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 (GBP) Filter the results in the table by unit price based on your quantity.
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Case Code - mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20W 2.7Kohm 5%
Datasheet
34In Stock
50Expected 18/02/2026
Min.: 1
Mult.: 1

Radial 2.7 kOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 470 OHM 5% 150PPM 20W
Datasheet
23In Stock
Min.: 1
Mult.: 1

Radial 470 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20W 56ohm 5%
Datasheet
87In Stock
Min.: 1
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Radial 56 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20W 82ohm 5%
Datasheet
40In Stock
50Expected 12/03/2026
Min.: 1
Mult.: 1

Radial 82 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 12ohm 5%
Datasheet
5In Stock
500Expected 12/02/2026
Min.: 1
Mult.: 1

Radial 12 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50wattts
Datasheet
180In Stock
Min.: 1
Mult.: 1

Radial 15 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 22ohm 5%
Datasheet
198In Stock
800Expected 05/03/2026
Min.: 1
Mult.: 1

Radial 22 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 2K7 5% TU50 e1
Datasheet
12In Stock
Min.: 1
Mult.: 1

Radial 2.7 kOhms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 2U 5% TU50 e1
Datasheet
17In Stock
50Expected 31/03/2026
Min.: 1
Mult.: 1

Radial 2 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 2.2ohm 5%
Datasheet
100In Stock
Min.: 1
Mult.: 1

Radial 2.2 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 330ohm 5%
Datasheet
72In Stock
Min.: 1
Mult.: 1

Radial 330 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 3.9ohm 5%
Datasheet
15In Stock
50Expected 18/02/2026
Min.: 1
Mult.: 1

Radial 3.9 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 4.7Kohm 5%
Datasheet
3In Stock
Min.: 1
Mult.: 1

Radial 4.7 kOhms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 47ohm 5%
Datasheet
151In Stock
500Expected 12/02/2026
Min.: 1
Mult.: 1

Radial 47 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 4.7ohm 5%
Datasheet
138In Stock
Min.: 1
Mult.: 1

Radial 4.7 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 56ohm 5%
Datasheet
33In Stock
50Expected 19/02/2026
Min.: 1
Mult.: 1

Radial 56 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 5 OHM 5% 150PPM 50W
Datasheet
12In Stock
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Radial 5 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 680ohm 5%
Datasheet
1In Stock
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Mult.: 1

Radial 680 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 6U8 1% TU50 e1
Datasheet
50In Stock
Min.: 1
Mult.: 1
Radial 6.8 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F U2 5% TU50 e1
Datasheet
33In Stock
Min.: 1
Mult.: 1

Radial 200 mOhms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 1ohm 5%
Datasheet
60In Stock
Min.: 1
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Radial 1 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 10ohms 5%
Datasheet
113In Stock
Min.: 1
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Radial 10 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 100ohms 5%
Datasheet
129In Stock
Min.: 1
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Radial 100 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 1Kohms 5%
Datasheet
203In Stock
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Radial 1 kOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 2.2ohms 5% NON-STANDARD
Datasheet
14In Stock
Min.: 1
Mult.: 1

Radial 2.2 Ohms 20 W 5 % 150 PPM / C