D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
DM53742-18 VEAM	CONN D-SUB SCKT COAX CABLE CRIMP	87
DM53745-25 VEAM	CONN D-SUB PIN 16AWG SLDR CUP	1535
121661-0563 VEAM	MDSM CON F CRP GLD FLASH 10K/R	3
980-0009-471 VEAM	DSUB CON D*MA SKT CRP1 A156	8919
D130365-2 VEAM	DSUBCOAX 50 P STR 50 OHM 50U	0
DM51157-15 VEAM	DSUB COAX	24
DM53743-16 VEAM	CONN D-SUB SCKT COAX CABLE CRIMP	31
DM53742-5089 VEAM	CONN D-SUB SCKT COAX CABLE CRIMP	93
DM130342-1 VEAM	CONN D-SUB SOCKET 12AWG CRIMP	82
DM53742-5002 VEAM	CONN D-SUB SOCKET COAX CABLE SLD	275
DM130352-2 VEAM	CONN D-SUB PIN COAX CABLE SLDR	2503
DM53745-7 VEAM	CONN D-SUB PIN 12AWG SLDR CUP	0
DM53744-95 VEAM	CONN D-SUB SOCKET SLDR GOLD	632
DM130339 VEAM	CONN D-SUB PIN 12AWG CRIMP GOLD	1210
DM53744-98 VEAM	CONN D-SUB SOCKET SLDR GOLD	0
DM130363 VEAM	DSUB COAX 4 SKT STR 50 OHM ST	0
MDS-S-TS VEAM	CONN D-SUB SOCKET 26-28AWG CRIMP	24
D130365 VEAM	DSUB COAX 4 P STR 50 OHM 4U	0
DM53740-16 VEAM	CONN D-SUB PIN COAX CRIMP GOLD	20
DM53744-94 VEAM	CONN D-SUB SOCKET SLDR GOLD	284

D-Sub, D-Shaped Connectors - Contacts

1. Overview

D-Subminiature connectors, commonly referred to as D-Sub or D-Shaped connectors, are electrical connectors featuring a D-shaped metal shield. They are widely used for data, signal, and power transmission in industrial, computing, and communication systems. Their robust design ensures reliable electrical continuity and mechanical stability in demanding environments.

2. Main Types and Functional Classification

Type	Function Features	Application Examples
DE-9	9-pin configuration, compact size	RS-232 serial interfaces, PC COM ports
DB-25	25-pin configuration, parallel signal transmission	Older printer ports, industrial control systems
DC-37	37-pin high-density arrangement	Military equipment, test instrumentation
HD D-Sub	High-density double-row contacts	Video graphics (VGA), industrial automation

3. Structure and Components

Typical D-Sub connectors consist of: - Metal Shell: Zinc alloy or steel housing with EMI shielding - Insulator: High-temperature resistant thermoplastic or ceramic - Contact Arrangement: Male pins (plug) or female sockets (jack) in staggered rows - Mounting Hardware: Threaded or snap-in fixing mechanisms Contacts are usually made of phosphor bronze or beryllium copper with gold/tin plating for corrosion resistance.

4. Key Technical Specifications

Parameter	Typical Range	Significance
Current Rating	1-5 A per contact	Determines power handling capacity
Voltage Rating	50-600 V AC/DC	Ensures dielectric strength
Contact Resistance	10 m	Impacts signal integrity
Insulation Resistance	1000 M	Prevents leakage currents
Operating Temperature	-55 C to +125 C	Environmental durability

5. Application Fields

Computer peripherals (monitors, keyboards)
Industrial automation (PLCs, sensors)
Telecommunications (modems, routers)
Aerospace (avionics systems)
Test and measurement equipment

6. Leading Manufacturers and Products

Manufacturer	Representative Product
TE Connectivity	DEUTSCH D-Sub series with EMI filtering
Amphenol	High-density HD D-Sub 90-position connectors
Molex	Micro D-Sub for compact industrial applications
Samtec	High-speed D-Sub with 10 Gbps data rate

7. Selection Guidelines

Verify current/voltage requirements against contact ratings
Choose shell size based on pin count needs
Consider locking mechanisms for vibration-prone environments
Specify plating material for corrosion resistance
Ensure compliance with industry standards (e.g., MIL-DTL-24308)

8. Industry Trends

Key developments include miniaturization (sub-D connectors), hybrid designs integrating USB-C/HDMI signals, improved EMI shielding for 5G applications, and surface-mount technology (SMT) compatibility. Environmental regulations drive adoption of RoHS-compliant materials and lead-free plating solutions.