Payment & Shipping Terms:
|Base Material:||FR-4/aluminum/ceramic/cem-3||Board Thickness:||0.15mm|
|Copper Thickness:||0.5-3OZ||Min. Line Spacing:||12mil|
|Min. Line Width:||0.075mm/0.1mm(3mil/4mil)||Min. Hole Size:||6mil (0.15mm)|
|Surface Finishing:||HASL Lead Free/OSP/Soft Gold||Product Name:||High Quality Smt Stencil Frame For PCB/PCBA Printing|
|Type:||Pcb Stencil||Solder Mask:||Green. Red. Blue. White. Black.Yellow|
|Service:||PCB/Components Sourcing/Soldering/Programming/Testing..||Name:||SMT Stencil / Laser Stencil With Frame /Stainless Pcb Stencil|
|Solder Mask Color:||Blue.green.red.black.white.etc||Pcb Standard:||IPC-II Standard|
|Usage:||OEM Electronics||Impedence Control Tolerance:||±5%|
smt solder paste stencils
SMT Stencil for SMT PCB Assembly with Multi Layer Immersion Gold PCB
1: Membrane switch has below main advantages.
1) Small and portable. Generally a membrane switch is several or dozens grams, it is quite convenient to carry or disassemble.
2) Aesthetic appearance. It adopts advanced silk screen printing technology, with special design; We can provide any custom solution you need.
3) Sealing. To meet customer's unique needs of the program, we can design the membrane switch to be water- proof, grease proofing, dust-proof, and static-free...With unique technologies, the membrane switch can endure a high voltage.
4) Good conductivity. The circuitry is printed with carbon, silver, copper foil and so on, it can be freely folded, and the resistance can be limited according to customer's specification.
5) Low cost. Membrane switch is low price, some even costs only cents. Compare to other electronic components which have same function, it is exactly cheap price.
6) Long lifetime. The materials are with high isolation, thermal resistance, fold resistance and rebound resilience. Moreover, the graphic can not be damaged because of its second surface printing; The lifetime is usually above 3 years.
7) Tail with or without connector (male or female pin).
2: Product's direction:
To analyze products in current market, most of them are getting to be short, small, lightweight and thin. Membrane switch is just in accordance with this design, which is an electronic component that in combination of art and technology.
3: Type of membrane switch:
Main types: There are many different types and layouts of membrane switch, its basic function like travel, operating force, life time mainly depend on type of key and material. The main types can be sorted as follows:
Membrane switch with flat keys, membrane switch with embossed keys (rectangle or dome), membrane switch with metal dome or polydome, tactile or non-tactile, membrane switch with LCD window or embedded LED, and so on...
1. Circuit rating: 35V (DC), 100mA, 1W
2. Contact resistance: 10 --500 (According the trace length and materials to comfirm)
3. Insulation resistance: > 100M 250V DC
4. Contact bounce5ms Dielectric withstand: 250VRms (50-60Hz 1min)
5. Life expectancy: Flat type500 million times, tactile type100 million times
6. Mechanical Properties Actuation Force: Flat type 57-284G (2-10 Oz), tactile type 170-397g (6-14 Oz) Switch stroke: Flat type 0.1-0.5mm, tactile type 0.6-1.5mm7. Operating Temperature: -40 C - +80 C, Storage temperature: -40 C - +85 C Humidity: 40 C, 90% -95%, 240 hours
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A. Excellent flexibility
B. Reducing the volume
C. Weight reduction
D. Consistency of assembly
E. Increased reliability
F. Controllability of electrical parameter design
G. The end can be whole soldered
H. Material optionality
I. Low cost
J. Continuity of processing
K. Professional and experienced engineers
L. More than 15 years of experience
High Frequency Singer Board PCB is applied to Touch screen, LED display soft board,Tablet antenna soft board.
Hot Tags: high frequency single board pcb, China, factory, manufacturers, suppliers, quotation, made in China
|Payment Terms:||L/C, T/T, Western Union, Paypal, Money Gram|
|Type:||Rigid Circuit Board|
|Material:||Fiberglass Epoxy Resin + Polyimide Resin|
|Flame Retardant Properties:||V0|
|2||HDI Type||1+N+1, 2+N+2|
|3||Material||CEM3, FR-4, Halogen Free, Aluminum-based, Teflon,Rogers, Getek, Nelco, PTFE, Polyimide etc|
|5||Board Size||Max||600*1000mm (24"x40")|
|6||Copper Thickness||Outer layer||1oz~6oz|
|7||Min. Line Width/Space||4/4mil(0.1/0.1mm)|
|8||Finished Hole size||Mechanical||0.20~6.30mm|
|9||Blind/buried via(Mechanical)||0.2mm (min)|
|12||Hole Position Tolerance||±0.05mm (2mil)|
|13||Bow & Twist||≤0.75%|
|15||Thermal stress||288 degrees centigrade & 20 Sec|
|17||Soldermask color||Green, Red, B|
|PCB Type||Single-side pcb , Double side pcb , Multilayer pcb , Aluminum base PCB
HDI board pcb , High Tg pcb and so on
|Base Material||XPC ,CEM-1 , CEM-3 , FR-1 , FR4 ,High TG FR4 ,Aluminium , Lead Free Materials (Rohs compliant ),High Frenquency Material and so on|
|Layer No .||1-18 Layers|
|Surface Finish||HASL , HASL Lead Free , Immersion Gold ,Gold Plating , Gold Finger , Immersion Silver , Immersion Tin , OSP ,Peelable soldermask and carbon ink|
|Silk Screening||In any color such as green ,white ,nlue ,red , black and so on|
|Testing||Electrical Testing , Controlled Impedance Testing , Flying Probe Test , X-Ray Inspection AOI Test|
|Environment||Clean room environmen , Dust-free workshop|
|Transportation||Fedex ,DHL,UPS and so on|
|Files||Gerber ,Protel ,Autocad ,Powerpcb , Orcad ,etc|
Contact Person: Astrid