Electronic Components & Devices

Card Edge Connectors

6404 Series

The 6404 Series are connectors for DDR2 S.O. DIMM cards with 144 positions and bandwidths of 32 bits, which comply with the JEDEC MO-274A standard. These products are applicable in a variety of equipment, including complex machines, printers, scanners and POS terminals.


Typical Applications

Printers / Copiers, Industrial Equipment etc.


No. of Positions 144
PCB Mounting
PCB Orientation Vertical
Applicable Standard JEDEC MO274A
Pitch 0.8mm
Rated Current DC 0.3/Contact
Rated Voltage DC 25V/Contact
Withstanding Voltage AC 1,000Vrms/min.


  • Compliant with JEDEC MO-274A.
  • SMT, 25 times of card insertion/ejection are guaranteed.
  • Coding key for 1.8V card board.
  • Vertical type with space-saving design enables more components to be mounted on adjacent areas.
  • Operationality in card ejection and miniaturization of levers are achieved. The friction arm delivers a nice “click” feeling and secure locking. Features wide lead-in structures on both sides for card insertion with a length of 1.5mm and width of 1.0mm. Card guiding structure in which the ejector supports the card is applied, protecting the contacts from external stress or vibration.
  • Applicable to automatic mounting processes. Packaged in trays with open levers and features a product height of 14mm with consideration of re-flow lines. Vacuum tape is optional.
  • Contact Material: Copper alloy
  • Insulator / Cover Material: Heat-resistant plastic
  • Operating Temperature Range: -55 to +85°C

Plating Specifications

Plating CodeContact AreaTail AreaRoHS Compliance
856+ Au (0.1µm Min.) Sn-Cu Yes

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