1、Shockproof, moisture resistant, heat resistant and good heat dissipation 2、Completely insulated for printed circuit boards 3、On the porcelain rod, the wire is wound and then the joint is welded, which can produce accurate resistance value and prolong life. 4、The high resistance value is made of metal oxide film body (MO) instead of winding method, and the performance is stable. 5、Excellent heat resistance, small temperature coefficient of resistance. Features: 1. Shockproof, moisture resistant, heat resistant and good heat dissipation 2. Completely insulated for printed circuit boards 3. On the porcelain rod, the wire is wound and then the joint is welded, which can produce accurate resistance value and prolong life.  4. The high resistance value is made of metal oxide film body (MO) instead of winding method, and the performance is stable. 5. Excellent heat resistance, small temperature coefficient of resistance. 6. Short-time overload, low noise, no change in resistance over the years. 7. Explosion-proof performance can protect the cement resistor   Specification: Condition: 100% Brand new Item Type: Cement Resistor Accuracy: ±5% Power: 20W Package Size: Approx. 20 x 10 x 3cm / 7.9 x 3.9 x 1.2in Optional Style: 1R, 1.5R, 2R, 2.2R, 3R, 5R, 8R, 10R, 12R, 15R, 20R, 30R, 50R, 100R, 120R, 150R, 1KR, 2KR, 3KR, 10KR   Package List: 10 x Cement Resistor