D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Housings

Part Number	Description / PDF	Quantity
DBMA-25P-F0 VEAM	CONN D-SUB HOUSING PLUG 25POS	0
DBMP5W5S VEAM	CONN D-SUB HOUSING RCPT 5POS	309
DCMK8W8S VEAM	CONN D-SUB HOUSING RCPT 8POS	78
DBMR5W5SA197 VEAM	COMBO 5W5 F SOD G TIN	0
DEMAM9SK75F0 VEAM	DSUB 9 F CRIMP G50 CAD	1304
DBME5W5S VEAM	CONN D-SUB HOUSING RCPT 5POS	309
DCMA-37S-F0 VEAM	CONN D-SUB HOUSING RCPT 37POS	0
DAME3WK3PK87 VEAM	CONN D-SUB HOUSING PLUG 3POS	458
DAM3W3PNM VEAM	CONN D-SUB HOUSING PLUG 3POS	132
DBMAM44SA197F0 VEAM	CONN D-SUB HD HOUSING RCPT 44POS	19
DBMAE25SA197F0 VEAM	CONN D-SUB HOUSING RCPT 25POS	0
DCMF8W8S VEAM	CONN D-SUB HOUSING RCPT 8POS	78
DAMM3W3PK87 VEAM	CONN D-SUB HOUSING PLUG 3POS	6764
DBMA44PF225F0 VEAM	DSUB 44 M CRIMP F0 HD SS	63
DCMA37SA101F0 VEAM	CONN D-SUB HOUSING RCPT 37POS	236
DBA25PK87F0 VEAM	DSUB 25 M CRIMP F0 TIN	1712
DBM5W5S1A7NA197 VEAM	CONN D-SUB HOUSING RCPT 5POS	0
DAM3W3SA101 VEAM	CONN D-SUB HOUSING RCPT 3POS	4448
DBMMY5W5SA197 VEAM	COMBO 5W5 F SOD G50 TIN	0
DCMMY8W8PA101 VEAM	CONN D-SUB HOUSING PLUG 8POS	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