Memory Sockets

Memory sockets are a part of printed circuit boards, designed for use in personal computers, servers and workstations. The module is mounted on the circuit board using a module socket. DIMMs are the dominant form of memory used in computing.


What are DIMMs?


DIMMs are memory modules that are composed of a series of dynamic, random-access memory (RAM) integrated circuits. They have two separate electrical contacts on either side and a 64-bit path.


Types of DIMM sockets


DIMM sockets have to conform to the needs of the system that they are used in. Different types of socket may vary according to the number of pins. This depends on the type of RAM being supported by the DIMM, from DDR to DDR4. Generally, the more pins or contacts, the higher the type of RAM supported. For example, a 240-pin DIMM might be used for DDR2 SDRAM, while a 288-pin DIM might be used for DDR4 SDRAM.


DIMM sockets can vary based on orientation this can be:



  • Angled

  • Horizontal

  • Vertical


What are SIMMs?


SIMM (Single In-Line Memory Module) sockets are computer memory expansion holders that connect memory modules to circuit boards. These sockets have single row pins which connect to the system board vertically or at predetermined angles. The sockets are easily inserted or extracted because they are not soldered onto the circuit board.


SIMM sockets have positive polarisation to prevent the memory modules from being inserted incorrectly. Contacts (pins) on the SIMM sockets have anti-overstress features and are resistant to high temperatures.


What are SIMM sockets used for?


The main benefits of using SIMM sockets are their space-saving capabilities and simple installation mechanisms, making them suitable for smaller circuit board designs used by electronic hobbyists. SIMM sockets are legacy components, mainly used in older module computers, PCBs and motherboards.


Types of SIMM sockets


SIMM sockets come in various sizes and are distinguished by the number of pin slots:



  • 30-pin SIMM sockets are shorter than standard sockets and can be used in legacy type laptops.

  • 64- and 72-pin SIMM sockets are used in desktop motherboards because they can hold larger memory modules.

