In the connector market, especially in projects that replace imported brands and adopt the "domestic connector" solution, "fracture" is a headache that is easy to ignore. If a connector breaks under the stress of frequency, mechanical load, or environmental stress, it not only increases maintenance costs significantly but may also lead to system downtime or safety hazards. This article will discuss the common causes of fractures in domestic connectors, the advantages and disadvantages of different materials, and practical skills for choosing a more reliable solution, combined with the material and structural characteristics of the Telegärtner brand.
Introduction to Telegärtner Brand Material and StructureTelegärtner emphasizes the characteristics of "robust connectors", "high-quality materials", and "durability" on its official website and product catalog.
●For example, one of its M12 series industrial circular connectors specifies that the Housing Material is Brass, Die Cast Zinc. This indicates that the housing of the connector is made of brass or die-cast zinc, which has good mechanical strength.
●In its outdoor fiber-optic/data module products, Telegärtner explicitly states "robust metal housing ... guarantees a safe and reliable connection, well-protected from environmental or mechanical hazards."
●In the material description, it also mentions: "products have Teflon insulation, gold or silver-plated contacts, and in some cases – nickel or gold-plated casing".
From the above, it is evident that Telegärtner is very particular about material selection: metal housing, coating treatment, and high-quality internal materials. This ensures reduced risks of fracture and failure in industrial, high-frequency, and outdoor applications.
Therefore, when discussing the "breakage situation of domestic connectors," we take this brand as a reference to see which materials and structures are more robust and desirable.
Are there many broken domestic connectors? Analysis of the causesDomestic connectors are not rare to break, especially in the following situations:
Shell material/thickness insufficient
If the connector uses a plastic housing, thin wall, and weak structure, it is prone to cracking under long-term mechanical vibration, thermal cycles, and external impacts.
Compared to the products of Telegärtner and others using metal casings (brass, zinc alloys, steel), there are more advantages in terms of mechanical strength, impact resistance, and environmental protection.
●Example: A Telegärtner shell made from steel "Made from high-quality steel for increased durability".
Locking mechanism, thread, and clip design degradation
In industrial/outdoor connectors, locking threads, clips, and seals are critical to the structure. If the design or execution is poor, cracks, breaks, or plastic clip detachment may occur at the structural load concentration points.
If domestic alternatives have not strictly verified these structural service lives (such as the number of insertions and extractions, and the locking life under vibration), the risk of breakage is higher.
High environmental load
● External environments such as temperature cycles, ultraviolet radiation, salt spray, vibration, and impact may cause material fatigue. Plastic shells are more prone to produce microcracks and fractures under high temperatures, strong ultraviolet radiation, and repeated loads.
Therefore, in outdoor, high-frequency, and high-power scenarios, structural fatigue plus improper loading is an important factor leading to fractures.
4. Fatigue of internal component materials / detachment of contacting parts
Although "fracture" usually refers to the shell, internal contact parts, welding points, and structural supporting parts can also cause connector failure due to fatigue fracture. High-quality brands like Telegärtner would use metal shell + excellent contact parts + strict testing. Domestic solutions would accelerate "fracture" or failure if the materials of internal components do not meet the standards.
Therefore, although specific failure rate figures cannot be provided, from the mechanism perspective: under the premise that structural design, material, and environmental adaptability control are not strictly implemented, the possibility of domestic connectors breaking is indeed relatively high.
Which materials are more durable? Focus on the following when selecting:Based on Telegärtner's practical experience and structural analysis, it is recommended to prioritize the following materials and structural designs when selecting domestic alternatives:
The metal shell is superior to the plastic shell.
● If the housing is made of brass, die-cast zinc, steel, and other metals, it has high mechanical strength, good impact resistance, and a longer service life. The Telegärtner M12 series is made of brass / die-cast zinc.
Although the cost of metal is high, the "failure cost" is even higher in industrial/outdoor/high-frequency applications, and it is recommended to prioritize it.
The plastic shell is light and cost-effective, but it is prone to fatigue cracking in extreme environments or during repeated insertion and removal, vibration scenarios.
The structural design must have fatigue resistance/locking mechanism.
●The tightening thread, clip, and mating parts must undergo life tests (after how many insertion and extraction cycles, there should be no cracks).
The design of the junction shell wall thickness and stress concentration areas should be smooth to avoid sharp angle cracks.
● Seals, gaskets, and slot positions are reasonably placed, which helps to cushion loads and prevent cracking.
External protection and inner material are excellent
●The metal shell plus coating (such as nickel, gold, silver) can enhance corrosion and fatigue resistance. Telegärtner mentions the coating and the selection of high-quality materials.
●Internal contact parts and supporting structure materials must be fatigue-resistant, temperature-resistant, and vibration-resistant. For example, spring contact parts and clip structures should use high-quality metal springs.
In outdoor or harsh industrial environments, choosing a higher grade structure with temperature resistance (-40°C to +85°C or above) and dustproof/waterproof ratings (such as IP67/IP68) can reduce shell cracking caused by external environments. Telegärtner explicitly mentions a metal shell with a temperature range of -40°C to +80°C in its outdoor fiber optic modules.
4. Supplier Quality and Testing Report
The supplier of domestic connectors is required to provide shell fatigue test reports, insertion and extraction life, vibration and impact test, temperature cycle test, etc.
For specialized applications such as high-frequency radio frequency, outdoor installations, and mobile communication base stations, structural fatigue and material failure are the main potential risks of fracture. Reliable data support must be available during the selection process.
Fracture, although it sounds like a mechanical structure problem, actually involves multiple dimensions such as material, design, environmental adaptability, usage frequency, and installation method. Taking Telegärtner as a reference standard, we find that high-quality connectors excel in shell material (metal is better than plastic), structural design (fatigue-resistant locking mechanism), material surface treatment (plating/metallurgical alloy), and environmental adaptability (temperature, vibration, protection level). For the replacement of domestic connectors, it is not only about "price being appropriate" but also "structure being reliable". When making a choice, it is necessary to prioritize the above material and design standards to minimize the risk of fracture and enhance system reliability. If you are considering replacing domestic connectors, using them in high-demand scenarios, or selecting them as supply chain components, it is advisable to start with material and structural design, choosing a more "durable" solution to avoid the risks of repair and downtime caused by fracture.
If you are interested in the domestic substitute products for Telegärtner brand connectors or have procurement needs, or if you have production or sales channels for these brand connector domestic substitutes and wish to engage in in-depth cooperation or communication, please contact us through the following contact information:
Manager Zhang (18665383950, same WeChat number)Contact us, we look forward to working together with more industry partners.
