D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
09670007476 HARTING	CONN D-SUB SOCKET 24-28AWG CRIMP	73
09692812550 HARTING	CONN D-SUB PIN 20AWG SLDR GOLD	6051
09691817141 HARTING	D SUB MIXED FE S CRIMP COAX 50 O	40
09670008258 HARTING	CONN D-SUB SKT CRIMP 10000PCS	10000
09691815141 HARTING	CONN D-SUB SOCKET COAXIAL CABLE	2
09692817230 HARTING	D SUB MIXED MA S CRIMP COAX 75 H	19
09692825422 HARTING	CONN D-SUB PIN 10-12AWG CRIMP	0
09692815421 HARTING	CONN D-SUB PIN SLDR CUP GOLD	16
09692815141 HARTING	CONN D-SUB PIN COAXIAL CABLE	15
09670008268 HARTING	DSUB FMALE SKT CRIMP 100PCS	5400
09670007276 HARTING	DSUB FE-CR-KON- AWG24-28 AFS1;EI	261
09692815233 HARTING	CONN D-SUB PIN COAXIAL CABLE	0
09670007576 HARTING	D SUB MA TURNED CONTACT_AWG 24-2	20918
09691827140 HARTING	D SUB MIXED FE CR CRIMP COAX 50	0
09670008672 HARTING	CONN D-SUB SOCKET 20-24AWG CRIMP	0
09692827420 HARTING	CONN D-SUB PIN 16-20AWG CRIMP	46
09692817143 HARTING	D SUB MIXED MA SOLDER CRIMP COAX	20
09691815420 HARTING	CONN D-SUB SOCKET SLDR CUP GOLD	8
09670007277 HARTING	CONN D-SUB SOCKET 24-28AWG CRIMP	1000
09691817422 HARTING	CONN D-SUB SOCKET SLDR CUP GOLD	126

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.