Four Legged Metal Domes Membrane Keypad Repair Suppliers Level Snap Action
Four Legged Metal Domes membrane keypad repair suppliers Level Snap Action Introduction Jasper has accumulated many years of membrane switch making experience, and most of our people have been in this business for more than five years. We maintains a work force of highly trained engineers who...Send Inquiry
Four Legged Metal Domes membrane keypad repair suppliers Level Snap Action
Jasper has accumulated many years of membrane switch making experience, and most of our people have been in this business for more than five years. We maintains a work force of highly trained engineers who are able to quickly respond to customers differentiate demands for membrane keypad products.
Membrane switch has many characteristics, eg light and slim, dust-proof, insulation, anti-shock and easy assemble. By virtue of those features, membrane switch are extensively applied in medical device, industrial control, home electronics, and precise instrument industries etc.
(1) Electrical Properties
1, operating voltage: ≤ 50VDC
2, working current: ≤ 100mA
3 Contact resistance: 0.5 ~ 10Ω
4 Insulation resistance: ≥ 100MΩ (100VDC)
5, substrate withstand voltage: 2kDVC
6, response time: ≤ 6ms
7, loop resistance: 50Ω, 100Ω, 200Ω (to be determined by customer)
8, dielectric ink withstand voltage: 100VDC
(2) Mechanical Properties
1, reliability, service life:> 1 million times
2, key stroke:
0.1 ~ 0.4mm (non-embossed type)
0.4 ~ 1.0mm (embossed type)
3, keypad press force: 15 ~ 750gf
4, silver paste migration: In 55 ℃, humidity 90%, 56 hours later, 10MΩ/50VDC at the second-line
5, no oxidation and no smudges on silver paste
6, Silver width ≥ 0.3mm, the smallest interval of 0.3mm, line edges <1 / 3, the line gap of <1 / 4 width
7, pin spacing standard 2.54 2.50 1.27 1.25mm
8, tail anti-curvature the tail circuit need to be workable after being rolled by dia.10mm steel rod for 80 times continuously.
(3) environmental performance
1, operating temperature: -20 ℃ ~ +70 ℃
2, storage temperature: -40 ℃ ~ +85 ℃ temperature of 95% ± 5%
3, atmospheric pressure: 86 ~ 106kDa
(4) printing criteria
1, printing dimension deviation ± 0.15mm, line blur ≤ 0.1mm
2, printing registration deviation ± 0.11mm/100mm, silver paste to be covered completely by dielectric ink;
3, no ink dispersion, imperfect font allowed
4, color difference value is less than 2, which measured by Spectrodensitometer
5, no creases, ink-laminating problem stripping
6, transparent windows to be clean and even, no scratch and smudge on surface
Product features and applications
1.Beautiful appearance;clear image-texts.
2.Well sealing performance and wear resistance;long life span.
3.Can be pasted on the different flat and curved surface.
4.Optional kinds of overlay materials,such as PC,PET,PMMA,tempered glass,etc.
5.Waterproof,anti-deformation,anti-pollution,anti-UV,high temperature resistance,strong viscosity.
Membrane switches apply to the fields of aeronautical facility, military equipment, medical instruments,intelligence control, commercial appliances, security products, etc.
Membrane switch, also known as touch switch, is the first to develop the development of the aviation industry, and in modern times quickly spread a set of thin film panel and switch function of the new electronic switch. Because of its beautiful appearance, small size, good sealing, easy assembly, insulation and mechanical shock resistance and other characteristics of many good features in industrial control, household appliances, instrumentation and other industries have a wide range of applications.
In simple terms, the membrane switch structure consists of several layers of soft plastic layers, and by the film / adhesive material bonding. Its main structure for the panel and line, the process for the silk screen printing, punch and combination. Through the addition of layers or the original way you can try to diversify functions, such as metal shrapnel, anti-radio frequency interference, cold light and surface mount components.
