D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
09692827721 HARTING	D SUB MIXED MA 20 A PRE LEADING	0
61030000113 HARTING	D-SUB CONTACT,TURNED,PL1,FEMALE,	0
09692825823 HARTING	D SUB MIXED MA 40 A SHORT CRIMP	0
09670008147 HARTING	CONN D-SUB PIN 20-24 AWG CRIMP	0
09670008672580 HARTING	D SUB FE TUR.CR CON 1,3 M AU AWG	0
09560008375 HARTING	D SUB HD MA TURNED CRCONTS4 AW	0
09670008137 HARTING	CONN D-SUB PIN 20-24 AWG CRIMP	0
09692835421 HARTING	D SUB MA 20A PCB SOLDER CONTACT	0
73550440016 HARTING	DSUB CONTACT 09670008178 IN BAGS	0
09692865422 HARTING	D SUB MA 30A PCB PRESS IN CONTAC	0
09670008148 HARTING	CONN D-SUB PIN 20-24 AWG CRIMP	0
09670007138 HARTING	CONN D-SUB PIN 24-28 AWG CRIMP	0
09696812550 HARTING	DSUB MA RIGHT ANG HIGH VOLTAGE C	0
09691815238 HARTING	D SUB MIXED FE CRIMP/CRIMP COAX	0
09691829002 HARTING	D SUB MIXED FE CRIMP AWG 12_SILV	0
09691815236 HARTING	D SUB MIXED FE CRIMP/CRIMP COAX	0
09930005576 HARTING	CONN D-SUB PIN 22-26AWG CRIMP	75
09670007258 HARTING	DSUB-FE-CR-KON AWG24-28;AFS2;L10	0
09692822550 HARTING	D-SUB HIGH VOLTAGE MALE CRIMP CO	0
09560008477 HARTING	D SUB HD FE TURNED CR-CONTPL3 A	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.