제품 애플리케이션
NT-series: Without
ST-series: With two short legs: 0.8*0.8mm(width * length of the legs)
MT-series: With two middle legs: 0.8*1.5mm
LT-series: With two long legs: 0.8*3.0mm
Shanyo T-series snap domes:
| 1 | Diameter | 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm. |
| 2 | 작동력 | 150g, 180g, 200g, 250g, 280g, 320g, 350g, 400g, 500g, 550g, 600g |
| 3 | Plated | Nickel and gold plated are available. |
Details of the Snap Dome
Snap Dome Structure
Snap Dome of pot flakes
Snap Dome as a metal dome. Compared with traditional silicone buttons, conductive film has a better feel and longer life. It can also indirectly improve the production of various types of switches using conductive film. efficiency. The metal spring on the dome button is located on the conductive part of the PCB (mostly located above the gold finger on the circuit board). When pressed, the center point of the spring is concave and contacts the circuit on the PCB, thus forming a circuit. , the current passes through, and the entire product can work normally. This is how it works.
Snap Dome The structure of the product is categorized:
(1) Single layer structure
This is the simplest structure at the beginning, the metal shrapnel is located underneath the Mylar (a layer of PET with adhesive), and there are ventilation holes to ensure the basic feel and use.
(2) Double-layer structure
A single layer of the conductive film is different, it has a layer of Spacer (spacer), shrapnel better paste, and Mylar adhesive on top, and maintains good contact with the circuit board, with a better feel (some similar to the membrane switch ‘bulge’) In addition, the double-layer structure of the conductive film on the ventilation slots can be more effective in preventing the PET layer by the In addition, the ventilation slots on the double-layer structure of the conductive film can more effectively prevent the PET layer from being scratched by the blade burrs of the shrapnel, etc., and can also prevent dust from entering the PET layer.
Metal snap dome according to the needs of different product structures and grades
Nickel plating, silver plating, gold plating
Smooth
연락처
Strong
conductivity
Stable
rebound
Good feel
T-series snap domes advantages
Snap Domes has several major advantages: smooth contact, strong conductivity, stable rebound, and good feel. Due to its good conduction performance, it can play a good switch activation and control role between the operator and the product.
Snap Dome Part Number Introduce
| NO. | 제품 | Shape | Dimple | Length of legs | Range of diameter |
| 1 |  | Triangle | Four dimple | No legs | 4-8mm |
| 2 | | Triangle | Four dimple | No legs | 9-11.5mm |
| 3 | | Triangle | Four dimple | No legs | 12-15.2mm |
| 4 |  | Triangle | Four dimple | 0.8mm legs | 4-7mm |
| 5 | | Triangle | Four dimple | 0.8mm legs | 8-12mm |
| 6 | | Triangle | Four dimple | 1.5mm legs | 4-8mm |
| 7 | | Triangle | Four dimple | 1.5mm legs | 9-12mm |
| 8 | | Triangle | Four dimple | 3.0mm legs | 4-8mm |
| 9 |  | Triangle | Four dimple | 3.0mm legs | 9-12mm |
무료 드로잉 디자인 받기
문의하기DOM SWITCH
Metal Snap dome PCB Pad Shape
C -series
S -series
F -series
T -series
O -series
Classification of Adhesive for Snap Domes:
Transparency: Better alignment
- White: generally used with light guides (reflective)
- Black: generally used to block out light (obscuring the content)
- Yellow: it belongs to high-temperature resistant material (can exceed SMT high-temperature effect for a short time)
- Silver screen: grounding anti-static effect Transparency: Better alignment
- White: generally used with light guides (reflective)
- Black: generally used to block out light (obscuring the content)
- Yellow: it belongs to high-temperature resistant material (can exceed SMT high-temperature effect for a short time)
- Silver screen: grounding anti-static effect
How to choose snap dome
Four-legged snap dome
Round snap dome
Blong snap dome
Tactile snap dome
Cross-shaped snap dome
Special-shaped custom snap dome
4 Legs Dome Part Number
