Ultraminiature SMT Tact Switch measures 4.5 x 4.5 mm.

Press Release Summary:

Rated 50 mA at 12 Vdc, TL3305 Series features surface mount termination and choice of 160 or 250 gf operating forces with operating lifecycles up to 500,000 and 200,000, respectively. Contact resistance is 100 mΩ max and insulation resistance is 100 MΩ min at 100 Vdc. Available with multiple actuator lengths from 3.8–7.0 mm, switch has SPST, normally open contact arrangement. Applications include wearable technology, telecommunications, consumer electronics, and medical devices.

Original Press Release:

The New TL3305 Series Ultraminiature SMT Tact Switch

MINNEAPOLIS, MN – E-Switch Announces the TL3305 series ultraminiature SMT tact switch. It offers a mere 4.5mm x 4.5mm package size for your application design. It has a surface mount termination, and two operating forces to choose from with operating lifecycle up to 500,000. It also offers multiple actuator lengths from 3.8mm to 7.0mm.

Applications include wearable technology, telecommunications, consumer electronics, audio/visual, medical devices, testing/instrumentation and computer/peripherals.

Specifications for the TL3305 series ultraminiature tact switch include:

Electrical Rating: 50mA @ 12VDC

Electrical Life:

160 gf = 500,000 Cycles

260 gf = 200,000 Cycles

Contact Resistance: 100mΩ Max

Insulation Resistance: 100MΩ Min. at 100VDC

Dielectric Strength: 250VAC for 1 min.

Operating Temperature: -20°C to 70°C

Storage Temperature: -30°C to 80°C

Operating Force: 160 gf, 250 gf

Travel: 0.20mm

Contact Arrangement: SPST, normally open

TL3305 Series Product Detail Page

TL3305 Series Catalog Data Sheet

Visit E-Switch at www.e-switch.com. You can also request a sample of any of our discrete part numbers for one of your projects!

About E-Switch. E-Switch offers one of the broadest switch lines available today. The company has been delivering innovative and quality switches to the electronics, telecom, high tech, medical, instrumentation, industrial, audio/visual, appliance, and consumer markets since 1979.

Headquartered in Minneapolis, Minnesota, with offices in Singapore and Hong Kong, E-Switch’s global reach extends to Europe, Asia, and Latin America. Products include Tact, Pushbutton, Rocker, Toggle, Slide, DIP, Rotary, Keylock, Snap Action, Power, Illuminated Switches and more. E-Switch has local reps, engineers, and account managers on hand to provide specifying assistance and quick response to 3D drawing requests and other inquiries, along with a top-notch sample program that allows engineers to examine and qualify switches for end product applications.

E-Switch’s online catalog includes complete specifications, drawings and schematics. Product modifications and customization expertise are available for many of the offered switches.

E-Switch, Inc.

7153 Northland Drive N

Minneapolis, MN 55428



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