Thermostats
3500 Series
Military. Hermetically sealed. Tight tolerances & differentials. SPST contacts. Mounting brackets, terminals
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Overview
The 3500 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 meets or exceeds the requirements of MIL-S- 24236 and is designed specifically for military and commercial aircraft applications. It is not QPL listed (see 3MS1).
Features
- Hermetically sealed
- Tight tolerances
- Tight differentials
- Hi-Rel
Potential Applications
- Military and commercial aircraft
Specifications
Technical Specifications
- Acceleration Range/Limits
- MIL-STD-202, Method 212; 20 G
- Thermostat Environmental Exposure Range
- -65 °C to 260 °C [-85 °F to 500 °F]
- Thermostat Contact Resistance
- MIL-STD-202, Method 307; 0.050 Ohm
- MIL-STD-202, Method 307; 0.050 Ohm max.
- Insulation Resistance
- MIL-STD-202, Method 302; 500 MOhm
- Dielectric Strength
- MIL-STD-202, Method 301; 1250 Vac 60 Hz - Terminal to Case
Features
- Vibration
- MIL-STD-202, Method 204; 20 G
- Thermal Shock
- MIL-STD-202, Method 107; Cond. B
- Shock
- MIL-STD-202, Method 213; 400 G
- Seal Type
- MIL-STD-202, Method 112; Cond. C
- Salt Spray
- MIL-STD-202, Method 101; Cond. B
Operating Characteristics
- Operating Temperature
- -46 °C to 204 °C [-50 °F to 400 °F]
- -51 °C to 204 °C [-60 °F to 400 °F]
- Humidity
- MIL-STD-202, Method 106
Standards & Certifications
- Agency Approvals and Standards
- MIL-PRF-24236
- Meets or exceeds requirements of MIL-PRF-24236
Technical Specifications
- Acceleration Range/Limits
- MIL-STD-202, Method 212; 20 G
- Thermostat Environmental Exposure Range
- -65 °C to 260 °C [-85 °F to 500 °F]
- Thermostat Contact Resistance
- MIL-STD-202, Method 307; 0.050 Ohm
- MIL-STD-202, Method 307; 0.050 Ohm max.
- Insulation Resistance
- MIL-STD-202, Method 302; 500 MOhm
- Dielectric Strength
- MIL-STD-202, Method 301; 1250 Vac 60 Hz - Terminal to Case
Features
- Vibration
- MIL-STD-202, Method 204; 20 G
- Thermal Shock
- MIL-STD-202, Method 107; Cond. B
- Shock
- MIL-STD-202, Method 213; 400 G
- Seal Type
- MIL-STD-202, Method 112; Cond. C
- Salt Spray
- MIL-STD-202, Method 101; Cond. B
Operating Characteristics
- Operating Temperature
- -46 °C to 204 °C [-50 °F to 400 °F]
- -51 °C to 204 °C [-60 °F to 400 °F]
- Humidity
- MIL-STD-202, Method 106
Standards & Certifications
- Agency Approvals and Standards
- MIL-PRF-24236
- Meets or exceeds requirements of MIL-PRF-24236
- Acceleration Range/Limits : MIL-STD-202, Method 212; 20 G
- Vibration : MIL-STD-202, Method 204; 20 G
- Thermostat Environmental Exposure Range : -65 °C to 260 °C [-85 °F to 500 °F]
- Thermostat Contact Resistance : MIL-STD-202, Method 307; 0.050 Ohm|MIL-STD-202, Method 307; 0.050 Ohm max.
- Thermal Shock : MIL-STD-202, Method 107; Cond. B
- Shock : MIL-STD-202, Method 213; 400 G
- Seal Type : MIL-STD-202, Method 112; Cond. C
- Salt Spray : MIL-STD-202, Method 101; Cond. B
- Operating Temperature : -46 °C to 204 °C [-50 °F to 400 °F]|-51 °C to 204 °C [-60 °F to 400 °F]
- Insulation Resistance : MIL-STD-202, Method 302; 500 MOhm
- Humidity : MIL-STD-202, Method 106
- Dielectric Strength : MIL-STD-202, Method 301; 1250 Vac 60 Hz - Terminal to Case
- Agency Approvals and Standards : MIL-PRF-24236|Meets or exceeds requirements of MIL-PRF-24236
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
Precision Thermostat Selection Guide
application/pdf 258.21 KB
8/24/2021
258.21 KB
Technical Tip Bulletin - Precision Thermostat | Gold Contact Selection Guide
application/pdf 33.28 KB
8/24/2021
33.28 KB
Soldering Wire Leads on Precision Hermetic Thermostats
application/pdf 216.61 KB
8/24/2021
216.61 KB
Brochure
Name
Description
File Size
Date
Size
Industrial Applications: Going Beyond Limits
application/pdf 16.68 MB
2/11/2025
16.68 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
eBook
Name
Description
File Size
Date
Size
Military Defense Solutions eBook
application/pdf 15.17 MB
2/17/2025
15.17 MB
Name
Description
File Size
Date
Size
Precision Thermostat Selection Guide
application/pdf 258.21 KB
8/24/2021
258.21 KB
Military Defense Solutions eBook
application/pdf 15.17 MB
2/17/2025
15.17 MB
Technical Tip Bulletin - Precision Thermostat | Gold Contact Selection Guide
application/pdf 33.28 KB
8/24/2021
33.28 KB
Industrial Applications: Going Beyond Limits
application/pdf 16.68 MB
2/11/2025
16.68 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
Soldering Wire Leads on Precision Hermetic Thermostats
application/pdf 216.61 KB
8/24/2021
216.61 KB
Name
Date
Size
8/24/2021
7/16/2021
10/25/2022
12/20/2022
12/20/2022
4/11/2024
6/14/2023
12/20/2022
2/17/2025
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3500 00020042
T120 BNA OOR O06005 C04004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00020042
T120 BNA OOR O06005 C04004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00020043
T120 BNA OOR O06505 C04504
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00020043
T120 BNA OOR O06505 C04504
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00020044
T120 BNA OOR O17005 C1309
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00020044
T120 BNA OOR O17005 C1309
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00040002
T117 S306 COR O21208 C24805
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00040002
T117 S306 COR O21208 C24805
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00040003
T117 S306 COR O12005 C13504
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00040003
T117 S306 COR O12005 C13504
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00040010
T117 S306 OOR O24808 C21205
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00040010
T117 S306 OOR O24808 C21205
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00040050
T117 S306 COR O008MD C08604
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00040050
T117 S306 COR O008MD C08604
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00040057
T117 S306 COR O16505 C18004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00040057
T117 S306 COR O16505 C18004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00040058
T117 S306 COR O13005 C16004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00040058
T117 S306 COR O13005 C16004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00050027
T120 S306 OOR O16005 C14504
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
3500 00050027
T120 S306 OOR O16005 C14504
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3500-series-ciid-161732
