Thick Film Power Resistors
What is a Thick Film Resistor?
Thick film resistors are produced by applying a resistive film or paste, a mixture of glass and conductive materials, to a substrate. Thick film power resistor technology allows high resistance values to be printed on a cylindrical or flat substrate either covered entirely or in various patterns. They also can be printed in a serpentine design to eliminate inductance, which is preferred in applications with steady frequencies. Once applied, the resistance is adjusted using a laser or abrasive trimmer.
Thick Film Construction
We offer over 20 different series in Thick Film construction. Thick Film parts can be chosen based on mounting, application, and voltage range. They are easily integrated into a heatsinkable package for high wattage application. High values can be obtained and High Voltage can be applied to thick film products with little change in resistance value.
ALN Series
Ohmite's ALN series thick film chips offer 3.5 watts of power dissipation in a 2512 package size.
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TX Series
The TX series is the first thermistor released by Ohmite. The TX series is avaiable in 3 sizes (0402,0603, and 0805).
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AMC Series
The Ohmite AMC series of thick film chips are compliant with AEC-Q200 specifications.
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ARCOL AP725 Series
The ARCOL AP725 provides power dissipation up to 20 watts with a proper heatsink.
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ARCOL AP830 Series
A high power TO-220 style resistor package designed for high frequency emitter circuits in switching power supplies.
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ARCOL AP836 Series
A high power TO-220 style resistor package designed for high frequency emitter circuits in switching power supplies.
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ARCOL AP851 Series
A high power TO-220 style resistor package designed for high frequency emitter circuits in switching power supplies.
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ARCOL ARC2 Series
Resistors for voltage dividers, medical measuring equipment, electrostatic & current-limiting devices where high stability, low TCR, & high ohmic values are required.
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ARCOL ARC3 Series
We offer resistors for voltage dividers, medical measuring equipment, electrostatic, and current limiting devices where high stability, low TCR, & high ohmic values are required.
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ARCOL FPA600 Series
600 Watt resistor designed for various applications including power transmission, traction, variable speed drives, power supplies, robotics, motor control and power control devices.
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ARCOL L4T Series
The L4T Series, brought to you by ARCOL, boasts a TCR of 75PPM with 50PPM available.
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ARCOL TFBR Series
The TFBR series provides high power density in a low profile package.
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AS Series
Following the IEC 61000-4-5, Ohmite's AS Series Anti-surge Thick Film Chip Resistor can withstand voltages of 5KV and single-pulse power up to 4KW depending on duration and size.
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HVC Series
Ohmite’s High Voltage HVC Series incorporates high accuracy screen printing technology to achieve high voltage capability in a stable wraparound SMD chip resistor package.
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HVF Series
Ohmite’s High Voltage Flip Chip Series incorporates high accuracy screen printing technology to achieve high voltage capability in a stable flip chip SMD chip resistor package.
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IS Series Resistor
The Ohmite IS series offers up to 270 watts in a heatsinkable design. Thick film construction provides low inductance.
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Low Wattage Mini-Mox Series
The Mini-Mox resistor is very versatile, covering a wide resistance range as well as a wide range of operating voltages.
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MacroChip Series
Ohmite’s MacroChip resistors bring precision high voltage capabilities to surface mount applications.
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Maxi-Mox Series
Ohmite's Maxi-Mox resistors are versatile with wide resistance ranges and tolerances.
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MC1RD Series
Ohmite’s MC1RD resistors bring precision high voltage capabilities to surface mount applications.
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MC4 Series
Ohmite’s MC4 Series offers 4 high voltage SMD resistors in a single DIP package, supplied on tape and reel for automated placement.
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MEV Series
The Ohmite MEV series of Metal film MELF resistors are AEC-Q200 compliant.
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MMV Series
The Ohmite MMV series of thick film chips are AEC-Q200 compliant.
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Mini Macro Chip Series
Ohmite offers the Mini Macro Chip (MMC) series in Thick Film construction for High Voltage applications.
