17221254101

Series:	har-bus® HM
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Connector Type:	Receptacle, Female Sockets
Connector Style:	B 25
Number of Positions:	125
Number of Positions Loaded:	All
Pitch:	0.079" (2.00mm)
Number of Rows:	5
Mounting Type:	Through Hole, Right Angle
Termination:	Press-Fit
Connector Usage:	--
Contact Finish:	Gold
Contact Finish Thickness:	--
Current Rating:	1A
Voltage Rating:	--
Operating Temperature:	-55°C ~ 125°C
Features:	--

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Backplane Connectors - Hard Metric, StandardBackplane connectors are designed to provide the electrical connections between printed circuit boards (PCBs) in backplane applications. 17221254101 is a type of backplane connector that includes Hard Metric and Standard products.The Hardmetric is a standard developed by the Japanese for high speed networking and data communications equipment. It is also the primary connector type used by server manufacturers such as IBM, HP, and Fujitsu. The Hard Metric backplane architecture features a series of pitched pins that carry data and power, arranged in a square grid and soldered directly onto the boards. The Standard backplane architecture is designed for lower speed, general purpose applications. These are typically DIN-type connectors that use ribbon cables inside the chassis. These cables carry data and power between the boards. Standard backplane connectors are used for low-end servers, networking appliances, and consumer applications.Both the Hard Metric and the Standard backplane connectors have distinct advantages and disadvantages. The Hard Metric connectors are smaller and provide better shielding, but they are difficult to manufacture and install. The Standard connectors are easier to install and replace, but don\'t provide the same levels of shielding and performance.The Hard Metric and Standard connectors are both available in a variety of form factors, sizes, and shapes. The Hard Metric connectors are typically smaller than the Standard type and can be used to connect higher density backplane boards in very confined spaces. The Standard types can be used for connecting boards with lower pitch connectors, such as those on consumer electronics and PCBs with larger pitch connectors.In terms of working principle, the Hard Metric and Standard backplane connectors are designed to transmit current through physical contact between two mating connectors. The differences between them come from the design of the pins themselves. For Hard Metric connectors, the pins are V-shaped and contain a cross-sectional area that provides an air-gap between contact points. This enables the pins to provide higher transmission rates and minimizes crosstalk, a phenomenon in which interference is produced by electronic signals escaping from one circuit into another. Standard connectors, on the other hand, do not benefit from this air gap and can suffer from crosstalk when distance between connectors is too small.In terms of application fields, both Hard Metric and Standard backplane connectors can be used in high speed networking, computer servers, and data processing systems. The Hard Metric connectors are usually preferred for these applications due to their small size and better shielding, whereas the Standard connectors are better suited for low speed, general purpose applications such as consumer electronics.Overall, 17221254101 is a type of backplane connector that includes both Hard Metric and Standard products. It provides electrical connections between printed circuit boards (PCBs) for a variety of applications. The Hard Metric connectors offer improved shielding and transmission rates due to their unique design, whereas the Standard backplane connectors are easier to install and replace but do not provide the same levels of performance.

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