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 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 has the solution for high wattage surface mount chips. The ALN series thick film chips offer 3.5 watts of power dissipation in a 2512 package size. This is accomplished with the use of… Read More
TX Series
The TX series is the first thermistor released by Ohmite. The TX series is avaiable in 3 sizes (0402,0603, and 0805). The B-constant of the TX series is taken at 25°C to 85°C with values ranging… Read More
AMC Series
The Ohmite AMC series of thick film chips are compliant with AEC-Q200 specifications. This qualification makes the AMC series ideal for automotive applications. The AMC series resistors are available… Read More
ARCOL AP101 Series
AP101 100W TO-247 High Power Resistors 100 watts at 25°C case temperature heat sink mounted TO-247 style power package Single screw mounting to heat sink Mou lded case for protection Elec… Read More
ARCOL AP725 Series
AP725 20W TO-263 Power Resistor The ARCOL AP725 provides power dissipation up to 20 watts with a proper heatsink. The thick film on substrate design contains low inductance. This substrate is… Read More
ARCOL AP830 Series
AP830 30 Watts TO-220 High Power Resistors A high power TO-220 style resistor package designed for high frequency emitter circuits in switching power supplies. Also used in voltage regulation… Read More
ARCOL AP836 Series
AP836 35 Watts TO-220 High Power Resistors A high power TO-220 style resistor package designed for high frequency emitter circuits in switching power supplies. Also used in voltage regulation… Read More
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ARCOL AP851 Series
AP851 50 Watts TO-220 High Power Resistors A high power TO-220 style resistor package designed for high frequency emitter circuits in switching power supplies. Also used in voltage regulation… Read More
ARCOL ARC2 Series
ARCOL ARC2 Features & Uses Designed for applications such as voltage dividers, medical and measuring equipment, electrostatic and current limiting devices where high stability, low TCR and high… Read More
ARCOL ARC3 Series
ARC3 High Voltage Precision Resistors Designed for applications such as voltage dividers, medical and measuring equipment, electrostatic, and current limiting devices where high stability, low… Read More
ARCOL FPA600 Series
FPA600 600W Thick Film Heatsinkable Resistors 600 Watt resistor designed for various applications including power transmission, traction, variable speed drives, power supplies, robotics, motor… Read More
ARCOL L4T Series
L4T Series The L4T Series, brought to you by ARCOL, boasts a TCR of 75PPM with 50PPM available. L4T is available in both 1206 and 2010 package sizes. The L4T covers the most widely used resistance… Read More
ARCOL TFBR Series
TFBR Stainless Steel Power Resistors The TFBR series provides high power density in a low profile package. Designed for easy assembly and supplied with a variety of terminal styles, the film… Read More
AS Series
Anti-surge Thick Film Chip Resistors The AS series is a small size and lightweight anti-surge resistor. Following the IEC 61000-4-5, the AS Series Anti-surge Thick Film Chip Resistor can withstand… Read More
HVC Series
HVC Series Features & Uses Ohmite’s High Voltage HVC Series incorporates high accuracy screen printing technology to achieve high voltage capability in a stable wraparound SMD chip resistor… Read More
HVF Series
Discontinued December 2017 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… Read More
IS Series Resistor
Ultra Low Profile Power Resistors The Ohmite IS series offers up to 270 watts in a heatsinkable design. Thick film construction provides low inductance. Thick film is printed on flat steel to… Read More
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. These metal oxide element resistors carry great power and voltage overload… Read More
MacroChip Series
High Voltage/High Resistance MacroChip Series Ohmite’s MacroChip resistors bring precision high voltage capabilities to surface mount applications. Designed with thick film on alumina substrate… Read More
Maxi-Mox Series
Precision Thick Film Axial Terminal High Voltage/High Resistance Maxi-Mox resistors are versatile with wide resistance ranges and tolerances. Non-inductive options exist with voltage handing… Read More
MC1RD Series
Surface Mount SMT-MOX Divider High Voltage/High Resistance Ohmite’s MC1RD resistors bring precision high voltage capabilities to surface mount applications. Designed with thick film on alumina… Read More
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. Each resistor provides a rating of 0.75W with a maximum voltage… Read More
MEV Series
Metal-Film Automotive Grade MELF AEC-Q200 - Discontinued Novmeber 2021 - The Ohmite MEV series of Metal film MELF resistors are AEC-Q200 compliant. This automotive grade MELF series is available… Read More
MMV Series
Thick-Film Automotive Grade Chip AEC-Q200 - Discontinued November 2021 - The Ohmite MMV series of thick film chips are AEC-Q200 compliant. This automotive grade chip series is available in… Read More
Mini Macro Chip Series
Ohmite offers the Mini Macro Chip (MMC) series in Thick Film construction for High Voltage applications. The MMC series is available in multiple sizes ranging from 0603 up to 2512 surfacemount… Read More
Mini-Mox Series
Precision Thick Film Axial Terminal High Voltage/High Resistance The Mini-Mox resistor is very versatile, covering a wide resistance range as well as a wide range of operating voltages. Provided… Read More
MOX700 series
When precision and stability are required, look for the MOX700 series from Ohmite. The MOX700 is an axial leaded resistor with molded construction with standard tolerances down to 0.1% with… Read More
