D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
030-1952-004 VEAM	CONN D-SUB PIN CRIMP	0
DM537451 VEAM	CONN D-SUB PIN 8AWG SLDR CUP	1287
DM5374527 VEAM	CONN D-SUB PIN 12AWG SLDR CUP	1609
DM53745-110 VEAM	CONN D-SUB PIN SLDR GOLD	1517
DM53742-5004 VEAM	CONN D-SUB SOCKET COAX CABLE SLD	178
330-5291-055 VEAM	CONN D-SUB PIN 18AWG/22AWG CRIMP	937
DM53743-5001 VEAM	CONN D-SUB SOCKET COAX CABLE SLD	121
DM53742-5001 VEAM	CONN D-SUB SOCKET COAX CABLE SLD	729
DM130342 VEAM	CONN D-SUB SOCKET 12AWG CRIMP	514
DM537441 VEAM	CONN D-SUB SOCKET 8AWG SLDR CUP	0
DM537405008 VEAM	CONN D-SUB PIN COAX CABLE SLDR	144
030-1955-000 VEAM	CONN DSUB SCKT 18AWG/22AWG CRIMP	3487
DM537457 VEAM	CONN D-SUB PIN 12AWG SLDR CUP	1033
DM5374425 VEAM	CONN D-SUB SOCKET 12AWG SLDR CUP	1209
031-1007-048 VEAM	CONN D-SUB SOCKET 26-30AWG CRIMP	11620
DM53740-15 VEAM	CONN D-SUB PIN COAX CABLE CRIMP	208
DM537458 VEAM	CONN D-SUB PIN 16AWG SLDR CUP	673
DM1303411 VEAM	CONN D-SUB SOCKET 8AWG CRIMP	932
DM5374528 VEAM	CONN D-SUB PIN 8AWG SLDR CUP	487
DM537405001 VEAM	CONN D-SUB PIN COAX CABLE SLDR	766

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.