D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
09560008265 HARTING	CONN DSUB SCK 26AWG CRIMP 500PCS	2
09691827423 HARTING	D SUB MIXED FE 40 A C POWER CONT	1
09691815823 HARTING	D SUB MIXED FE 40A_SHORT_S4 SOLD	100
09691815233 HARTING	CONN D-SUB SOCKET COAXIAL CABLE	0
09691817143 HARTING	D SUB MIXED FE SOLDER CRIMP COAX	36
09560008165 HARTING	CONN D-SUB PIN 24-26AWG CRIMP	0
09670008570 HARTING	CONN D-SUB PIN 20-24AWG CRIMP	0
09691815421 HARTING	CONN D-SUB SOCKET SLDR CUP GOLD	11
09670008470 HARTING	CONN D-SUB SOCKET 2-20AWG CRIMP	109
09692817141 HARTING	D SUB MIXED MA S CRIMP COAX 50 O	355
09691817140 HARTING	D SUB MIXED FE S CRIMP COAX 50 O	48
09692815423 HARTING	CONN D-SUB PIN SLDR CUP GOLD	125
09692870063 HARTING	CONN D-SUB PIN HOSE/TUBING	245
09691815140 HARTING	CONN D-SUB SOCKET COAXIAL CABLE	259
09670008276 HARTING	CONN D-SUB SOCKET 20-24AWG CRIMP	0
09670008266 HARTING	CONN D-SUB SCKT 20-24AWG CRIMP	870
09692825421 HARTING	CONN D-SUB PIN 12-14AWG CRIMP	469
09692870062 HARTING	D SUB MIXED MA PNEUMATIC CONTACT	8
09560008277 HARTING	CONN D-SUB SOCKET 24-26AWG CRIMP	3451
09691825421 HARTING	CONN D-SUB SOCKET 12-14AWG CRIMP	116

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.