D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
DM51157 VEAM	CONN D-SUB PIN 20AWG SLDR GOLD	484
030-1952-002 VEAM	CONN D-SUB PIN 26-30AWG CRIMP	0
DM5374525 VEAM	CONN D-SUB PIN 16AWG SLDR CUP	2022
DM1303431 VEAM	CONN D-SUB SOCKET 16AWG CRIMP	563
030-1952-000 VEAM	CONN D-SUB PIN 20-24AWG CRIMP	53257
DM53740-5099 VEAM	CONN D-SUB PIN COAX CABLE SLDR	78
DM130341-1 VEAM	CONN D-SUB SOCKET 8AWG CRIMP	810
DM53745-112 VEAM	CONN D-SUB PIN SLDR GOLD	3935
DM53743-5000 VEAM	CONN D-SUB SOCKET COAX CABLE SLD	517
031-9540-007 VEAM	2D/CTA CON PIN FOR AWG 28 & 30	450
MDS-S-RL VEAM	CONN D-SUB SOCKET CRIMP 10K/REEL	3
DM130340-4 VEAM	CONN D-SUB PIN 16AWG CRIMP GOLD	12760
330-8515-101 VEAM	DSUB CON 12PIN F80 LMFB A36	0
DM130339-1 VEAM	CONN D-SUB PIN 12AWG CRIMP GOLD	3659
DM130364 VEAM	CONN D-SUB PIN SLDR	0
330-8933-000 VEAM	CONTACT SIGNAL H1 P R/A	0
DM53741-5000 VEAM	CONN D-SUB PIN COAX CABLE SLDR	966
DM130343-4 VEAM	CONN D-SUB SOCKET 16AWG CRIMP	0
330-7707-001 VEAM	D SUB	0
031-9540-000 VEAM	2D/CTA CON PIN 30U " PLATING	44810

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.