D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
132A10029X CONEC	CONN DSUB SCKT 12-14AWG SLDR CUP	601
131A11049X CONEC	CONTACT PIN MALE CRIMP	38
161A13389X CONEC	CONN D-SUB PIN 20-24AWG CRIMP	10151
132C11019X CONEC	CONN D-SUB SOCKET 16-20AWG CRIMP	1168
131C11019X CONEC	CONN D-SUB PIN 16-20AWG CRIMP	95
132C10039X CONEC	CONN DSUB SCKT 10-12AWG SLDR CUP	2211
132C12049X CONEC	CONN D-SUB SOCKET SLDR GOLD	239
132C11039X CONEC	CONN D-SUB SOCKET 10-12AWG CRIMP	2371
132J15019X CONEC	CONN D-SUB SOCKET 20-24AWG CRIMP	5246
131A13049X CONEC	CONTACT PIN MALE R/A	0
131A16049X CONEC	MALE R/A 40A FOR CRIMP/SOLDER	0
132A16049X CONEC	FEM R/A 40A FOR CRIMP/SOLDER	0
162A11889X CONEC	CONN D-SUB SOCKET 24-28AWG CRIMP	950
132A17049X CONEC	CONTACT PIN FML SCREW ON	0
131A13119X CONEC	CONTACT PIN MALE R/A	0
131A23019X CONEC	CONTACT PIN FML CRIMP	0
131A12039X CONEC	CONTACT PIN MALE STRGHT	0
131A10049X CONEC	CONN D-SUB PIN 8-10AWG SLDR CUP	0
131A12059X CONEC	CONN D-SUB PIN SLDR GOLD	0
132A25019X CONEC	CONTACT PIN DSUB COMBO	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.