D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
2029354000 Woodhead - Molex	MCAT MIDPOWER MALE 26-28AWG, 1.3	0
1731120079 Woodhead - Molex	CONN D-SUB PIN PCB GOLD	90
1731120721 Woodhead - Molex	PLUG FCT CRP 26-28AWG 8U	1000
09692817143 HARTING	D SUB MIXED MA SOLDER CRIMP COAX	20
1731120034 Woodhead - Molex	CONN D-SUB PIN 12-14AWG CRIMP	385
0830009502 Woodhead - Molex	CONN D-SUB SOCKET 26-28AWG CRIMP	5
DM130340 VEAM	CONN D-SUB PIN 16AWG CRIMP GOLD	1005
40-9428F Vitelec / Cinch Connectivity Solutions	CONN D-SUB SOCKET CRIMP 1=100	1
DM537405 VEAM	CONN D-SUB PIN COAX CABLE CRIMP	28
1731120912 Woodhead - Molex	FCT TERM HPWR	190
0579196702 Woodhead - Molex	CONN D-SUB PIN 20-22AWG CRIMP	7019
212013-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN 16-18AWG CRIMP	246
09691815420 HARTING	CONN D-SUB SOCKET SLDR CUP GOLD	8
L17DM53744207 Storage & Server IO (Amphenol ICC)	CONN D-SUB SOCKET CRIMP GOLD	2000
09670007277 HARTING	CONN D-SUB SOCKET 24-28AWG CRIMP	1000
030-51307-001 JAE Electronics	CONN CONTACT	746
1731120189 Woodhead - Molex	CONN D-SUB SOCKET PCB GOLD	110
1731120255 Woodhead - Molex	FCT SCREW M3 17.5 NI	0
1731120386 Woodhead - Molex	FCT TERM HPWR SDR RCPT 20 AMP 12	100
170-002-170L001 NorComp	CONN D-SUB SOCKET 24-28AWG CRIMP	30000

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.