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 - Through Hole RTO 20 F U12 1% TU50 e3
Datasheet
40May 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
20May Stock
Min.: 1
Mult.: 1
Radial 150 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F U2 1% TU50 e3
Datasheet
35May Stock
Min.: 1
Mult.: 1

Radial 200 mOhms 20 W 1 % 250 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 10ohms 1%
Datasheet
11May Stock
100Inaasahan 7/23/2026
Min.: 1
Mult.: 1

Radial 10 Ohms 50 W 1 % 150 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 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 2U4 5% TU50 e1
Datasheet
48May 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
40May 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
47May Stock
Min.: 1
Mult.: 1
Radial 33 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 4.7ohms 5%
Datasheet
139May Stock
Min.: 1
Mult.: 1

Radial 4.7 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 330ohms 5% NON-STANDARD
Datasheet
176May Stock
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Mult.: 1

Radial 330 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 2.2ohm 5%
Datasheet
99May Stock
Min.: 1
Mult.: 1

Radial 2.2 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50watts 10Kohms 5%
Datasheet
88May Stock
Min.: 1
Mult.: 1

Radial 10 kOhms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 470ohms 5%
Datasheet
491May Stock
Min.: 1
Mult.: 1

Radial 470 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20W 1ohm 1%
Datasheet
26May Stock
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Mult.: 1

Radial 1 Ohms 20 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20W 2ohms 1%
Datasheet
24May Stock
Min.: 1
Mult.: 1

Radial 2 Ohms 20 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20W 330ohms 1%
Datasheet
97May Stock
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Mult.: 1

Radial 330 Ohms 20 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20W .015ohms 1%
Datasheet
22May Stock
Min.: 1
Mult.: 1

Radial 15 mOhms 20 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20W .1ohms 1%
Datasheet
25May Stock
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Mult.: 1

Radial 100 mOhms 20 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 1.5ohms 5%
Datasheet
82May Stock
Min.: 1
Mult.: 1

Radial 1.5 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 20Kohms 1%
Datasheet
18May Stock
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Radial 20 kOhms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 8ohms 1%
Datasheet
42May Stock
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Radial 8 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W .15ohms 5%
Datasheet
68May Stock
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Mult.: 1

Radial 150 mOhms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W .5ohms 1%
Datasheet
72May Stock
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Mult.: 1

Radial 500 mOhms 50 W 1 % 150 PPM / C