D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
1731120734 Woodhead - Molex	'FCT SIGN RCPT CRP 26-28AWG 8U''	1000
DM53740 VEAM	CONN D-SUB PIN COAX CABLE CRIMP	100
5-166052-1 TE Connectivity AMP Connectors	CONN D-SUB SOCKET 24-28AWG CRIMP	2538
1731120042 Woodhead - Molex	CONN D-SUB PIN 8-12AWG SLDR CUP	0
09691817821 HARTING	D SUB MIXED MA 20A PL3 SOLDER PO	59
1731120999 Woodhead - Molex	HIGH CURRENT CRIMP CONTACT (30A)	200
1731120047 Woodhead - Molex	CONN D-SUB SOCKET COAX GOLD	95
166052-1 TE Connectivity AMP Connectors	CONN D-SUB SOCKET 24-28AWG CRIMP	6055
5115.24.1015.403	HIGH POWER INSERTS - PCB MOUNT P	100
206795-3 TE Connectivity Aerospace Defense and Marine	CONN D-SUB SOCKET 26-28AWG CRIMP	1425
1727040147 Woodhead - Molex	CONN D-SUB PIN 12-16AWG SLDR CUP	1007
7918-PIN-F-10K Oupiin	HD D-SUB CRIMP TYPE PINS, FEMALE	1000
DM511578 VEAM	CONN D-SUB PIN 20AWG SLDR GOLD	1951
09670003676 HARTING	D-SUB, FE HIGH-END AWG 18-22 CRI	63
340100502B C&K	CONN D-SUB SOCKET CRIMP	385
09670008287 HARTING	CONN D-SUB PIN 20-24AWG 1=1000PC	3
166051-1 TE Connectivity AMP Connectors	CONN D-SUB SOCKET 20-24AWG CRIMP	2666
170-001-170L001 NorComp	CONN D-SUB PIN 24-28AWG CRIMP	64095
161A13439X CONEC	CONN D-SUB PIN 24-28AWG CRIMP	1950
09692817421 HARTING	CONN D-SUB PIN SLDR CUP GOLD	269

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.