RTO20 & RTO50 Power Resistors

Vishay / Sfernice RTO20 and RTO50 Power Resistors are thick film medium power resistors with energy ratings for harsh pulses up to 60J/0.1s. These power resistors provide high power for long precharge / discharge up to 150W at 45°C and high dielectric strength for protection up to 3000VRMS. RTO20 resistors feature a high power dissipation-to-size ratio, a wide resistance range from 0.01Ω to 550kΩ, heat sink mounted, and negligible inductance. The RTO50 series features a high power-to-size ratio, ohmic value adjustment by sand trimming, led or surface mount versions, and non-inductive elements. Vishay / Sfernice RTO20 and RTO50 Power Resistors' applications include AMS, industrial, and automotive uses. The RTO 20W/50W  are AEC-Q200 qualified.

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Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity.
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Resistance
Power Rating
Tolerance
Temperature Coefficient
Case Code - in
Case Code - mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 3.9ohms 5% NON-STANDARD
Datasheet
46In Stock
Min.: 1
Mult.: 1

Radial 3.9 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 330ohms 5% NON-STANDARD
Datasheet
186In Stock
Min.: 1
Mult.: 1

Radial 330 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 4.7ohms 5%
Datasheet
142In Stock
Min.: 1
Mult.: 1

Radial 4.7 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 4.7Kohms 5%
Datasheet
53In Stock
Min.: 1
Mult.: 1

Radial 4.7 kOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 5ohms 5%
Datasheet
5In Stock
50Expected 28/04/2026
Min.: 1
Mult.: 1

Radial 5 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 500Kohms 5%
Datasheet
61In Stock
Min.: 1
Mult.: 1

Radial 500 kOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50watts 1ohm 5%
Datasheet
63In Stock
Min.: 1
Mult.: 1

Radial 1 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50watts 100ohms 5%
Datasheet
84In Stock
150Expected 17/03/2026
Min.: 1
Mult.: 1

Radial 100 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50watts 10Kohms 5%
Datasheet
88In Stock
Min.: 1
Mult.: 1

Radial 10 kOhms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50watts 1Kohms 5%
Datasheet
90In Stock
Min.: 1
Mult.: 1

Radial 1 kOhms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50watts .1ohm 5%
Datasheet
5In Stock
50Expected 07/04/2026
Min.: 1
Mult.: 1

Radial 100 mOhms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F U062 1% TU50 e1
Datasheet
45In Stock
Min.: 1
Mult.: 1
Radial 62 mOhms 50 W 1 % 700 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50watts 10ohms 5%
Datasheet
1.101Expected 05/05/2026
Min.: 1
Mult.: 1

Radial 10 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 16U 1% TU50 e3
Datasheet
40Expected 23/04/2026
Min.: 1
Mult.: 1

Radial 16 Ohms 20 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - SMD RTO 50 C 100U 5% TU50 e1
Datasheet
50Expected 13/04/2026
Min.: 1
Mult.: 1

SMD/SMT 100 Ohms 50 W 5 % 150 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 16U 1% TU50 e1
Datasheet
24Expected 05/03/2026
Min.: 1
Mult.: 1

Radial 16 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 22U 1% TU50 e1
Datasheet
40Expected 02/04/2026
Min.: 1
Mult.: 1
Radial 22 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 33U 1% TU50 e1
Datasheet
47Expected 02/04/2026
Min.: 1
Mult.: 1
Radial 33 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 100ohms 5%
Datasheet
29Expected 19/03/2026
Min.: 1
Mult.: 1

Radial 100 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 680ohms 5% NON-STANDARD
Datasheet
94Expected 12/05/2026
Min.: 1
Mult.: 1

Radial 680 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50watts 1.5Kohms 5%
Datasheet
50Expected 10/03/2026
Min.: 1
Mult.: 1

Radial 1.5 kOhms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 51U 5% TU50 e1
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1
Radial 51 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 560ohms 5%
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1

Radial 560 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 5K OHM 1% 150PPM 20W
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1

Radial 5 kOhms 20 W 1 %
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 6K2 5% TU50 e3
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1
Radial 6.2 kOhms 20 W 5 % 150 PPM / C