D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
131A10039X CONEC	CONN D-SUB PIN 10-12AWG SLDR CUP	215
1727040134 Woodhead - Molex	CONN D-SUB PIN 20AWG SLDR CUP	1018
2029352000 Woodhead - Molex	MCAT MIDPOWER MALE 26-28AWG, 0.2	0
5-228596-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB SCKT COAX CABLE CRIMP	214
DM5374424 VEAM	CONN D-SUB SOCKET 16AWG SLDR CUP	1610
09691827140 HARTING	D SUB MIXED FE CR CRIMP COAX 50	0
DM537446 VEAM	CONN D-SUB SOCKET 12AWG SLDR CUP	2056
1688272 Phoenix Contact	CONN D-SUB SCKT 8-10AWG SLDR CUP	21
DM537405000 VEAM	CONN D-SUB PIN COAX CABLE SLDR	0
1731120055 Woodhead - Molex	CONN D-SUB SOCKET COAX GOLD	315200
212007-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN 12-14AWG CRIMP	562
030-1953-000 Vitelec / Cinch Connectivity Solutions	CONN D-SUB SOCKET 20-24AWG CRIMP	17346
L17DM537441 Storage & Server IO (Amphenol ICC)	CONN D-SUB SOCKET 6AWG SLDR CUP	832
8638PSS1005LF Storage & Server IO (Amphenol ICC)	CONN D-SUB SOCKET 16AWG SLDR CUP	1073
131A11029X CONEC	CONTACT PIN MALE CRIMP	162
L17DM537451 Storage & Server IO (Amphenol ICC)	CONN D-SUB PIN 6AWG SLDR CUP	1775
0579649702 Woodhead - Molex	CONN D-SUB PIN 20-22AWG CRIMP	0
09670008672 HARTING	CONN D-SUB SOCKET 20-24AWG CRIMP	0
8638PSS2005LF Storage & Server IO (Amphenol ICC)	CONN D-SUB SOCKET 12AWG SLDR CUP	336
09692827420 HARTING	CONN D-SUB PIN 16-20AWG CRIMP	46

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.