L777TWA3W3PP3Y4F vs L77TWA3W3SEP3V
| Part Number |
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| Category | D-Sub Connectors | D-Sub Connectors |
| Manufacturer | Amphenol ICC (Commercial Products) | Amphenol ICC (Commercial Products) |
| Description | CONN D-SUB PLUG 3POS VERT SLDR | CONN D-SUB RCPT 3POS R/A SOLDER |
| Package | - | - |
| Series | TW | TW |
| Features | Grounding Indents | - |
| Mounting Type | Panel Mount, Through Hole | Panel Mount, Through Hole, Right Angle |
| Termination | Solder | Solder |
| Contact Finish | Gold | Gold |
| Number of Positions | 3 (Power) | 3 (Power) |
| Connector Type | Plug, Male Pins | Receptacle, Female Sockets |
| Contact Finish Thickness | 30µin (0.76µm) | 16µin (0.40µm) |
| Number of Rows | 1 | 1 |
| Connector Style | D-Sub, Combo | D-Sub, Combo |
| Contact Type | Power | Power |
| Flange Feature | Mating Side, Female Screwlock (4-40) | Housing/Shell (Unthreaded) |
| Shell Material, Finish | Steel, Tin Plated | Steel, Tin Plated |
| Shell Size, Connector Layout | 2 (DA, A) - 3W3 | 2 (DA, A) - 3W3 |
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1. Specifications and models of D-SUB connectors
There are many specifications and models of D-SUB connectors, and the common ones are D-SUB 9-pin, D-SUB 15-pin, D-SUB 25-pin and other series. These series have their own scope of application and characteristics. Users can choose the appropriate specifications and models according to actual needs. At the same time, the prices of different specifications and models are also different. Users need to consider factors such as cost and applicability when choosing.
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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. D-SUB connector insulation is poor
Performance: short circuit, insulation resistance is too poor.
Cause: high humidity in the use environment, serious pollution, water or other liquids penetrate into the insulator, etc.
Solution: Improve the use environment, clean the inside of the insulator, and replace the insulator. -
4. 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.
