OHD1-90B

Overview

OHD: The OHD Thermal Guard is developed for thermal problem countermeasures and safety standard conformity, which are becoming increasingly important for electronic devices in recent years.

Their unique proprietary design features a magnet and a temperature-sensing soft ferromagnetic substance called Thermorite®. The material’s magnetic flux density decreases as the temperature increases turning it into a paramagnetic substance at the Curie temperature. These products have also been attested by the International Relay Association.

TRS: The TRS Thermal Reed Switch is a highly reliable, precise temperature-sensitive switch ideal for energy conservation.

TRS-P: The TRS Thermal Reed Switch packaged into a screw mounting device, for simple screwing into the device requiring temperature detection or overheat monitoring.

Applications

OHD: Typical applications include atmospheric temperature detection and overheating monitoring of power transistors, power modules, room heaters, hot gas heaters, PPCs, amplifiers, motors, HDDs, FDDs and other general appliances.

TRS: Typical applications include temperature detection and overheat monitoring of electric appliances, heat-retention heater control for rice cookers, defrost for air conditioners and vending machines, roll heater temperature control for copying machines, radiator water temperature detection for automotive electric fan control.

TRS-P: Typical applications include radiator water detection and overheat detection for industrial and agricultural engines.

Benefits

OHD:

• •  High reliability for on/off operations
• •  High-speed response
• •  Long operational life
• •  Excellent environmental durability
• •  Compatibility with extremely low (0.1 mW or lower) signals to high power (6 W) levels
• •  Extremely simple circuit design
• •  Compact, light and easy to handle
• •  Dust, explosion and corrosion-proof
• •  Wide range of operating temperatures available in 5°C increments from +30°C to +130°C
• •  UL, CSA and TÜV approved
• •  RoHS/REACH compliant

TRS:

• •  High reliability for on/off operations
• •  High-speed response
• •  Long operational life
• •  Excellent environmental durability
• •  Extremely simple circuit design
• •  Compact, light and easy to handle
• •  Dust, explosion and corrosion-proof
• •  Wide range of operating temperatures available from −10°C to +130°C
• •  Excellent temperature accuracy of ±2.5°C
• •  UL and CSA approved for TRS5***BLRU 100V
• •  UL approved for TRS5***BLRVU 200V
• •  RoHS/REACH compliant

TRS-P:

• •  High reliability for on/off operations
• •  High-speed response
• •  Long operational life
• •  Excellent environmental durability
• •  Extremely simple circuit design with the screw mounting
• •  Compact, light and easy to handle
• •  Dust, explosion and corrosion-proof
• •  Wide range of operating temperatures available
• •  Excellent temperature accuracy of ±3°C
• •  RoHS/REACH compliant

Looking for more information on KEMET’s Thermal Switches? Check out our thermal switch overview video!

KEMET’s Thermal Sensors Video: