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      18617185077

      Cement Resistors

      Cement Resistors

      Features:
      1.Small diamension,excellent stability in high temperature,resistant to humidity and shock.

      2.Excellent insulation being used in PCB.

      3.Instant overload capability,low noise figures and low annual.

      4.Metal oxide file cutting core can offer high range resistance.

      5.Lead-free and RoHS compliant.

      Product consultation hotline:18617185077
      Product details

      Power attenuation curve and temperature rise curve:

      Electrical specifications:


      Project Items Category Style
      2W 3W 5W 7W 10W 15W 20W
      70 ℃ rated power
      Power at 70 ℃
      2W 3W 5W 7W 10W 15W 20W
      Maximum working voltage
      Maximum Working Voltage
      250V 350V 500V 500V 1000V 1000V 1000V
      Maximum load voltage
      Maximum Overload Voltage
      500V 700V 1000V 1000V 1000V 1000V 1000V
      Insulation voltage
      Dielectric Withstanding Voltage
      1000V 1000V 1000V 1000V 1000V 1000V 1000V
      Resistance range
      Value Range
      J (± 5%) 10 Ω -1M Ω 10 Ω -100K Ω 10 Ω -100K Ω 10 Ω -100K Ω 10 Ω -100K Ω 10 Ω -100K Ω 10 Ω -100K Ω
      K (± 10%) 1 Ω -22M Ω 0.2 Ω -1M Ω 0.2 Ω -1M Ω 0.2 Ω -1M Ω 0.2 Ω -1M Ω 0.2 Ω -1M Ω 0.2 Ω -1M Ω
      Operating temperature range
      Operation Temp.Range
      -55 ℃~155 ℃

      Rated Continuous Working Voltage (RCWV)=√ PR, whichever is higher than the highest working voltage

      Lesser of √ PR or maximum working voltage

      Main performance:

      Reference standard: JIS-C-5202

      project
      Items
      Standard value
      Standard
      test method
      Test Methods
      Short term overload
      Short time overload
      ± 2% 2.5 times rated voltage/5 seconds
      2.5 times RCWV/5 seconds
      Heat resistance
      Resistance to solver head
      ± 2% Soldering temperature: 350 ± 10 ℃, time: 3 seconds
      Solder Temperature: 350 ± 10 ℃, time: 3 seconds
      Voltage withstand
      Dielectric with standing voltage
      No burning or insulation damage
      No breakdown or flashover
      Apply DC voltage according to the electrical specification sheet for 1 minute continuously
      AC potential attention specifically specified in the list for 60 seconds
      temperature coefficient
      Temperature Coefficient
      MOF: ± 350 PPM/℃
      Winding: -80-900PPM/℃
      Experimental temperature: Room temperature 100 ℃
      Test temperature: Indoors Temperature. 100 ℃
      Moisture resistance load
      Humidity Load Life
      ± 5% Temperature: 40 ± 2 ℃, relative humidity: 90-95%, 1 time the rated working voltage, time 1000 hours (1.5 hours on and 0.5 hours off)
      Rated voltage 1.5hr ON, 0.5hr OFF at 40 ± 2 ℃, 90-95&RH for 1000hr
      Load life
      Load Life
      ± 5% Temperature: 70 ± 2 ℃, 1 time of rated working voltage, time 1000 hours (1.5 hours on/0.5 hours off)
      Rated voltage 1.5hr ON, 0.5hr OFF at 70 ± 2 ℃ for 1000hr
      Welding strength
      Terminal Strength
      No lead detachment
      No evidence of mechanical damage or loose terminals
      2.5 kg pulling force, lasting for 10 seconds
      2.5Kg for 10 seconds
      Solderability
      Solderability
      More than 95% of the tin eating area
      At least 95% coverage
      Soldering temperature: 235 ± 5 ℃, time: 2 ± 0.5 seconds
      235 ± 5 ℃ for 2 ± 0.5 seconds

      Part number code:

      3.jpg

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