D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
1731120488 Woodhead - Molex	FCT TERM SIGN STAMPED PLG CRP 26	701700
031-1007-048 VEAM	CONN D-SUB SOCKET 26-30AWG CRIMP	11620
09692817230 HARTING	D SUB MIXED MA S CRIMP COAX 75 H	19
7918-PIN-M-10K Oupiin	HD D-SUB CRIMP TYPE PINS, MALE,	1000
1599600 Phoenix Contact	CONN D-SUB SOCKET CRIMP GOLD	2048
206793-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB SOCKET 20-24AWG CRIMP	957
207683-6 TE Connectivity Aerospace Defense and Marine	CONN PIN D-SUB CONTACT SIZE 22	0
1731121747 Woodhead - Molex	HAND TOOL FCT MCD	2
1731120145 Woodhead - Molex	CONN D-SUB PIN PCB GOLD	39
DM53740-15 VEAM	CONN D-SUB PIN COAX CABLE CRIMP	208
09692825422 HARTING	CONN D-SUB PIN 10-12AWG CRIMP	0
09692815421 HARTING	CONN D-SUB PIN SLDR CUP GOLD	16
1727040157 Woodhead - Molex	CONN D-SUB SOCKET 10-12AWG CRIMP	100
DM537458 VEAM	CONN D-SUB PIN 16AWG SLDR CUP	673
09692815141 HARTING	CONN D-SUB PIN COAXIAL CABLE	15
1731120223 Woodhead - Molex	CONN D-SUB PIN 24-28AWG CRIMP	0
DM1303411 VEAM	CONN D-SUB SOCKET 8AWG CRIMP	932
1731120163 Woodhead - Molex	CONN D-SUB SOCKET PCB GOLD	100
132A11019X CONEC	CONN D-SUB SOCKET 16-20AWG CRIMP	1297
1731120030 Woodhead - Molex	CONN D-SUB PIN 20AWG SLDR CUP	106400

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.