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What are the five specific criteria for the correct selection of test leads and pogo pins?

What are the five specific criteria for the correct selection of test leads and pogo pins?
18 Feb 2022

Anyone who has ever measured and tested knows that accurate data depends on the design and measurement capabilities of the test instrument. But few people know that the design quality, manufacturing process, matching and performance specifications of test leads and connectors are just as important as test instruments. Next, follow the editor to focus on five specific criteria for the correct selection of test leads and pogo pins: First, security: Like the requirements of the power supply, the instrument test leads and pogo pins must meet strict safety level requirements due to their direct contact with large voltages, especially the requirements of the international IEC1010 voltage and category, i.e. CATI, CAT II, ​​CAT III or CATIV. Other requirements of IEC1010 also involve transient testing, dielectric withstand voltage, or testing to verify that the product has adequate insulation and meets requirements for current, electrical clearance, exposed metal pogo pins, and shock resistance. Good quality test needles, along with important personal protective equipment such as gloves and eye protection, form part of the personal protective measures defined in the NFPA70E standard. Second, sturdiness and durability: High-quality test leads and connectors won't degrade from everyday friction like pulling, pressing, and puncturing. Both ends of the test leads should have well-designed strain relief jackets. Test pogo pins should be hardened metal to withstand repeated connections and deliver accurate data every time. Specially fabricated stranded tinned beryllium copper wire provides flexibility, long-term durability, superior conductivity and precision compared to inexpensive materials. Other factors include the quality of the soldering inside the pogo pins and headers and the temperature range of the material. Third, design performance and indicators: It is important to test the comfort of the design of the pogo pins and test clips. A comfortable, easy-to-grip grip surface helps keep the needle firmly in hand, and a strong spring clip ensures a secure connection. Connections should be easy and mating parts should slide together effortlessly without stress. The contacts on

Banana plugs|Classification and application of speaker wire plugs

Banana plugs|Classification and application of speaker wire plugs
25 Jan 2022

The wire in the audio equipment has a great influence on the sound, but how big is the impact? It is difficult to explain the change of the sound with data. Everyone has different requirements and criteria for the sound. It can only be determined by the user's personal preference. The most important part of the wire is generally the speaker wire, which refers to the wire connecting the speaker and the power amplifier. The most important thing about the speaker cable is the conductivity, that is, the signal used to transmit power. Due to the heavy conductivity, it is easy to find that the speaker cable for fever has a rather thick design. Everyone will start using a set of cheap speaker cables, and when you go to buy a new speaker cable, one of the most introductory questions, what connectors do you want to use to make and choose speaker cables? The head and tail of the speaker cable generally have plugs to help connect the power amplifier and speakers. The speaker cable plug is a secondary audio entry problem to be discussed and shared! ? Speaker Cable In addition to active speakers, general speakers require speaker cables, and the head and tail of speaker cables are usually equipped with speaker plugs, which generally match the three mentioned above. No matter which type of plug is used, it actually has the same characteristics. and transmission functions, let us introduce them one by one so that everyone can better understand their uses and differences. bare wire First of all, at first, we bought the simplest, most convenient and affordable speaker cable when playing audio. What is the most commonly used plug for the first pair of speaker cables? My answer is bare wire, i.e. just buy a pair of wires without a plug. Connect the speaker directly with bare wire. The so-called naked view is to directly open the front end of the speaker wire, and directly lock the exposed metal of the speaker wire with the inner conductive metal body with the speaker wire connector position on the back of the speaker. Simple and straightforward! In fact, when you ask which kind of speaker wire plug is the best, the answer is often bare wire is the best, because it is the most direct way to con