DCM27W2P500MN vs 749111-8
| Part Number |
|
|
| Category | D-Sub Connectors | D-Sub Connectors |
| Manufacturer | Amphenol ICC (FCI) | TE Connectivity AMP Connectors |
| Description | CONN D-SUB PLUG 27POS R/A SOLDER | CONN D-TYPE PLUG 100POS STR IDC |
| Package | - | - |
| Series | DMW HE507 | AMPLIMITE .050 III |
| Features | Mounting Brackets | Shielded |
| Mounting Type | Through Hole, Right Angle | Free Hanging (In-Line) |
| Termination | Solder | IDC, Ribbon Cable |
| Current Rating | 7.5A | 1A |
| Contact Finish | Gold | Gold |
| Number of Positions | 27 (25 + 2 Power) | 100 |
| Connector Type | Plug, Male Pins | Plug, Male Pins |
| Number of Rows | 2 | 2 |
| Connector Style | D-Sub, Combo | D-Type |
| Contact Type | Signal and Power (Not Included) | Signal |
| Flange Feature | Housing/Shell (Unthreaded) | - |
| Shell Material, Finish | Steel, Yellow Cadmium Plated | Steel, Tin-Nickel Plated |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 |
| Shell Size, Connector Layout | 4 (DC, C) - 27W2 | 0.050 Pitch x 0.100 Row to Row |
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1. Classification of D-SUB connectors
Solder cup D-Sub connector: This connector meets commercial industrial standards and can be paired with any docking solder cup D-Sub connector. The contacts are electroplated with flash gold, and the connector insulator meets the UL94V-0 standard. The maximum wire size is 20 AWG, and 9, 25, 37 and 50 pin specifications are available.
Crimp D-Sub connector: Crimp D-Sub connectors meet commercial industrial standards and can be used for most standard D-Sub male connectors. Compatible with 20-28 AWG wire range, available in 9, 15, 25 and 50 pin sizes.
Punch-type D-Sub connector: This connector is easily soldered into the through-hole of the printed circuit board or used in many other applications. Solder placement follows a standard footprint, and gold-plated contacts ensure long life. As an industrial standard commercial DB37 female PCB type connector, it has standard mounting holes for application flexibility. -
2. 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. -
3. 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. -
4. FAQ of D-SUB Connector
What is the reason for slow data transmission of D-SUB connector?
Performance: Slow or interrupted data transmission.
Cause: Inherent characteristics of serial communication.
Solution: Use faster communication standards or increase communication stability measures 24.
D-SUB connector signal attenuation
Symptom: Signal attenuation.
Cause: Long-distance transmission characteristics.
Solution: Use higher quality cables or add signal amplifiers.
