New Product

Ohmite TKH45 Power Resistors | Tech Specs

August 28, 2018 by TTI, Inc

The TKH45 series resistors from Ohmite have the same footprint as standard TO-252 resistors but are a smaller size, measuring 0.91 mm thick.

This episode of Tech Specs is part of a video series highlighting the features, applications, and technical specs of newly-released products.

Ohmite TKH45 Power Resistors

The TKH45 series resistors from Ohmite have the same footprint as standard TO-252 resistors but are a smaller size, measuring 0.91 mm thick. TKH45 resistors are 45 watt thick film chip resistors with many advantages besides their low profile. The thick film construction requires no wire bonding or soldering of internal chip resistors, which increases reliability while reducing inductance for improved performance in pulsed applications. The resistors also have fewer thermal layers and a large resistance area for improved thermal performance, with a thermal resistance of just 3.0°C/W, and they can be used with Ohmite’s D series heatsink. The TKH45 series has a wide negative 55 to positive 175 degrees Celsius temperature range and is ideal for use in automotive applications, PV, UPS, and motor control inverters, and other high wattage applications.

  • Low-profile (0.91 mm thick) with TO-252 footprint
  • Resistance range: 0.02 Ω to 510 kΩ
  • 14.65 nH ESL
  • Low 3.0°C/W thermal resistance (resistor to back metal)
  • Compatible with Ohmite D series heatsinks
  • -55°C to +175°C temperature range

More Information

New Industry Products are a form of content that allows industry partners to share useful news, messages, and technology with All About Circuits readers in a way editorial content is not well suited to. All New Industry Products are subject to strict editorial guidelines with the intention of offering readers useful news, technical expertise, or stories. The viewpoints and opinions expressed in New Industry Products are those of the partner and not necessarily those of All About Circuits or its writers.