100W TO-247 Planar Alloy Foil, Non-inductive Power Resistor

External dimensions：The resistor chip uses alloy foil resistor material, suitable for low - resistance value range, with low temperature coefficient and strong pulse tolerance, suitable for current sampling circuits and other aspects.

Technical features

The center temperature of the base plate is ≤25°C, and the rated power is 100W.

Standard TO - 247 molded package with exposed ceramic substrates.

Installed with M3 screws and matched with special - purpose mounting spring plates, overcoming the weakness of insufficient mechanical strength of the molded - pressed resistor body, making the pressure of the fixing screws directly act on the center of the resistor body, and enhancing the thermal conductivity of the resistor.

It has extremely strong pulse load - carrying capacity and can withstand the following test conditions: E - function pulse, f = 8Hz, time constant = 15μs, single - pulse energy E = 10J.

Specifications

Resistance range: 0.005Ω~1Ω (Other resistance values can be negotiated and ordered)

Resistance accuracy: ±5%~±10%

Rated power: Rated power is 100W at 25°C, maximum operating voltage is 700VDC

Dielectric withstand voltage: 1,800VAC

Insulation resistance: Minimum 10GΩ

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)

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

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

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

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

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

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

Lead material: Anti - oxidation tinned copper wire

Maximum torque for M3 screws: 0.9Nm