Ohmite TGH Series — 120 and 200 Watt SOT227 Package | Thick Film Power:

Due to their non-inductive design, these resistors are ideally suited for high-frequency and pulse-load applications. Available in 120- or 200-watt sizes, this resistor is designed for direct mounting onto a heatsink. Popular applications include variable speed drives, power supplies, control devices, telecom, robotics, motor controls, and other switching designs.

Series Features:

Heat Sink Nickel-plated copper

Contacts Nickel-plated copper

Substrate Al203 (96%)

Molding Compound High-performance epoxy, compliant to UL94-V0

Terminal Nuts American standard 303 stainless steel

Resistance Range 0.1Ω to 1MΩ

Tolerance ±5%; other tolerances available on request

Temperature coefficient: ±250ppm (at +105°C ref. to +25°C)

Max. Working Voltage 500V (1000V, not to exceed rated wattage using √P*R.)

Power Rating at 85°C 120W (see derating)

Partial Discharge up to 2,000Vrms/80 pC

Voltage Proof Dielectric Strength up to 4,000V DC against ground

Heat Resistance to Cooling Plate Rth <0.35 K/W

Capacitance/Mass 45pF

Working Temp. Range -55°C to +155°C

Max. Torque for Base Plate (static) 1.5 Nm

Max. Torque for Contacts (static) 1.3 Nm. M4 screws (not included)

Derating (thermal resistance) 2.86W/°K (0.35°K/W)