Snap-acting

TF Series
Miniature Snap-acting Switch

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Image shown represents the product series and may not indicate the actual part number

The TF series miniature snap-acting switch from C&K features a broad range of operating forces, ratings up to 21A and a wide variety of actuator styles to fit the specific needs of any design. Often used in motor controls, thermostatics and portable tools, designers across the globe turn to C&K’s TF series for its performance and resilience.

Features and Benefits

  • Broad range of operating forces
  • Ratings up to 21 A
  • Wide variety of actuator styles

Typical Applications

  • Motor controls
  • Thermostatics
  • Portable tools

Specifications

  • Contact Rating:

    From low level to 21 A @ 277 V AC

  • Electrical Life:

    300,000 cycles at 10 A @ 250 V AC

  • Insulation Resistance:

    1,000 megohms min.

  • Dielectric Strength:

    1,500 Vrms min. @ sea level

  • Operating Temperature:

    –40ºC to 85ºC

  • Certifications:

= Most Common

Part Number
Current Rating Circuit Mounting Type Sealing Illumination Switch Function Electrical Life Cycles Voltage Rating - AC Voltage Rating - DC Actuator Type Termination Style Additional Features Operating Force, Torque Release Force Pretravel Differential Travel Overtravel Packaging
1A (AC/DC) SPDT Chassis Mount Unsealed None On-Mom On 300,000 125V 30V Round (Pin Plunger) Quick Connect - 0.187" (4.7mm) 225gf 56gf 0.047" (1.2mm) 0.010" (0.25mm) 0.050" (1.27mm) Bulk
1A (AC/DC) SPST-NO Chassis Mount Unsealed None Off-Mom On 300,000 125V 30V Lever, Simulated Roller Quick Connect - 0.187" (4.7mm) 135gf 20gf 0.100" (2.5mm) 0.030" (0.76mm) 0.060" (1.5mm) Bulk
1A (AC/DC) SPDT Chassis Mount Unsealed None On-Mom On 300,000 125V 30V Lever, Straight Quick Connect - 0.187" (4.7mm) 125gf 18gf 0.110" (2.8mm) 0.030" (0.76mm) 0.065" (1.7mm) Bulk
1A (AC/DC) SPST-NC Chassis Mount Unsealed None On-Mom On 300,000 125V 30V Lever, Roller Quick Connect - 0.250" (6.3mm) 75gf 10gf 0.250" (6.35mm) 0.050" (1.3mm) 0.120" (3.05mm) Bulk
5A (AC) SPST-NO Chassis Mount Unsealed None Off-Mom On 300,000 277V Lever, Straight Quick Connect - 0.187" (4.7mm) 70gf 10gf 0.250" (6.35mm) 0.055" (1.4mm) 0.125" (3.2mm) Bulk
21A (AC) SPDT Chassis Mount Unsealed None On-Mom On 300,000 277V Round (Pin Plunger) Quick Connect - 0.187" (4.7mm) 1 HP, 125 V (AC); 2 HP, 250 V (AC) 225gf 56gf 0.047" (1.2mm) 0.010" (0.25mm) 0.050" (1.27mm) Bulk
15A (AC), 500mA/250mA (DC) SPDT Chassis Mount Unsealed None On-Mom On 300,000 277V 125/250 V Lever, Roller Quick Connect - 0.187" (4.7mm) 1/2 HP, 125/250 V (AC) 225gf 56gf 0.060" (1.5mm) 0.015" (0.38mm) 0.030" (0.76mm) Bulk
15A (AC), 500mA (DC) SPDT Chassis Mount Unsealed None On-Mom On 300,000 277V 125V Lever, Roller Quick Connect - 0.187" (4.7mm) 130gf 20gf 0.100" (2.5mm) 0.030" (0.76mm) 0.065" (1.7mm) Bulk
15A (AC), 500mA (DC) SPST-NC Chassis Mount Unsealed None On-Mom On 300,000 277V 125V Lever, Roller Quick Connect - 0.250" (6.3mm) 130gf 20gf 0.100" (2.5mm) 0.030" (0.76mm) 0.065" (1.7mm) Bulk
