51939-313LF

Series:	PwrBlade®
Packaging:	Tray
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Connector Usage:	--
Connector Type:	Header, Male Pins and Blades
Connector Style:	Blade Power
Number of Positions:	19
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
Contact Layout, Typical:	16 Signal, 3 Power
Features:	--
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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Overview

The 51939-313LF is a backplane connector specialized for high power applications. Being one of the high power devices on the market, it can provide up to 40A of current – ideal for applications where high performance and reliability are required. In this article, we’ll discuss the key features and applications of the 51939-313LF, as well as its working principle.

Features

The 51939-313LF features a low profile design that allows for easy implementation into tight spaces. This connector also comes with an optional second ejector tab that can be activated via rear push/pull operation and allows for even faster installation. In addition, the user can access the rear cavity of the connector in order to physically attach the associated components. It is also equipped with active two-section keying that prevents mismating of connector components when mixed with similar looking connectors.The 51939-313LF also has an mated height of just 2.8 mm which makes it ideal for high density, height restricted applications. Additionally, it operates at a temperature range of -20°C to +85°C, making it well suited for a broad range of environments.

Application

The 51939-313LF is applicable for a variety of high-power applications in fields such as automotive, medical, consumer electronics, and industrial control. Its wide operating temperature range and its optional second ejector tab make it suitable for these industries.The 51939-313LF connector can be used in applications such as tablet computers, medical equipment and other precision measuring instruments. By providing a reliable connection for high power applications, it can eliminate any potential problems related to loose connections that can occur due to vibration or extreme temperature changes.

Working Principle

The 51939-313LF connector operates on a three-contact system. The female connector has two removable contacts (“hot” and “cold”) and a floating ejector pin. When the male connector is inserted into the female connector, the hot and cold contacts make contact with the corresponding male contacts. At this point, the floating ejector pin is pushed out of the female connector and latches onto the male connector, securely locking the two pieces together.When the male connector is retracted from the female connector, the latch is released and the floating ejector pin returns to its default position, allowing the two pieces to be disengaged. The optional second ejector tab helps with this process, providing a more reliable mechanism for releasing the latch.

Conclusion

The 51939-313LF is a backplane connector specialised for high power applications. It features a low profile design along with an optional second ejector tab to allow for faster installation. It is applicable for a variety of high-power applications in automotive, medical, consumer electronics, and industrial control and operates on a three-contact system. With its various features and wide operating temperature range, the 51939-313LF is a great choice for any application needing reliable and stable high power connections.

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