D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
1218267-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB SOCKET 18AWG CRIMP	1018
09692825140 HARTING	DSUB MA PCR CRIMP CONTACT 50 OHM	31
162A11879X CONEC	CONN D-SUB SOCKET 24-28AWG CRIMP	0
161C18009X CONEC	CONN D-SUB PIN 22AWG CRIMP GOLD	3129
1658670-5 TE Connectivity AMP Connectors	CONN D-SUB PIN 22-28AWG CRIMP	1686
09691825420 HARTING	CONN D-SUB SOCKET 16-20AWG CRIMP	132
09692825821 HARTING	D SUB MIXED MA 20 A SHORT CRIMP	502
170-101-170L002 NorComp	CONN D-SUB PIN 24-28AWG CRIMP	0
031-1007-073 VEAM	CONN D-SUB SOCKET 20-24AWG CRIMP	5111
1727040150 Woodhead - Molex	CONN D-SUB SOCKET 16-20AWG CRIMP	349
1731120033 Woodhead - Molex	CONN D-SUB SOCKET 16-20AWG CRIMP	25
09691825821 HARTING	D SUB MIXED FE 20 A SHORT CRIMP	692
09692815230 HARTING	CONN D-SUB PIN COAXIAL CABLE	0
031-1007-054 VEAM	CONN DSUB SCKT 18/20/22AWG CRIMP	800
131J15019X CONEC	CONN D-SUB PIN 20-24AWG CRIMP	300
8638PPS1005LF Storage & Server IO (Amphenol ICC)	CONN D-SUB PIN 16AWG SLDR CUP	2076
1727040130 Woodhead - Molex	CONN D-SUB PIN COAX GOLD	216400
MDSSTS VEAM	CONN D-SUB SOCKET 26-28AWG CRIMP	5133
1727040189 Woodhead - Molex	CONN D-SUB PIN PCB GOLD	41
09670005570 HARTING	CONN D-SUB PIN 22-26AWG CRIMP	1011

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.