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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 3000V_RMS. 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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (KRW) Filter the results in the table by unit price based on your quantity.	Qty.	Termination Style	Resistance	Power Rating	Tolerance	Temperature Coefficient	Case Code - in	Case Code - mm
Thick Film Resistors - Through Hole 50W 10ohms 1% RTO050F10R00FTE1 Vishay / Sfernice 1: ₩31,058.8 99In Stock	Mfr. Part # RTO050F10R00FTE1 Mouser Part # 72-RTO050F10R00FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole 50W 10ohms 1% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	99In Stock	₩31,058.8 ₩22,519 ₩18,643.7 ₩18,206.9 View ₩17,107.7 Quote	Min.: 1 Mult.: 1	Radial	10 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole 50W 30ohms 5% RTO050F30R00JTE1 Vishay / Sfernice 1: ₩22,209 38In Stock 100Expected 12/22/2026	Mfr. Part # RTO050F30R00JTE1 Mouser Part # 72-RTO050F30R00JTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole 50W 30ohms 5% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	38In Stock 100Expected 12/22/2026	₩22,209 ₩15,318 ₩13,570.6 ₩13,077.4 View ₩12,330.5 ₩11,710.5 ₩11,583.6 Quote	Min.: 1 Mult.: 1	Radial	30 Ohms	50 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole 20watts 0.1ohms 5% RTO020FR1000JTE3 Vishay / Sfernice 1: ₩12,485.5 219In Stock	Mfr. Part # RTO020FR1000JTE3 Mouser Part # 72-RTO20F-R1-5	Vishay / Sfernice	Thick Film Resistors - Through Hole 20watts 0.1ohms 5% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	219In Stock	₩12,485.5 ₩9,977.1 ₩9,399.4 ₩9,385.3 View ₩8,356.6 ₩8,243.8	Min.: 1 Mult.: 1	Radial	100 mOhms	20 W	5 %	150 PPM / C
Thick Film Resistors - SMD RTO 50 C 2U 1% TU50 e1 Vishay / Sfernice RTO050C2R000FTE1 RTO050C2R000FTE1 Vishay / Sfernice 1: ₩35,878.2 50In Stock	Mfr. Part # RTO050C2R000FTE1 Mouser Part # 72-RTO050C2R000FTE1	Vishay / Sfernice	Thick Film Resistors - SMD RTO 50 C 2U 1% TU50 e1	Datasheet	50In Stock	₩35,878.2 ₩25,323.3 ₩23,519.5 ₩21,377.6 View ₩20,715.2 ₩20,546.1 Quote	Min.: 1 Mult.: 1	SMD/SMT	2 Ohms	50 W	1 %	150 PPM / C	TO-220-2 Flat Lead	TO-220-2 Flat Lead
Thick Film Resistors - SMD RTO 50 C 2U4 5% TU50 e1 Vishay / Sfernice RTO050C2R400JTE1 RTO050C2R400JTE1 Vishay / Sfernice 1: ₩25,675.6 46In Stock	Mfr. Part # RTO050C2R400JTE1 Mouser Part # 72-RTO050C2R400JTE1	Vishay / Sfernice	Thick Film Resistors - SMD RTO 50 C 2U4 5% TU50 e1	Datasheet	46In Stock	₩25,675.6 ₩17,713.6 ₩17,699.6 ₩15,684.4 View ₩14,247 ₩13,838.3 ₩13,796.1 ₩13,612.9 Quote	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