Power-Mox Series
Precision Power Thick Film Resistor & Divider High Voltage/High Resistance Tubular The heavy-duty construction of the Power-Mox series makes them durable in most high voltage industrial applications.… Read More
RX-1M Hi-Meg
Ultra-High Resistance Hi-Meg Resistors High Stability Hermetically Sealed These Hi-Meg resistors are designed for use in electrometer circuits where a high order of performance is required.… Read More
Slim-Mox Series
Ohmite’s Slim-Mox provides stable performance for a wide range of resistance values, with voltage ratings up to 25K. Silicone and epoxy versions are available. Low-temperature coefficients… Read More
SMC Series
The Ohmite SMC series of thick film chips are compliant with industry standards. The SMC series is available in sizes from 2512 to 0075. The 0075 is amongst the smallest in the industry and is… Read More
Super Mox Series
High-voltage Super Mox resistors have been developed to meet the precision temperature stability requirements of high-accuracy and high-voltage systems. Super Mox combines proprietary non-inductive… Read More
TA Series
Power Chip Thick Film on Alumina Substrate Ohmite’s original Power Chip resistors feature our thick film on alumina substrate technology. These planar packages yield space saving, 10W/in2… Read More
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. The TAH20 is completely encapsulated and insulated… Read More
TAP1000 & 2000 Series
1000 & 2000 Watt Heat Sinkable Planar 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).… Read More
TAP650 Series
Ohmite’s TAP650 delivers 650 watts of reliable power to a variety of power conditioning, power transmission, and power control applications. These resistors can be designed for liquid or air-cooled… Read More
TAP600 Series
600 Watt Heat Sinkable Planar Ohmite’s TAP600 delivers 600 watts of reliable power to a variety of power conditioning, power transmission, and power control applications. These resistors can… Read More
TAP800 Series
800 Watt Heat Sinkable Planar Ohmite’s TAP800 Series dissipates 800 watts of power when used with a liquid or air-cooled heat sink system. The TAP800 rounds out 600 watt (TAP600), 1000 watt… Read More
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. The TBH25 series is created with low inductance… Read More
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. These very low induction resistors are built under… Read More
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. The Ohmite D series heatsinks with… Read More
TDH50 Series
The TDH50 is a D2PAK surfacemount device capable of high wattage dissipation with the proper heatsink and thermal considerations. The Ohmite D series heatsinks with the TDH50 presents a complete… Read More
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. Ideal use is for power supplies.… Read More
TEH140
DISCONTINUED JUNE 2023. PLEASE SEE NEW TEH140P INFORMATION BELOW The Ohmite TEH140 series is a high-wattage multiple construction TO-247 power resistor. The TEH140 Series is available in Thick… Read More
TFS Series
Thick Film Non-Inductive High Voltage Resistor The TFS Series has been specifically developed to absorb large amounts of energy by efficient use of its compact mass. Often used to replace standard… Read More
TFSS Series
Thick Film Non-Inductive High Voltage SMD Resistor The TFSS Series has been specifically developed to absorb large amounts of energy by efficient use of its compact mass. Often used to replace… Read More
TGH Series
120 and 200 Watt SOT227 Package Thick Film Power Due to their non-inductive design, these resistors are ideally suited for high-frequency and pulse-load applications. Available in 120- or 200-watt… Read More
TGHD Series
Non-Inductive High Power Resistor 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… Read More
TGHE Series
100 Watt Thick Film Resistor The TGHD series features a ceramic flat type base. The 100W power dissipation require an air-cooled heatsink or water-cooling to reach peak performance. Look for… Read More
TGHM Series
Thick Film Power Resistor The Ohmite TGHM series removes the bulk of the standard SOT-227 package creating an alternative for customers looking for connection options. The Ohmite TGHM relocates… Read More
TGH600 Series
600 Watt SOT-227 The Ohmite TGH600 series uses new materials and technology to achieve high levels of wattage in a small SOT-227 package. Changes in the thick film process allow new materials… Read More
TKH45 Series
Designed to replace any TO-252 package. The TKH45 is rated at 45 watts with a thermal resistance of 3.0°C/W in a surface-mount design capable of high wattage dissipation with the proper heatsink… Read More
TL Series
TL Series Modular Heat Sinkable Thick Film Power The TL Series add heat sinkable options to the thick film resistor family. The resistor element is packaged with plastic insulators and quick-connect… Read More
TNP10 Series
TNP10 Series is Discontinued as of 3/20 Ohmite’s TNP10 TO126 package resistor provides 10W of steady-state power when properly used in today’s well-defined heat sink applications. A single… Read More
TP Series High Energy
Thick Film on Alumina Substrate TP Series high energy resistors offer the user the benefits of non-inductive performance and high power density. As an added feature, they provide the impulse… Read More
TRH Series
Discontinued May 2022- All information for reference only Combining our signature thick film technology with a ceramic heatsink, Ohmite has engineered a product that can cover all your needs… Read More
WFH Series
Aluminum Housed Wirewound Power Ohmite’s new flat core winding technology allows for wirewound heatsinkable resistors affording a very low profile, and superior thermal transfer characteristics… Read More