120W SOT-227 Planar Thick Film with French Blue Baseplate, Non-inductive Power Resistor

Technical Features

1. Rated Power: When the center temperature of the base plate is ≤85°C, the rated power of a single - resistor structure is 120W.

2. Packaging Type: SOT227 molded package, M4 - screw flange - base - plate packaging.

3. Number and Structure of Terminals: There are 4 terminals, providing six internal structure forms.

Specifications

1. Resistance Range: 0.1Ω~1MΩ

2. Accuracy Range: ±1%~±10%

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

4. Rated Power: Rated power is 120W at 85°C, and the maximum operating voltage does not exceed 500VDC (can be up to 1000VDC according to customer requirements).

5. Partial Discharge: According to customer requirements.

6. Dielectric Withstand Voltage: 4 kVDC, higher requirements can be negotiated for supply.

7. Distributed Capacitance: 45pF

8. Power Durability: Rated power for 1,000 hours, base plate temperature at 85°C, ΔR≤±(1.0%R + 0.001Ω)

9. Moisture Resistance: 56 days/40°C, RH≥95%, ΔR≤±(0.25%R + 0.001Ω)

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

11. High - Frequency Vibration: MIL - Std - 202, method 204, condition D, ΔR≤±(0.2%R + 0.001Ω)

12. Operating Temperature Range: -55°C~+155°C

13. Resistor Installation: M4 screws, maximum torque 1.5Nn.

14. Terminal Installation: M4 screws, maximum torque 1.3Nn.

This type of resistor is mainly applied in variable - speed drives, power supply, control equipment, communications, automatic control, engine control, and other fields.