The membrane switch is mounted on a housing with a flat surface, and there are generally flexible lines that pass around the connector on the board. In contrast, the panel only need to open a slot on the surface to allow the control device on the circuit board through.
Intimate service, worry-free after-sales
This is a short list of our most frequently asked questions. For more information about JASPER, or if you need support, please contact us.
What information do i need to provide JASPER with for a quote?
A blueprint or sketch with dimensions, colors and materials. We can also quote from a sample.
What are typical dome sizes?What is the actuation force of domes?
8 mm, 10 mm, 12 mm, 14 mm, 20 mm.Dome Force ranges from 85 grams to 700 grams.
Dome type,is tactile feel needed?
Both metal (stainless steel and Gold Plated) poly domes are offered. Tactile feel is customer’s preference.
Which type of tactile feedback dome works best in a higher environment?
Stainless Steel domes will out perform a polyester tactile dome in this situation.
Why should i choose JASPER?
As a recognized industry leader for over 7 years,JASPER already is the standard of high-quality human interface products.
How long does it take for you to produce a membrane switch?
Our rapid prototype manufacturing process allows for turnarounds as quick as 10 days! Since each project is unique, please call for current estimates.
Can you help us in designing our product(label,switch,touch,screen,PCB,etc.)?
Our experts can help with your project from design to delivery. We have all the latest design equipment and software to cater to your needs.
Its required that we receive final approval from you before production commences. Our CAD team has the ability to create from scratch. Call for details.
What should you do if there is any defect?
We will analyze the reason at once and negotiate replenishment problems with customers.
Flexible Printed Circuits Used For Electronic Products
Flexible Printed Circuits Introduction
Flexible Printed Circuits (FPC) is used as interconnection to transmit signals for electronic products by developing circuits on flexible Copper Clad Laminate through processes of exposure, etching.,..etc. FPC is mainly applied to surface mount electronic components and connect PCB & PCB or connect PCB & LCD, to carry out the function of electronic product.
Based upon FPC’s characteristics of “thin” and “flexible”, there will be a great growth of FPC as the electronic market continues to demand “thinner and thinner” and “smaller and smaller”. Relatively, the development of FPC product will help flourish the electronic market as well.
Single-side: Applied with single side material to make pattern on one side then add the cover layer on the same side
Double-side: Applied with double sides material to make pattern on both sides then add the cover layer on each side
Single-side double access: double access Applied with single side material to make pattern but make some window on base film and add the cover layer on pattern top. The final products will have single layer copper but two sides access possibility
Multi-layer: Binding a single side and a double sides FPC together or binding a double sides and a double sides FPC together
Rigid-flex board: Binding flexible and rigid boards structure together in same units as one part
Membrane Switch Connectors: What are They and What do They do?
Membrane Switch Connector Options
One consideration for your membrane switch design is how to connect the membrane switch with the brains that control your product. Basically, Membrane Switch connectors connect the keypad and the device it will control. Connectors consist of a contact device and a molded plastic housing, but membrane switch connectors are certainly not something to choose lightly. Sometimes, knowing which connector to use for an application can be difficult. You need to think about ways to accommodate connector durability and minimize unwanted space when deciding how to terminate your membrane switch.
Flexible membrane switches are connected by a flexible tail that is cut from the circuit material. This flexible tail can be connected to a circuit board with a variety of single row connectors designed for flex circuits. Or, the tail can be designed to interface with a Zero Insertion Force (ZIF) connector. Typically, the lowest-cost interconnect is a ZIF connector. Flex circuits may also be terminated with solder tabs that can be directly soldered onto the circuit board.
ZIF connectors have no physical connector on your membrane switch and rely on a receptacle connector that is available from numerous manufacturers. It is important to choose a ZIF connector that is suggested for membrane switches and to keep in mind that smaller pitches are available in polyimide flexible printed circuits only.
