D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Image	Part Number	Description / PDF	Quantity	Rfq
	09692827823 HARTING	D SUB MIXED MA 40 A SHORT CRIMP	0
	09691825823 HARTING	D SUB MIXED FE 40 A SHORT CRIMP	0
	61030000073 HARTING	INDUCOM CONTACTS MALE AWG 20 - 2	0
	09670007147 HARTING	DSUB-MA-CR-CON.AWG24-28;PL3;LR10	0
	09670007157 HARTING	CONN D-SUB PIN 24-28 AWG CRIMP	0
	09692825146 HARTING	D SUB MIXED MA CRIMP/CRIMP 50 OH	0
	09670008247 HARTING	CONN D-SUB SOCKET 20-24 AWG CRMP	0
	09692815721 HARTING	D SUB MIXED MA 20 A_S4_PRE LEADI	0
	09560008255 HARTING	DSUB HD FE CONTACT 24-26 AWG S4	0
	09670007136 HARTING	CONN D-SUB PIN 24-28 AWG CRIMP	0
	61030000112 HARTING	D-SUB CONTACT, TURNED,PL1,MALE,	0
	09692827422 HARTING	D SUB MIXED MA 30 A CR POWER CON	0
	09670008236 HARTING	DSUB FE-CR-KON AWG20-24 AFS1;RR1	0
	09560008155 HARTING	D SUB HD MA CONTACT 24-26 AWG S4	0
	09670094702 HARTING	MIN D FE CRIMP TERMINAL WITH 4-4	0
	09692817823 HARTING	D SUB MIXED MA 40A_PL3 SOLDER PO	0
	09560008485 HARTING	D SUB HD FE TURNED CRIMP CONTACT	0
	09692829001 HARTING	D SUB MIXED MA CRIMP AWG 12_SILV	0
	09670003576580 HARTING	D SUB MA TURNED CONTACT_AWG 18-2	0
	09691825146 HARTING	D SUB MIXED FE CRIMP/CRIMP 50 OH	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.