Connectors - IRISO Electronics co.,ltd.


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IRISO 's "Column" provides easy-to-understand explanations of technical content directly and indirectly related to connectors.
In particular, we deliver content that can be interpreted as much as possible without specialized knowledge, such as "I was taught by an expert, but it was difficult and I didn't understand it well...". It is not for specialists in the field, but I try to keep the explanations at the level of "to follow the story" for non-experts. I would be very happy if you could come out.

Frequency and data rate

Do you know the difference between "GHz" and "Gbps"?
These two are the units of "frequency" and "data rate" respectively. In this article, I will explain the difference between "GHz" and "Gbps", as well as the terms and relationships between "frequency" and "data rate", so that you can understand it in a "understanding" state as much as possible. I'm here.
Also, this article is the first part of "Frequency Distortion and Coding".

Frequency distortion and coding

This is the second part of "Frequency and Data Rate".
If you have not read "Frequency and Data Rate", please refer to it first. It may be a little more difficult than the last time, but it is a simple summary of the contents that can be understood from the perspective of a connector manufacturer, so to speak, and the necessary range. Please read it as one topic of high-speed transmission.

Are "Floating structure" and "high-speed transmission" contradictory requirements?

"Floating structure" and "Fast Transmission". There is a trade-off between this function and performance, but both IRISO and other connector makers are spending their technology and development capabilities to show off their skills in order to achieve both. Why are these two in a trade-off relationship, and how are they compatible? I will explain it as simply as possible.

"Resistive loss" and "dielectric loss" Will the signal change to heat and become smaller?

In the high-speed transmission area, why does the signal "attenuate = become smaller" when passing through a transmission line? Signal attenuation has several causes. This article deals with the theme of "loss due to electrical resistance" and "dielectric loss," which are the losses that depend on the material around the transmission line. It roughly explains what it's good at.

Reasons for the difference in connector performance between single-ended transmission and differential transmission

From time to time, we receive questions from both inside and outside the company, such as, "What about using a single-ended connector for differential transmission?" Unfortunately, in most cases, the answer is "I can't expect at least the same performance...". In this article, I will try to explain why the performance of the connector differs due to the characteristics of differential transmission and single-ended transmission, as much as possible in a way that can be "pictured".

What is a High heat-resistant Connector?

"High heat-resistant Connector" come in a variety of products, ranging from those with heat resistance of about 80°C to 680°C. In this article, we will focus on "connectors for board connection used in equipment", and explain what makes them highly heat resistant, their applications, technical issues and approaches, and special cases.

How many amperes can flow when the current is divided into multiple pins?

The shunt support of the connector differs depending on each manufacturer. For example, in response to a request saying, "This connector's rated current is 1.0A, but I want to use 3 pins to flow 3.0A," some manufacturers recommend shunting and others don't. Why? In this article, we will consider current shunting while touching on the response from connector heat generation due to current flow to large currents.

Why do we plate the terminals of connectors?

Plating is an integral part of connectors. However, the types and configurations of plating are quite complicated. On this page, we will briefly explain the main metals used in connectors and their characteristics, the two functions of connector plating, the functions of nickel plating, and the weaknesses and countermeasures of gold plating.

Connectors are fighting! ? Causes and countermeasures for poor connector connection

When it comes to electrical connections, it is actually not wrong to say that ``metal metals will conduct if they touch each other,'' but this touch needs to be ``touched firmly and correctly.'' In addition, it is also necessary to ``not touch unnecessary areas'' and ``maintain that condition.'' However, there are many obstacles to this in the environment in which connectors are used. This time, we will explain the causes of poor connections and how to deal with them.