Series:	MetPak™ HSHM
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Connector Type:	Header, Male Pins
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
Termination:	Press-Fit
Connector Usage:	Backplane
Contact Finish:	Gold
Contact Finish Thickness:	5.00µin (0.127µm)
Current Rating:	1A
Voltage Rating:	--
Operating Temperature:	-55°C ~ 125°C
Features:	Shielded

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HSHM-H125B4-5CP1-TR40B Application Field and Working Principle

HSHM-H125B4-5CP1-TR40B is a male-female type hard metric backplane connector. This type of connector is used in some industrial boards to connect board-to-board communications. It offers various features that make it suitable for a wide range of applications.The HSHM-H125B4-5CP1-TR40B is a type B4 electromechanical backplane connector for contact pitch of 2.54 mm. The contact type is #16 with a nominal current of 3A and rated voltage of 500V and contact resistance of 20mΩ. It can withstand extreme temperatures between -55°C to +125°C. The mating-mating cycle is 500, the mating-demating cycle is 400, and the mated height is 7.5mm. This hard metric connector is designed to meet the requirements of a wide variety of applications including industrial PCs, automated test equipment, data acquisition systems, embedded systems, modems, and console systems.The working principle of this hard metric backplane connector is straightforward. It is designed to accommodate two mating components, consisting of a backplane and a female. The female carries the contacts while the backplane provides the housing. When two mating components are placed together, the contacts act as junctions that electrically connect the two components together. The contacts are designed to carry electrical signals from one device to another.The construction of the HSHM-H125B4-5CP1-TR40B is designed to provide high levels of reliability and performance. It features a four-piece assembly that consists of a polyamide body, contacts, silicone seals, and spring plungers. The polyamide body provides a robust housing that keeps the contact pins securely in place. The contacts are made of copper alloy and plated with either nickel or phosphor bronze for corrosion protection. The silicone seals protect the contacts from moisture and contaminants. Finally, the spring plungers secure the contacts in place and enable the mating of two components.Altogether, the HSHM-H125B4-5CP1-TR40B is an ideal solution for hard metric backplane connectors. Its features make it suitable for a wide range of applications, including industrial PCs, automated test equipment, data acquisition systems, embedded systems, modems, and console systems. It features a robust construction and reliable performance while also providing high levels of contact protection.

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