DCM27W2P500MN vs DBML25S043
| Part Number |
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| Category | D-Sub Connectors | D-Sub Connectors |
| Manufacturer | Amphenol ICC (FCI) | Amphenol ICC (FCI) |
| Description | CONN D-SUB PLUG 27POS R/A SOLDER | CONN D-SUB RCPT 25P STR SLDR CUP |
| Package | - | - |
| Series | DMW HE507 | DM HE501 |
| Features | Mounting Brackets | - |
| Mounting Type | Through Hole, Right Angle | Free Hanging (In-Line) |
| Termination | Solder | Solder Cup |
| Current Rating | 7.5A | 7.5A |
| Contact Finish | Gold | Gold |
| Number of Positions | 27 (25 + 2 Power) | 25 |
| Connector Type | Plug, Male Pins | Receptacle, Female Sockets |
| Number of Rows | 2 | 2 |
| Connector Style | D-Sub, Combo | D-Sub |
| Contact Type | Signal and Power (Not Included) | Signal |
| Flange Feature | Housing/Shell (Unthreaded) | Cable Side (M3) |
| Shell Material, Finish | Steel, Yellow Cadmium Plated | Steel, Yellow Cadmium Plated |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 |
| Shell Size, Connector Layout | 4 (DC, C) - 27W2 | 3 (DB, B) |
| Ingress Protection | - | Harsh Environment |
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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. 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.
