LTO Power Resistors

Vishay / Sfernice LTO Power Resistors combine high power capability with strong thermal efficiency for demanding power electronics. Based on thick-film technology, these resistors offer excellent heat conduction, allowing for direct mounting on a heatsink and supporting continuous power ratings of 30W, 50W, 100W, and 150W. The surge performance is optimized for dynamic loads, with pulse absorption ranging from 20J/0.1s to 75J/0.1s, depending on the model. Precision laser trimming ensures stable and accurate performance across a wide resistance range from 0.01Ω to 1.3MΩ. The TO-220 and TO-247 packages are easily integrated into compact, high-power assemblies. The entire Vishay / Sfernice LTO lineup is AEC-Q200 qualified, guaranteeing automotive-grade robustness and long-term reliability. Typical applications include motor drives, snubbers and braking circuits, power conversion, and battery and energy storage.

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Resistance
Power Rating
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Temperature Coefficient
Minimum Operating Temperature
Maximum Operating Temperature
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Vishay / Sfernice Thick Film Resistors - Through Hole .047ohms 5%
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

LTO 100 47 mOhms 100 W 5 % 150 PPM / C - 55 C + 175 C 375 V 15.76 mm Radial Tube 20.7 mm 10.16 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 100 F U15 5% TU30 e3
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

LTO100 150 mOhms 100 W 5 % 150 PPM / C - 55 C + 175 C 375 V 15.76 mm Radial Tube 20.7 mm 10.16 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 100W 250 mOhms 1% TO-247
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

LTO 100 250 mOhms 100 W 1 % 150 PPM / C - 55 C + 175 C 375 V 15.76 mm Radial Tube 20.7 mm 10.16 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 100W 300 mOhms 1% TO-247
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

LTO 100 300 mOhms 100 W 1 % 150 PPM / C - 55 C + 175 C 375 V 15.76 mm Radial Tube 20.7 mm 10.16 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole 100W .33ohms 1% AEC-Q200
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

LTO100 AEC-Q200 Tube
Vishay / Sfernice Thick Film Resistors - Through Hole 100W 400 mOhms 1% TO-247
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 120
Mult.: 30

LTO 100 400 mOhms 100 W 1 % 150 PPM / C - 55 C + 175 C 375 V 15.76 mm Radial Tube 20.7 mm 0.6 mm 10.16 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 5 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 150watt H 330ohms 5% e3
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

LTO 150 330 Ohms 150 W 5 % - 55 C + 175 C 500 V 15.76 mm Radial Tube 20.7 mm 0.8 mm 10.16 mm Thick Film Resistors Clip Mount Power Resistor
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 1K5 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 1.5 kOhms 30 W 5 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 15K 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 15 kOhms 30 W 5 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 150U 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 150 Ohms 30 W 5 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 180U 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 180 Ohms 30 W 5 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 1U1 1% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 1.1 Ohms 30 W 1 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 1U2 1% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 1.2 Ohms 30 W 1 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 1U5 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 1.5 Ohms 30 W 5 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 20K 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 20 kOhms 30 W 5 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 220U 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 220 Ohms 30 W 5 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 22U 1% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 22 Ohms 30 W 1 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 27U 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 27 Ohms 30 W 5 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 3K3 1% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 3.3 kOhms 30 W 1 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 330U 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 330 Ohms 30 W 5 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 390U 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 390 Ohms 30 W 5 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 50U 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 50 Ohms 30 W 5 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 560U 1% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 560 Ohms 30 W 1 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 68U 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 68 Ohms 30 W 5 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm
Vishay / Sfernice Thick Film Resistors - Through Hole LTO 30 F 6U8 5% TU50 e3
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

LTO 30 6.8 Ohms 30 W 5 % 150 PPM / C - 55 C + 150 C 500 V 10.4 mm Radial Tube 16.2 mm 0.8 mm 5.08 mm Thick Film Resistors Leaded Power Resistor, Thick Film Technology 3.2 mm