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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Qty. RoHS Termination Style
Resistance
Power Rating
Tolerance
Temperature Coefficient
Case Code - in
Case Code - mm
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 0.1ohms 5%
Datasheet
219In Stock
NT$317.63
NT$253.82
NT$239.12
NT$238.76
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Min.: 1
Mult.: 1
Radial 100 mOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 30ohms 5%
Datasheet
38In Stock
100Expected 12/22/2026
NT$565.00
NT$389.69
NT$345.24
NT$332.69
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Min.: 1
Mult.: 1
Radial 30 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 10ohms 1%
Datasheet
99In Stock
NT$790.13
NT$572.88
NT$474.30
NT$463.18
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Min.: 1
Mult.: 1
Radial 10 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 4.7ohms 5%
Datasheet
138In Stock
NT$256.69
NT$200.04
NT$199.68
NT$189.65
Min.: 1
Mult.: 1
Radial 4.7 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 180U 10% TU50 e3
Datasheet
41In Stock
NT$531.30
NT$366.39
NT$324.80
NT$295.05
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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
NT$637.41
NT$439.88
NT$439.52
NT$381.09
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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
35In Stock
NT$743.17
NT$529.15
NT$528.79
NT$450.28
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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
17In Stock
NT$869.00
NT$613.39
NT$613.04
NT$563.20
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Min.: 1
Mult.: 1
Radial 150 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 1U 1% TU50 e1
Datasheet
40In Stock
NT$869.00
NT$613.75
NT$613.04
NT$551.37
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Min.: 1
Mult.: 1
Radial 1 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 2K2 5% TU50 e3
Datasheet
57In Stock
NT$487.20
NT$366.39
NT$324.80
NT$295.05
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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
23In Stock
NT$531.30
NT$366.39
NT$324.80
NT$295.05
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Min.: 1
Mult.: 1
Radial 47 Ohms 20 W 10 % 150 PPM / C
Vishay / Sfernice RTO050C10R00FTE1
Vishay / Sfernice Thick Film Resistors - SMD RTO 50 C 10U 1% TU50 e1
Datasheet
3In Stock
NT$912.74
NT$644.22
NT$643.87
NT$593.68
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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
38In Stock
NT$621.64
NT$428.77
NT$380.01
NT$345.24
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Min.: 1
Mult.: 1
Radial 4.3 kOhms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 47K 1% TU50 e1
Datasheet
45In Stock
NT$869.00
NT$613.39
NT$613.04
NT$563.20
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Min.: 1
Mult.: 1
Radial 47 kOhms 50 W 1 % 150 PPM / C
Vishay / Sfernice RTO050C2R000FTE1
Vishay / Sfernice Thick Film Resistors - SMD RTO 50 C 2U 1% TU50 e1
Datasheet
50In Stock
NT$912.74
NT$644.22
NT$598.34
NT$543.84
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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 RTO050C2R400JTE1
Vishay / Sfernice Thick Film Resistors - SMD RTO 50 C 2U4 5% TU50 e1
Datasheet
46In Stock
NT$653.19
NT$450.63
NT$450.28
NT$399.01
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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
39In Stock
NT$869.00
NT$613.39
NT$613.04
NT$563.20
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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
NT$869.00
NT$613.39
NT$613.04
NT$563.20
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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
34In Stock
NT$869.00
NT$613.39
NT$613.04
NT$564.28
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Min.: 1
Mult.: 1
Radial 3.3 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice RTO020C10R00JTE3
Vishay / Sfernice Thick Film Resistors - SMD RTO 20 C 10U 5% TU50 e3
Datasheet
46In Stock
NT$558.18
NT$385.03
NT$341.29
NT$310.10
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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
50In Stock
NT$531.30
NT$366.39
NT$324.80
NT$295.40
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Min.: 1
Mult.: 1
Radial 2.7 Ohms 20 W 5 % 150 PPM / C
Vishay / Sfernice RTO050C220R0JTE1
Vishay / Sfernice Thick Film Resistors - SMD RTO 50 C 220U 5% TU50 e1
Datasheet
34In Stock
NT$652.83
NT$450.63
NT$450.28
NT$399.01
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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 2K7 5% TU50 e1
Datasheet
50In Stock
NT$671.83
NT$475.01
NT$380.01
NT$348.82
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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
39In Stock
100Expected 11/10/2026
NT$556.39
NT$428.77
NT$352.05
NT$343.08
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Min.: 1
Mult.: 1
Radial 2 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 50 F 3U 1% TU50 e1
Datasheet
30In Stock
NT$869.00
NT$613.39
NT$613.04
NT$558.90
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Min.: 1
Mult.: 1
Radial 3 Ohms 50 W 1 % 150 PPM / C