Flat Keys Non-tactile Membrane Switch
High quality flat keys non-tactile for membrane switch technologies 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
Flat Keys Non-tactile Membrane Switch
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.