KP290~298 Power Wire-Wound Resistors

 


  1. Product Overview
    KP290~298 is a radial-leaded, power wire-wound resistor family built on a glass-fiber core and finished with a high-grade silicone coating. The distinctive green or grey surface marking guarantees fast visual identification. Designed for continuous high-power dissipation, the series covers 2 W to 8 W in a single compact footprint line-up, making it the first choice for industrial motor drives, power supplies, welding equipment, UPS systems and white-goods inrush limiting.
  2. Key Features
    • High overload capability: glass-fiber core + silicone coating withstands 275 °C
    • Wide resistance span: 1 Ω – 9.1 kΩ in one series
    • Precision options: ±5 % (J) or ±10 % (K)
    • Excellent long-term stability: ΔR ≤ ±(5 %R + 0.1 Ω) after 1 000 h at 70 °C
    • Fully RoHS & REACH compliant, halogen-free coating
    • Flame-retardant coating to UL 94 V-0
  3. Mechanical Dimensions
Part NumberRated Power @70 °CResistance RangeL (mm)RM (mm)
KP2900/12 W1 Ω – 2.2 kΩ18.210.2
KP2920/14 W1 Ω – 3.3 kΩ23.315.2
KP2940/15 W1 Ω – 5.1 kΩ33.425.4
KP2960/16.5 W1 Ω – 7.5 kΩ43.535.4
KP2980/18 W1 Ω – 9.1 kΩ53.745.7
Tolerance on dimensions: ±1 mm.
  1. Electrical & Environmental Specifications
Test ItemSpecification
Resistance Tolerance±5 % (J) or ±10 % (K)
Temperature Coefficient±250 ppm/°C
Operating Temperature Range–55 °C … +275 °C
Climatic Category55 / 155 / 21 (IEC 60068-1)
Load Life1 000 h @70 °C, ΔR ≤ ±(5 %R + 0.1 Ω)
Damp Heat, Steady State40 °C / 93 % RH, 21 days, ΔR same as above
Terminal Tensile StrengthΔR ≤ ±(1 %R + 0.05 Ω)
Solder Heat Resistance350 °C, 3.5 s, ΔR ≤ ±(1 %R + 0.05 Ω)
SolderabilityIEC 68-2-20, 235 °C ±5 °C, 2 ±0.5 s
Derating Curve:
100 % rated power at 70 °C, linearly derating to 0 % at 275 °C.
  1. Part Number Construction
    KP 29 X 0 / 1 – R Value – Tolerance
    Example: KP2980/1-1K0-J = 8 W, 1 kΩ, ±5 %.
  2. Packaging & Ordering Information
    • Bulk, 500 pcs / bag (≤5 W) or 250 pcs / bag (>5 W)
    • Tape-and-reel on request (Ammopack)
    • Lead (Pb)-free, RoHS, REACH, halogen-free
    • Minimum Order Quantity: 1 000 pcs
https://www.eak.sg/product/kp290298-power-wire-wound-resistors/

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