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5390168-1

168-pos DRAM DIMM socket, 2.54mm pitch, gold-plated, THT, MO-161 compliant

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Manufacturer Part：

5390168-1

Package：

Through-Hole DIMM Socket (133.35 mm length)

Description

Product Overview

The 5390168-1 from TE Connectivity is a 168-position DRAM DIMM memory module socket from the Tiny WHSL series with a 2.54 mm pitch. Featuring gold-plated bronze contacts with through-hole solder termination, it complies with MO-161 standards for inline memory module sockets in computing applications.

Key Specifications

Number of Positions	168
Centerline (Pitch)	2.54 mm
Connector Style	DIMM
Memory Type	DRAM
Termination Method	Through Hole – Solder
Contact Material	Bronze
Contact Plating	Gold (0.38 um / 15 uin)
Operating Temperature	-55 to 105 degC
Features	Board Lock, Latches

Features

168-position DIMM socket for DRAM modules
Gold-plated contacts for reliable signal integrity
Board lock and latching mechanism
Compliant with MO-161 industry standard
Through-hole solder termination

Applications

Desktop computer memory expansion
Server and workstation memory slots
Embedded computing DIMM interfaces
Industrial PC memory modules
Telecom equipment memory sockets

Product Introduction:5390168-1 Product Introduction

The 5390168-1 from TE Connectivity is a 168-position DRAM DIMM memory module socket from the Tiny WHSL series. It provides a reliable interface for dual in-line memory modules (DIMMs) in computing platforms. The gold-plated bronze contacts (15 uin / 0.38 um over nickel) ensure low contact resistance and reliable signal integrity for high-speed memory interfaces. The connector features board lock and latching mechanisms for secure module retention. Compliant with JEDEC MO-161 standards, it supports standard 168-pin DRAM DIMM modules through through-hole solder attachment to the PCB.

Working Principle:5390168-1 Working Principle

The 5390168-1 operates as a 168-pin DIMM socket with two rows of 84 contacts each on a 2.54 mm pitch. The gold-plated contacts use a dual-wipe design that wipes against the module edge connector fingers during insertion, cleaning the contact surfaces and ensuring reliable electrical connection. The latching mechanism at both ends of the socket secures the DIMM module in place with an audible click. The board lock feature provides mechanical retention of the socket to the PCB during soldering and operation. The 0.38 um gold plating over nickel underplate prevents oxidation and ensures long-term contact reliability.

Pin Description:5390168-1 Pin Definition and Functions

Row	Positions	Type	Function
Row A	1-84	Contact	Front-side memory signals
Row B	85-168	Contact	Back-side memory signals

Application Scenarios:In which products and applications is5390168-1 used

Desktop computer motherboard DIMM slots
Server and workstation memory expansion
Embedded computing platform memory interfaces
Industrial PC memory module sockets
Telecom equipment DRAM DIMM connectors

Alternative Models:What chips are recommended as replacements for 5390168-1

Manufacturer	Part Number	Package	Notes
TE Connectivity	5390168-4	THT	Variant with nylon housing
Molex	88008-1680	THT	168-pin DIMM socket
Amphenol	MDM26-168	THT	168-pin memory socket
TE Connectivity	554568-1	THT	DDR DIMM socket variant
FOXCONN	DDMS2-168S1-11000	THT	168-pin DIMM alternative