D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
09692815234 HARTING	D SUB MIXED MA SOLDER/CRIMP COAX	0
09670007676 HARTING	D-SUB AWG 24-28 FEMALE CLIP CONT	0
09692817233 HARTING	D SUB MIXED MA SOLDER CRIMP COAX	0
09670008256 HARTING	DSUB-FE-CR-KON AWG20-24;AFS1;L10	0
09670007236 HARTING	DSUB FE-CR-KON AWG24-28 AFS1;RR1	0
09670003676580 HARTING	D-SUB AWG 18-22 FEMALE CLIP CONT	0
09691827422 HARTING	D SUB MIXED FE 30 A POWER CONTAC	0
09692825143 HARTING	D SUB MIXED MA COAX CRIMP/CRIMP	0
09692870061 HARTING	D SUB MIXED MA PNEUMATIC CONTACT	0
09692827233 HARTING	D SUB MIXED MA CRIMP/CRIMP COAX	0
09560008377 HARTING	D SUB HD MA TURNED CRCONTPL3 A	0
09691827230 HARTING	D SUB MIXED FE CRIMP COAX 75 OHM	0
09670007257 HARTING	DSUB-FE-CR-KON AWG24-28;AFS3;L10	0
09692815236 HARTING	D SUB MIXED MA CRIMP/CRIMP COAX	0
09560008387 HARTING	D SUB HD MA TURNED CRIMP CONTACT	0
09930005476 HARTING	CONN D-SUB SOCKET 22-26AWG CRIMP	90
09692825237 HARTING	D SUB MIXED MA CRIMP/CRIMP 75 OH	0
09692815147 HARTING	D SUB MIXED MA SOLDER/CRIMP 50 O	0
73550400109 HARTING	DSUB CU (+) F 20-24 AWG TYPE T R	0
09691827821 HARTING	D SUB MIXED FE 20 A SHORT CRIMP	0

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.