...
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Description Price Gender Memory Socket Type Body Orientation Contact Material Contact Plating Number of Contacts Pitch Mounting Type Termination Method Housing Material SDRAM Type Latching Row Spacing Maximum Contact Resistance
New
RS Stock No. 217-5431
Mfr. Part No.2040910-1
HK$48.277
Each (In a Tray of 24)
units
- - Vertical Copper Alloy Gold 200 0.6mm Surface Mount - - - - - -
RS Stock No. 191-7876
Mfr. Part No.1827236-4
HK$55.605
Each (In a Tray of 20)
units
Female DIMM Socket Right Angle Copper Alloy Gold Flash 200 0.6mm Surface Mount Solder Thermoplastic DDR2 Yes 5.6mm 30.0mΩ
New
RS Stock No. 217-5354
Mfr. Part No.1-1932000-1
HK$34.44
Each (In a Tray of 50)
units
- - Vertical Copper Alloy Gold 240 1mm Through Hole - - - - - -
RS Stock No. 186-4838
Mfr. Part No.1717254-1
HK$26.641
Each (On a Tape of 150)
units
Female DIMM Socket Right Angle Copper Alloy Gold Flash 200 0.6mm Surface Mount Solder Thermoplastic SO Yes 6.2mm 30.0mΩ
RS Stock No. 182-3004
Mfr. Part No.7111S1615A01LF
HK$13.924
Each (In a Pack of 5)
units
- SIMM Socket - - - - - - - - - - - -
RS Stock No. 173-4043
Mfr. Part No.10033853-052FSLF
HK$82.955
Each (In a Tray of 20)
units
Female DIMM Socket Right Angle Copper Alloy Gold 200 0.6mm Surface Mount Solder Liquid Crystal Polymer DDR2 - 6.2mm 30.0mΩ
RS Stock No. 178-9938
Mfr. Part No.78730-1002
BrandMolex
HK$234.935
Each (In a Tray of 120)
units
Female DIMM Socket Straight Copper Alloy Gold over Nickel, Tin over Nickel 288 0.85mm Surface Mount Solder Nylon DDR4 Yes 0.85mm 10.0mΩ
RS Stock No. 161-4030
Mfr. Part No.1473149-4
HK$36.937
Each (In a Tray of 120)
units
Female DIMM Socket Right Angle Copper Alloy Gold over Nickel 200 0.6mm Surface Mount Solder Thermoplastic DDR2 - - -
RS Stock No. 719-8725
Mfr. Part No.1473149-4
HK$46.44
Each
units
Female DIMM Socket Right Angle Copper Alloy Gold over Nickel 200 0.6mm Surface Mount Solder Thermoplastic DDR2 - - -
New
RS Stock No. 217-5489
Mfr. Part No.6-390322-1
HK$88.02
Each
units
- - Right Angle Phosphor Bronze Gold 144 0.8mm Surface Mount - - - - - -
RS Stock No. 191-7904
Mfr. Part No.1827236-4
HK$66.516
Each (In a Pack of 5)
units
Female DIMM Socket Right Angle Copper Alloy Gold Flash 200 0.6mm Surface Mount Solder Thermoplastic DDR2 Yes 5.6mm 30.0mΩ
RS Stock No. 186-4925
Mfr. Part No.1612618-1
HK$71.85
Each (In a Pack of 2)
units
Female DIMM Socket Right Angle Copper Alloy Gold Flash 200 0.6mm Surface Mount Solder Thermoplastic SO Yes 6.2mm 30.0mΩ
RS Stock No. 185-9262
Mfr. Part No.1565917-4
HK$41.737
Each (On a Reel of 150)
units
Female DIMM Socket Right Angle Copper Alloy Gold Flash 200 0.6mm Surface Mount - Thermoplastic DDR1, DDR2 Yes 6.2mm -
RS Stock No. 161-4022
Mfr. Part No.1473005-1
HK$26.253
Each (In a Box of 120)
units
Female DIMM Socket Right Angle Copper Alloy Gold over Nickel 200 0.6mm Surface Mount Solder Thermoplastic DDR1 - - -
RS Stock No. 186-4817
Mfr. Part No.1717254-4
HK$40.42
Each (On a Tape of 150)
units
Female DIMM Socket Right Angle Copper Alloy Gold Flash 200 0.6mm Surface Mount Solder Thermoplastic SO Yes 6.2mm 30.0mΩ
RS Stock No. 185-5877
Mfr. Part No.2309408-1
HK$14.374
Each (On a Tape of 5)
units
Female DIMM Socket Right Angle Copper Alloy Gold Flash, Nickel Plated (Under Plated) 260 0.5mm Surface Mount Solder Thermoplastic SO Yes 8.2mm 50.0mΩ
RS Stock No. 185-5346
Mfr. Part No.2309413-1
HK$11.843
Each (On a Reel of 250)
units
Female DIMM Socket Right Angle Copper Alloy Gold Flash, Nickel Plated (Under Plated) 260 0.5mm Surface Mount Solder Thermoplastic SO Yes 8.2mm 50.0mΩ
RS Stock No. 186-4893
Mfr. Part No.1717254-4
HK$69.638
Each (On a Tape of 5)
units
Female DIMM Socket Right Angle Copper Alloy Gold Flash 200 0.6mm Surface Mount Solder Thermoplastic SO Yes 6.2mm 30.0mΩ
RS Stock No. 185-5892
Mfr. Part No.2309414-1
HK$20.32
Each (On a Tape of 5)
units
Female DIMM Socket Right Angle Copper Alloy Gold Flash, Nickel Plated (Under Plated) 260 0.5mm Surface Mount Solder Thermoplastic SO Yes 8.2mm 50.0mΩ
RS Stock No. 542-2607
Mfr. Part No.390111-1
HK$47.28
Each
units
Female DIMM Socket Right Angle Phosphor Bronze Gold over Nickel 144 0.8mm Surface Mount Solder Nylon - - - -