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Mini-Mox Series
Ohmite's Mini-Mox resistor is very versatile, covering a wide resistance range as well as a wide range of operating voltages.
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MOX700 series
When precision and stability are required, look for the MOX700 series from Ohmite.
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Power-Mox Series
The heavy-duty construction of the Power-Mox series makes them durable in most high voltage industrial applications.
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RX-1M Hi-Meg
These Hi-Meg resistors are designed for use in electrometer circuits where a high order of performance is required.
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TA Series
Ohmite’s original Power Chip resistors feature our thick film on alumina substrate technology.
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TAH20 Series
Ohmite’s TAH20 TO220 package resistor provides 20W of steady-state power when properly used in today’s well-defined heat sink applications.
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TAP1000 & 2000 Series
The TAP series delivers 1000W or 2000W of continuous power when properly mounted to a liquid cooled heat sink (based on 85°C mounting plate temperature).
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TAP650 Series
Ohmite’s TAP650 delivers 650 watts of reliable power to a variety of power conditioning, power transmission, and power control applications.
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TAP600 Series
Ohmite’s TAP600 delivers 600 watts of reliable power to a variety of power conditioning, power transmission, and power control applications.
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TAP800 Series
Ohmite’s TAP800 Series dissipates 800 watts of power when used with a liquid or air-cooled heat sink system.
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TBH25 Series
Ohmite’s TBH25 TO220 package resistor provides 25W of steady-state power when properly used in today’s well-defined heat sink applications.
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TCH35 Series
Ohmite’s TCH35 TO220 package resistor provides 35W of steady-state power when properly used in today’s well-defined heat sink applications.
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TDH35 Series
Designed from the TCH35 series, the TDH35 is a surfacemount device capable of high wattage dissipation with the proper heatsink and thermal considerations.
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TDH50 Series
The TDH50 is a D2PAK surfacemount device capable of high wattage dissipation with the proper heatsink and thermal considerations.
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TEH100 100 Watt
Ohmite offers the totally encapsulated and insulated TO-247 package for low ohmic value and non-inductive design for high-frequency and pulsing applications.
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TEH140
The Ohmite TEH140 series is a high-wattage multiple construction TO-247 power resistor.
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TFS Series
The TFS Series has been specifically developed to absorb large amounts of energy by efficient use of its compact mass.
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TFSS Series
The TFSS Series has been specifically developed to absorb large amounts of energy by efficient use of its compact mass.
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TGH Series
Due to their non-inductive design, these resistors are ideally suited for high-frequency and pulse-load applications.
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TGHD Series
Using the SOT-227 package, the TGHD series features flat type, 100W high power resistors that require an air-cooled heatsink or water-cooling to reach peak performance.
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TGHM Series
The Ohmite TGHM series removes the bulk of the standard SOT-227 package creating an alternative for customers looking for connection options.
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TGH600 Series
The Ohmite TGH600 series uses new materials and technology to achieve high levels of wattage in a small SOT-227 package.
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TL Series
The TL Series add heat sinkable options to the thick film resistor family.
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TNP10 Series
Ohmite’s TNP10 TO126 package resistor provides 10W of steady-state power.
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TP Series High Energy
TP Series high energy resistors offer the user the benefits of non-inductive performance and high power density.
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TRH Series
Combining our signature thick film technology with a ceramic heatsink.
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WFH Series
Ohmite’s new flat core winding technology allows for wirewound heatsinkable resistors.
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Stability: Leader in Resistive Technology for 100 Years
Ohmite has manufactured resistors for 100 years! We've demonstrated a proven track record of creating quality resistive products for high power, high energy, and high voltage applications.
Flexibility: We are Experienced Problem Solvers
Whether it's our expansive catalog of standard parts, our many customization options for each series, or our ability to develop brand new products based on customer designs, Ohmite is dedicated to solving engineers' problems.
Accessibility: We're Here to Help as Trustworthy Partner
Ohmite's team of engineers are available to explain our technology, answer your questions, and consult on important design decisions to help make our customers' lives easier.