Modular Connectors

Modular Connectors - Adapters

Part Number	Description / PDF	Quantity
RJF21G Socapex (Amphenol Pcd)	CONN MOD COUPLER 8P8C TO 8P8C	699
09352250312 HARTING	CONN MOD COUPLER 8P8C TO 8P8C	2
TM5RJ3-88(50) Hirose	CONN MOD JACK 8P8C R/A SHIELDED	0
UTS718RJFN Souriau-Sunbank by Eaton	CONN MOD COUPLER 8P8C TO 8P8C	169
PX0870 Bulgin	CONN MOD COUPLER 8P8C TO 8P8C	90
RJF2PE1G Socapex (Amphenol Pcd)	CONN MOD COUPLER 8P8C TO 8P8C	19
09452251107 HARTING	CONN MOD COUPLER 8P8C TO 8P8C	8
EHRJ45D6A Switchcraft / Conxall	CONN, RJ45, CAT6A, DIECAST HOUSI	24
1419022 Phoenix Contact	RJ45 COUPLING DEGREE OF PROTECTI	369
RJFTV62SA1G Socapex (Amphenol Pcd)	CONN MOD COUPLER 8P8C TO 8P8C	0
CP30725SMB Cliff	DUALSLIM BLKMTL CAT6A SHLD CSK	0
RJF62A1ZN Socapex (Amphenol Pcd)	CONN MOD COUPLER 8P8C TO 8P8C	5
RJF62SA1B Socapex (Amphenol Pcd)	CONN MOD COUPLER 8P8C TO 8P8C	25
RJF67A1ZN Socapex (Amphenol Pcd)	CONN MOD COUPLER 8P8C TO 8P8C	5
30-9242 Vitelec / Cinch Connectivity Solutions	CONN MOD COUPLER 8P8C TO 8P8C	81
EHRJ45P6AS Switchcraft / Conxall	EH SERIES PANEL CONNECTOR, RJ45	290
CP30723MB Cliff	DUALSLIM BLKMTL CAT3 RJ11 CSK	0
17-101614 CONEC	CONN MOD COUPLER 8P8C TO 8P8C	213
N234-001-SH Tripp Lite	CAT6 STRAIGHT-THROUGH MODULAR SH	144
1963510000 Weidmuller	CONN MOD COUPLER 8P8C TO 8P8C	0

Modular Connectors - Adapters

1. Overview

Modular connectors and adapters are standardized electro-mechanical interfaces enabling rapid connection/disconnection of electronic devices. These components ensure interoperability across systems through defined physical layouts, contact arrangements, and signal protocols. Their hot-swappable design supports system scalability, maintenance efficiency, and cross-platform compatibility in telecommunications, computing, and industrial applications.

2. Main Types & Functional Classification

Type	Key Features	Applications
RJ Series (RJ11/RJ45)	Click-lock plastic housing, 4-8 contacts, CAT5+ compliance	Telecom landlines, Ethernet networks
USB Adapters	Type-A/B/C variants, reversible design, up to 40Gbps support	Peripheral connectivity, mobile charging
DIN/Mini-DIN	Circular metal contacts, EMI shielding, 3-9 pins	Audio equipment, industrial sensors
Fiber Optic Adapters	LC/SC/MPO interfaces, <0.2dB insertion loss	Data centers, high-speed backbone networks

3. Structural Composition

Typical modular connectors integrate:

Mechanical Structure: Thermoplastic housing with precise contact alignment
Electrical Contacts: Phosphor bronze conductors with gold-plated surfaces (30-50 in)
Locking Mechanism: Spring-loaded latches or threaded couplings
Shielding Layer: EMI protection via metal cans or conductive coatings
Strain Relief: Cable anchoring system to prevent mechanical stress

4. Key Technical Parameters

Parameter	Typical Range	Critical Impact
Current Rating	1-10A	Power transmission capability
Contact Resistance	<10m	Signal integrity maintenance
Dielectric Withstanding Voltage	500V-2kV	Electrical safety assurance
Operating Temperature	-55 C to +125 C	Environmental reliability
Mating Cycles	500-10,000 cycles	Durability indicator

5. Application Fields

Telecommunications: Network switches, VoIP systems
Consumer Electronics: Smartphones, laptops
Industrial Automation: PLC interfaces, sensor arrays
Medical Equipment: Patient monitoring systems, diagnostic devices
Transportation: In-vehicle infotainment, avionics

6. Leading Manufacturers & Products

Vendor	Country	Signature Products
TE Connectivity	USA	Category 8 RJ45 modules
Amphenol	USA	MIL-DTL-38999 circular connectors
Molex	USA	Mini50 high-speed backplane connectors
L-com	USA	OM4 multimode fiber adapters

7. Selection Guidelines

Key evaluation criteria:

Signal Type: Power (voltage/current requirements) vs. data (frequency up to 40GHz)
Environmental Conditions: Temperature extremes, vibration exposure
Compliance Standards: RoHS, REACH, UL certification
Space Constraints: Board footprint and height limitations
Cost Optimization: Balance between gold-plating thickness and lifecycle costs

Example: Selecting USB-C with 40Gbps support for AR/VR headsets requiring high-bandwidth video transmission.

8. Industry Trends

Emerging directions include:

Miniaturization: 0.4mm pitch connectors for IoT devices
High-Speed Evolution: 112Gbps backplane connectors for 5G infrastructure
Smart Integration: Connectors with built-in current/voltage monitoring
Sustainability: Bio-based polymers reducing carbon footprint
Modular Hybrids: Combined power/data interfaces for industrial IoT gateways