D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
1731120309 Woodhead - Molex	CONN DSUB SCKT 12-16AWG SLDR CUP	193
DM130343 VEAM	CONN D-SUB SOCKET 16AWG CRIMP	855
1-745267-0 TE Connectivity AMP Connectors	CONN D-SUB PIN 18-22AWG CRIMP	0
204370-5 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN 22-28AWG CRIMP	0
131C11119X CONEC	CONN D-SUB PIN 16-20AWG CRIMP	2478
1727040154 Woodhead - Molex	CONN DSUB SCKT 16-20AWG SLDR CUP	0
L17DM537421 Storage & Server IO (Amphenol ICC)	CONN D-SUB SOCKET COAX CRIMP	186
40-9856M Vitelec / Cinch Connectivity Solutions	CONN D-SUB PIN CRIMP GOLD 1=100	57
D11023834 VEAM	CONN D-SUB PIN 20-28AWG CRIMP	23599
1731120166 Woodhead - Molex	CONN D-SUB PIN COAX GOLD	99
170-202-170L003 NorComp	CONN D-SUB SOCKET 20-26AWG CRIMP	0
0504208000 Woodhead - Molex	CONN D-SUB SOCKET 18-22AWG TIN	2147483647
09691827421 HARTING	CONN D-SUB SOCKET 12-14AWG CRIMP	304
132J14019X CONEC	CONN D-SUB SOCKET 20AWG SLDR CUP	189
1731120282 Woodhead - Molex	HIGH CURRENT SOLDER POT CONTACT	200
7908-PIN-F-10K Oupiin	D-SUB CRIMP CUP PIN, FEMALE SIDE	1000
1731120029 Woodhead - Molex	CONN D-SUB SOCKET 16-20AWG CRIMP	191
162A18419X CONEC	CONN D-SUB SOCKET 22AWG CRIMP	26033
09692870060 HARTING	D SUB MIXED MA PNEUMATIC CONTACT	144
1731120267 Woodhead - Molex	FCT RUBBER BUSHING SIZE 3-4A	2003300

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.