6600 Series – SMD/PCB mounting

The Airpax™ 6600 series is a RoHS-compliant, sub-miniature, positive snap-action bimetallic thermostat designed for precise thermal sensing and control applications. It is a single-pole, single-throw (SPST) device available in both “open on rise” and “close on rise” configurations. The thermostat conforms to the 8-pin DIP (N8A Dual Inline Package) international electronic package standard, making it ideal for high-speed automated PCB placement and soldering.

Key Features

• Gold-Plated Contacts: Enhances conductivity and durability.
• Extended Life Cycles:
  • Up to 30,000 cycles at maximum standard amperage (120VAC).
  • Up to 100,000 cycles at maximum gold contact amperage.
• RoHS Compliant: Meets EU directive 2002/95/EC.
• Compact Design: 8-pin DIP standard allows for efficient PCB use.
• Sealed for Protection: Withstands wave soldering and board washing operations.

Electrical and Thermal Specifications

• Contact Ratings:
  • 48 VDC, 1.0 A (resistive load) for 25,000 cycles.
  • 120 VAC, 1.0 A (resistive load) for 30,000 cycles.
  • 5 VDC, 0.001 A (gold contacts) for 100,000 cycles.
• Operating Temperature Range: 40°C to 130°C (104°F to 266°F).
• Temperature Tolerance: Standard ±5°C, with 5°C increments.
• Short-Term Exposure Limit: 260°C (500°F) for 10 seconds.
• Long-Term Exposure Limit: -55°C to 160°C (-67°F to 320°F).

Construction and Materials

• Dielectric Strength: 1480 VAC, 60Hz, 1-second duration terminals to case.
• Insulation Resistance: 100 MΩ at 500 VDC.
• Shock Resistance: MIL-STD-202, Method 213, Test Condition C (100 G’s for 6 ms, half sine wave).
• Vibration Resistance: MIL-STD-202, Method 204D, Test Condition D (10 to 2,000 Hz).
• Sealing: High-temperature epoxy sealed for wave soldering and moisture resistance per Sensata specification S-722.
• Material Composition:
  • Base Material: PPS (Polyphenylene Sulfide), UL 94V-0 rated.
  • Terminal Material: 65% Copper, 18% Nickel.
  • Contact Material: Gold-plated or overlay silver crossbar.
• Chemical Resistance: Resists water, salt, alcohol, ammonia, trichloroethane, and most organic solvents.

Applications

The 6600 series thermostats are designed for power supply thermal management and PCB-based applications, making them suitable for various industries:

• Computers and Peripherals: Thermal protection for processors and power supplies.
• Aerospace and Automotive: Overheat prevention in sensitive electronic systems.
• Industrial Test Equipment: Reliable thermal protection in rugged environments.
• Alarm Systems: Activation of indicators, alarms, or shutdown circuits.

Operational Configurations

The 6600 series thermostats are available in two operational modes:

1. Open on Rise (Limit Configuration – L): Breaks the circuit when temperature exceeds a pre-set limit, protecting components from overheating.
2. Close on Rise (Fan Configuration – F): Makes contact when temperature rises, ideal for activating cooling fans or warning systems.

Ordering Information

Each thermostat is assigned a unique part number based on its configuration:

• Contact Operation:
  • “F” = Close on rise (fan control).
  • “L” = Open on rise (over-temperature protection).
• Operating Temperature: Three-digit representation in degrees Celsius (e.g., 095 for 95°C).
• Factory Assigned Number: Optional four-digit suffix for special requirements.

Example:

• 66F095: Closes at 95°C, resets below 60°C.
• 66L060: Opens at 60°C, resets below 40°C.

Conclusion

The Airpax 6600 series thermostats offer a compact, reliable, and efficient solution for thermal management in diverse applications. With robust electrical and environmental specifications, high durability, and precision switching capabilities, these thermostats ensure reliable thermal protection in demanding environments. Their compatibility with automated PCB assembly and RoHS compliance further enhance their utility in modern electronic and industrial applications.

AMIRONIC – Your Trusted Airpax Distributor in Israel As the official distributor of Airpax products in Israel, AMIRONIC provides expert technical support and ensures the highest quality components for your applications. Contact us today for more information or to place an order.