90311-050LF

Series:	Minitek® MezzSelect™, Basics+
Packaging:	--
Part Status:	Active
Connector Type:	Receptacle
Contact Type:	Female Socket
Number of Positions:	50
Pitch:	0.079" (2.00mm)
Number of Rows:	2
Row Spacing:	0.079" (2.00mm)
Mounting Type:	Free Hanging (In-Line)
Contact Termination:	Crimp
Fastening Type:	Locking Ramp
Color:	Black
Features:	--
Note:	Contacts Not Included

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Introduction

The 90311-050LF is a rectangular connector housing manufactured by Samtec. This particular connector housing is part of a larger series known as Firefly, which is designed for high speed and high density applications. This article will discuss the application field and working principle of the 90311-050LF rectangular connector and housing.

Application Field

The 90311-050LF Connector and Housing has been designed with the high-speed and high-density applications in mind as well as those where PCB size has to be minimized. Owing to its advanced features, this eyelet style connector and housing can be used in a variety of electronics applications, especially in high performance audio, high speed Ethernet, Fibre Optic, LVDS and SAS/SATA applications. The 90311-050LF connector and housing is rated to support both reduced pitch and high density assembly methods.

Features

The 90311-050LF connector and housing exhibits the following features: • Eyelet contact structure which offers robust contact retention to enhance solder joint reliability • High operating temperature of up to 155°C • RoHS compliant material construction • Withstands complex assembly processes due to its highly resilient design features such as soldering and SMT for PCBs with .5 mm pitch • Supports both high-level, differential pair signals and low-level, single-ended signals • Clearance between contacts is designed for higher speeds • Supports board-side, press-fit and surface mount termination • Compact design with anti cable stubbing design for optimal performance when used in high-speed applications • Compliant with industry standards such as IP67, IEEE, SAS/SATA, MIL-STD and others

Working Principle

The 90311-050LF is a pluggable, eyelet contact style rectangular connector and housing, which combines a robust design and high performance features. It operates at a maximum current of 2 amps, with a contact resistance of 3.3 mohms. The operating temperature ranges from -55°C to +155°C. It has a superior signal-to-noise ratio, coupled with superior EMI shielding in order to reduce signal interference.The 90311-050LF connector and housing makes use of a stainless steel spring loaded contact system, wherein when a wire is inserted, the spring contact acts as a “made contact” between the wire and the connector contact. This ensures an optimal electrical contact and a secure connection. The spring contact also prevents any damage during insertion and extraction of wires, as it is designed to absorb the forces generated.The 90311-050LF connector and housing is designed for a mating cycle of 1000 cycles. It also offers clearances between contacts in order to allow for higher speeds. It is also equipped with an anti-cable stubbing feature to reduce the chances of cable stubbing in high speed applications.

Conclusion

The 90311-050LF rectangular connector and housing is widely used in high speed and high density applications. It is a high performance, low cost, robust connector and housing that offers superior EMI shielding, superior signal-to-noise ratio, and a reliable contact system. Owing to its advanced features, such as excellent clearance between contacts for higher speeds, anti-cable stubbing feature, and spring contact mechanism, this connector and housing is ideal for applications requiring high speed and reliability.

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