D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
L17-RR-D1-M-01-100 Storage & Server IO (Amphenol ICC)	CONN D-SUB PIN 20-24AWG CRIMP	0
1731120389 Woodhead - Molex	FCT TERM HPWR RA PC PLG 20 AMP D	100
L17-RR-D1-F-02-100 Storage & Server IO (Amphenol ICC)	CONN D-SUB SOCKET 20-24AWG CRIMP	2300
1727040190 Woodhead - Molex	CONN D-SUB SOCKET PCB GOLD	200
L17-RR-D1-M-02-100 Storage & Server IO (Amphenol ICC)	CONN D-SUB PIN 20-24AWG CRIMP	4288
170-102-170L001 NorComp	CONN D-SUB SOCKET 24-28AWG CRIMP	5290
161A13429X CONEC	CONN D-SUB PIN 24-28AWG CRIMP	7225
1731120136 Woodhead - Molex	CONN D-SUB PIN HOSE/TUBING	36
1731120086 Woodhead - Molex	CONN D-SUB SOCKET PCB GOLD	0
1731120430 Woodhead - Molex	FCT TERM SIGN STAMPED PLG CRP 20	2500
DM53745-110 VEAM	CONN D-SUB PIN SLDR GOLD	1517
09670008167 HARTING	CONN DSUB PIN 24AWG CRIMP 500PCS	6
DM53742-5004 VEAM	CONN D-SUB SOCKET COAX CABLE SLD	178
09692817422 HARTING	CONN D-SUB PIN SLDR CUP GOLD	113
1731120859 Woodhead - Molex	FCT TERM HPWR	200
1731120213 Woodhead - Molex	CONN D-SUB SOCKET 26-28AWG CRIMP	320
09691817421 HARTING	CONN D-SUB SOCKET SLDR CUP GOLD	0
162A18719X CONEC	CONN D-SUB SOCKET 24-28AWG CRIMP	5197
1731120043 Woodhead - Molex	CONN D-SUB SCKT 8-12AWG SLDR CUP	0
1731120741 Woodhead - Molex	'FCT HD SIGN PLG CRP 22-28AWG 50	1000

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.