| Model Number | 표준 | Surface treatment | 매개변수 | Load | |||
|---|---|---|---|---|---|---|---|
| Diameter | Stroke | Height | |||||
| C-series | 0/1/4/5 bumps | Gold/Silver/Nickel Plating | 3-10mm | 0.14-0.19 ±0.05 | 0.21-0.25 ± 0.03mm | 100gf-500gf | |
| F-series | 0/1/4/5 bumps | Gold/Silver/Nickel Plating | 4-20mm | 0.23-0.28 ±0.05 | 1.40-1.70 ± 0.03mm | 100gf-600gf | |
| O-series | 0/1/4/5 bumps | Gold/Silver/Nickel Plating | 4×2.88mm ~5×4mm | 0.15-0.23 ±0.05 | 0.21-0.29 ±0.03mm | 100gf-250gf | |
| T-series | Long legs/short legs/no legs | Gold/Silver/Nickel Plating | 3.15-12mm | 0.15-0.23 ±0.05 | 0.21-0.25 ± 0.03mm | 200gf-600gf | |
| Custom snap domes | Special shapes | Gold/Silver/Nickel Plating | Customization is available according to customer requirements | ||||
| Note: All types of metal snap domes can be customized according to requirements. | |||||||
Tactile snap dome: when encountered in a small space can only put down the smaller dome and at the same time the need to have a good feel and at the same time must meet the situation of greater pressure, tactile snap domes are the best choice; in addition is also divided into two kinds of feet with and without feet, which is by the thickness of the PCB board and the assembly process to choose.
Metal Dome! Widely used
Applied to TV remote controls, air conditioner remote controls, various button facilities, and other equipment.
Metal dome
T-series snap domes, characterized by their triangular shape, are versatile switches designed to be mounted on double-sided printed circuit boards, flex circuits, or membrane switch panels. These domes are widely used across various industries, including electronic toys, desktop phones, and medical equipment, due to their reliable tactile feedback and adaptability to different electronic interfaces.
Elevator Tactile Dome Switch Dome Arrays
Remote Control Dome Arrays
PS Remote Control Dome Arrays
Medical Instrument Dome Arrays
Mobile Phone Keys Dome Arrays
Metal Snap Dome Packaging
Focusing on the packaging options for snap domes or metal domes. Here’s a summary of the common packaging methods:
Bulk Packaging by Bag
Custom Packaging
Taped Reel Packaging for Snap Domes
The choice of packaging method depends on factors such as cost, volume, ease of use, and the specific needs of your application.
Processing of dome arrays
Drawings and materials checks
Shanyo Metal Domes Factory Advantage
Metal dome production workshop
Automatic attachment workshop
Mold
Tactile snap dome
Cross-shaped snap dome
Special-shaped custom snap dome
Special-shaped custom snap dome
Special-shaped custom snap dome
COMPANY CORE ADVANTAGE
Share innovation
actively communicate with domestic and foreign counterparts, cooperate, share technological achievements, constantly develop more new products to enrich the product catalog of enterprises, and strive to develop with old and new customers and colleagues in the industry who patronize our company.
Professional
The company specializes in the research development and production of metal snap dome pan discs and conductive film of metal snap dome. It has very rich experience and can provide different dome solutions according to customers ‘needs.
Overseas Quality
FPC cables are extremely flexible, able to bend, twist, or fold without harming the circuitry, making them simple to incorporate into devices with restricted space or complex layouts.
Rich products
from round, cross (four corners), waist round snap dome to custom snap dome switch, from single-layer structure, double-layer structure, EMI printing, Rubber structure.
Strict control
from the purchase of raw materials, mold design and production, product production, quality testing, packaging sales, and other aspects of strict operation by the requirements of ISO 9001:2015, to ensure the consistent reliability of products;
High-quality service
punctual delivery; free technical solutions and samples; quick response (domestic customers respond 2 hours after mail receipt, foreign customers respond 12 hours); after-sales service 1-hour fast processing.
