35W SMD TO-220 Planar Thick Film, Non-inductive Power Resistor

Technical features

1. Center temperature of the base plate: ≤25°C, rated power is 35W.

2. Packaging type: Surface - mount (SMD) TO - 220 molded package.

3. Thermal resistance: After adding a heat sink, the thermal resistance Rth < 4.28 K/W.

4. Insulation: The conductive part is insulated from the metal base plate.

 Specifications

1. Resistance range: 0.2Ω~1MΩ

2. Resistance accuracy: ±1%~±10% (±0.5% can be produced according to requirements)

3. Temperature coefficient: Can achieve up to ±50ppm/°C (25°C~105°C)

4. Rated power: Rated power is 35W at 25°C, maximum operating voltage is 350VDC

5. Dielectric withstand voltage: 1,800VAC

6. Insulation resistance: Minimum 10GΩ

7. Instantaneous overload: Twice the rated power, but not exceeding 1.5 times the maximum continuous operating voltage, for 5 consecutive seconds, ΔR≤±(0.3%R + 0.001Ω)

8. Power durability: Rated power for 2,000 hours, MIL - R - 39009, ΔR≤±(1.0%R + 0.001Ω)

9. Moisture resistance: MIL - Std - 202, method 106, ΔR≤±(0.5%R + 0.001Ω)

10. Thermal shock: MIL - Std - 202, method 107, condition F, ΔR≤±(0.3%R + 0.001Ω)

11. Terminal strength: MIL - Std - 202, method 211, condition A, tensile test 2.4 Newtons, ΔR≤±(0.2%R + 0.001Ω)

12. High - frequency vibration: MIL - Std - 202, method 204, condition D, ΔR≤±(0.2%R + 0.001Ω)

13. Operating temperature range: -55°C~+175°C

14. Lead material: Anti - oxidation tinned copper wire