Littelfuse Inc.

09/21/2023 | Press release | Archived content

Carling Technologies Adds Window Lift Option to L-Series Sealed Rocker Switches

SPDN devices provide equipment protection from transient overvoltage events lasting micro-seconds

PLAINVILLE, September 21, 2023 -- Carling Technologies, a Littelfuse, Inc. (NASDAQ: LFUS)brand, announced the addition of a window lift switch option to the popular L-Series sealed, snap-in switch lineup. Available for 12 VDC and 24 VDC systems with current ratings from 0.4 to 20 A, the new window lift switch features above-panel components that are sealed to an IP67 rating for protection against dust, debris, and water. The rugged design makes the L-Series well-suited for use in construction, agricultural, and on-highway vehicles.

"Like the many other styles available in the L-Series, the window lift switch is simple to install and can be configured with industry-standard .187 or .250 Quick Connect tab terminations," said Jerry Peplau, Product Manager.

Highlights of the L-Series Window Lift Switch

Specifically designed for window control, the L-Series sealed, in-cab switch can be configured with the following electrical ratings:

  • 0.4 VA 28 VDC Resistive
  • 15 A 24 V
  • 15 A 12 V
  • 20 A 12 V

In addition, the switch features:

  • Above-panel components sealed to an IP67 rating
  • Resistance to vibration, shock, thermo-shock, moisture, and salt spray
  • An industry-standard mounting size which fits into a 1.734" x .867" (44.0 mm x 22.0 mm) hole
  • A nylon base with a UL 94 V-0 flammability rating
  • An operating temperature of -40 °C to +85 °C
  • Options for legend orientation

The 3425L Series SMD PPTCs offer the following key benefits:

  • Resettable overcurrent protection with operational voltages ranging from 36 V to 60 V.
  • Compatible with high-volume electronics assembly, providing a compact 3.4 x 2.5 mils size surface mountable footprint.
  • Environmentally friendly with RoHS compliance and halogen-free manufacturing.

Learn More About L-Series Sealed Window Lift Switches

More information on L-Series sealed switches can be found at:

Requests for the L-Series can be placed through Carling authorized distributors and sales representatives worldwide. For a listing of distributors and sales representatives, please visit

About Carling Technologies

As a global leader in circuit protection, switching, and power distribution, Carling Technologies, a Littelfuse brand, is dedicated to developing modern, innovative solutions that ensure the communications technology, transportation, and infrastructure we rely on every day is safe, sustainable, and working when it matters most. As a part of Littelfuse since 2021, Carling Technologies has leveraged complementary engineering capabilities, application expertise, and product portfolios to provide greater value to its diverse OEM and distributor customer base. Learn more at

About Littelfuse

Littelfuse (NASDAQ: LFUS) is an industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 20 countries, and with approximately 18,000 global associates, we partner with customers to design and deliver innovative, reliable solutions. Serving over 100,000 end customers, our products are found in a variety of industrial, transportation, and electronics end markets - everywhere, every day. Learn more at