D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
09560008177 HARTING	CONN D-SUB PIN 24-26AWG CRIMP	4792
09691817823 HARTING	D SUB MIXED FE 40A_SHORT_PL3 SOL	0
09670008176 HARTING	CONN D-SUB PIN 20-24AWG CRIMP	0
09560008175 HARTING	CONN D-SUB PIN 24-26AWG CRIMP	1046
09692827423 HARTING	D SUB MIXED MA 40 A CR POWER CON	202
09560008167 HARTING	CONN D-SUB PIN 24-26AWG CRIMP	1480
09670007570 HARTING	CONN D-SUB PIN 24-28AWG CRIMP	0
09691815143 HARTING	CONN D-SUB SOCKET COAXIAL CABLE	17
09560008385 HARTING	D SUB HD MA TURNED CRIMP CONTACT	762
09691815422 HARTING	CONN D-SUB SOCKET SLDR CUP GOLD	78
09692817821 HARTING	D SUB MIXED MA 20A PL3 SOLDER PO	1337
09692815821 HARTING	D SUB MIXED MA 20A S4 SOLDER POW	888
09670008267 HARTING	DSUB-FE-CR-KON AWG20-24;AFS3;L50	1440
09560008157 HARTING	D SUB HD MA CONTACT 24-26 AWG PL	0
09670008277 HARTING	CONN D-SUB SOCKET 20-24AWG CRIMP	55
09670005470 HARTING	CONN D-SUB SOCKET 22-26AWG CRIMP	510
09670003672 HARTING	D SUB FE TUR. CON. AWG 18-22_1,3	75
09670007470 HARTING	CONN D-SUB SOCKET 24-28AWG CRIMP	425
09692827421 HARTING	CONN D-SUB PIN 12-14AWG CRIMP	65
09691817423 HARTING	CONN D-SUB SOCKET SLDR CUP GOLD	785

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.