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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 (GBP) 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 RTO 20 F 47U 10% TU50 e3 RTO020F47R00KTE3 Vishay / Sfernice 1: £11.13 23In Stock	Mfr. Part No. RTO020F47R00KTE3 Mouser Part No 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	£11.13 £7.68 £7.67 £6.80 View £6.18 £6.05 £6.03 £5.95 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: £19.12 3In Stock	Mfr. Part No. RTO050C10R00FTE1 Mouser Part No 72-RTO050C10R00FTE1	Vishay / Sfernice	Thick Film Resistors - SMD RTO 50 C 10U 1% TU50 e1	Datasheet	3In Stock	£19.12 £13.50 £13.49 £12.53 View £11.39 £10.76 £10.61 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: £13.02 38In Stock	Mfr. Part No. RTO050F43000JTE1 Mouser Part No 72-RTO050F43000JTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 4K3 5% TU50 e1	Datasheet	38In Stock	£13.02 £8.98 £7.96 £7.23 View £6.92 £6.88 £6.78 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: £18.20 45In Stock	Mfr. Part No. RTO050F47001FTE1 Mouser Part No 72-RTO050F47001FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 47K 1% TU50 e1	Datasheet	45In Stock	£18.20 £12.85 £12.84 £11.86 View £10.85 £10.21 £10.12 £10.07 Quote	Min.: 1 Mult.: 1	Radial	47 kOhms	50 W	1 %	150 PPM / C
Thick Film Resistors - SMD RTO 20 C 10U 5% TU50 e3 Vishay / Sfernice RTO020C10R00JTE3 RTO020C10R00JTE3 Vishay / Sfernice 1: £11.69 46In Stock	Mfr. Part No. RTO020C10R00JTE3 Mouser Part No 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	£11.69 £8.08 £8.07 £7.15 View £6.50 £6.26 £6.20 £6.08 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: £13.68 34In Stock	Mfr. Part No. RTO050C220R0JTE1 Mouser Part No 72-RTO050C220R0JTE1	Vishay / Sfernice	Thick Film Resistors - SMD RTO 50 C 220U 5% TU50 e1	Datasheet	34In Stock	£13.68 £9.44 £9.43 £8.35 View £7.59 £7.27 £7.25 £7.16 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: £14.07 50In Stock	Mfr. Part No. RTO050F27000JTE1 Mouser Part No 72-RTO050F27000JTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 2K7 5% TU50 e1	Datasheet	50In Stock	£14.07 £9.95 £7.96 £7.35 View £7.19 £7.17 £7.08 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: £18.20 30In Stock	Mfr. Part No. RTO050F3R000FTE1 Mouser Part No 72-RTO050F3R000FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 3U 1% TU50 e1	Datasheet	30In Stock	£18.20 £12.85 £12.84 £11.87 View £10.85 £10.29 £10.12 £10.01 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: £20.02 50In Stock	Mfr. Part No. RTO050F5R000FTE1 Mouser Part No 72-RTO050F5R000FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole 5 OHM 1% 150PPM 50W	Datasheet	50In Stock	£20.02 £14.13 £12.66 £11.92 View £10.85 £10.24	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: £13.02 17In Stock	Mfr. Part No. RTO050F68000JTE1 Mouser Part No 72-RTO050F68000JTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 50 F 6K8 5% TU50 e1	Datasheet	17In Stock	£13.02 £8.98 £7.96 £7.23 View £6.84 £6.82 £6.71 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: £14.69 44In Stock	Mfr. Part No. RTO020FR0500JTE3 Mouser Part No 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	£14.69 £10.14 £8.98 £8.16 View £7.86 £7.84 £7.73 Quote	Min.: 1 Mult.: 1	Radial	500 mOhms	20 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole 20watts 4.7ohms 5% RTO020F4R700JTE3 Vishay / Sfernice 1: £5.38 138In Stock	Mfr. Part No. RTO020F4R700JTE3 Mouser Part No 72-RTO20F-4.7-5	Vishay / Sfernice	Thick Film Resistors - Through Hole 20watts 4.7ohms 5% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	138In Stock	£5.38 £4.39	Min.: 1 Mult.: 1	Radial	4.7 Ohms	20 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole 20W .015ohms 1% RTO020FR0150FTE3 Vishay / Sfernice 1: £17.65 98In Stock	Mfr. Part No. RTO020FR0150FTE3 Mouser Part No 72-RTO020FR0150FTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole 20W .015ohms 1% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	98In Stock	£17.65 £15.03 £14.46 £12.95 View £12.41 £12.26 £11.24 Quote	Min.: 1 Mult.: 1	Radial	15 mOhms	20 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole 50W 1.5ohms 1% RTO050F1R500FTE1 Vishay / Sfernice 1: £11.32 156In Stock	Mfr. Part No. RTO050F1R500FTE1 Mouser Part No 72-RTO050F1R500FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole 50W 1.5ohms 1% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	156In Stock	£11.32 £9.44 £9.43 £9.31 View £8.63 £8.47	Min.: 1 Mult.: 1	Radial	1.5 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole RTO 20 F 16U 1% TU50 e3 RTO020F16R00FTE3 Vishay / Sfernice 1: £15.57 127In Stock	Mfr. Part No. RTO020F16R00FTE3 Mouser Part No 72-RTO020F16R00FTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole