D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Housings

Image	Part Number	Description / PDF	Quantity	Rfq
	1731090527 Woodhead - Molex	FCT DSUB CRP PLG 09 PN	0
	1731130386 Woodhead - Molex	FCT HD DSUB CRP RCPT 26 PN W/CLI	0
	1731070302 Woodhead - Molex	FCT ML DSUB PLG 9W4 W/CLINCH M3	0
	1731090843 Woodhead - Molex	FCT DSUB CRP PLG 15 PN	0
	1731070162 Woodhead - Molex	CONN D-SUB HOUSING RCPT 1POS	0
	0709292020 Woodhead - Molex	CONN D-SUB HOUSING PLUG 60POS	0
	1731070300 Woodhead - Molex	FCT ML DSUB PLG 5W5 W/SLIDE LOCK	0
	1731070518 Woodhead - Molex	FCT ML DSUB PLG 8W8	0
	1731070485 Woodhead - Molex	FCT ML DSUB PLG 5W5	0
	1731070165 Woodhead - Molex	CONN D-SUB HOUSING RCPT 3POS	0
	1731070187 Woodhead - Molex	FCT ML DSUB CRP PLG 7W2 W/CLINCH	0

D-Sub, D-Shaped Connectors - Housings

1. Overview

D-Sub (D-subminiature) connectors and D-Shaped housings are metal-shelled electronics connectors characterized by their D-shaped mating interface. They ensure mechanical polarization and reliable signal/power transmission in critical applications. These components remain essential in industrial automation, telecommunications, and aerospace systems despite the rise of newer connector standards.

2. Main Types & Functional Classification

Type	Functional Features	Application Examples
Standard D-Sub Housings	9-104 contacts, 5-60A rating, basic EMI shielding	RS-232 serial ports, industrial control panels
High-Density Housings	Double-deck contacts, 26-104 contacts	Telecom backplanes, military data links
Waterproof Housings	IP67 rating, sealed mating interfaces	Marine instrumentation, outdoor telecom cabinets
Right-Angle Housings	90 PCB mount, space-saving design	Embedded industrial computers, test equipment

3. Structure & Composition

Typical D-Shaped housing consists of: - Metal Shell: Brass or zinc alloy with EMI/RFI shielding - Insulation Body: High-temperature resistant thermoplastic - Contact Arrangement: Multiple rows of signal/power pins - Mounting Features: Threaded inserts or panel clamps - Optional: Sealing gaskets, polarization keys

4. Key Technical Specifications

Parameter	Importance
Current Rating (5-60A)	Determines power transmission capacity
Contact Resistance ( 10m )	Impacts signal integrity
Dielectric Strength (1000VAC)	Ensures electrical safety
Operating Temperature (-55 C to +125 C)	Defines environmental tolerance
Shielding Effectiveness (60-100dB)	EMI/RFI protection level

5. Application Fields

Industrial Automation: PLCs, CNC machine controllers
Telecommunications: 4G/5G base stations, fiber optic equipment
Medical Equipment: Patient monitors, imaging systems
Aerospace: Avionics, flight control systems
Test & Measurement: Oscilloscopes, signal analyzers

6. Leading Manufacturers & Products

Manufacturer	Representative Product	Key Features
Amphenol	D38999 Series III	Military-grade sealing, 100G vibration resistance
TE Connectivity	DEUTSCH DT Series	High-density 96 contacts, quick-latch system
Molex	MICRO D HDM Series	0.050" contact spacing, 10Gbps data rate

7. Selection Guidelines

Define current/voltage requirements
Assess environmental conditions (temperature, moisture, vibration)
Determine shielding needs for EMI-sensitive applications
Choose mounting style (panel mount, PCB mount)
Budget consideration: Cost varies 20-300% by performance tier

8. Industry Trends

Current development directions include: - Miniaturization: 0.025" contact pitch prototypes - High-speed capabilities: Differential pair designs for 25Gbps+ - Material innovation: Conductive polymers replacing metal shells - Environmental compliance: Halogen-free flame retardant materials - Smart integration: Embedded sensors for condition monitoring