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
RS庫存編號 717-6684
製造零件編號440360-2
HK$59.03
單位
Female DIMM Socket Right Angle Phosphor Bronze Gold over Nickel 124 0.8mm Surface Mount Solder Thermoplastic - - - -
RS庫存編號 161-5604
製造零件編號440360-2
HK$39.328
Each (In a Tray of 600)
單位
Female DIMM Socket Right Angle Phosphor Bronze Gold over Nickel 124 0.8mm Surface Mount Solder Thermoplastic - - - -
RS庫存編號 185-5892
製造零件編號2309414-1
HK$14.984
Each (On a Tape of 5)
單位
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庫存編號 542-2663
製造零件編號1473005-1
HK$29.15
單位
Female DIMM Socket Right Angle Copper Alloy Gold over Nickel 200 0.6mm Surface Mount Solder Thermoplastic DDR1 - - -
RS庫存編號 186-4838
製造零件編號1717254-1
HK$19.286
Each (On a Tape of 150)
單位
Female DIMM Socket Right Angle Copper Alloy Gold Flash 200 0.6mm Surface Mount Solder Thermoplastic SO Yes 6.2mm 30.0mΩ
RS庫存編號 542-2685
製造零件編號1473005-4
HK$34.39
單位
Female DIMM Socket Right Angle Copper Alloy Gold over Nickel 200 0.6mm Surface Mount Solder Thermoplastic DDR2 - - -
RS庫存編號 186-4923
製造零件編號1717254-1
HK$27.157
Each (On a Tape of 3)
單位
Female DIMM Socket Right Angle Copper Alloy Gold Flash 200 0.6mm Surface Mount Solder Thermoplastic SO Yes 6.2mm 30.0mΩ
RS庫存編號 173-4043
製造零件編號10033853-052FSLF
HK$153.049
Each (In a Tray of 20)
單位
Female DIMM Socket Right Angle Copper Alloy Gold 200 0.6mm Surface Mount Solder Liquid Crystal Polymer DDR2 - 6.2mm 30.0mΩ
RS庫存編號 186-4839
製造零件編號1612618-1
HK$36.946
Each (In a Tray of 20)
單位
Female DIMM Socket Right Angle Copper Alloy Gold Flash 200 0.6mm Surface Mount Solder Thermoplastic SO Yes 6.2mm 30.0mΩ
RS庫存編號 185-5348
製造零件編號2309411-1
HK$9.682
個 (在毎卷:250)
單位
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庫存編號 178-9938
製造零件編號78730-1002
BrandMolex
HK$201.60
Each (In a Tray of 120)
單位
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庫存編號 185-5345
製造零件編號2309410-1
HK$7.94
個 (在毎卷:400)
單位
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庫存編號 719-8741
製造零件編號3-390113-1
HK$63.49
單位
Female DIMM Socket Right Angle Copper Alloy Gold over Nickel 144 0.8mm Surface Mount Solder Polymer SO - - -
RS庫存編號 909-7429
製造零件編號2-2013310-1
HK$30.40
單位
Female DIMM Socket Right Angle Copper Alloy Gold Flash 204 0.6mm Surface Mount Solder Thermoplastic DDR3 Yes 8.2mm -
RS庫存編號 185-5349
製造零件編號2309412-1
HK$10.288
個 (在毎卷:250)
單位
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庫存編號 164-0073
製造零件編號5822021-4
HK$30.743
個 (以毎盒:315)
單位
Female SIMM Socket Straight Phosphor Bronze Tin over Nickel 72 2.54mm Through Hole Solder Liquid Crystal Polymer - - - -
RS庫存編號 745-5047
製造零件編號5821997-3
HK$88.45
單位
Female SIMM Socket Straight Phosphor Bronze Gold 72 1.27mm Through Hole Solder Liquid Crystal Polymer - Yes - -
RS庫存編號 191-7904
製造零件編號1827236-4
HK$59.536
/個 (每包:5個)
單位
Female DIMM Socket Right Angle Copper Alloy Gold Flash 200 0.6mm Surface Mount Solder Thermoplastic DDR2 Yes 5.6mm 30.0mΩ
RS庫存編號 185-9876
製造零件編號1565917-4
HK$40.92
單位
Female DIMM Socket Right Angle Copper Alloy Gold Flash 200 0.6mm Surface Mount - Thermoplastic DDR1, DDR2 Yes 6.2mm -
RS庫存編號 161-7965
製造零件編號151080-0101
BrandMolex
HK$232.247
Each (In a Tray of 12)
單位
Female DIMM Socket Right Angle Copper Alloy Gold over Nickel (Mating), Tin over Nickel (Termination) 288 0.85mm PCB Mount Through Hole Glass Filled Polyamide DDR4 Yes 1.58mm -