Membrane keypad manufacturer with 3M adhesive and LCD window
- Category: >>>
- Supplier: Shenzhen Haiwen Membrane Switch Co. Ltd.
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Product Overview
Description
Membrane switch flexible polycarbonate or polyester film printed with conductive paste made of the switch contact circuit is a contact switch.
Membrane switch 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.
The switch adopts thePCB. The wiring is high precision, low resistance and long lifetime. The closest pitch of pinout can reach 0.5mm. LEDs, resistor and other components can be welded. The switches are mainly used in medical equipment and machines as function keypad. Because it has good tactile and function well. Also, keypad can be customized based on customer’s design such as button icons, colors etc. Besides, the product including electrostatic shielding protect the function from static.
| 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: | 20Ω |
| 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. What is your terms of packing? A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment? A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.
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Q3. What is your terms of delivery?
Q6. What is your sample policy? |  |
Q7. Do you test all your goods before delivery? A: Yes, we have 100% test before delivery
Q8: How do you make our business long-term and good relationship? A:1. We keep good quality and competitive price to ensure our customers benefit ; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from. | |
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