16

3. Examples of SMT Applications

1.Infrared Reflow Soldering (IRS)

2.Vapor Phase Soldering (VPS)

3.Belt conveyer reflow oven

4.Double Wave Soldering (DWS)

5.Other Technologies

IRS is the most popular reflow soldering technology now available for surface mounting. It uses a sheath heater or infrared lamp as its heat source. PC board assemblies are continuously soldered as they are transferred through a tunnel furnace comprised of a preheating, heating, and cooling-stages.

With VPS technology, PCB assemblies are carried through a special inactive solvent, such as Fluorinert FC-70, that has been heated to a vapor state. As the saturated vapor condenses on the PC board surface, the resulting evaporation heat provides the energy for reflow soldering.

As PCB assemblies are transferred on a thin, heat-resistant belt conveyer, they are soldered by the heat from hotplates placed beneath the conveyer belt.

After components are glued to the PC board surface, the board assembly is transferred through a molten solder fountain (with the component side facing down). Then, the components are soldered to the board.

Other reflow soldering technologies include those of utilizing lasers, hot air, and pulse heaters.

2.Cautions for installation

1.Paste Soldering

Mounting pads on PC boards must be designed to absorb placement errors while taking account of solderability and insulation. Refer to the suggested mounting pad layout in the application data for the required relay product.

Paste solder may be applied on the board with screen printing or dispenser techniques. For either method, the paste solder must be coated to appropriate thickness and shapes to achieve good solder wetting and adequate insulation.

2. Relay mounting

For small, lightweight components such as chip components, a self-alignment effect can be expected if small placement errors exist. However, this effect is not as expected for electro-mechanical components such as relays, and they require precise positioning on their soldering pads.

If SMT relays are subjected to excessive mechanical stress from the placement machine's pickup head and damaged inside, their performance cannot be guaranteed.

Our SMT relays are supplied in tube packaging compatible with automatic placement processes. We also offer tape packaging at customer request..

Page 17
Image 17
Panasonic ASCT1F46E manual Examples of SMT Applications, Paste Soldering, Relay mounting

ASCT1F46E specifications

The Panasonic ASCT1F46E is an advanced conditioning unit designed to enhance indoor air quality while ensuring energy efficiency. As part of Panasonic's commitment to innovation, this model integrates state-of-the-art features that cater to modern living environments, making it a popular choice for both residential and commercial spaces.

One of the standout features of the ASCT1F46E is its advanced filtration system. Equipped with a multi-stage filter, it captures not only dust and allergens but also finer particles, providing a cleaner air environment. This is particularly beneficial for individuals with respiratory issues or allergies. The filter is designed to be easily replaceable, ensuring that maintenance is hassle-free and users can maintain optimal air quality without significant effort.

The unit utilizes a highly efficient inverter technology, enabling it to adjust the power consumption according to the cooling or heating needs of the space. This results in reduced energy costs while maintaining a steady temperature, making it an eco-friendly option. The inverter system minimizes temperature fluctuations, ensuring a consistent and comfortable atmosphere year-round.

In terms of user experience, the ASCT1F46E features a user-friendly remote control, allowing for easy adjustments from across the room. The unit also supports a variety of operating modes, including cooling, heating, dehumidification, and fan modes to suit different preferences and seasonal needs. Moreover, the quiet operation of the unit ensures that it functions with minimal noise, making it ideal for bedrooms, study areas, or any space where peace and quiet are essential.

The design of the ASCT1F46E reflects Panasonic’s attention to aesthetics as much as performance. The sleek and compact form factor allows it to blend seamlessly with various interior designs, while the stylish finish contributes to a modern look.

Another notable characteristic is its smart functionality, which can be integrated with home automation systems. This allows users to control the conditioning unit remotely via smartphones or smart home devices, providing convenience and flexibility in managing indoor climates.

In summary, the Panasonic ASCT1F46E stands out in the competitive landscape of air conditioning units. With its advanced filtration system, energy-efficient inverter technology, user-friendly features, aesthetic design, and smart connectivity, it promises to deliver superior comfort and air quality, making it an excellent investment for any modern space.