D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
131C11019X CONEC	CONN D-SUB PIN 16-20AWG CRIMP	95
206794-4 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN 26-28AWG CRIMP	2018
DM1303424 VEAM	CONN D-SUB SOCKET 12AWG CRIMP	52
09692827821 HARTING	D SUB MIXED MA 20 A SHORT CRIMP	103
1597862 Phoenix Contact	CONN D-SUB PIN CRIMP	7401600
340107804B C&K	CONN D-SUB SOCKET 24-28AWG CRIMP	674
DM1303434 VEAM	CONN D-SUB SOCKET 16AWG CRIMP	508
1731120048 Woodhead - Molex	CONN D-SUB PIN PCB GOLD	473
1727040142 Woodhead - Molex	CONN D-SUB PIN 16-20AWG CRIMP	139
1731120216 Woodhead - Molex	CONN D-SUB SOCKET 20-24AWG CRIMP	90
09670007168 HARTING	CONN D-SUB PIN 24-28AWG CRIMP	1000
09670007268 HARTING	CONN DSUB SCK 28AWG CRIMP 500PCS	2
132C10039X CONEC	CONN DSUB SCKT 10-12AWG SLDR CUP	2211
1731121735 Woodhead - Molex	HAND TOOL FCT MCD	1
DM51157 VEAM	CONN D-SUB PIN 20AWG SLDR GOLD	484
170-101-170L001 NorComp	CONN D-SUB PIN 24-28AWG CRIMP	17997
1731120197 Woodhead - Molex	CONN D-SUB SOCKET PCB GOLD	100
L17RRD1M11100 Storage & Server IO (Amphenol ICC)	DSUB PIN RR RELEASE CNTCT	700
030-1952-002 VEAM	CONN D-SUB PIN 26-30AWG CRIMP	0
09692825230 HARTING	CONN D-SUB PIN COAX CABLE CRIMP	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.