L777TWA3W3PC798 vs 745886-1
| Part Number |
|
|
| Category | D-Sub Connectors | D-Sub Connectors |
| Manufacturer | Amphenol ICC (Commercial Products) | TE Connectivity AMP Connectors |
| Description | CONN D-SUB PLUG 3POS R/A SOLDER | CONN D-SUB RCPT 25POS VERT SLDR |
| Package | - | - |
| Series | TW | AMPLIMITE HD-20 |
| Features | Grounding Indents | - |
| Contact Finish | Gold | Gold |
| Number of Positions | 3 (Power) | 25 |
| Connector Type | Plug, Male Pins | Receptacle, Female Sockets |
| Contact Finish Thickness | 30µin (0.76µm) | - |
| Number of Rows | 1 | 2 |
| Connector Style | D-Sub, Combo | D-Sub |
| Contact Type | Power | Signal |
| Shell Material, Finish | Steel, Tin Plated | Steel, Tin Plated |
| Shell Size, Connector Layout | 2 (DA, A) - 3W3 | 3 (DB, B) |
| Mounting Type | - | Through Hole |
| Termination | - | Solder |
| Current Rating | - | 6A |
| Flange Feature | - | Board Side (4-40) |
| Material Flammability Rating | - | UL94 V-0 |
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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. 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
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. -
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.
