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Thermal Reed Switches:

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Thermal Reed Switch is a type of temperature sensor/switch used for energy conservation. Its unique proprietary design features a magnet and a temperature-sensing soft ferromagnetic substance called Thermorite®. The material’s magnetic flux density decreases as the temperature increases turning it into a paramagnetic substance at the Curie temperature. It’s a proprietary technology designed by Tokin/Kemet.

Thermal Reed Sensors/Switches uses special alloy magnets that cut off and required temperatures. These devices can be used to accurately sense temperature changes in solids, semi-solids, liquids, or gases, and can switch low level signal loads of up to 10W. Unlike bi-metallic strips, the switching point is unaffected by the load current and the switching temperature is highly repeatable between 1°C to 3°C. Thermal Reed Sensors can also be used to switch signal loads as low as 10 micro-amps.

key features of the Thermal Reed Switches

  • High Reliability for multiple on/off operations
  • Excellent response to temperature changes
  • Long Operational Life
  • Compact, Light and easy to install and handle
  • Wide Operating Temperature
  • UL & CSA approvals

Applications of Thermal Reed Sensors/Switches

  • Over temperature detection and control in electrical appliances
  • Heat-retention heater control in rice cookers
  • Defrost control in air conditioners and vending machines
  • Radiator water temperature detection and fan control
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Thermal Reed Switch Contact Type
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Thermal Reed Switch Terminals
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3703879

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Date/Lot Code

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US$35.671
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US$33.165
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US$32.039
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US$31.517
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US$30.994
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95°C
± 3°C
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0.5ohm
10W DC
100VDC
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10°C
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3703868

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US$35.389
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US$32.294
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US$30.150
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90°C
± 3°C
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0.5ohm
10W DC
100VDC
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3703876

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US$34.049
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3703866

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US$34.800
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US$31.785
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10W DC
100VDC
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3703881

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3703895

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10W DC
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3703871

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10W DC
100VDC
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3703884

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Date/Lot Code

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US$29.225
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US$23.102
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US$22.633
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120°C
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0.5ohm
10W DC
100VDC
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3703870

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US$34.237
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US$32.977
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US$31.704
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3703887

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US$29.493
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US$27.068
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US$26.157
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10W DC
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3703902

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3703891

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US$35.872
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US$30.766
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US$28.770
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3703893

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3703875

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3703872

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3703877

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US$33.165
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3703886

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US$29.493
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US$27.068
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US$26.157
Min: 1 / Mult: 1
80°C
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0.5ohm
10W DC
100VDC
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3703883

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Date/Lot Code

Each
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US$33.969
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US$29.654
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US$28.207
Min: 1 / Mult: 1
115°C
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0.5ohm
10W DC
100VDC
5mA
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3703882

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Each
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US$33.822
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US$29.534
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US$27.483
Min: 1 / Mult: 1
110°C
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0.5ohm
10W DC
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3703880

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Date/Lot Code

Each
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US$33.875
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US$29.587
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US$29.292
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3703869

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Date/Lot Code

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US$35.966
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US$32.776
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US$31.088
Min: 1 / Mult: 1
95°C
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0.5ohm
10W DC
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5mA
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10°C
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3703888

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Date/Lot Code

Each
1+
US$29.493
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US$27.068
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US$26.157
Min: 1 / Mult: 1
90°C
± 3°C
Break
Screw-In
Screw-In
Tab Leads
TRS Series
0.5ohm
10W DC
100VDC
5mA
500mA
10°C
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