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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 30ohms 5% RTO050F30R00JTE1 Vishay / Sfernice 1: $15.76 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	$15.76 $10.87 $9.63 $9.28 View $8.75 $8.31 $8.22 Quote	Min.: 1 Mult.: 1	Radial	30 Ohms	50 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole 50W 10ohms 1% RTO050F10R00FTE1 Vishay / Sfernice 1: $22.04 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	$22.04 $15.98 $13.23 $12.92 View $12.14 Quote	Min.: 1 Mult.: 1	Radial	10 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole 20watts 0.1ohms 5% RTO020FR1000JTE3 Vishay / Sfernice 1: $8.86 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	$8.86 $7.08 $6.67 $6.66 View $5.93 $5.85	Min.: 1 Mult.: 1	Radial	100 mOhms	20 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 20 F 2K2 5% TU50 e3 RTO020F22000JTE3 Vishay / Sfernice 1: $13.59 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	$13.59 $10.22 $9.06 $8.23 View $7.71 $7.64 $7.49 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: $14.82 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	$14.82 $10.22 $9.06 $8.23 View $8.02 $7.98 $7.76	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: $25.46 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	$25.46 $17.97 $17.96 $16.56 View $15.17 $14.32 $14.13 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: $17.34 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	$17.34 $11.96 $10.60 $9.63 View $9.22 $9.16 $9.04 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: $24.24 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	$24.24 $17.11 $17.10 $15.71 View $14.45 $13.69 $13.46 Quote	Min.: 1 Mult.: 1	Radial	47 kOhms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 20 F 180U 10% TU50 e3 RTO020F180R0KTE3 Vishay / Sfernice 1: $14.82 41In Stock	Mfr. Part # RTO020F180R0KTE3 Mouser Part # 72-RTO020F180R0KTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 20 F 180U 10% TU50 e3 Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	41In Stock	$14.82 $10.22 $9.06 $8.23 View $7.89 $7.83 $7.70 Quote	Min.: 1 Mult.: 1	Radial	180 Ohms	20 W	10 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 20 F U068 5% TU50 e3 RTO020FR0680JTE3 Vishay / Sfernice 1: $17.78 47In Stock	Mfr. Part # RTO020FR0680JTE3 Mouser Part # 72-RTO020FR0680JTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 20 F U068 5% TU50 e3 Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	47In Stock	$17.78 $12.27 $12.26 $10.63 View $9.88 $9.20 $9.07 $8.90 Quote	Min.: 1 Mult.: 1	Radial	680 mOhms	20 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 20 F U12 1% TU50 e3 RTO020FR1200FTE3 Vishay / Sfernice 1: $20.73 35In Stock	Mfr. Part # RTO020FR1200FTE3 Mouser Part # 72-RTO020FR1200FTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 20 F U12 1% TU50 e3 Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	35In Stock	$20.73 $14.76 $14.75 $12.56 View $12.25 $12.12 Quote	Min.: 1 Mult.: 1	Radial	120 mOhms	20 W	1 %
Thick Film Resistors - Through Hole RTO 50 F 150U 1% TU50 e1 RTO050F150R0FTE1 Vishay / Sfernice 1: $24.24 17In Stock	Mfr. Part # RTO050F150R0FTE1 Mouser Part # 72-RTO050F150R0FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 150U 1% TU50 e1	Datasheet	17In Stock	$24.24 $17.11 $17.10 $15.71 View $14.45 $13.69 $13.49 Quote	Min.: 1 Mult.: 1	Radial	150 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 50 F 1U 1% TU50 e1 RTO050F1R000FTE1 Vishay / Sfernice 1: $24.24 40In Stock	Mfr. Part # RTO050F1R000FTE1 Mouser Part # 72-RTO050F1R000FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 1U 1% TU50 e1	Datasheet	40In Stock	$24.24 $17.12 $17.10 $15.38 View $14.45 $13.57 $13.35 Quote	Min.: 1 Mult.: 1	Radial	1 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 20 F 820U 10% TU50 e3 RTO020F820R0KTE3 Vishay / Sfernice 1: $14.82 39In Stock	Mfr. Part # RTO020F820R0KTE3 Mouser Part # 72-RTO020F820R0KTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 20 F 820U 10% TU50 e3 Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	39In Stock	$14.82 $10.22 $9.06 $8.26 View $8.02 $7.98 $7.77 Quote	Min.: 1 Mult.: 1	Radial	820 Ohms	20 W	10 %	150 PPM / C
