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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Vishay / Sfernice Thick Film Resistors - SMD RTO 20 C 2U4 5% TU50 e3
Datasheet
39May Stock
Min.: 1
Mult.: 1

SMD/SMT 2.4 Ohms 20 W 5 % 150 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 10ohms 1%
Datasheet
96May Stock
Min.: 1
Mult.: 1

Radial 10 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 30ohms 5%
Datasheet
133May Stock
Min.: 1
Mult.: 1

Radial 30 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 47U 1% TU50 e1
Datasheet
529May Stock
Min.: 1
Mult.: 1

Radial 47 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20W .02ohms 1%
Datasheet
49May Stock
Min.: 1
Mult.: 1

Radial 20 mOhms 20 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 0.1ohms 5%
Datasheet
297May Stock
Min.: 1
Mult.: 1

Radial 100 mOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 2K2 5% TU50 e3
Datasheet
36May Stock
Min.: 1
Mult.: 1

Radial 2.2 kOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 47U 10% TU50 e3
Datasheet
23May Stock
Min.: 1
Mult.: 1
Radial 47 Ohms 20 W 10 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - SMD RTO 50 C 10U 1% TU50 e1
Datasheet
13May Stock
Min.: 1
Mult.: 1

SMD/SMT 10 Ohms 50 W 1 % 150 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 4K3 5% TU50 e1
Datasheet
42May Stock
Min.: 1
Mult.: 1

Radial 4.3 kOhms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F U2 1% TU50 e3
Datasheet
45May Stock
Min.: 1
Mult.: 1

Radial 200 mOhms 20 W 1 % 250 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 15U 1% TU50 e1
Datasheet
20May Stock
Min.: 1
Mult.: 1
Radial 15 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 6U98 1% TU50 e1
Datasheet
46May Stock
Min.: 1
Mult.: 1

Radial 6.98 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 820U 10% TU50 e3
Datasheet
39May Stock
Min.: 1
Mult.: 1

Radial 820 Ohms 20 W 10 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - SMD RTO 50 C 30U 5% TU50 e1
Datasheet
35May Stock
Min.: 1
Mult.: 1

SMD/SMT 30 Ohms 50 W 5 % 150 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - SMD RTO 50 C 47U 5% TU50 e1
Datasheet
20May Stock
Min.: 1
Mult.: 1

SMD/SMT 47 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 50U 1% TU50 e1
Datasheet
47May Stock
Min.: 1
Mult.: 1

Radial 50 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 390U 5% TU50 e3
Datasheet
49May Stock
Min.: 1
Mult.: 1

Radial 390 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - SMD RTO 50 C 2U 1% TU50 e1
Datasheet
45May Stock
Min.: 1
Mult.: 1
SMD/SMT 2 Ohms 50 W 1 % 150 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - SMD RTO 50 C 2U4 5% TU50 e1
Datasheet
2May Stock
50Inaasahan 3/5/2026
Min.: 1
Mult.: 1

SMD/SMT 2.4 Ohms 50 W 5 % 150 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - SMD RTO 20 C 10U 5% TU50 e3
Datasheet
46May Stock
Min.: 1
Mult.: 1
SMD/SMT 10 Ohms 20 W 5 % 150 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 2U7 5% TU50 e3
Datasheet
55May Stock
Min.: 1
Mult.: 1

Radial 2.7 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - SMD RTO 50 C 220U 5% TU50 e1
Datasheet
36May Stock
Min.: 1
Mult.: 1
SMD/SMT 220 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 5U 1% TU50 e1
Datasheet
19May Stock
Min.: 1
Mult.: 1

Radial 5 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 6K8 5% TU50 e1
Datasheet
21May Stock
Min.: 1
Mult.: 1

Radial 6.8 kOhms 50 W 5 % 150 PPM / C