Modular Connectors

Modular Connectors - Adapters

Part Number	Description / PDF	Quantity
1018790000 Weidmuller	CONN MOD COUPLER 8P8C TO 8P8C	476280
1963470000 Weidmuller	CONN MOD COUPLER 8P8C TO 8P8C	18
8808450000 Weidmuller	CONN MOD COUPLER 8P8C TO 8P8C	645
8879050000 Weidmuller	CONN MOD COUPLER 8P8C TO 8P8C	11769
1012310000 Weidmuller	CONN MOD COUPLER 8P8C TO 8P8C	1470
1962840000 Weidmuller	CONN MOD COUPLER 8P8C TO 8P8C	8
1963490000 Weidmuller	CONN MOD COUPLER 8P8C TO 8P8C	5
1963510000 Weidmuller	CONN MOD COUPLER 8P8C TO 8P8C	0
1068820000 Weidmuller	CONN MOD JACK 8P8C	15
1068870000 Weidmuller	IE-CD-V14MRJ-C-MA	0
8808400000 Weidmuller	CONN MOD ADAPTER 8P8C TO 8P8C	0
1012370000 Weidmuller	CONN MOD COUPLER 8P8C TO 8P8C	0
8829440000 Weidmuller	CONN MOD COUPLER 8P8C TO 8P8C	0
1122710000 Weidmuller	CONN MOD COUPLER 8P8C TO 8P8C	0
8829450000 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