RTO 20 F 16U 1% TU50 e3 Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	127In Stock	£15.57 £10.99 £10.98 £10.21 View £9.27 £9.05 £8.97 £8.93 Quote	Min.: 1 Mult.: 1	Radial	16 Ohms	20 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole 20W 1ohm 1% RTO020F1R000FTE3 Vishay / Sfernice 1: £11.96 52In Stock	Mfr. Part No. RTO020F1R000FTE3 Mouser Part No 72-RTO020F1R000FTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole 20W 1ohm 1% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	52In Stock	£11.96 £10.00 £9.56 £9.27 View £8.97 £8.42 £7.90 £7.79 Quote	Min.: 1 Mult.: 1	Radial	1 Ohms	20 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole 20W 2ohms 1% RTO020F2R000FTE3 Vishay / Sfernice 1: £10.77 24In Stock	Mfr. Part No. RTO020F2R000FTE3 Mouser Part No 72-RTO020F2R000FTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole 20W 2ohms 1% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	24In Stock	£10.77 £10.47 £8.53 £8.28 View £8.08 £7.89 £7.77 £7.70 Quote	Min.: 1 Mult.: 1	Radial	2 Ohms	20 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole 20W 330ohms 1% RTO020F330R0FTE3 Vishay / Sfernice 1: £10.16 97In Stock	Mfr. Part No. RTO020F330R0FTE3 Mouser Part No 72-RTO020F330R0FTE3	Vishay / Sfernice	Thick Film Resistors - Through Hole 20W 330ohms 1% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	97In Stock	£10.16 £8.40 £8.39 £8.20 View £7.38 £7.26 £7.23	Min.: 1 Mult.: 1	Radial	330 Ohms	20 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole 50W 20Kohms 1% RTO050F20001FTE1 Vishay / Sfernice 1: £11.61 13In Stock	Mfr. Part No. RTO050F20001FTE1 Mouser Part No 72-RTO050F20001FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole 50W 20Kohms 1% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	13In Stock	£11.61 £9.70 £9.69 £9.41 View £8.59 £8.47	Min.: 1 Mult.: 1	Radial	20 kOhms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole 50W 8ohms 1% RTO050F8R000FTE1 Vishay / Sfernice 1: £13.05 42In Stock	Mfr. Part No. RTO050F8R000FTE1 Mouser Part No 72-RTO050F8R000FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole 50W 8ohms 1% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	42In Stock	£13.05 £10.98 £10.51 £10.50 View £10.41 £9.79 £9.66 Quote	Min.: 1 Mult.: 1	Radial	8 Ohms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole 50W .15ohms 5% RTO050FR1500JTE1 Vishay / Sfernice 1: £8.23 68In Stock	Mfr. Part No. RTO050FR1500JTE1 Mouser Part No 72-RTO050FR1500JTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole 50W .15ohms 5% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	68In Stock	£8.23 £6.70 £6.35 £6.34 View £5.81 £5.71 £5.64	Min.: 1 Mult.: 1	Radial	150 mOhms	50 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole 50W .5ohms 1% RTO050FR5000FTE1 Vishay / Sfernice 1: £13.01 68In Stock	Mfr. Part No. RTO050FR5000FTE1 Mouser Part No 72-RTO050FR5000FTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole 50W .5ohms 1% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	68In Stock	£13.01 £10.95 £10.48 £10.29 View £10.24 £9.69 £9.31	Min.: 1 Mult.: 1	Radial	500 mOhms	50 W	1 %	150 PPM / C
Thick Film Resistors - Through Hole 20W 200ohms 5% RTO020F200R0JTE3 Vishay / Sfernice 1: £7.28 57In Stock	Mfr. Part No. RTO020F200R0JTE3 Mouser Part No 72-RTO20F-200-5	Vishay / Sfernice	Thick Film Resistors - Through Hole 20W 200ohms 5% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	57In Stock	£7.28 £5.87 £5.86 £5.45 £5.31	Min.: 1 Mult.: 1	Radial	200 Ohms	20 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole 50W 12ohm 5% RTO050F12R00JTE1 Vishay / Sfernice 1: £8.34 898In Stock 1,250On Order	Mfr. Part No. RTO050F12R00JTE1 Mouser Part No 72-RTO050F12R00JTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole 50W 12ohm 5% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	898In Stock 1,250On Order On Order Ship Dates Mfr. No: RTO050F12R00JTE1 Stock: 898 Can Dispatch Immediately On Order: 250 Pending 1,000 Expected 12/11/2026 Factory Lead Time: 12 Weeks	£8.34 £6.77 £6.40 £5.98 View £5.84 £5.23 Quote	Min.: 1 Mult.: 1	Radial	12 Ohms	50 W	5 %	150 PPM / C
Thick Film Resistors - Through Hole 50W 22ohm 5% RTO050F22R00JTE1 Vishay / Sfernice 1: £9.19 762In Stock	Mfr. Part No. RTO050F22R00JTE1 Mouser Part No 72-RTO050F22R00JTE1	Vishay / Sfernice	Thick Film Resistors - Through Hole 50W 22ohm 5% Learn More about Vishay / Sfernice vishay sfernice rto20 50 power resistors	Datasheet	762In Stock	£9.19 £7.09 £6.92 £6.07 View £5.44 £5.17 Quote	Min.: 1 Mult.: 1	Radial	22 Ohms	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
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RTO20 & RTO50 Power Resistors

Types of Resistors

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