molding compound

Standard Tolerance: F (1.0%), J (5.0%) Temperature Coefficient (ppm/°C): ±300ppm/°C for ≤0.03Ω ±100ppm/°C for ≥0.033Ω Maximum Working Voltage: √PxR P E R F O R M A N C E C H A R A C T E R I S T I C S Test Conditions Of Test Performance Thermal Shock Rated power applied until thermal stability, -55°C +0°C,-5°C,15min. ±2.0% Short-time Overload 5 times rated wattage for 5 seconds ±2.0% Solderability Method 208 of MIL-STD-202 ±2.0% Terminal Strength Pull test:10 pounds, 5 to10 seconds, Twist test: 1080°,5 second/rotation ±1.0% Dielectric Withstanding Voltage 500 Volts rms for 1W. 1 minute ±1.0% High Temperature Exposure Exposed to an ambient temperature of 275 +5/-0°C for 250 ±8 hours, ±5.0% Moisture Resistance MIL-STD-202 Method 106, 7b not appli- cable ±2.0% Low Temperature Storage Cold chamber at a temperature of -65 ±2°C for 24 ±4 hours ±2.0% Vibration, High Frequency Frequency varied 10 to 2000Hz, 200G peak, 2 directions 6 hours each ±1.0% Load Life 1000/2000 hours at rated power, +25°C, 1.5 hours “On”, 0.5 hours “Off” ±5.0% O R D E R I N G I N F O R M A T I O N L D0.984 / 25 d Series OhmsPower A = 0.5 B = 1 C = 2 Tolerance F = 1% J = 5% Package T = Tape blank = 25pc Pack RoHS compliant S T A N D A R D P A R T N U M B E R S F O R W L S E R I E S Wattage: 0.5 1.0 2.0 Series: WLA WLB WLC Ohms

0.005 WLAR005FE WLBR005FE

0.01 WLAR01FE WLBR01FE WLCR01FE

0.015 WLAR015FE WLBR015FE WLCR015FE

0.02 WLAR02FE WLBR02FE WLCR02FE

0.025 WLAR025FE WLBR025FE WLCR025FE

0.03 WLAR03FE WLBR03FE WLCR03FE

0.05 WLAR05FE WLBR05FE WLCR05FE

0.10 WLAR10FE WLBR10FE WLCR10FE

K E Y T O F I V E - B A N D C O D E Band 1 2 3 4 5 Color Digit Multiplier Tolerance Black 0 0 0 x 1Ω Brown 1 1 1 x 10Ω ± 1% (F) Red 2 2 2 x 100Ω ± 2% (G) Orange 3 3 3 x 1KΩ Yellow 4 4 4 x 10KΩ Green 5 5 5 x 100KΩ ± 0.5% (D) Blue 6 6 6 x 1MΩ ± 0.25% (C) Violet 7 7 7 x 10MΩ ± 0.10% (B) Grey 8 8 8 ± 0.05% White 9 9 9 x 0.001Ω Gold x 0.1Ω ± 5% (J) Silver x 0.01Ω ± 10% (K) Check product availability at www.ohmite.com To see the latest in resistor technology click on the “What’s New” tab at ohmite.com 100Percent Rated Power Ambient Temperature, °C 25 50 100 175750 125 150