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Illuminated Tactile And Rotary Switches SF39EC Series

φ39mm
  • SF39EC

  • TACLEX

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Product Overview

SF39EC is a highly integrated human‑machine interface switch that combines rotary position selection with tactile push‑button confirmation. Designed with a standard Ø39 mm panel cutout, it seamlessly merges a six‑position rotary switch (SP6T) with a single‑pole momentary push‑button (SPST), and features a bright white LED backlight indicator that remains clearly visible even in dimly lit environments.


Technical Parameters

Specification
Rotary switch circuit SP6T(6-key common bus)
Rotary switch contact rating

130mA@48V AC/DC max.

Indexing Angle 30°(6 position)
Mechanical Life
20,000 cycles min.
Operating Force 1kgf-cm(Max.)
Tactile Switch SPST
Tactile switch Contact rating 50mA@12V DC
Mechanical Life 20,000 cycles min.
Total Travel 0.15mm±0.1mm
White LED Rating 20mA@12V DC
Contact Resistance

1 Ohm Max. (initial)

Insulation Resistance 100M Ohm Min.
Operating Temperature -10℃-+60
Materials
Cap Polycarbonate (PC)
Base Polyamide(PA)
Housing

Silver: Polyamide(PA)

Black: Polycarbonate (PC)

Nuts Polyamide(PA)
Rubber O-ring Rubber
SUS Washer
SUS

Key Features

1. Dual‑Mode Integration – Rotary Selection + Tactile Confirmation:

Combines rotary position selection with push‑button confirmation in a single unit, reducing the number of panel cutouts and simplifying equipment design complexity.

2. Ready to Use – Connector Terminal Design:
Features connector terminals for solderless assembly, significantly shortening production line assembly time.

3. Visual Feedback – Built‑in White LED Illumination:
Integrated white LED backlight provides clear status indication at a glance, ideal for low‑light working environments.

4. Customisation Services – Panel Engraving & Icon Tailoring:
Supports custom panel engraving and icon design to meet brand differentiation and functional labelling requirements.


Applications

Commercial Equipment

  • Ice cream machines: rotary selection for flavor/consistency levels, push‑button to start the dispensing process

  • Foodservice equipment: multi‑stage power/speed control for ovens, mixers, and similar appliances

  • HVAC systems: fan speed step switching and function confirmation

Broadcast, AV & Security

  • Channel selection on broadcast mixing consoles and production switchers

  • Pan‑tilt control and menu confirmation for surveillance camera systems

  • Arm/disarm mode switching for security alarm control panels

Smart Home

  • Scene mode selection on home automation central control panels

  • Brightness level adjustment for smart lighting systems



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