20W Power Resistors, RTO 20 Series

The Vishay / Sfernice RTO 20 Series 20W Power Resistors utilize thick film technology and the compact and easy to mount TO-220 package. The RTO20 series features high power dissipation to size ratio, wide resistance range from 0.01Ω to 550kΩ, and negligible inductance.

Results: 150
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (CRC) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Resistance
Power Rating
Tolerance
Temperature Coefficient
Minimum Operating Temperature
Maximum Operating Temperature
Voltage Rating
Length
Termination Style
Packaging
Features
Height
Lead Diameter
Lead Spacing
Product
Type
Width
Vishay / Sfernice Thick Film Resistors - Through Hole 20W 2.7Kohm 5%
Datasheet
79In Stock
Min.: 1
Mult.: 1

RTO20F 2.7 kOhms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 470 OHM 5% 150PPM 20W
Datasheet
1In Stock
Min.: 1
Mult.: 1

RTO20F 470 Ohms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20W 56ohm 5%
Datasheet
84In Stock
Min.: 1
Mult.: 1

RTO20F 56 Ohms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20W 82ohm 5%
Datasheet
85In Stock
Min.: 1
Mult.: 1

RTO20F 82 Ohms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 1ohm 5%
Datasheet
10In Stock
Min.: 1
Mult.: 1

RTO20F 1 Ohms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 10ohms 5%
Datasheet
36In Stock
Min.: 1
Mult.: 1

RTO20F 10 Ohms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 10Kohms 5%
Datasheet
138In Stock
Min.: 1
Mult.: 1

RTO20F 10 kOhms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 2.2ohms 5% NON-STANDARD
Datasheet
15In Stock
50Expected 8/25/2026
Min.: 1
Mult.: 1

RTO20F 2.2 Ohms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 22ohms 5% NON-STANDARD
Datasheet
152In Stock
Min.: 1
Mult.: 1

RTO20F 22 Ohms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 3.9ohms 5% NON-STANDARD
Datasheet
36In Stock
Min.: 1
Mult.: 1

RTO20F 3.9 Ohms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 330ohms 5% NON-STANDARD
Datasheet
129In Stock
Min.: 1
Mult.: 1

RTO20F 330 Ohms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 4.7Kohms 5%
Datasheet
75In Stock
Min.: 1
Mult.: 1

RTO20F 4.7 kOhms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 500Kohms 5%
Datasheet
13In Stock
50Expected 10/6/2026
Min.: 1
Mult.: 1

RTO20F 500 kOhms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 680ohms 5% NON-STANDARD
Datasheet
44In Stock
100Expected 8/27/2026
Min.: 1
Mult.: 1

RTO20F 680 Ohms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F U033 1% TU50 e3
Datasheet
44In Stock
Min.: 1
Mult.: 1

RTO20F 33 mOhms 20 W 1 % 700 PPM / C - 55 C + 155 C 500 V 10.1 mm Radial Tube Non-Inductive Resistors 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20W 12ohm 5%
Datasheet
101Expected 11/3/2026
Min.: 1
Mult.: 1

RTO20F 12 Ohms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 4U7 1% TU50 e3
Datasheet
50Expected 10/15/2026
Min.: 1
Mult.: 1
RTO20F 4.7 Ohms 20 W 1 % 150 PPM / C - 55 C + 155 C 500 V 10.1 mm Radial Tube Non-Inductive Resistors 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 6K8 1% TU50 e3
Datasheet
48Expected 8/25/2026
Min.: 1
Mult.: 1
RTO20F 6.8 kOhms 20 W 1 % 150 PPM / C - 55 C + 155 C 500 V 10.1 mm Radial Tube Non-Inductive Resistors 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 560ohms 5%
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 1
Mult.: 1

RTO20F 560 Ohms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 2U7 5% TU50 e3
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 1
Mult.: 1

RTO20F 2.7 Ohms 20 W 5 % 150 PPM / C - 55 C + 155 C 500 V 10.1 mm Radial Tube Non-Inductive Resistors 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 5K OHM 1% 150PPM 20W
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 1
Mult.: 1

RTO20F 5 kOhms 20 W 1 % - 55 C + 155 C 500 V Radial Tube
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 6K2 5% TU50 e3
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 1
Mult.: 1
RTO20F 6.2 kOhms 20 W 5 % 150 PPM / C - 55 C + 155 C 500 V 10.1 mm Radial Tube Non-Inductive Resistors 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F U01 5% TU50 e3
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 1
Mult.: 1

RTO20F 10 mOhms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F U046 5% TU50 e3
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 1
Mult.: 1

RTO20F 46 mOhms 20 W 5 % 150 PPM / C - 55 C + 155 C 250 V 10.1 mm Radial Tube 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole .05 OHM 5% 150PPM 20W
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 50
Mult.: 50

RTO20F 50 mOhms 20 W 1 % 700 PPM / C - 55 C + 155 C 500 V 10.1 mm Radial Tube Non-Inductive Resistors 15 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 4.5 mm