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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Resistance
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Tolerance
Temperature Coefficient
Case Code - in
Case Code - mm
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 180U 10% TU50 e3
Datasheet
46In Stock
Min.: 1
Mult.: 1

Radial 180 Ohms 20 W 10 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F U068 5% TU50 e3
Datasheet
47In Stock
Min.: 1
Mult.: 1

Radial 680 mOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F U12 1% TU50 e3
Datasheet
40In Stock
Min.: 1
Mult.: 1

Radial 120 mOhms 20 W 1 %
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 150U 1% TU50 e1
Datasheet
20In Stock
Min.: 1
Mult.: 1
Radial 150 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 47U 1% TU50 e1
Datasheet
29In Stock
Min.: 1
Mult.: 1

Radial 47 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 10Kohms 5%
Datasheet
138In Stock
Min.: 1
Mult.: 1

Radial 10 kOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 16U 1% TU50 e3
Datasheet
77In Stock
50Expected 8/6/2026
Min.: 1
Mult.: 1

Radial 16 Ohms 20 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 390U 5% TU50 e3
Datasheet
49In 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
50In 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
46In Stock
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 - Through Hole RTO 50 F 22U 1% TU50 e1
Datasheet
40In Stock
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
47In Stock
Min.: 1
Mult.: 1
Radial 33 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 3U3 1% TU50 e1
Datasheet
50In Stock
Min.: 1
Mult.: 1
Radial 3.3 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 6U2 2% TU50 e3
Datasheet
49In Stock
Min.: 1
Mult.: 1
Radial 6.2 Ohms 20 W 2 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F U2 1% TU50 e3
Datasheet
35In 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
20In 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
44In Stock
Min.: 1
Mult.: 1

Radial 6.98 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 4.7ohms 5%
Datasheet
138In Stock
Min.: 1
Mult.: 1

Radial 4.7 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50watts 10Kohms 5%
Datasheet
88In Stock
Min.: 1
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Radial 10 kOhms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 2.2ohm 5%
Datasheet
99In Stock
Min.: 1
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Radial 2.2 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 470ohms 5%
Datasheet
459In Stock
Min.: 1
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Radial 470 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20W 1ohm 1%
Datasheet
52In Stock
Min.: 1
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Radial 1 Ohms 20 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20W 2ohms 1%
Datasheet
24In Stock
Min.: 1
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Radial 2 Ohms 20 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20W 330ohms 1%
Datasheet
97In Stock
Min.: 1
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Radial 330 Ohms 20 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20W .015ohms 1%
Datasheet
12In Stock
Min.: 1
Mult.: 1

Radial 15 mOhms 20 W 1 % 150 PPM / C