L77SDD50SOL2C309 vs DAMK7W2S

Part Number
L77SDD50SOL2C309
DAMK7W2S
Category D-Sub Connectors D-Sub Connectors
Manufacturer Amphenol ICC (Commercial Products) ITT Cannon, LLC
Description CONN D-SUB RCPT 50POS VERT SLDR CONN D-SUB RCPT 7POS
Package - -
Series SD Combo D?, D*M
Mounting Type Through Hole -
Termination Solder -
Current Rating 5A 7.5A
Contact Finish Gold Gold
Number of Positions 50 7 (5 + 2 Coax or Power)
Connector Type Receptacle, Female Sockets Receptacle, Female Sockets
Contact Finish Thickness 30µin (0.76µm) -
Number of Rows 3 2
Connector Style D-Sub D-Sub, Combo
Contact Type Signal Signal and Coax or Power (Not Included)
Flange Feature Housing/Shell (Unthreaded) Housing/Shell (Unthreaded)
Shell Material, Finish Steel, Tin Plated Steel, Yellow Chromate Plated Zinc
Material Flammability Rating UL94 V-0 UL94 V-0
Shell Size, Connector Layout 5 (DD, D) 2 (DA, A) - 7W2
Features - Shielded
  • 1. Applications of D-SUB full range of connectors

    1. Computer field: D-SUB connectors are widely used in the computer field, such as the connection of external devices such as monitors, keyboards, mice, etc.
    2. Communication field: D-SUB connectors can be used for signal transmission between various communication devices, such as telephones, fax machines, routers, etc.
    3. Industrial control field: D-SUB connectors are widely used in the industrial control field, such as the connection of PLCs, sensors, actuators and other equipment.
    4. Automation field: D-SUB connectors can be used for signal transmission and power supply in automation equipment, such as robots, automated assembly lines, etc.
    5. Other fields: In addition to the above fields, D-SUB connectors can also be used in other fields such as security, lighting, and medical equipment.

  • 2. Problems caused by poor contact of D-SUB connectors

    Performance: increased contact resistance, circuit breakage, contact curtain movement, etc.

    Causes: inadequate connection, insufficient contact area, dirt, corrosion, oxidation, etc.
    Solution: Re-plug the connector, clean the connection part (use alcohol or other cleaning agents), replace the contact or connector.

  • 3. FAQ of D-SUB Connector

    ‌D-SUB connector connection is poor

    Performance: shell damage, bayonet connector loose or stuck after plugging.
    Cause: internal defects of the connector, external force damage.
    Solution: Check and repair internal defects of the connector and avoid external force damage.

    ‌D-SUB connector oxidation What are the manifestations?

    Performance: increased contact resistance.
    Cause: environmental factors and current effects.
    Solution: Clean and maintain the connector regularly, and use a protective cover to avoid pin exposure.

    ‌‌What problems are caused by deformation of D-SUB connector?

    Performance: Affects contact area and stability.

    Cause: Mechanical pressure or temperature change.

    Solution: Avoid excessive mechanical pressure and check connector status regularly.

  • 4. FAQ of D-SUB Connector

    ‌What is the reason for no signal in D-SUB connector?
    Performance: No signal.

    Solution: Check whether the signal cable is plugged in properly and ensure stable connection. 3.

    ‌‌D-SUB connector causes the monitor to fail to display.
    Performance: The monitor cannot display.
    Solution: Adjust the computer resolution to the highest resolution supported by the monitor.

    ‌‌What is the reason for poor connection of D-SUB connector?
    Performance: Poor connection.

    Cause: The pin is exposed and easily damaged.
    Solution: Use a protective cover to avoid pin exposure and operate carefully.

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