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[China]
Trade Verify
Address: East Side, 3rd Floor, Yinjin Industrial Building, Xixiang, Baoan, Shenzhen, Guangdong, China
Contact name:jessica Ling
Shenzhen Haiwen Membrane Switch Co., Ltd. |
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Verified Suppliers
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Membrane keypad flexible polycarbonate or polyester film printed with conductive paste made of the switch contact circuit is a contact switch.
Membrane keypad has the advantage of the whole flat, thin shape, quality, small, dust-proof, good, good water resistance, is a semi-enclosed structure. In addition, the panel design, and great freedom of choice of colors. Positive range of applications of desktop computers, copiers, fax machines, toys, square computer, word processor and other areas of expansion.
LEDs welded on the FPC flexible circuit layer make into the membrane keypad. 25 Everlight 0805 LED lights are assembled in the keypad, metal domes added to the membrane keypad provide the upper circuit layer. The LED windows should be embossed. All of these details are making the construction stable. Using F200 matte PET makes the overlay looks graceful. The LED keypad are widely used as industrial control keypad, because of good tactile buttons, powerful functions. The keypad can be customized based on customer’s design such as button icons, colors etc. The main characters are printed wiring, low resistance and function well. Item HW-91206003 with strong function is able to weld with colorful LEDs, adopting waterproof circle structure and 3M9495LE. So keypads are suitable for high air humidity environment.
| The main technical parameters of Haiwen membrane switch | |
| (1) Electrical Properties | |
| 1, operating voltage: | ≤ 50VDC |
| 2, working current: | ≤ 100mA |
| 3 Contact resistance: | 0.5 ~ 5Ω |
| 4 Insulation resistance: | ≥ 100MΩ (100VDC) |
| 5, substrate voltage: | 2kDVC |
| 6, spring time: | ≤ 6ms |
| 7, loop resistance: | 30Ω |
| 8, insulation ink voltage: | 100VDC |
| (2) Mechanical Properties | |
| 1, reliability, service life: | > 1 million times |
| 2, closed displacement: | 0.1 ~ 0.4mm (no touch-type) 0.4 ~ 1.0mm |
| 3, health standard for power: | 280g Power |
| 4, Silver migration: | In 55 ℃, humidity 90%, 56 hours later, the second-line between the 10MΩ/50VDC |
| 5, Silver online no oxidation, no impurities | |
| 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 | 2.54mm |
| 8, lead anti-curvature, with d | 10mm steel rod line pressure roller 80 constantly. |
| (3) environmental performance | |
| 1, operating temperature: | -40 ℃ ~ +80 ℃ |
| 2, storage temperature: | -40 ℃ ~ +85 ℃ temperature of 95% ± 5% |
| 3, atmospheric pressure: | 86 ~ 106kDa |
| (4) print index | |
| 1, print size deviation | ± 0.15mm, clear code looks bad ≤ 0.1mm edges |
| 2, chromatic deviation | ± 0.11mm/100mm, insulated cover all the Silver Line Ink |
| 3, no ink dispersion, writing non-defective | |
| 4, chromatic aberration is not more than two | |
| 5, may have creases, paint stripping | |
6, transparent windows transparent clean, uniform color, not a scratch, and impurity | |
Q1:Are you a factory or trade company?
A: XingDa is a PCB/FPC/PCBA manufacturer/factory. We
pecialize in PCB/PCBs Board for 6 years.
Q2:Is my PCB file safe if I send it
to you for manufacturing?
A: We respect customer's design authority and will never
manufacture PCB for someone else without
your permission. NDA is acceptable.
Q3:Can you copy PCB samples without Gerber file?
A: Yes, we can clone the PCB according to
your samples.
Q4:What payment do you accept ?
A: TT/ Western Union/ Paypal/ Unistream.
Q5: What's your shipping way ?
A: 1. We have our own forwarder to ship goods by
DHL, UPS, FEDEX, TNT,EMS.
2.
If you have your own forwarder, we can
cooperate with them.
Q6: How about the MOQ?
A: For PCB: 1 pcs
For PCBA: 1000pcs
Q7: What's your main market?
A:Europe, USA, Brazil, Russia, Turkey, Iran, Austrialia,
Singapore...
