51894-004LF

Series:	PwrBlade®
Packaging:	Tray
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Connector Usage:	--
Connector Type:	Receptacle, Female Sockets and Blade Sockets
Connector Style:	Blade Power
Number of Positions:	45
Number of Positions Loaded:	All
Pitch:	0.100" (2.54mm)
Number of Rows:	4
Number of Columns:	--
Mounting Type:	Board Edge, Through Hole, Right Angle
Termination:	Solder, Quick Connect
Contact Layout, Typical:	24 Signal, 21 Power
Features:	Board Lock, Guide Pin
Contact Finish:	Gold or Gold, GXT™
Contact Finish Thickness:	30.0µin (0.76µm)
Color:	Black
Current Rating:	--
Material Flammability Rating:	UL94 V-0
Operating Temperature:	-20°C ~ 105°C
Voltage Rating:	--

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Backplane Connectors - Specialized: 51894-004LF Application Field and Working Principle
Connectors are mechanical devices used to connect two or more electrical circuits. Backplane systems have become a popular choice amongst engineers, providing a high-speed, reliable, and cost-effective way to transfer multiple signal and power connections. Amongst the variety of designs for backplane connectors is the 51894-004LF series, a line of specialized backplane connectors specifically designed for telecommunications applications. To understand its application field and the principle of its operation, let’s take a look at its features.

The 51894-004LF backplane connector is a mezzanine-style connector, meaning that it is designed to carry two distinct signals or signals and power. It has two levels of pins, with low-profile pins and sockets on the top, and reed-style contacts on the bottom. This type of connector has an extremely low-profile design, allowing for a more efficient use of space in limited areas. It is constructed around a blade-like outer casing, offering structural rigidity and protection from EMI interference. Additionally, the 51894-004LF is designed to be vibration resistant and withstand up to 5000 mating cycles.

On the electrical side, the 51894-004LF is designed with superior contactability: it has a contact resistance of 8mΩ and a contact resistance change rate of 0.1mΩ/cycle. It also has a current-carrying capacity of 2A and offers a wide operating temperature range of -40°C to +85°C.

The working principle of the 51894-004LF backplane connector is clarified by its pin-and-socket design. The upper level of the connector consists of low-profile pins with a hollow core that allow for inserting the conducting reed-style contacts on the bottom level. When two sets of 51894-004LF connectors are mated, the reed-style contacts make contact and bridge the electrical connection between the two circuits, thus allowing for information and power transfer.

In addition to the 51894-004LF’s superior electrical features and reliable connector construction, this series of backplane connectors also offers multiple design options, making it a versatile choice for telecom applications. It is available in both single and double row configurations with multiple pin counts ranging from 4 to 28. The pin diameter is also adjustable according to the application needs, with a range from 1.13mm to 1.63mm.

In sum, as a specialty backplane connector for telecommunications, the 51894-004LF series is designed for reliability, connection integrity, and higher signal throughput. Its low-profile design offers efficiency in space requirements, while its mezzanine-style construction and superior contactability make it a great choice for high-speed data connection. It is also available in a variety of configurations to meet different requirements in terms of pin count, pin diameter, and row arrangement. As such, the 51894-004LF is a great option for telecom engineers and designers looking for a reliable and cost-effective alternative to the traditional backplane connections.

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