ZIF connectors are increasingly common in several applications, especially when connecting to a small display or keyboard. ZIF connectors meet a range of requirements including low profile, lightweight, secure, and removable connections. ZIF connectors are appropriate for more complex applications and allow for higher levels of integration. For ZIF connections, the connector system is not on the membrane tail, but on the PCB. The tail of the circuit is inserted into the ZIF connector to create the contact, and a stiffener is laminated under the tail to ensure stability and maintenance of the electrical contact. ZIF connectors may have anywhere from 2 to 30 positions on a single row, and distances of between 1mm and 2.54 mm are available.
Keep in mind that ZIF connections degrade with insertions, so the maximum number of insertions should not exceed 10 cycles. It’s also important to remember to take care when placing the tail die but in relation to the printed traces, since resistance in the circuit may increase in spacing of less than 1mm where the circuit traces are thinner.
Male, Female, or Solder Tab Housings:
These types of membrane switch connectors are considered to be more reliable against heavy shock and vibration. They also are known for more ease of assembly. With a much larger connection, male, female, and solder connectors have pins crimped to the circuit and are available with many different housing features. The tail pitch is available in .100” spacing.
Crimpflex Connecting System by Nicomatic
Nicomatic Crimpflex membrane switch connectors conform to Berg, Molex, and Amp membrane switch connecting specifications by utilizing common pins in a specific housing to meet connection requirements. The Crimpflex crimping presses are dedicated to the manual and pneumatic crimping of male and female contacts and are known for their reliability, ruggedness, simplicity of use, speed, and precision. The Crimpflex contacts ensure mechanical retention and electrical contact by piercing the conductor in six points. The contacts are available in male, male solder tab, and female versions; the female contacts are selective gold or tin-plated. Crimpflex connectors’ standing housings are available in the OF series, which fits with the most common interfaces, or the OM series, which interfaces with cables and comes with an locking system that can be oriented to meet your specifications.
Crimpflex connectors comply with rigorous electrical and mechanical requirements and provide exemplary connection, especially in applications where high vibration is expected. They are mounted by installing the pins on a circuit tail and assembling it into a molded plastic housing. The crimping pierces the conductor, ensuring mechanical retention at two points and electrical contact at four points, with the lowest possible contact resistance. Designers and engineers may specify whether they want low or high insertion force or locking versions.
graphic overlays that are durable and functional
We supply graphic overlays (fascias) that are cost effective, durable and functional.
They are used to bring attention to your product and its features, facilitating functionality.
Three critical aspects of any Graphic Overlay are Form, Fit and Function. Our Art Department Staff can aid you in the design of your graphics.
Our Graphic Overlays provide a colourful first impression and make instructions clear for your end user which results in a product that you and your customers will be proud of.
Graphic Overlay are ideal for recessed moldings, switch assemblies, or front panel graphics. They are printed on the underside (sub-surface) of chemical and abrasion resistant plastic materials.
Design features that can be incorporated include: backlit-deadfronted – LED/LCD display window areas, selective surface texturing, embossing, zoned adhesive, hardcoating, color matching and/or 4-color process printing.
Glossy, Matte, Textured, Brushed, and Selectively Textured finishes are available. Graphic Overlay are used in variety of industries like Weighing scale, Appliances, Instrumentation ,Medical Field, Computers, Electronics ,HVAC.
We work with you to determine the most suitable material and thickness to suit your applications. Polyester and polycarbonate are the most commonly used substrates. We also offer unique substrates with UV inhibitors for harsh exterior conditions.
Specialised adhesive backings can be applied to adhere to a wide variety of substrates in various conditions. i.e. Exterior use, Polypropylene, powder coating etc.
Graphic overlays are used in all types of applications including electronic equipment, appliances, telecommunications equipment, fitness equipment, medical equipment, security, vending machines and a wide variety of other products.
They are ideal for use with tactile switches where a membrane feel is required.
We offer many advantages including:
Full in-house design team
Superior Graphic Capabilities
Various Textures & Finishes
Specialised adhesive backings
Sub -surface print
Unlimited colours and colour matching
Die-cutting, Routing & Embossing
Indoor, Outdoor and/or Harsh Environment Durability