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 (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS Termination Style
Resistance
Power Rating
Tolerance
Temperature Coefficient
Case Code - in
Case Code - mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 2.2ohms 5% NON-STANDARD
Datasheet
49Expected 2026-03-24
Min.: 1
Mult.: 1

Radial 2.2 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 20ohms 5%
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1

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

Radial 20 kOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 2Kohms 5%
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1

Radial 2 kOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 50ohms 5%
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1

Radial 50 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 500ohms 5%
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1

Radial 500 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 50Kohms 5%
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1

Radial 50 kOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 5Kohms 5%
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1

Radial 5 kOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts .01ohms 1%
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 50
Mult.: 50

Radial 10 mOhms 20 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 0.2ohms 5%
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1

Radial 200 mOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 0.5ohms 5%
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1

Radial 500 mOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - SMD RTO 20 C 100U 1% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1
SMD/SMT 100 Ohms 20 W 1 % 150 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - SMD RTO 20 C 150U 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1
SMD/SMT 150 Ohms 20 W 5 % 150 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - SMD RTO 20 C 1U 1% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1
SMD/SMT 1 Ohms 20 W 1 % 150 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - SMD RTO 20 C 22U 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1
SMD/SMT 22 Ohms 20 W 5 % 150 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - SMD RTO 20 C 2U2 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SMD/SMT 2.2 Ohms 20 W 5 % 150 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - SMD RTO 20 C 30U 1% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1
SMD/SMT 30 Ohms 20 W 1 % 150 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - SMD RTO 20 C 500U 10% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1
SMD/SMT 500 Ohms 20 W 10 % 150 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - SMD RTO 20 C 5K1 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1
SMD/SMT 5.1 kOhms 20 W 5 % 150 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - SMD RTO 20 C U05 10% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1
SMD/SMT 50 mOhms 20 W 10 % 700 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - SMD RTO 20 C U1 1% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1
SMD/SMT 100 mOhms 20 W 1 % 250 PPM / C TO-220-2 Flat Lead TO-220-2 Flat Lead
Vishay / Sfernice Thick Film Resistors - SMD RTO 20 C U5 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1
SMD/SMT 500 mOhms 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 1K 1% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1
Radial 1 kOhms 20 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 10K 1% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1
Radial 10 kOhms 20 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 10K 10% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1
Radial 10 kOhms 20 W 10 % 150 PPM / C