D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
211159-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN 8AWG CRIMP GOLD	998
1218266-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN 18AWG CRIMP GOLD	6693
1-208778-0 TE Connectivity Aerospace Defense and Marine	CONN D-SUB SOCKET PCB GOLD	648
5-228618-2 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN COAX CABLE CRIMP	152
206793-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB SOCKET 20-24AWG CRIMP	957
207683-6 TE Connectivity Aerospace Defense and Marine	CONN PIN D-SUB CONTACT SIZE 22	0
211159-2 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN 10AWG CRIMP GOLD	1630
5-228596-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB SCKT COAX CABLE CRIMP	214
212007-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN 12-14AWG CRIMP	562
212013-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN 16-18AWG CRIMP	246
5-228618-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN COAX CABLE CRIMP	117
204370-2 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN 22-28AWG CRIMP	17144
206495-3 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN 26-28AWG CRIMP	4951
212008-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB SOCKET 12-14AWG CRIMP	310
211161-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB SOCKET 8AWG CRIMP	121
204370-8 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN 22-28AWG CRIMP	5569
207684-3 TE Connectivity Aerospace Defense and Marine	CONN D-SUB SOCKET PCB GOLD	1000
206071-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB SOCKET 22-28AWG CRIMP	8755
1-212565-0 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN PCB GOLD	149
204370-5 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN 22-28AWG CRIMP	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.