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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 (USD) 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: $28.65 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	$28.65 $20.77 $18.79 $17.07 View $15.83 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: $20.49 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	$20.49 $14.14 $14.13 $12.52 View $11.58 $11.32 $11.19 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: $11.52 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	$11.52 $9.20 $8.67 $8.66 View $7.71 $7.61	Min.: 1 Mult.: 1	Radial	100 mOhms	20 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 20 F 6K8 1% TU50 e3 RTO020F68000FTE3 Vishay / Sfernice 1: $26.95 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	$26.95 $19.03 $19.02 $17.67 View $16.06 $15.05 $14.91 $14.90 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: $26.95 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	$26.95 $19.03 $19.02 $17.67 View $16.06 $15.68 $15.54 $15.47 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: $26.95 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	$26.95 $19.03 $19.02 $17.67 View $16.06 $15.68 $15.54 $15.47 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: $31.51 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	$31.51 $22.24 $20.54 $18.79 View $17.90 $17.76 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: $34.66 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	$34.66 $24.47 $24.45 $22.54 View $20.67 $19.58 $19.42 Quote	Min.: 1 Mult.: 1	Radial	6.98 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - SMD RTO 50 C 2U 1% TU50 e1 Vishay / Sfernice RTO050C2R000FTE1 RTO050C2R000FTE1 Vishay / Sfernice 1: $33.10 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	$33.10 $23.36 $21.70 $19.72 View $19.11 $18.95 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: $23.69 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	$23.69 $16.34 $16.33 $14.47 View $13.14 $12.77 $12.73 $12.56 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: $31.51 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	$31.51 $22.24 $20.54 $18.79 View $17.82 $17.68 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: $31.51 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	$31.51 $22.24 $22.23 $20.66 View $18.79 $17.80 $17.50 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: $31.51 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	$31.51 $22.26 $22.23 $20.57 View $18.79 $17.65 $17.47 Quote	Min.: 1 Mult.: 1	Radial	3.3 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: $20.24 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	$20.24 $13.98 $13.96 $12.38 View $11.25 $10.84 $10.73 $10.54 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 - SMD RTO 50 C 220U 5% TU50 e1 Vishay / Sfernice RTO050C220R0JTE1 RTO050C220R0JTE1 Vishay / Sfernice 1: $23.69 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	$23.69 $16.34 $16.33 $14.47 View $13.14 $12.60 $12.55 $12.39 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: $24.36 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	$24.36 $17.23 $13.78 $12.73 View $12.45 $12.42 $12.26 Quote	Min.: 1 Mult.: 1	Radial	2.7 kOhms	50 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 50 F 3U 1% TU50 e1 RTO050F3R000FTE1 Vishay / Sfernice 1: $31.51 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	$31.51 $22.26 $22.23 $20.55 View $18.79 $17.82 $17.52 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: $34.66 50In Stock	Mfr. Part # RTO050F5R000FTE1 Mouser Part # 72-RTO050F5R000FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole 5 OHM 1% 150PPM 50W	Datasheet	50In Stock	$34.66 $24.47 $24.45 $21.92 View $20.63 $18.79 $17.69 Quote	Min.: 1 Mult.: 1	Radial	5 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 50 F 6K8 5% TU50 e1 RTO050F68000JTE1 Vishay / Sfernice 1: $22.54 17In Stock	Mfr. Part # RTO050F68000JTE1 Mouser Part # 72-RTO050F68000JTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 6K8 5% TU50 e1	Datasheet	17In Stock	$22.54 $15.56 $15.55 $13.78 View $12.52 $11.84 $11.80 $11.62 Quote	Min.: 1 Mult.: 1	Radial	6.8 kOhms	50 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole 20watts 0.05ohms 5% RTO020FR0500JTE3 Vishay / Sfernice 1: $25.44 44In Stock	Mfr. Part # RTO020FR0500JTE3 Mouser Part # 72-RTO20F-R05-5	Vishay / Sfernice	Thick Film Resistors - Through Hole 20watts 0.05ohms 5% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	44In Stock	$25.44 $17.56 $17.55 $15.55 View $14.13 $13.61 $13.57 $13.39 Quote	Min.: 1 Mult.: 1	Radial	500 mOhms	20 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 20 F 2K2 5% TU50 e3 RTO020F22000JTE3 Vishay / Sfernice 1: $17.67 60In 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	60In Stock	$17.67 $13.30 $13.29 $11.78 View $10.70 $10.02 $9.93 $9.74 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: $19.27 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	$19.27 $13.30 $13.29 $11.78 View $10.70 $10.48 $10.45 $10.31 Quote	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: $33.10 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	$33.10 $23.37 $23.35 $21.70 View $19.72 $18.62 $18.37 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: $22.54 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	$22.54 $15.56 $15.55 $13.78 View $12.52 $11.99 $11.91 $11.75 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: $31.51 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	$31.51 $22.26 $22.23 $20.54 View $18.79 $17.69 $17.52 Quote	Min.: 1 Mult.: 1	Radial	47 kOhms	50 W	1 %	150 PPM / C

RTO20 & RTO50 Power Resistors

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4.32 mOhms
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15 mOhms
20 mOhms
25 mOhms
33 mOhms
40 mOhms
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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