Hirose Electric Co Ltd RM31WTR-55S(71)

Contact Material refers to the material used to make the electrical contacts in a component. It determines the electrical conductivity, durability, and resistance to corrosion and wear of the contacts. Common contact materials include copper, silver, gold, and alloys of these metals. The choice of contact material depends on the specific application and the required performance characteristics.

Mounting Type refers to the method by which an electronic component is attached to a printed circuit board (PCB) or other surface. Common mounting types include: * Through-hole: Component leads are inserted into holes in the PCB and soldered on the other side. * Surface-mount: Component is placed on the surface of the PCB and soldered in place. * Press-fit: Component is pressed into place on the PCB without soldering. * Socket: Component is inserted into a socket on the PCB, allowing for easy replacement. The mounting type is determined by factors such as the component's size, shape, and power requirements.

Package / Case refers to the physical housing or enclosure that encapsulates an electronic component. It provides protection, facilitates handling, and enables electrical connections. The package type determines the component's size, shape, pin configuration, and mounting options. Common package types include DIP (dual in-line package), SOIC (small outline integrated circuit), and BGA (ball grid array). The package also influences the component's thermal and electrical performance.

Series, in the context of electronic components, refers to the arrangement of components in a circuit. When components are connected in series, they form a single path for current to flow through. The total resistance of a series circuit is the sum of the individual resistances of each component. Series connections are often used to control the flow of current in a circuit, as the total resistance can be adjusted by changing the number or type of components in the series.

Part Status is an electronic component parameter that indicates the availability and production status of a component. It is typically used to inform customers about the availability of a component, whether it is in production, end-of-life, or obsolete. Part Status can also provide information about any restrictions or limitations on the component's use, such as whether it is only available for certain applications or if it has been discontinued.

Connector Type refers to the physical interface used to connect an electronic component to other devices or systems. It specifies the shape, size, pin configuration, and mating mechanism of the connector. Common connector types include USB, HDMI, Ethernet, and power connectors. The choice of connector type depends on factors such as signal type, data rate, power requirements, and environmental conditions.

Number of Positions, in the context of electronic components, refers to the number of distinct terminals or connection points available on the component. It indicates the number of individual electrical connections that can be made to the component. A higher number of positions typically allows for more complex functionality and versatility in circuit design.

Current Rating is the maximum amount of current that an electronic component can safely handle without overheating or failing. It is typically expressed in amperes (A) or milliamperes (mA). Exceeding the current rating can damage the component and potentially create a safety hazard. The current rating is determined by the physical characteristics of the component, such as its size, material, and construction.