DCM21WA4S vs DBMY13W3SA197
| Part Number |
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| Category | D-Sub Connectors | D-Sub Connectors |
| Manufacturer | ITT Cannon, LLC | ITT Cannon, LLC |
| Description | CONN D-SUB RCPT 21POS PNL MNT | CONN D-SUB RCPT 13POS PNL MNT |
| Package | - | - |
| Series | Combo D?, D*M | Combo D?, D*M |
| Features | Shielded | Shielded |
| Mounting Type | Panel Mount | Panel Mount |
| Termination | Solder Cup | Solder Cup |
| Current Rating | 7.5A | 7.5A |
| Contact Finish | Gold | Gold |
| Number of Positions | 21 (17 + 4 Coax or Power) | 13 (10 + 3 Coax or Power) |
| Connector Type | Receptacle, Female Sockets | Receptacle, Female Sockets |
| Contact Finish Thickness | Flash | Flash |
| Number of Rows | 2 | 2 |
| Connector Style | D-Sub, Combo | D-Sub, Combo |
| Contact Type | Signal and Coax or Power (Not Included) | Signal and Coax or Power (Not Included) |
| Flange Feature | Housing/Shell (Unthreaded) | Housing/Shell (Unthreaded) |
| Shell Material, Finish | Steel, Yellow Chromate Plated Zinc | Steel, Tin-Nickel Plated |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 |
| Shell Size, Connector Layout | 4 (DC, C) - 21WA4 | 3 (DB, B) - 13C3, 13W3 |
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1. 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. -
2. 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. -
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.
