D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Image	Part Number	Description / PDF	Quantity	Rfq
	13-000321 CONEC	CONN D-SUB SOCKET 8-10AWG CRIMP	0
	162C18709X CONEC	CONN D-SUB SOCKET 20-24AWG CRIMP	0
	132J20049X CONEC	CONN D-SUB SOCKET GOLD	0
	131J31019X CONEC	CONN D-SUB PIN COAX CRIMP GOLD	0
	131J24019X CONEC	CONN D-SUB PIN PCB GOLD	0
	13-000311 CONEC	CONN D-SUB SOCKET 10-12AWG CRIMP	0
	131J25019X CONEC	CONN D-SUB PIN PCB GOLD	0
	13-000291 CONEC	CONN D-SUB SOCKET 16-20AWG CRIMP	0
	132C12019X CONEC	CONN D-SUB SOCKET SLDR GOLD	0
	131C16039X CONEC	CONN D-SUB PIN 10-12AWG GOLD	0
	131J33019X CONEC	CONN D-SUB PIN COAX CRIMP GOLD	0
	132J21029X CONEC	CONN D-SUB SOCKET COAX CRIMP	0
	132A13119X CONEC	CONTACT PIN FML R/A	0
	131J25519X CONEC	CONN D-SUB PIN PCB GOLD	0
	131J35019X CONEC	CONN D-SUB PIN PCB GOLD	0
	132J21039X CONEC	CONN D-SUB SOCKET COAX CRIMP	0
	131C00700A CONEC	MALE CR.CONT LAST MAKE TYPE	0
	132J25519X CONEC	CONN D-SUB SOCKET PCB GOLD	0
	131C12059X CONEC	CONN D-SUB PIN SLDR GOLD	0
	131A15039A CONEC	MALE CRIMP CONT FOR 18AWG WIRE	0

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.