15A (AC), 500mA (DC) SPST-NC Chassis Mount Unsealed None On-Mom On 300,000 277V 125V Lever, Roller Quick Connect - 0.250" (6.3mm) 75gf 10gf 0.250" (6.35mm) 0.050" (1.3mm) 0.120" (3.05mm) Bulk
15A (AC), 500mA (DC) SPDT Chassis Mount Unsealed None On-Mom On 300,000 277V 125V Round (Pin Plunger) Quick Connect - 0.250" (6.3mm) 225gf 56gf 0.047" (1.2mm) 0.010" (0.25mm) 0.050" (1.27mm) Bulk
15A (AC), 500mA (DC) SPST-NC Chassis Mount Unsealed None On-Mom On 300,000 277V 125V Round (Pin Plunger) Quick Connect - 0.250" (6.3mm) 225gf 56gf 0.047" (1.2mm) 0.010" (0.25mm) 0.050" (1.27mm) Bulk
15A (AC), 500mA (DC) SPST-NO Chassis Mount Unsealed None Off-Mom On 300,000 277V 125V Lever, Straight Quick Connect - 0.250" (6.3mm) 225gf 56gf 0.060" (1.5mm) 0.015" (0.38mm) 0.030" (0.76mm) Bulk
15A (AC), 500mA (DC) SPST-NC Chassis Mount Unsealed None On-Mom On 300,000 277V 125V Lever, Simulated Roller Quick Connect - 0.187" (4.7mm) 130gf 20gf 0.100" (2.5mm) 0.030" (0.76mm) 0.065" (1.7mm) Bulk
15A (AC), 500mA (DC) SPDT Chassis Mount Unsealed None On-Mom On 300,000 277V 125V Lever, Simulated Roller Quick Connect - 0.187" (4.7mm) 135gf 20gf 0.100" (2.5mm) 0.030" (0.76mm) 0.060" (1.5mm) Bulk
15A (AC), 500mA (DC) SPST-NO Chassis Mount Unsealed None Off-Mom On 300,000 277V 125V Lever, Simulated Roller Quick Connect - 0.187" (4.7mm) 135gf 20gf 0.100" (2.5mm) 0.030" (0.76mm) 0.060" (1.5mm) Bulk
15A (AC), 500mA (DC) SPDT Chassis Mount Unsealed None On-Mom On 300,000 277V 125V Lever, Straight Quick Connect - 0.187" (4.7mm) 125gf 18gf 0.110" (2.8mm) 0.030" (0.76mm) 0.065" (1.7mm) Bulk
15A (AC), 500mA/250mA (DC) SPST-NC Chassis Mount Unsealed None On-Mom Off 300,000 277V 125/250 V Lever, Straight Quick Connect - 0.250" (6.3mm) 1/2 HP, 125/250 V (AC) 125gf 18gf 0.110" (2.8mm) 0.030" (0.76mm) 0.065" (1.7mm) Bulk
15A (AC), 500mA/250mA (DC) SPDT Chassis Mount Unsealed None On-Mom On 300,000 277V 125/250 V Lever, Straight Quick Connect - 0.187" (4.7mm) 1/2 HP, 125/250 V (AC) 125gf 18gf 0.110" (2.8mm) 0.030" (0.76mm) 0.065" (1.7mm) Bulk
15A (AC), 500mA (DC) SPDT Chassis Mount Unsealed None On-Mom On 300,000 277V 125V Lever, Straight Quick Connect - 0.187" (4.7mm) 70gf 10gf 0.250" (6.35mm) 0.045" (1.1mm) 0.125" (3.2mm) Bulk
15A (AC), 500mA (DC) SPST-NC Chassis Mount Unsealed None On-Mom On 300,000 277V 125V Lever, Straight Quick Connect - 0.250" (6.3mm) 36gf 6gf 0.500" (12.7mm) 0.100" (2.54mm) 0.235" (6.0mm) Bulk
15A (AC), 500mA (DC) SPDT Chassis Mount Unsealed None On-Mom On 300,000 277V 125V Round (Pin Plunger) Quick Connect - 0.187" (4.7mm) 225gf 56gf 0.047" (1.2mm) 0.010" (0.25mm) 0.050" (1.27mm) Bulk
15A (AC), 500mA (DC) SPST-NC Chassis Mount Unsealed None On-Mom On 300,000 277V 125V Round (Pin Plunger) Quick Connect - 0.187" (4.7mm) 225gf 56gf 0.047" (1.2mm) 0.010" (0.25mm) 0.050" (1.27mm) Bulk
15A (AC), 500mA (DC) SPST-NO Chassis Mount Unsealed None Off-Mom On 300,000 277V 125V Round (Pin Plunger) Quick Connect - 0.187" (4.7mm) 225gf 56gf 0.047" (1.2mm) 0.010" (0.25mm) 0.050" (1.27mm) Bulk
15A (AC), 500mA (DC) SPDT Chassis Mount Unsealed None On-Mom On 300,000 277V 125V Round (Pin Plunger) Quick Connect - 0.250" (6.3mm) 225gf 56gf 0.047" (1.2mm) 0.010" (0.25mm) 0.050" (1.27mm) Bulk