TO-220, TO-247 Power ResisTors

TO-220, TO-247 Power Resistors RMG series are ultra precision and high power resistors encapsulated in the TO-220/TO-247 style power package. Power resistors are manufactured in 20W, 30W, 35W, 50W and 100W. Resistance element is electrically insulated from metal heat sink mounting tab. When properly mounted DIRECT's RMG** TO-220/TO-247 packaged power resistors provide up to 50/100 watts of steady state power. These very low inductance resistors are ideal for many industrial applications: power supplies, power controls and inrush/bleeder resistors.

DIRECT thin film power resistors are manufactured by depositing continuous and defect free metallic films conferring long-term stability, very low TCR, very low current noise and negligible non-linearity.

DIRECT thin film power resistors are price competitive while outperforming the thick film power resistors currently used in high power applications. For more info as how thin film resistors compare with thick film resistors, see FCR,RCA,RCN.

TO-220, TO-247 POWER RESISTORS - Download Entire TO-220, TO-247 Power Resistor Catalogue.
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(RMG20) TO-220 Heat Sink Resistor for power supplies
Providing design engineers with superior heat dissipation in a standard industry-recognised package, Direct Electronics has introduced a TO220-style power resistor using a highly reliable, economical copper thick film. TO-220 Power Resistors RMG20 Series, 20 Watt at 25°C Case Temperature Heat Sink Mounted. TO-220 Style Power Package. Molded Case for Protection and Easy to Mount. Isolated Case. Non Inductive.
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(RMG30) TO-220 Power Film as snubber or bleeder resistor
A wide range of TO-style power film resistors that are designed for use in power electronic circuits such as snubbers, current limiting, loads, current sensing and other power resistor applications, is available from Direct Components. TO-220 Power Resistors RMG30 Series, Applications for Gate Resistors in Power Supplies, Snubbers, Load and Dumping Resistors in CRT Monitors, Terminal Resistance in RF Power Amplifiers, Voltage Regulation, Low Energy Pulse Loading, UPS, etc..
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(RMG35) TO-220 Power Film Resistor for high-power equipments
The RMG35 Series resistors feature thermally enhanced two-leaded industry standard packages designed for mounting directly to a heatsink. TO-220 Power Resistors RMG35 Series, 35 Watt at 25°C Case Temperature Heat Sink Mounted. TO-220 Style Power Package. Single Screw Mounting to Heat Sink. Low Thermal Resistance to Heat Sink at Rth < 4.28°C/W. Molded Case for Protection and Easy to Mount. Isolated Case. Non Inductive.
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(RMG50) low-profile, direct-mounting Power TO-220 Resistors
TO-220 Power Resistors RMG50 Series, 50 Watt at 25°C Case Temperature Heat Sink Mounted. TO-220 Style Power Package. Molded Case for Protection and Easy to Mount. Isolated Case. Low ohm value. The chimney-shaped tapered venturi is attached to the ceramic substrate and convection forces hot air up the 'neck' of the chimney and away from the resistor face of the component.
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(RMG100) Power TO-247 Resistor for pulse-loading applications
The resistors are specified for applications that require accuracy and stability. The RMG100 Series resistors are designed with an alumina ceramic layer that separates the resistance element and mounting tab. TO-247 style power package TO-247 power resistors RMG100 series, 100 Watts at 25°C case temperature heat sink mounted. Single M3 screw mounting to heat sink. Molded case for protection and easy to mount. Non-inductive design.
Download (RMG100) PDF