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Overview

The 3601 Series is a single-pole, single-throw, bimetal snap-action switch that closes on temperature rise. This series represents the first hermetically sealed switches in a TO-5 package that is wave solderable, providing increased manufacturing efficiency.

They are designed for mounting on printed circuit boards to protect against hazardous temperatures associated with the thermal density of components on backplanes, flexible circuitry and sophisticated time-based circuits.

They have WE-1 gold alloy cross point contacts for low voltage applications, and are packaged in a standard JEDEC TO-5 transistor housing with 19 mm [0.75 in] long, 457 mm [0.018 in] diameter leads.

They provide both ambient and surface sensing and are preset and tamper-proof. A variety of mounting brackets is available.

Documents

TITLE DOCUMENT TYPE LANGUAGE SIZE
Precision Thermostats Datasheet -- 5MB
Thermostats Line Guide Product Line Guide English 444KB
Soldering Wire Leads on Precision Hermetic Thermostats Installation Instructions English 57KB

Browse 3601 Series Products

Product Functional Properties Open Temperature Close Temperature
3601 040010001 Close on rise 23.9 °C min. w/2.2 °C min. diff. [75 °F min. w/4 °F min. diff.] 40.0 °C [104 °F]
3601 045010001 Close on rise 27.8 °C min. w/2.2 °C min. diff. [82 °F min. w/4 °F min. diff.] 45.0 °C [113 °F]
3601 050010001 Close on rise 31.1 °C min. w/2.2 °C min. diff. [88 °F min. w/4 °F min. diff.] 50.0 °C [122 °F]
3601 055010001 Close on rise 32.2 °C min. w/2.2 °C min. diff. [90 °F min. w/4 °F min. diff.] 55.0 °C [131 °F]
3601 060010001 Close on rise 37.2 °C min. w/2.2 °C min. diff. [99 °F min. w/4 °F min. diff.] 60.0 °C [140 °F]
3601 065010001 Close on rise 42.2 °C min. w/2.2 °C min. diff. [108 °F min. w/4 °F min. diff.] 65.0 °C [149 °F]
3601 070010001 Close on rise 47.2 °C min. w/2.2 °C min. diff. [117 °F min. w/4 °F min. diff.] 70.0 °C [158 °F]
3601 075010001 Close on rise 52.2 °C min. w/2.2 °C min. diff. [126 °F min. w/4 °F min. diff.] 90.0 °C [194 °F]
3601 080010001 Close on rise 57.2 °C min. w/2.2 °C min. diff. [135 °F min. w/4 °F min. diff.] 80.0 °C [176 °F]
3601 085010001 Close on rise 60.0 °C min. w/2.2 °C min. diff. [140 °F min. w/4 °F min. diff.] 75.0 °C [167 °F]