compact thermostat Sensata 66F040-0441 with silver crossbar contact and moisture proof epoxy sealing
Product Overview
The Airpax 6600 series is a RoHS compliant, positive snap action, single pole / single throw, sub-miniature bimetallic thermostat. It offers accurate and reliable sensing and switching in a single device, dimensionally conforming to the 8-pin DIP international product package standard. Ideal for printed circuit boards, its compact size conserves space and is compatible with auto-insertion equipment. The device is sealed for wave soldering and board washing, providing fast, positive response with excellent repeatability. It supports switch capabilities up to 1A for 48 VDC or 120 VAC, and low-level switching down to 0.020A at 5 VDC for 100,000 cycles. Temperature is factory pre-set and non-adjustable. Applications include computers, peripherals, aircraft, automotive, and test equipment, for functions like indicator lights, alarms, or system shutdowns. Independent customer testing may be necessary to ensure correct calibration in specific applications.
Product Attributes
- Brand: Airpax (Sensata Technologies)
- Certifications: RoHS compliant per EU directive 2002/95/EC, cURus recognized E36687, VDE approval 40028966
- Material (Base): PPS (Polyphenylene Sulfide), 94 VO rated
- Material (Terminal): 65% Copper, 18% Nickel
- Material (Contact): Gold-plated or overlay, silver crossbar
- Seal: High temperature epoxy sealed for wave soldering and cleaning, moisture proof per Sensata specification S-722
- Chemical Resistance: Resistant to water, salt, alcohol, ammonia, trichlorethane and most other organic solvents
- Weight: Approximately 0.45 grams
Technical Specifications
| Specification | Details |
| Contact Resistance | 50 milliohms max (before and after rated life) |
| Contact Ratings | Cycles: 25,000 (48 VDC @ 1.0A), 30,000 (120 VAC @ 1.0A), 100,000 (5 VDC @ 0.02A) |
| Contact Operations | Either close on rise (make) or open on rise (break) |
| Operating Temperature | 40C to 120C (104F to 248F) |
| Temperature Tolerance | Standard of 5C (9F) with nominal operating temperature settings in 5C increments |
| Short Term / Long Term Exposure Limit | Short = 260C (500F), 10 seconds; Long = -55C to 160C (-67F to 320F) |
| Dielectric Strength | 1480 VAC 60Hz, 1 second duration (terminals to case) |
| Insulation Resistance | 100 Mohms at 500 VDC |
| Contact Bounce | 3 milliseconds max (make) |
| Vibration | Per Mil-Std-202, method 204D, test condition D, 10 to 2,000 Hz |
| Shock | Per Mil-Std-202, method 213, test condition C, 100 Gs for 6 millisecond duration, sine wave |
| Soldering Heat Resistance | Per Mil-Std-202F, method 210A, test condition E |
| Standard Packaging | 8-Pin DIP Configuration, Surface Mount (Gullwing, SMT) in industry standard DIP shipping tubes |
| Ordering Options | Part number structure: 66 (Series) + F/L (Contact Operation) + 3-digit Temp (C) + 4-digit Factory Assigned Number (for special requirements) |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.