Thick Film Resistors - Through Hole RTO 50 F 22U 1% TU50 e1 RTO050F22R00FTE1 Vishay / Sfernice 1: ₩34,159 39In Stock	Mfr. Part # RTO050F22R00FTE1 Mouser Part # 72-RTO050F22R00FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 22U 1% TU50 e1	Datasheet	39In Stock	₩34,159 ₩24,111.4 ₩24,097.3 ₩22,138.5 View ₩20,362.9 ₩19,291.9 ₩19,094.7 Quote	Min.: 1 Mult.: 1	Radial	22 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 50 F 33U 1% TU50 e1 RTO050F33R00FTE1 Vishay / Sfernice 1: ₩34,159 47In Stock	Mfr. Part # RTO050F33R00FTE1 Mouser Part # 72-RTO050F33R00FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 33U 1% TU50 e1	Datasheet	47In Stock	₩34,159 ₩24,111.4 ₩24,097.3 ₩22,138.5 View ₩20,362.9 ₩19,291.9 ₩18,967.8 Quote	Min.: 1 Mult.: 1	Radial	33 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 50 F 3U3 1% TU50 e1 RTO050F3R300FTE1 Vishay / Sfernice 1: ₩34,159 34In Stock	Mfr. Part # RTO050F3R300FTE1 Mouser Part # 72-RTO050F3R300FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 3U3 1% TU50 e1	Datasheet	34In Stock	₩34,159 ₩24,111.4 ₩24,097.3 ₩22,180.8 View ₩20,362.9 ₩19,151 ₩18,883.3 Quote	Min.: 1 Mult.: 1	Radial	3.3 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 20 F 2K2 5% TU50 e3 RTO020F22000JTE3 Vishay / Sfernice 1: ₩19,151 57In Stock	Mfr. Part # RTO020F22000JTE3 Mouser Part # 72-RTO020F22000JTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 20 F 2K2 5% TU50 e3 Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	57In Stock	₩19,151 ₩14,402 ₩12,767.4 ₩11,597.7 View ₩10,864.9 ₩10,766.3 ₩10,554.9 Quote	Min.: 1 Mult.: 1	Radial	2.2 kOhms	20 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 20 F 47U 10% TU50 e3 RTO020F47R00KTE3 Vishay / Sfernice 1: ₩20,884.3 23In Stock	Mfr. Part # RTO020F47R00KTE3 Mouser Part # 72-RTO020F47R00KTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 20 F 47U 10% TU50 e3 Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	23In Stock	₩20,884.3 ₩14,402 ₩12,767.4 ₩11,597.7 View ₩11,301.8 ₩11,245.4 ₩10,935.4	Min.: 1 Mult.: 1	Radial	47 Ohms	20 W	10 %	150 PPM / C
Thick Film Resistors - SMD RTO 50 C 10U 1% TU50 e1 Vishay / Sfernice RTO050C10R00FTE1 RTO050C10R00FTE1 Vishay / Sfernice 1: ₩35,878.2 3In Stock	Mfr. Part # RTO050C10R00FTE1 Mouser Part # 72-RTO050C10R00FTE1	Vishay / Sfernice	Thick Film Resistors - SMD RTO 50 C 10U 1% TU50 e1	Datasheet	3In Stock	₩35,878.2 ₩25,323.3 ₩25,309.2 ₩23,336.4 View ₩21,377.6 ₩20,179.7 ₩19,912 Quote	Min.: 1 Mult.: 1	SMD/SMT	10 Ohms	50 W	1 %	150 PPM / C	TO-220-2 Flat Lead	TO-220-2 Flat Lead
Thick Film Resistors - Through Hole RTO 50 F 4K3 5% TU50 e1 RTO050F43000JTE1 Vishay / Sfernice 1: ₩24,435.5 38In Stock	Mfr. Part # RTO050F43000JTE1 Mouser Part # 72-RTO050F43000JTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 4K3 5% TU50 e1	Datasheet	38In Stock	₩24,435.5 ₩16,854 ₩14,937.5 ₩13,570.6 View ₩12,992.8 ₩12,908.3 ₩12,739.2 Quote	Min.: 1 Mult.: 1	Radial	4.3 kOhms	50 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 50 F 47K 1% TU50 e1 RTO050F47001FTE1 Vishay / Sfernice 1: ₩34,159 45In Stock	Mfr. Part # RTO050F47001FTE1 Mouser Part # 72-RTO050F47001FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 47K 1% TU50 e1	Datasheet	45In Stock	₩34,159 ₩24,111.4 ₩24,097.3 ₩22,138.5 View ₩20,362.9 ₩19,291.9 ₩18,967.8 Quote	Min.: 1 Mult.: 1	Radial	47 kOhms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 20 F 6K8 1% TU50 e3 RTO020F68000FTE3 Vishay / Sfernice 1: ₩29,212.7 48In Stock	Mfr. Part # RTO020F68000FTE3 Mouser Part # 72-RTO020F68000FTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 20 F 6K8 1% TU50 e3 Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	48In Stock	₩29,212.7 ₩20,630.7 ₩20,616.6 ₩19,151 View ₩17,403.6 ₩16,614.5 ₩16,473.5 ₩16,389 Quote	Min.: 1 Mult.: 1	Radial	6.8 kOhms	20 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 20 F 6U2 2% TU50 e3 RTO020F6R200GTE3 Vishay / Sfernice 1: ₩29,212.7 37In Stock	Mfr. Part # RTO020F6R200GTE3 Mouser Part # 72-RTO020F6R200GTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 20 F 6U2 2% TU50 e3 Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	37In Stock	₩29,212.7 ₩20,630.7 ₩20,616.6 ₩19,151 View ₩17,403.6 ₩16,995 ₩16,839.9 ₩16,769.5 Quote	Min.: 1 Mult.: 1	Radial	6.2 Ohms	20 W	2 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 20 F U2 1% TU50 e3 RTO020FR2000FTE3 Vishay / Sfernice 1: ₩29,212.7 23In Stock	Mfr. Part # RTO020FR2000FTE3 Mouser Part # 72-RTO020FR2000FTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 20 F U2 1% TU50 e3 Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	23In Stock	₩29,212.7 ₩20,630.7 ₩20,616.6 ₩19,151 View ₩17,403.6 ₩16,995 ₩16,839.9 ₩16,769.5 Quote	Min.: 1 Mult.: 1	Radial	200 mOhms	20 W	1 %	250 PPM / C
Thick Film Resistors - Through Hole RTO 50 F 15U 1% TU50 e1 RTO050F15R00FTE1 Vishay / Sfernice 1: ₩34,159 10In Stock	Mfr. Part # RTO050F15R00FTE1 Mouser Part # 72-RTO050F15R00FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 15U 1% TU50 e1	Datasheet	10In Stock	₩34,159 ₩24,111.4 ₩24,097.3 ₩22,138.5 View ₩20,362.9 ₩19,334.2 ₩19,179.2 Quote	Min.: 1 Mult.: 1	Radial	15 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 50 F 6U98 1% TU50 e1 RTO050F6R980FTE1 Vishay / Sfernice 1: ₩37,569.3 44In Stock	Mfr. Part # RTO050F6R980FTE1 Mouser Part # 72-RTO050F6R980FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 6U98 1% TU50 e1	Datasheet	44In Stock	₩37,569.3 ₩26,521.1 ₩26,507.1 ₩24,336.9 View ₩22,406.3 ₩21,307.1 ₩20,983 Quote	Min.: 1 Mult.: 1	Radial	6.98 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - SMD RTO 20 C 10U 5% TU50 e3 Vishay / Sfernice RTO020C10R00JTE3 RTO020C10R00JTE3 Vishay / Sfernice 1: ₩21,941.2 46In Stock	Mfr. Part # RTO020C10R00JTE3 Mouser Part # 72-RTO020C10R00JTE3	Vishay / Sfernice	Thick Film Resistors - SMD RTO 20 C 10U 5% TU50 e3 Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	46In Stock	₩21,941.2 ₩15,134.8 ₩13,415.6 ₩12,189.6 View ₩11,752.7 ₩11,625.9 ₩11,428.6 Quote	Min.: 1 Mult.: 1	SMD/SMT	10 Ohms	20 W	5 %	150 PPM / C	TO-220-2 Flat Lead	TO-220-2 Flat Lead
