D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
DM53740-5001 VEAM	CONN D-SUB PIN COAX CABLE SLDR	1137
D130363 VEAM	DSUB COAX 4 SKT STR 50 OHM ST	0
DM130339-6 VEAM	CONN D-SUB PIN CRIMP GOLD	1891
DM53744-24 VEAM	DSUB SKT COAX HP SOD G50	3843
030-2487-017 VEAM	DSUB CMBO CRMP PIN 24-26AWG	1365
DM53740-17 VEAM	DSUB PIN COAX CRMP STR 50O G50	9
330-0351-016 VEAM	CRIMP CONTACTS	7383
DM130358-2 VEAM	CONN D-SUB PIN COAX CABLE SLDR	328
330-5291-037 VEAM	DSUB CON D*MA P AWG 20,22,24	0
DM130352-4 VEAM	CONN D-SUB PIN COAX CABLE SLDR	218
DM53744-1 VEAM	CONN D-SUB SOCKET 8AWG SLDR CUP	1266
031-9540-015 VEAM	2D/CTA CON PIN PC .020 X .255	0
DM130346-2 VEAM	CONN D-SUB SOCKET COAX CABLE SLD	0
030-2488-017 VEAM	DSUB CMBO CRMP SKT 24-26AWG	22
DM51157-8 VEAM	CONN D-SUB PIN 20AWG SLDR GOLD	140
DM537447 VEAM	CONN D-SUB SOCKET 16AWG SLDR CUP	0
DM130342-4 VEAM	CONN D-SUB SOCKET 12AWG CRIMP	0
DM53740-5101 VEAM	CONN D-SUB PIN COAX CABLE SLDR	22
DM130340-1 VEAM	CONN D-SUB PIN 16AWG CRIMP GOLD	183
330-8933-022 VEAM	CONTACT SIG H3 P R/A 50	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.