Rectangular Connectors

Rectangular Connectors - Accessories

Part Number	Description / PDF	Quantity
3341-5 3M	SCREW PANHEAD THRD CUT 4-24X5/16	3072
3505-8024 3M	CONN RETAINER CLIP 24POS SHORT	4337
3448-152250 3M	STRAIN RELIEF 50POS 2MM	0
3448-89136 3M	STRAIN RELIEF 36 POS IDC SOCKET	0
3448-3024 3M	STRAIN RELIEF 24 CONT SOCK CONN	221
3490-1 3M	PULL TAB 9,10,14,15,16POS WHITE	1102
3448-45108 3M	STRAIN RELIEF FOR 45108 SOCKET	233
3448-4664 3M	STRAIN RELIEF 64 POS	86
3448-2020 3M	CONN STRAIN RELIEF 20POS METAL	191
3448-3060 3M	STRAIN RELIEF 60 CONT SOCK CONN	255
3448-89134 3M	STRAIN RELIEF 34 POS IDC SOCKET	96
3448-89126 3M	STRAIN RELIEF 26 POS IDC SOCKET	3365
3448-4610 3M	STRAIN RELIEF 10 POS	1894
3505-31-BULK BLK-PK 3M	CONN LONG EJECT LATCH BLACK	806
3448-89144 3M	STRAIN RELIEF 44 POS IDC SOCKET	966
3505-8020 3M	CONN RETAINER CLIP 20POS SHORT	1508
3858-060 3M	CONN STRAIN RELIEF 60POS 820SER	0
3448-3030 3M	STRAIN RELIEF 30 CONT SOCK CONN	107
3448-4634 3M	STRAIN RELIEF 34 POS	941
D3448-89150 3M	STRAIN RELIEF 50POS D89-SERIES	478

Rectangular Connectors - Accessories

1. Overview

Rectangular connectors - accessories refer to supplementary components designed to enhance the performance, durability, and functionality of rectangular electrical connectors. These accessories include covers, locking mechanisms, cable clamps, adapters, and sealing elements. They play a critical role in protecting connectors from environmental factors, ensuring mechanical stability, and enabling compatibility across systems. With the increasing complexity of electronic systems in industries like telecommunications, automotive, and industrial automation, these accessories have become essential for maintaining reliable signal and power transmission.

2. Main Types and Functional Classification

Type	Function	Application Example
Dust Covers	Protect connectors from dust, moisture, and debris	Outdoor communication equipment
Locking Rings	Prevent accidental disconnection under vibration	Aerospace sensor systems
Cable Clamps	Secure cables to prevent strain on contacts	Industrial machinery
Adapter Panels	Enable interface between different connector standards	Data center server racks
Sealing Grommets	Provide IP67-rated watertight seals	Marine electronics
Mounting Brackets	Facilitate secure panel or PCB installation	Medical diagnostic devices

3. Structure and Composition

Typical accessories consist of:

Material: High-temperature resistant plastics (e.g., PBT, nylon) or metal alloys (e.g., aluminum, stainless steel)
Design: Molded housings with snap-fit or threaded interfaces
Coatings: Corrosion-resistant platings (e.g., nickel, zinc)
Sealing Elements: Elastomer O-rings or gaskets for environmental protection

4. Key Technical Specifications

Parameter	Description	Importance
Material Type	Plastic/metal composition	Determines durability and temperature resistance
Operating Temp	-55 C to +125 C range	Ensures performance in extreme conditions
IP Rating	IP65 to IP68	Defines protection level against solids/liquids
Contact Resistance	10m	Maintains signal integrity
Vibration Resistance	MIL-STD-202F compliant	Prevents failure in dynamic environments
Installation Method	Push-pull, screw, or clip-on	Affects ease of maintenance

5. Application Fields

Key industries utilizing these accessories include:

Telecommunications: 5G base stations, fiber optic enclosures
Automotive: EV charging systems, ADAS sensors
Industrial Automation: PLC control cabinets, robotic arms
Medical: MRI machines, patient monitoring systems
Aerospace: Avionics, satellite communication modules

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Feature
TE Connectivity	Dura-Con Dust Covers	UL94 V-0 flammability rating
Amphenol	Sealed Panel Mount Kits	IP68 protection up to 3m depth
Molex	Mini50 Locking Adapters	High-density signal conversion
Delphi	Automotive Grade Cable Clamps	Vibration tested to 2000 hours
ITT Cannon	Ruggedized MIL-DTL-38999 Adapters	Operating temp -65 C to +200 C

7. Selection Guidelines

Key considerations for selection:

Environmental Conditions: Outdoor applications require UV-resistant materials
Connector Compatibility: Match dimensions with IEC 61076 standards
Sealing Requirements: Select IP67/IP68 for submersion applications
Material Selection: Aluminum for EMI shielding, plastic for weight-sensitive uses
Regulatory Compliance: RoHS/REACH for EU markets, UL certification for North America

8. Industry Trends

Emerging developments include:

Miniaturization: Sub-1mm pitch accessories for IoT devices
Modular Designs: Interchangeable components for rapid system reconfiguration
Smart Integration: Embedded sensors in locking mechanisms for predictive maintenance
Eco-friendly Materials: Bio-based polymers replacing traditional plastics
High-Speed Compatibility: Accessories supporting 25+ Gbps data rates