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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 (CLP) 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: $17.955 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	$17.955 $12.384 $10.971 $10.572 View $9.969 $9.467 $9.365 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: $25.110 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	$25.110 $18.206 $15.073 $14.719 View $13.831 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: $10.094 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	$10.094 $8.066 $7.599 $7.588 View $6.756 $6.665	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: $15.483 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	$15.483 $11.643 $10.322 $9.376 View $8.784 $8.704 $8.533 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: $16.884 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	$16.884 $11.643 $10.322 $9.376 View $9.137 $9.091 $8.841	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: $29.006 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	$29.006 $20.473 $20.461 $18.866 View $17.283 $16.314 $16.098 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: $19.755 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	$19.755 $13.626 $12.076 $10.971 View $10.504 $10.436 $10.299 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: $27.616 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	$27.616 $19.493 $19.482 $17.898 View $16.463 $15.597 $15.335 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: $16.884 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	$16.884 $11.643 $10.322 $9.376 View $8.989 $8.921 $8.772 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: $20.256 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	$20.256 $13.979 $13.968 $12.111 View $11.256 $10.481 $10.333 $10.140 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: $23.617 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	$23.617 $16.816 $16.804 $14.309 View $13.956 $13.808 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: $27.616 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	$27.616 $19.493 $19.482 $17.898 View $16.463 $15.597 $15.369 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: $27.616 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	$27.616 $19.504 $19.482 $17.522 View $16.463 $15.460 $15.209 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: $16.884 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	$16.884 $11.643 $10.322 $9.410 View $9.137 $9.091 $8.852 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: $20.746 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	$20.746 $14.309 $12.680 $11.518 View $11.119 $11.005 $10.835 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: $20.746 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	$20.746 $14.309 $12.680 $11.518 View $11.040 $10.971 $10.789 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: $30.373 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	$30.373 $21.441 $21.430 $19.915 View $18.114 $17.101 $16.975 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: $23.617 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	$23.617 $16.679 $16.668 $15.483 View $14.070 $13.352 $13.170 $13.159 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: $20.758 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	$20.758 $14.321 $14.309 $12.680 View $11.518 $11.005 $10.960 $10.789 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: $27.616 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	$27.616 $19.493 $19.482 $17.522 View $16.463 $15.380 $15.130 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: $19.755 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	$19.755 $13.626 $12.076 $10.971 View $10.550 $10.516 $10.345 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: $17.739 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	$17.739 $12.236 $10.846 $9.855 View $9.502 $9.399 $9.240 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: $16.884 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	$16.884 $11.643 $10.322 $9.388 View $9.103 $9.069 $8.841	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: $20.746 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	$20.746 $14.321 $14.309 $12.680 View $11.518 $11.040 $10.994 $10.857 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: $21.350 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	$21.350 $15.095 $12.076 $11.085 View $10.709 $10.629 $10.493 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
10 mOhms
15 mOhms
20 mOhms
25 mOhms
33 mOhms
40 mOhms
46 mOhms
50 mOhms
62 mOhms
68 mOhms
91 mOhms
95 mOhms
100 mOhms
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200 mOhms
220 mOhms
270 mOhms

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RTO20 & RTO50 Power Resistors

Types of Resistors

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