Metal-film power resistor
Ohmite
Made-to-Order Part Numbers
Download Datasheet (PDF)
Through-Bolt "Dead" Mounting Brackets (PDF)
250 Series
'Thin' Stackohm® Vitreous Enamel Power Resistors
Series Wattage Ohms Dimensions (in. / mm) Max. Voltage*
Length L Length A
F10 10 1.0-15K 0.750 / 19.050 1.000 / 25.400 187
F20 20 1.0-50K 2.000 / 50.800 2.313 / 58.750 815
F30 30 1.0-10K 1.250 / 31.750 2.000 / 50.800 281
F40 40 1.0-25K 2.000 / 50.800 2.750 / 69.850 655
F55 55 1.0-30K 3.500 / 88.900 4.250 / 107.950 1405
Adjustable versions & Other sizes available -- Consult factory.
Other sizes available. Consult factory.
Also available in low-cost Centohm coating; Consult factory.
* Maximum Voltage is based on Ohm's Law [V=] as limited by the resistance value of specified product
When limited space is a consideration, choose Ohmite's "thin" stackable 250 Type resistors. These oval-shaped ceramic-core resistors feature a low profile to permit installation in spaces with height restrictions. They are also equipped with integral mounting brackets so they can be fastened to a chassis and stacked in locations with limited surface area.
When properly fastened, the mounting brackets add a heat sinking benefit resulting in a smaller size per watt. Durable 250 Type resistors are fully welded and coated with lead free vitreous enamel.
Note: When resistors are stacked, use washers or spacers as required to insure clearance and improve power dissipation.
Standard part numbers and availability
Made-to-Order Part Numbers
Download Datasheet (PDF)
Through-Bolt "Dead" Mounting Brackets (PDF)
250 Series
'Thin' Stackohm® Vitreous Enamel Power Resistors
Series Wattage Ohms Dimensions (in. / mm) Max. Voltage*
Length L Length A
F10 10 1.0-15K 0.750 / 19.050 1.000 / 25.400 187
F20 20 1.0-50K 2.000 / 50.800 2.313 / 58.750 815
F30 30 1.0-10K 1.250 / 31.750 2.000 / 50.800 281
F40 40 1.0-25K 2.000 / 50.800 2.750 / 69.850 655
F55 55 1.0-30K 3.500 / 88.900 4.250 / 107.950 1405
Adjustable versions & Other sizes available -- Consult factory.
Other sizes available. Consult factory.
Also available in low-cost Centohm coating; Consult factory.
* Maximum Voltage is based on Ohm's Law [V=] as limited by the resistance value of specified product
When limited space is a consideration, choose Ohmite's "thin" stackable 250 Type resistors. These oval-shaped ceramic-core resistors feature a low profile to permit installation in spaces with height restrictions. They are also equipped with integral mounting brackets so they can be fastened to a chassis and stacked in locations with limited surface area.
When properly fastened, the mounting brackets add a heat sinking benefit resulting in a smaller size per watt. Durable 250 Type resistors are fully welded and coated with lead free vitreous enamel.
Note: When resistors are stacked, use washers or spacers as required to insure clearance and improve power dissipation.
Standard part numbers and availability
Made-to-Order Part Numbers
Download Datasheet (PDF)
Through-Bolt "Dead" Mounting Brackets (PDF)
250 Series
'Thin' Stackohm® Vitreous Enamel Power Resistors
Series Wattage Ohms Dimensions (in. / mm) Max. Voltage*
Length L Length A
F10 10 1.0-15K 0.750 / 19.050 1.000 / 25.400 187
F20 20 1.0-50K 2.000 / 50.800 2.313 / 58.750 815
F30 30 1.0-10K 1.250 / 31.750 2.000 / 50.800 281
F40 40 1.0-25K 2.000 / 50.800 2.750 / 69.850 655
F55 55 1.0-30K 3.500 / 88.900 4.250 / 107.950 1405
Adjustable versions & Other sizes available -- Consult factory.
Other sizes available. Consult factory.
Also available in low-cost Centohm coating; Consult factory.
* Maximum Voltage is based on Ohm's Law [V=] as limited by the resistance value of specified product
When limited space is a consideration, choose Ohmite's "thin" stackable 250 Type resistors. These oval-shaped ceramic-core resistors feature a low profile to permit installation in spaces with height restrictions. They are also equipped with integral mounting brackets so they can be fastened to a chassis and stacked in locations with limited surface area.
When properly fastened, the mounting brackets add a heat sinking benefit resulting in a smaller size per watt. Durable 250 Type resistors are fully welded and coated with lead free vitreous enamel.
Note: When resistors are stacked, use washers or spacers as required to insure clearance and improve power dissipation.
10 Series Axial Wire Element Current Sense
20 Series Vitreous Enamel Conformal Axial
200 Series Vitreous Enamel Power
210 Series Vitreous Enamel Adjustable Power
250 Series Oval Core Fixed
270 Series Tubular Fixed
280 Series Corrib® Hi-Current, Fixed and Adjustable
40 Series Silicone-Ceramic Conformal
60 Series Metal Element Current Sense
60 Series Four Terminal Bare Element
80 Series Silicone-Ceramic Conformal
89 Series Axial Terminal Wirewound Aluminum Housed
90 Series Molded Vitreous Enamel
Audio Gold Resistors Audio applications
Axiohm® Series Centohm Coated Wirewound
CS3 Series Precision Current Sense
G Series Capacitor Discharge & Symmetry
High Energy Wirewound 30 Series and Various Constructions
HS/HSN Series Aluminum Housed Axial Wirewound
Metalohm Series Wirewound Radial Terminal
PC-58 Series Tubular Radial Terminal
P Series Epoxy Molded Precision Wirewound
HPW Series High Precision Welded Axial and Radial
HSP Series Hermetically Sealed Precision
Resistor Hardware For 200, 210, and 270 series
WFH Series Wirewound Power
WH/WN Series Miniature Molded Wirewound
WL Series Miniature Wirewound Current Sense
Core and Terminal Selection For Type 200, 270, 400 and 470 Tubular Resistors
Core and Terminal Selection For Type 250 Tubular Resistors
Core and Terminal Selection For Type 280 Tubular Resistors
Terminals for Tubular Cores Application Notes
Through-Bolt "Dead" Mounting Brackets Application Notes
-
zoom
