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Single Sided PCB

Introduction：

Focus on the most basic of PCB, components focused on one side, the other side of the wire is concentrated.Because wires only appear on one side, so this kind of PCB is called single sided PCB.

Single panel wiring diagram is given priority to with the network printing, that is, in the copper surface printed on resistance agent, to prevent welding resistance after etching printed on mark, and then punching processing way to complete the parts guide hole and the appearance.In addition, part of a small amount of diverse products, are using photosensitive resistance agent forming pattern of the photographic method.

Operating temperatures range from 130 C to 230 C. Single sided boards are available with surface finishes including Organic surface protectant (OSP), Immersion Silver, Tin, and Gold plating along with both leaded or lead-free Hot Air Solder Level (HASL).

Material：

Single sided PCB base material in paper phenolic copper paper laminated board, epoxy resin copper laminated plate is given priority to.

Structure：

First, the copper foil to be etched, etc. Process to obtain a circuit required, a protective film to be drilled to expose the corresponding pad. After cleaning and then rolling method to combine the two. Then the pad portion exposed gold plating or tin protection.

Production Process：

Single copper-clad plate - blanking - photochemical method/screen printing image transfer - remove corrosion was printed - cleaning, dry - hole machining - shape - dry cleaning - printing resistance welding coating - cure - printing mark symbol - cure - dry cleaning drying - pre coated flux - a finished product

Application

Single sided PCB most use in the radio, heating machine, cold storage, washing machines and other electrical appliances product, as well as the printer, vending machines, LED lighting, electronic components, such as commercial machine circuit

Customized FR4 Single Sided PCB Membrane Keyboard Switch With Metal Dome

Large Image : Customized FR4 Single Sided PCB Membrane Keyboard Switch With Metal Dome

Product Details:

Place of Origin:	Shenzhen
Brand Name:	BEZ
Certification:	ISO9001
Model Number:	390-9-1
Circuit:	0.125 PET or 0.125 flexible PCB keyboard

Payment & Shipping Terms:

Minimum Order Quantity:	100 pcs
Price:	negotiation
Packaging Details:	50 pcs each poly bag and 2000 pcs in carbon box
Delivery Time:	7-10 days
Payment Terms:	T T WestUnion
Supply Ability:	1000000 pcs each day

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Detailed Product Description

Highlight:

single membrane switch

custom membrane switch

Customized FR4 Single Sided PCB Membrane Keyboard Switch With Metal Dome

Quick Detail:

> Graphic overlay : texture

> Second layer : adhesive DT 6100

> Adhesive : 3M 467

> Circuit layer : FR4 single – side PCB FR4 double – side PCB

> Button : embossed flat poly dome metal dome

> Led color : green,red ,yellow and white single color

> Pitch : 1.0 mm

> Push force : 280 g

> Main electronic compents : LED , metal dome connector

> Operating condition : 40°c,90%~95%,for 240 hours

> Life span : 5000000 times

Description:

> Surface :Matte glossy

> Overlay button: embossed 0.35 mm

> Metal dome size : Φ 8 mm metal dome

> Window : no

> Led window : no color coated translucent

> PCB gold washed : yes not

> Tolerance:0.05 mm

> Water proof class : IP 67

> Connector : with

> Matching color: Pantone and RAL color matching system.

Applications:

1. A. For measuring device, such as analytic instrument, nautical intrument , medical equipment and so on

B. For mechanical and electrical products such as CNC machine electric weighing ,robot ,printing machine, function keyboard, monitor, printer, graphic plolter and so on .

C. For OS office system , such as telephone set ,fax machine, copy cat ,counter and so on

Note:

Metal dome’s feet can’t be folded 90 degree toward its top when use , it will reduce the life span of metal dome

Specifications

1. Electrical
Maximum Circuit Rating: 35V(DC),100mA,1W	35V DC,100mA,1W
Contact Resistance: 10Ω~ 500Ω (Varies from the trace length and material)	10Ω~500Ω
Insulation Resistance: 100MΩ 100V	100MΩ at 100V DC
Dielectric: 250 Vrms (50~60Hz 1min)	250V Rms(50-60Hz 1min)
Contact Bounce: < 5ms	5ms or less
Life: Flat: ≥ 5million times
Tactile: ≥ 1 million times Duraswitch: ≥ 10million times	Flat type 60g~300g(2~10OZ)
Tactile: ≥ 1 million times Duraswitch: ≥ 10million times	Tactile type 150g~400g(6~14OZ)
2. Mechanical	Flat type 0.1~0.5mm
2. Mechanical	Tactile type 0.6~1.5mm
Actuation Force: Flat: 57~284g(2~10oz) Tactile: 170~397g(6~14oz)	Flat type Five million closures or more Tactile type one million closures or more

Switch Height: Flat: 0.1~0.5mm
Tactile: 0.6~1.5mm	-40°c~+80°c

Why to choose Shenzhen boerzhuo membrane switches?

1. No need to worry about the qualities (We take response if our reason lead failure ).

2. Any products in our factory are did life span test ,circuit test ,every step is in good quality control ,we insist on ,quality is depend on the making step not the QC workers ..

3. We are specialized ,can help to design and make good suggestion .

4. Except membrane switch and touch screen, we can also do different types of assembly, such as membrane switch and touch screen with FPC, PCB ,silicone rubber ,metal backer ,plastic bezel and so on.

5. We can accept small quantity order and offer competitive price.

6. Strict quality inspection ,100 % function testing ,and we can also do specified testing ,such as humility testing ,life expectancy testing ,actuation force testing.

A: What’s the lead time for sample and mass order ?

B: 7 Days is okay after drawing confirmed for sample ,mass order usually 15-20 days ,depend on the products..

A: How long is your quality guarantee period

B: in usually,3 months.

A:Great, TKS. Do it.

Tag:

Contact Person: Miss. aaa

Tel: 86 755 8546321

Fax: 86-10-66557788-2345