Thick Film Resistors - SMD RTO 50 C 30U 5% TU50 e1 Vishay / Sfernice RTO050C30R00JTE1 RTO050C30R00JTE1 Vishay / Sfernice 1: $18.21 32In Stock	Mfr. Part # RTO050C30R00JTE1 Mouser Part # 72-RTO050C30R00JTE1	Vishay / Sfernice	Thick Film Resistors - SMD RTO 50 C 30U 5% TU50 e1	Datasheet	32In Stock	$18.21 $12.56 $11.13 $10.11 View $9.76 $9.66 $9.51 Quote	Min.: 1 Mult.: 1	SMD/SMT	30 Ohms	50 W	5 %	150 PPM / C	TO-220-2 Flat Lead	TO-220-2 Flat Lead
Thick Film Resistors - SMD RTO 50 C 47U 5% TU50 e1 Vishay / Sfernice RTO050C47R00JTE1 RTO050C47R00JTE1 Vishay / Sfernice 1: $18.21 20In Stock	Mfr. Part # RTO050C47R00JTE1 Mouser Part # 72-RTO050C47R00JTE1	Vishay / Sfernice	Thick Film Resistors - SMD RTO 50 C 47U 5% TU50 e1	Datasheet	20In Stock	$18.21 $12.56 $11.13 $10.11 View $9.69 $9.63 $9.47 Quote	Min.: 1 Mult.: 1	SMD/SMT	47 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 50U 1% TU50 e1 RTO050F50R00FTE1 Vishay / Sfernice 1: $26.66 26In Stock	Mfr. Part # RTO050F50R00FTE1 Mouser Part # 72-RTO050F50R00FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 50U 1% TU50 e1	Datasheet	26In Stock	$26.66 $18.82 $18.81 $17.48 View $15.90 $15.01 $14.90 Quote	Min.: 1 Mult.: 1	Radial	50 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 20 F 4U7 1% TU50 e3 RTO020F4R700FTE3 Vishay / Sfernice 1: $20.73 50In Stock	Mfr. Part # RTO020F4R700FTE3 Mouser Part # 72-RTO020F4R700FTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 20 F 4U7 1% TU50 e3 Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	50In Stock	$20.73 $14.64 $14.63 $13.59 View $12.35 $11.72 $11.56 $11.55 Quote	Min.: 1 Mult.: 1	Radial	4.7 Ohms	20 W	1 %	150 PPM / C
Thick Film Resistors - SMD RTO 50 C 100U 5% TU50 e1 Vishay / Sfernice RTO050C100R0JTE1 RTO050C100R0JTE1 Vishay / Sfernice 1: $18.22 47In Stock	Mfr. Part # RTO050C100R0JTE1 Mouser Part # 72-RTO050C100R0JTE1	Vishay / Sfernice	Thick Film Resistors - SMD RTO 50 C 100U 5% TU50 e1	Datasheet	47In Stock	$18.22 $12.57 $12.56 $11.13 View $10.11 $9.66 $9.62 $9.47 Quote	Min.: 1 Mult.: 1	SMD/SMT	100 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 16U 1% TU50 e1 RTO050F16R00FTE1 Vishay / Sfernice 1: $24.24 17In Stock 50Expected 12/31/2026	Mfr. Part # RTO050F16R00FTE1 Mouser Part # 72-RTO050F16R00FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 16U 1% TU50 e1	Datasheet	17In Stock 50Expected 12/31/2026	$24.24 $17.11 $17.10 $15.38 View $14.45 $13.50 $13.28 Quote	Min.: 1 Mult.: 1	Radial	16 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 50 F 47K 5% TU50 e1 RTO050F47001JTE1 Vishay / Sfernice 1: $17.34 45In Stock	Mfr. Part # RTO050F47001JTE1 Mouser Part # 72-RTO050F47001JTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 47K 5% TU50 e1	Datasheet	45In Stock	$17.34 $11.96 $10.60 $9.63 View $9.26 $9.23 $9.08 Quote	Min.: 1 Mult.: 1	Radial	47 kOhms	50 W	5 %	150 PPM / C
Thick Film Resistors - SMD RTO 20 C 10U 5% TU50 e3 Vishay / Sfernice RTO020C10R00JTE3 RTO020C10R00JTE3 Vishay / Sfernice 1: $15.57 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	$15.57 $10.74 $9.52 $8.65 View $8.34 $8.25 $8.11 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: $14.82 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	$14.82 $10.22 $9.06 $8.24 View $7.99 $7.96 $7.76	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: $18.21 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	$18.21 $12.57 $12.56 $11.13 View $10.11 $9.69 $9.65 $9.53 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: $18.74 20In Stock	Mfr. Part # RTO050F27000JTE1 Mouser Part # 72-RTO050F27000JTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 2K7 5% TU50 e1	Datasheet	20In Stock	$18.74 $13.25 $10.60 $9.73 View $9.40 $9.33 $9.21 Quote	Min.: 1 Mult.: 1	Radial	2.7 kOhms	50 W	5 %	150 PPM / C

RTO20 & RTO50 Power Resistors

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

Types of Resistors

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