What is a snap dome?
Metal snap domes (tactile metal domes) are made of stainless steel and are momentary switch contacts. Combined with printed circuit boards (PCBs), flexible circuits, or membranes, they become normally-open tactile dome switch.
This metal dome has the following characteristics and advantages:
I. Material characteristics
The stainless steel material gives the metal dome good durability and stability. It can withstand multiple presses without being easily deformed, ensuring the long-term reliability of the switch. At the same time, stainless steel has good electrical conductivity, which can effectively transmit electrical signals to ensure the normal operation of the switch.
Second, the working principle
When an external force is applied to the PCB, flexible circuit, or film combined with the metal dome, the metal dome will deform, thus realizing the closure of the circuit. Once the external force disappears, the metal dome will quickly return to its original state, breaking the circuit and forming a normally open state. This instantaneous switching action provides clear tactile feedback, allowing the user to perceive the success of the operation.
III. Application Areas
1. Electronics: Widely used in a variety of electronic devices such as cell phones, tablet PCs, remote controls, etc., providing users with a convenient operating experience.
2. Industrial control: In industrial automation equipment, a dom switch can be used to control the start and stop of various functions.
3. medical equipment: due to its reliability and accuracy, tactile dome switch are also suitable for various operation controls in medical equipment.In conclusion, metal snap domes play a key role as an important switching component in electronics and related fields. Its high performance and reliability make it ideal for many product designs.
What is the approximate lifespan of the Snap Dome?
- The service life of a metal dome is affected by a variety of factors, such as dome material, shape, size, production process, and the environment in which it is used.
Generally speaking, the life span of the metal dome varies greatly in China. The life span of a cross-shaped dome is usually around 200,000 to 300,000 times; the life span of a round snap dome, such as 4c, c5 and other smaller domes, is about 700,000 to 800,000 times in China. And can reach 500,000 to 1 million times the life of the dome is relatively small.
However, with some metal domes made of special technology or high-quality materials, their life may be longer. For example, in the metal dome used in some mouse axle bodies, after optimized design and material selection, the theoretical service life can reach 80 million times.
If the metal dome is frequently subjected to high-intensity pressure, intense friction, or in poor environmental conditions (such as high temperature, high humidity, etc.), its life span may be shortened accordingly.
In order to extend the service life of metal domes, in the process of product design and use, you can try to choose reliable quality domes, and avoid excessive use or use of related products in extreme environments. At the same time, reasonable design and manufacturing process can also help to improve the life and performance stability of metal dome.
How do snap domes work?
Snap domes work through a combination of mechanical and electrical principles. Here’s how they operate:
Mechanical Action:
When at rest, the snap dome is in a convex shape. As a force is applied to its center, it starts to deform. The metal of the snap dome is resilient and has a certain amount of springiness. As the force increases, the dome gradually flattens out.
At a certain point, known as the “snap point,” the dome suddenly inverts and snaps into a concave shape. This rapid inversion creates a distinct tactile feedback, often described as a click or a pop. This tactile sensation is useful in applications where users need confirmation of an action, such as pressing a button on a keypad or a switch.
Electrical Function:
Snap domes are often used in conjunction with a printed circuit board (PCB), flex circuit, or membrane. When the snap dome is in its un-actuated state (convex), it is electrically open, meaning there is no electrical connection between the contacts it is designed to connect.
However, when the dome snaps into its concave state due to the applied force, it makes contact with the underlying electrical contacts on the PCB or other substrate. This creates an electrical connection, allowing current to flow through the circuit. Once the force is removed, the snap dome returns to its original convex shape, breaking the electrical connection again.
In summary, snap domes work by mechanically snapping from a convex to a concave shape when pressed, providing tactile feedback, and simultaneously creating or breaking an electrical connection to control the flow of electricity in a circuit.
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