D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
1731120165 Woodhead - Molex	CONN D-SUB PIN COAX GOLD	35100
132J20029X CONEC	CONN D-SUB SOCKET GOLD	902
131A10029X CONEC	CONN D-SUB PIN 12-14AWG SLDR CUP	840
1731120200 Woodhead - Molex	CONN D-SUB PIN 20-24AWG CRIMP	395
1603505 Phoenix Contact	CONN D-SUB PIN CRIMP	45
DM1303391 VEAM	CONN D-SUB PIN 12AWG CRIMP GOLD	1373
132J24019X CONEC	CONN D-SUB SOCKET SLDR GOLD	4
09560008167 HARTING	CONN D-SUB PIN 24-26AWG CRIMP	1480
09670007570 HARTING	CONN D-SUB PIN 24-28AWG CRIMP	0
09691815143 HARTING	CONN D-SUB SOCKET COAXIAL CABLE	17
09560008385 HARTING	D SUB HD MA TURNED CRIMP CONTACT	762
206071-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB SOCKET 22-28AWG CRIMP	8755
09691815422 HARTING	CONN D-SUB SOCKET SLDR CUP GOLD	78
1731120415 Woodhead - Molex	FCT TERM SIGN STAMPED PLG CRP 20	0
09692817821 HARTING	D SUB MIXED MA 20A PL3 SOLDER PO	1337
8638PSS1505LF Storage & Server IO (Amphenol ICC)	CONN D-SUB SOCKET 14AWG SLDR CUP	811
09692815821 HARTING	D SUB MIXED MA 20A S4 SOLDER POW	888
166995-2 TE Connectivity AMP Connectors	CONN D-SUB PIN 28-32AWG CRIMP	1638
DM1303404 VEAM	CONN D-SUB PIN 16AWG CRIMP GOLD	911
DM51155-7 VEAM	CONN D-SUB SOCKET 20AWG SLDR CUP	259

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.