Thick Film Resistors - Through Hole RTO 20 F 2U7 5% TU50 e3 RTO020F2R700JTE3 Vishay / Sfernice 1: ₩20,884.3 50In Stock	Mfr. Part # RTO020F2R700JTE3 Mouser Part # 72-RTO020F2R700JTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 20 F 2U7 5% TU50 e3 Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	50In Stock	₩20,884.3 ₩14,402 ₩12,767.4 ₩11,611.8 View ₩11,259.5 ₩11,217.2 ₩10,935.4	Min.: 1 Mult.: 1	Radial	2.7 Ohms	20 W	5 %	150 PPM / C
Thick Film Resistors - SMD RTO 50 C 220U 5% TU50 e1 Vishay / Sfernice RTO050C220R0JTE1 RTO050C220R0JTE1 Vishay / Sfernice 1: ₩25,661.5 34In Stock	Mfr. Part # RTO050C220R0JTE1 Mouser Part # 72-RTO050C220R0JTE1	Vishay / Sfernice	Thick Film Resistors - SMD RTO 50 C 220U 5% TU50 e1	Datasheet	34In Stock	₩25,661.5 ₩17,713.6 ₩17,699.6 ₩15,684.4 View ₩14,247 ₩13,655.1 ₩13,598.8 ₩13,429.7 Quote	Min.: 1 Mult.: 1	SMD/SMT	220 Ohms	50 W	5 %	150 PPM / C	TO-220-2 Flat Lead	TO-220-2 Flat Lead
Thick Film Resistors - Through Hole RTO 50 F 2K7 5% TU50 e1 RTO050F27000JTE1 Vishay / Sfernice 1: ₩26,408.4 50In Stock	Mfr. Part # RTO050F27000JTE1 Mouser Part # 72-RTO050F27000JTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 2K7 5% TU50 e1	Datasheet	50In Stock	₩26,408.4 ₩18,671.9 ₩14,937.5 ₩13,711.5 View ₩13,246.5 ₩13,147.8 ₩12,978.7 Quote	Min.: 1 Mult.: 1	Radial	2.7 kOhms	50 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 50 F 2U 5% TU50 e1 RTO050F2R000JTE1 Vishay / Sfernice 1: ₩21,870.8 39In Stock 100Expected 11/10/2026	Mfr. Part # RTO050F2R000JTE1 Mouser Part # 72-RTO050F2R000JTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 2U 5% TU50 e1 Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	39In Stock 100Expected 11/10/2026	₩21,870.8 ₩16,854 ₩13,838.3 ₩13,486 View ₩12,344.6 ₩12,090.9 ₩11,752.7 Quote	Min.: 1 Mult.: 1	Radial	2 Ohms	50 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 50 F 3U 1% TU50 e1 RTO050F3R000FTE1 Vishay / Sfernice 1: ₩34,159 30In Stock	Mfr. Part # RTO050F3R000FTE1 Mouser Part # 72-RTO050F3R000FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 3U 1% TU50 e1	Datasheet	30In Stock	₩34,159 ₩24,111.4 ₩24,097.3 ₩21,969.4 View ₩20,362.9 ₩19,320.1 ₩18,996 Quote	Min.: 1 Mult.: 1	Radial	3 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole 5 OHM 1% 150PPM 50W RTO050F5R000FTE1 Vishay / Sfernice 1: ₩37,569.3 50In Stock	Mfr. Part # RTO050F5R000FTE1 Mouser Part # 72-RTO050F5R000FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole 5 OHM 1% 150PPM 50W	Datasheet	50In Stock	₩37,569.3 ₩26,521.1 ₩26,507.1 ₩23,759.1 View ₩22,364 ₩20,362.9 ₩19,179.2 Quote	Min.: 1 Mult.: 1	Radial	5 Ohms	50 W	1 %	150 PPM / C

RTO20 & RTO50 Power Resistors

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4.32 mOhms
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33 mOhms
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46 mOhms
50 mOhms
62 mOhms
68 mOhms
91 mOhms
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RTO20 & RTO50 Power Resistors

Types of Resistors

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