D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
131C11049X CONEC	CONN D-SUB PIN 8-10AWG CRIMP	3519
132A10049X CONEC	CONN D-SUB SCKT 8-10AWG SLDR CUP	66
1731120133 Woodhead - Molex	CONN D-SUB PIN HOSE/TUBING	82
207684-3 TE Connectivity Aerospace Defense and Marine	CONN D-SUB SOCKET PCB GOLD	1000
1731121088 Woodhead - Molex	FCT TERM HFREQ SDR PLG 50 OHM	200
DM1303401 VEAM	CONN D-SUB PIN 16AWG CRIMP GOLD	1000
1731120748 Woodhead - Molex	FCT HDSIGN PLG CRP 24-28 300/REE	200
132A10039X CONEC	CONN DSUB SCKT 10-12AWG SLDR CUP	1430
8638PPC1006LF Storage & Server IO (Amphenol ICC)	CONN D-SUB PIN 16-18AWG CRIMP	360
1731120823 Woodhead - Molex	COAX PCB ANGLED CONTACT 50 OHM	96
09560008175 HARTING	CONN D-SUB PIN 24-26AWG CRIMP	1046
902-NM5808 Connex (Amphenol RF)	CONN D-SUB PIN COAX GOLD	0
166053-1 TE Connectivity AMP Connectors	CONN D-SUB PIN 20-24AWG CRIMP	67000
131J20029X CONEC	CONN D-SUB PIN COAX GOLD	913
86564520064LF Storage & Server IO (Amphenol ICC)	CONN D-SUB PIN 20-24AWG CRIMP	1826
1731120050 Woodhead - Molex	CONN D-SUB PIN COAX CRIMP GOLD	568400
1731120031 Woodhead - Molex	CONN D-SUB SOCKET 20AWG SLDR CUP	120400
030-1953-002 VEAM	CONN D-SUB SOCKET 26-30AWG CRIMP	0
09692827423 HARTING	D SUB MIXED MA 40 A CR POWER CON	202
L17DM537405001 Storage & Server IO (Amphenol ICC)	CONN D-SUB PIN COAX GOLD	218

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.