Thermostats
3MS1 QPL Series
Military. QPL. Each unit 100% inspected. Hermetically sealed. Tight tolerances & differentials. SPST contacts. Mounting brackets, terminals.
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Overview
The 3MS1 QPL Series consists of a single pole, single throw switch activated by a snap-action bimetal disc. Temperature calibrations are pre-set at the factory, and each unit is 100% thermally and mechanically inspected. It is available to open or close on temperature rise. The case is laser welded to form a hermetically sealed steel housing with a glass-to-metal seal at the terminal junction. It is qualified to MIL-S-24236 and is QPL listed for military applications.
Features
- Hermetically sealed
- Tight tolerances
- Tight differentials
- Hi-Rel
- QPL listed
Potential Applications
- Military
Specifications
Others
- Operating temperature
- -46 °C to 191 °C [-50 °F to 375 °F]
- Vibration
- MIL-STD-202, Method 204; 20 G
- Acceleration Range/Limits
- MIL-STD-202, Method 212; 20 G
- Insulation Resistance
- MIL-STD-202, Method 302; 500 MOhm
- Humidity
- MIL-STD-202, Method 106
- Thermostat Environmental Exposure Range
- -65 °C to 260 °C [-85 °F to 500 °F]
- Seal Type
- MIL-STD-202, Method 112; Cond. C
- Dielectric Strength
- MIL-STD-202, Method 301; 1250 Vac 60 Hz - Terminal to Case
- Agency Approvals and Standards
- MIL-PRF-24236/1 and QPL
- Thermal Shock
- MIL-STD-202, Method 107; Cond. B
- Shock
- MIL-STD-202, Method 213; 100 G
- Thermostat Contact Resistance
- MIL-STD-202, Method 307; 0.050 Ohm max.
- Salt Spray
- MIL-STD-202, Method 101; Cond. B
Others
- Operating temperature
- -46 °C to 191 °C [-50 °F to 375 °F]
- Vibration
- MIL-STD-202, Method 204; 20 G
- Acceleration Range/Limits
- MIL-STD-202, Method 212; 20 G
- Insulation Resistance
- MIL-STD-202, Method 302; 500 MOhm
- Humidity
- MIL-STD-202, Method 106
- Thermostat Environmental Exposure Range
- -65 °C to 260 °C [-85 °F to 500 °F]
- Seal Type
- MIL-STD-202, Method 112; Cond. C
- Dielectric Strength
- MIL-STD-202, Method 301; 1250 Vac 60 Hz - Terminal to Case
- Agency Approvals and Standards
- MIL-PRF-24236/1 and QPL
- Thermal Shock
- MIL-STD-202, Method 107; Cond. B
- Shock
- MIL-STD-202, Method 213; 100 G
- Thermostat Contact Resistance
- MIL-STD-202, Method 307; 0.050 Ohm max.
- Salt Spray
- MIL-STD-202, Method 101; Cond. B
- Operating temperature : -46 °C to 191 °C [-50 °F to 375 °F]
- Vibration : MIL-STD-202, Method 204; 20 G
- Acceleration Range/Limits : MIL-STD-202, Method 212; 20 G
- Insulation Resistance : MIL-STD-202, Method 302; 500 MOhm
- Humidity : MIL-STD-202, Method 106
- Thermostat Environmental Exposure Range : -65 °C to 260 °C [-85 °F to 500 °F]
- Seal Type : MIL-STD-202, Method 112; Cond. C
- Dielectric Strength : MIL-STD-202, Method 301; 1250 Vac 60 Hz - Terminal to Case
- Agency Approvals and Standards : MIL-PRF-24236/1 and QPL
- Thermal Shock : MIL-STD-202, Method 107; Cond. B
- Shock : MIL-STD-202, Method 213; 100 G
- Thermostat Contact Resistance : MIL-STD-202, Method 307; 0.050 Ohm max.
- Salt Spray : MIL-STD-202, Method 101; Cond. B
Data Sheet
Name
Description
File Size
Date
Size
Precision and High Reliability Thermostats
application/pdf 5.15 MB
8/24/2021
5.15 MB
Manuals and Guides
Name
Description
File Size
Date
Size
Soldering Wire Leads on Precision Hermetic Thermostats
application/pdf 216.61 KB
8/24/2021
216.61 KB
Aerospace and Defense Product Range Guide
application/pdf 19.65 MB
9/23/2024
19.65 MB
Technical Tip Bulletin - Precision Thermostat | Gold Contact Selection Guide
application/pdf 33.28 KB
8/24/2021
33.28 KB
Precision Thermostat Selection Guide
application/pdf 258.21 KB
8/24/2021
258.21 KB
Brochure
Name
Description
File Size
Date
Size
Industrial Applications: Going Beyond Limits
application/pdf 16.69 MB
11/17/2022
16.69 MB
Technical Note
Name
Description
File Size
Date
Size
Industrial Product Line Card --
application/pdf 2.24 MB
10/25/2022
2.24 MB
Application Note
Name
Description
File Size
Date
Size
Name
Description
File Size
Date
Size
Soldering Wire Leads on Precision Hermetic Thermostats
application/pdf 216.61 KB
8/24/2021
216.61 KB
Industrial Applications: Going Beyond Limits
application/pdf 16.69 MB
11/17/2022
16.69 MB
Industrial Product Line Card --
application/pdf 2.24 MB
10/25/2022
2.24 MB
Precision and High Reliability Thermostats
application/pdf 5.15 MB
8/24/2021
5.15 MB
Aerospace and Defense Product Range Guide
application/pdf 19.65 MB
9/23/2024
19.65 MB
Technical Tip Bulletin - Precision Thermostat | Gold Contact Selection Guide
application/pdf 33.28 KB
8/24/2021
33.28 KB
Precision Thermostat Selection Guide
application/pdf 258.21 KB
8/24/2021
258.21 KB
Name
Description
File Size
Date
Size
Precision and High Reliability Thermostats
5.15 MB
8/24/2021
Soldering Wire Leads on Precision Hermetic Thermostats
216.61 KB
8/24/2021
Aerospace and Defense Product Range Guide
19.65 MB
9/23/2024
Technical Tip Bulletin - Precision Thermostat | Gold Contact Selection Guide
33.28 KB
8/24/2021
Industrial Applications: Going Beyond Limits
16.69 MB
11/17/2022
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