Honeywell 3500 High-Reliability Thermostats

Honeywell 3500 Series High Reliability Thermostats are precision, hermetically sealed SPST snap-action thermostats. These thermostats feature a laser-welded steel housing with a glass-to-metal terminal seal for superior durability and environmental protection. The 3500 series high reliability thermostats offer tight tolerances, automatic reset, and reliable switching performance and meet or exceed MIL-PRF-24236 requirements for mission-critical applications. The thermostats operate at a maximum temperature of +204°C and are typically used in aerospace, defense, and industrial applications.

Features

  • Automatic reset after temperature change
  • Compact and lightweight design
  • Glass-to-metal terminal seal for protection
  • Hermetically sealed
  • High electrical switching reliability
  • Laser-welded stainless steel construction
  • Meets MIL-PRF-24236 performance requirements
  • Precision factory-calibrated switching temperatures
  • Resistant to shock and vibration
  • SPST snap-action switching mechanism
  • Tight temperature tolerance and repeatability
  • Wide operating temperature range

Applications

  • Aerospace systems
  • Aircraft environmental control systems
  • Avionics and electronic enclosures
  • Defense equipment
  • Industrial temperature control systems
  • Test and measurement equipment

Technical Specifications

Parameters Values
Operating Temperature Range -51°C to +204°C
Environmental Exposure Range -65°C to +260°C
Voltage Rating 28Vdc
Amperage 5A resistive