Cement Wound Resistor 10W 150 Ohm

The Cement Wound Resistor 10W 150 Ohm is a wirewound power resistor with a resistance of 150 Ω and a power rating of 10 W, sealed in a ceramic cement body. The cement case insulates the winding and spreads the heat, so the resistor can carry far more power than ordinary 0.25 W or 0.5 W film resistors. It is used for loads, current limiting and capacitor discharge in power circuits and appliance repairs.

Cement Wound Resistor 10W 150 Ohm Specifications

• Resistance: 150 Ω
• Power rating: 10 W
• Type: wirewound resistor in a ceramic (cement) case, leaded
• Maximum current at 10 W: about 0.26 A (I = √(P / R))
• Maximum voltage at 10 W: about 39 V across the resistor (V = √(P × R))
• Polarity: none

Cement Wound Resistor 10W 150 Ohm Applications

• Dummy loads for testing power supplies and chargers at low current
• Bleeder resistors for discharging capacitors safely
• Current limiting in power and motor circuits
• Inrush current limiting
• Amplifier, power supply and appliance repairs

What's in the Box

• 1 × 150 Ω 10 W cement wound resistor

Tip: Check the power with P = V² / R: at 12 V this resistor draws 80 mA and dissipates about 1 W, while at 39 V it reaches the full 10 W. Cement resistors get hot near their rating, so aim for about half the rated power and keep them clear of plastic parts and wire insulation.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.