Modular Connectors

Modular Connectors - Jacks

Part Number	Description / PDF	Quantity
615008160521 Würth Elektronik Midcom	CONN MOD JACK 8P8C VERT SHIELDED	85
634104149621 Würth Elektronik Midcom	CONN MOD JACK 4P4C VERT UNSHLD	95
615004144021 Würth Elektronik Midcom	CONN MOD JACK 4P4C VERT UNSHLD	176
615006149421R Würth Elektronik Midcom	CONN MOD JACK 6P6C R/A UNSHLD	0
615008142621 Würth Elektronik Midcom	CONN MOD JACK 8P8C R/A SHIELDED	2442
615006149421M Würth Elektronik Midcom	CONN MOD JACK 6P6C R/A UNSHLD	0
615016137621 Würth Elektronik Midcom	CONN MOD JACK 8P8C R/A SHIELDED	1078
615008149521R Würth Elektronik Midcom	CONN MOD JACK 8P8C R/A UNSHLD	20
615008160121 Würth Elektronik Midcom	CONN MOD JACK 8P8C R/A SHIELDED	0
615006149421L Würth Elektronik Midcom	CONN MOD JACK 6P6C R/A UNSHLD	0
615008160421 Würth Elektronik Midcom	CONN MOD JACK 8P8C VERT SHIELDED	167
615008160621 Würth Elektronik Midcom	CONN MOD JACK 8P8C ANGL UNSHIELD	91
615008150121 Würth Elektronik Midcom	WR-MJ_MODULAR JACKS_MID-MOUNT_TH	226
61500814221 Würth Elektronik Midcom	CONN MOD JACK 8P8C R/A SHIELDED	428
634008150021 Würth Elektronik Midcom	CONN MOD JACK 10P8C R/A SHIELDED	0
634108149921 Würth Elektronik Midcom	CONN MOD JACK 10P8C R/A UNSHLD	0
634108185521 Würth Elektronik Midcom	CONN MOD JACK 8P8C WR-MJ	0
634108185421 Würth Elektronik Midcom	CONN MOD JACK 8P8C WR-MJ	0

Modular Connectors - Jacks

1. Overview

Modular connectors-jacks are standardized electro-mechanical interfaces used for connecting cables in telecommunications, data networks, and electronic systems. Their hot-swappable design and standardized dimensions enable rapid deployment and maintenance. These connectors maintain signal integrity while providing mechanical strain relief, playing critical roles in network infrastructure, consumer electronics, and industrial equipment.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
RJ11	6-position 2-conductor design, voice-grade transmission	Residential telephone lines
RJ45	8-position 8-conductor, supports up to 10GBASE-T Ethernet	LAN switches/routers
USB Type-A	Rectangular interface with 4-24 pins, supports USB 3.2 Gen2	Computer peripherals
HDMI	19-pin configuration, transmits uncompressed video/audio	Home theaters/monitors
Fiber LC	Duplex optical interface, supports 100Gbps+ transmission	Data center backbone

3. Structure and Components

Typical construction includes: - Insulating housing (high-temp thermoplastic) - Conductive contacts (phosphor bronze with gold plating) - Latch retention mechanism - Wire termination points (IDC or solder) - EMI shielding layer The modular design allows tool-less installation while maintaining mechanical stability through polarization keys and retention clips.

4. Key Technical Specifications

Parameter	Typical Values	Importance
Insertion Loss	<0.5dB @100MHz	Signal quality preservation
Durability	750-2000 mating cycles	Long-term reliability
Contact Resistance	10-30m	Power transmission efficiency
Insulation Resistance	>500M	Electrical safety
Operating Temp	-40 C to +85 C	Environmental adaptability

5. Application Fields

Telecom: PBX systems, DSL modems
IT Infrastructure: Server racks, PoE devices
Consumer Electronics: Smart TVs, gaming consoles
Industrial: PLC controllers, SCADA systems
Automotive: Telematics control units

6. Leading Manufacturers and Products

Manufacturer	Key Products
TE Connectivity	Category 8 RJ45 modules
Amphenol	Military-spec circular connectors
Molex	Optical LC duplex adapters
Delphi	Automotive-grade sealed jacks

7. Selection Guidelines

Key considerations: - Transmission speed requirements (e.g., Cat6a vs Cat8) - Environmental factors (temperature/humidity/vibration) - Mating cycle expectations - Shielding requirements (FTP vs UTP) - Backward compatibility needs - Cost vs performance trade-offs

8. Industry Trends

Development directions include: - 400Gbps+ optical interfaces - 0.8mm pitch miniaturization - Smart connectors with built-in sensors - PoE++ (90W+) capability integration - Bio-based polymer materials adoption The global market is projected to grow at 6.2% CAGR through 2030 driven by 5G and IoT deployments.