Overview
The Ohmite L100J100 is a heavy-duty power resistor engineered for demanding industrial and test applications. This 100-watt, 100-ohm resistor belongs to Ohmite’s proven 270 Series and combines wirewound construction with a durable vitreous enamel coating. The L100J100 delivers reliable thermal dissipation and mechanical ruggedness needed in equipment requiring high-power load banks, brake resistors, and control circuit applications.
Key Features
- Power Rating: 100W at 25°C free-air rating ensures robust performance in continuous-duty applications
- Wirewound Construction: Precision-wound on a ceramic core for superior heat distribution and mechanical strength
- Vitreous Enamel Coating: Provides electrical insulation, flame resistance, and excellent heat conduction
- Flexible Mounting: Hollow core design permits fastening with spring-type brackets, through-bolts, or slotted-steel brackets for secure installation
- Lug Terminals: Radial lug connection suitable for soldering or sturdy bolt connection in cabinet and chassis assemblies
- Industrial-Grade Durability: All-welded construction suitable for rugged manufacturing, motor control, and test equipment environments
Technical Specifications
- Resistance Value: 100 ohms
- Tolerance: ±5%
- Power Rating: 100W (at 25°C free-air)
- Voltage Rating: 2,845V
- Temperature Coefficient: ±260 ppm/°C
- Resistor Type: Wirewound
- Case Style: Vitreous Enamel
- Mounting Style: Chassis Mount / Bolt-On
- Termination: Radial Lug (solder or bolt connection)
- Dimensions: Approximately 6.5 inches length × 0.75 inch diameter
- RoHS Compliance: Non-compliant
- Series: L100 / 270 Series
Typical Applications
- Load banks and power dissipation circuits
- Braking resistors in motor and drive systems
- Test and measurement equipment requiring precision load resistance
- Surge suppression and energy absorption circuits
- Industrial control cabinets and panel assemblies
- Line-side equipment requiring thermal management
Compatibility & Replacements
Compatible With
- Industrial equipment using standard chassis-mount power resistor slots
- Motor control systems (DC, AC induction, servo drives)
- VFD and variable frequency drive braking circuits
- Load bank and test equipment platforms
- Cabinet-mounted control panels requiring bolt-down resistor fixtures
Replaces / Drop-In Replacement For
- L100J100E (variant with solder lug configuration)
- Other 100W 100Ω power resistors in legacy industrial equipment requiring 270 Series form factor
- Verify exact mounting hardware and terminal compatibility with your system integrator before ordering
Works With
- Ohmite mounting brackets and hardware (sold separately: 12E-100, 12SE-100, 12BE-10)
- Standard through-bolt and spring-bracket fastening systems
- Mica and ceramic washers for thermal management and insulation
- Any industrial control or test equipment platform supporting standard chassis-mount resistor configurations
