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 50W 10ohms 1% 99May Stock
₱1,352.15
₱980.37
₱811.66
₱792.64
Min.: 1
Mult.: 1
Radial 10 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 50W 30ohms 5% 38May Stock
100Inaasahan 12/22/2026
₱966.88
₱666.87
₱590.80
₱569.33
Min.: 1
Mult.: 1
Radial 30 Ohms 50 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 20watts 0.1ohms 5% 219May Stock
₱543.56
₱434.36
₱409.20
₱408.59
Min.: 1
Mult.: 1
Radial 100 mOhms 20 W 5 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - SMD RTO 50 C 2U 1% TU50 e1 50May Stock
₱1,561.97
₱1,102.46
₱1,023.93
₱930.68
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 46May Stock
₱1,117.80
₱771.17
₱770.56
₱682.83
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 39May Stock
₱1,487.12
₱1,049.70
₱1,049.09
₱963.81
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 47May Stock
₱1,487.12
₱1,049.70
₱1,049.09
₱963.81
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 34May Stock
₱1,487.12
₱1,049.70
₱1,049.09
₱965.65
Min.: 1
Mult.: 1
Radial 3.3 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 2K2 5% TU50 e3 57May Stock
₱833.75
₱627.00
₱555.83
₱504.91
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 23May Stock
₱909.21
₱627.00
₱555.83
₱504.91
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 3May Stock
₱1,561.97
₱1,102.46
₱1,101.85
₱1,015.96
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 38May Stock
₱1,063.81
₱733.75
₱650.31
₱590.80
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 45May Stock
₱1,487.12
₱1,049.70
₱1,049.09
₱963.81
Min.: 1
Mult.: 1
Radial 47 kOhms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 6K8 1% TU50 e3 48May Stock
₱1,271.79
₱898.16
₱897.55
₱833.75
Min.: 1
Mult.: 1
Radial 6.8 kOhms 20 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole RTO 20 F 6U2 2% TU50 e3 37May Stock
₱1,271.79
₱898.16
₱897.55
₱833.75
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 23May Stock
₱1,271.79
₱898.16
₱897.55
₱833.75
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 10May Stock
₱1,487.12
₱1,049.70
₱1,049.09
₱963.81
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 44May Stock
₱1,635.59
₱1,154.61
₱1,153.99
₱1,059.51
Min.: 1
Mult.: 1
Radial 6.98 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - SMD RTO 20 C 10U 5% TU50 e3 46May Stock
₱955.22
₱658.90
₱584.05
₱530.68
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 50May Stock
₱909.21
₱627.00
₱555.83
₱505.52
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 34May Stock
₱1,117.18
₱771.17
₱770.56
₱682.83
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 50May Stock
₱1,149.70
₱812.89
₱650.31
₱596.94
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 39May Stock
100Inaasahan 11/10/2026
₱952.15
₱733.75
₱602.46
₱587.12
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 30May Stock
₱1,487.12
₱1,049.70
₱1,049.09
₱956.45
Min.: 1
Mult.: 1
Radial 3 Ohms 50 W 1 % 150 PPM / C
Vishay / Sfernice Thick Film Resistors - Through Hole 5 OHM 1% 150PPM 50W 50May Stock
₱1,635.59
₱1,154.61
₱1,153.99
₱1,034.36
Min.: 1
Mult.: 1
Radial 5 Ohms 50 W 1 % 150 PPM / C