Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
1-322338-0 TE Connectivity AMP Connectors	CONN RING CIRC 14-16AWG #10	0
0190690219 Woodhead - Molex	CONN RING CIRC 10-12AWG #1/4	745
8-35664-3 TE Connectivity AMP Connectors	CONN RING CIRC 8AWG #1/2 CRIMP	215
34484 TE Connectivity AMP Connectors	CONN RING D-SHAPE 12-14AWG #10	18452
A4-56R-C Panduit Corporation	BATTERY CABLE LUG, 4 AWG, 5/16"	67010000
342105-1 TE Connectivity AMP Connectors	CONN RING CIRC 16-22AWG M6 CRIMP	7180
5580610 Würth Elektronik Midcom	CONN RING CIRC 7AWG M6 CRIMP	472
0193230014 Woodhead - Molex	CONN RING CIRC 2.5-6MM M6 CRIMP	2500
8209 Keystone Electronics Corp.	CONN RING CIRC 18-22AWG #6 CRIMP	11773200
2-34147-1 TE Connectivity AMP Connectors	CONN RING CIRC 16-22AWG #6 CRIMP	13836
51864-1 TE Connectivity AMP Connectors	CONN RING CIRC 14-16AWG #8 CRIMP	11464
33460 TE Connectivity AMP Connectors	CONN RING CIRC 8AWG #10 CRIMP	0
0192030094 Woodhead - Molex	CONN RING CIRC 10-12AWG #10	3099
PK10-56R-X Panduit Corporation	CONN RING CIRC 10-12AWG #5/16	0
2-36149-5 TE Connectivity AMP Connectors	CONN RING CIRC 18AWG #6 CRIMP	7783
MU14-6RHT/SX-BOTTLE 3M	CONN RING CIRC 14-16AWG #6 100PC	5
0191930149 Woodhead - Molex	CONN RING CIRC 8AWG #10 CRIMP	2823
53054 TE Connectivity AMP Connectors	CONN RING CIRC 24AWG #4 CRIMP	0
RV18-14Q 3M	CONN RING CIR 18-22AWG 1/4 1=1PC	250
322870-1 TE Connectivity AMP Connectors	CONN RING CIRC 2AWG #5/16 CRIMP	1091

Terminals - Ring Connectors

1. Overview

Ring connectors are cylindrical metallic terminals with a closed loop at one end, designed to establish secure electrical connections between wires and screw-type terminals. They prevent wire fraying and ensure stable contact in high-vibration environments. Critical for power transmission and signal integrity in industrial and automotive systems.

2. Main Types & Functional Classification

Type	Functional Features	Application Examples
Open Barrel Ring	Split design for easy wire insertion	Battery terminals, control panels
Closed Barrel Ring	360 compression for maximum conductivity	High-vibration machinery
Insulated Ring	Polymer coating for short-circuit prevention	Automotive electronics

3. Structure & Composition

Typical construction includes:

Copper alloy body (C11000/C14500) with tin/nickel plating
Insulation sleeve (PVC/nylon, 105 C rating)
Barrel section with 2-3 crimping zones for wire retention
Loop diameter tolerance 0.1mm for screw compatibility

4. Key Technical Specifications

Parameter	Typical Range	Importance
Ampacity	10-150A	Current carrying capacity
Contact Resistance	0.5-5m	Power loss prevention
Dielectric Strength	1kV-5kV	Insulation reliability
Vibration Resistance	15G @ 10Hz-2kHz	Automotive compliance

5. Application Fields

Primary industries:

Automotive (battery cables, alternator connections)
Industrial automation (PLC terminals, motor drives)
Renewable energy (solar charge controllers)
Aerospace (avionics grounding systems)

6. Leading Manufacturers & Products

Manufacturer	Product Series	Key Features
TE Connectivity	DT Ring Terminals	Corrosion-resistant alloy, 125A rating
Phoenix Contact	RTME Series	Push-in wire connection, 600V compliance
Sumitomo Electric	HR4H-S-DC5V	Automotive-grade tin-plated copper

7. Selection Guidelines

Key considerations:

Current/voltage requirements
Wire gauge compatibility (AWG 22-4/0)
Environmental factors (temperature, humidity, vibration)
UL/CSA certification for safety compliance
Color-coded insulation for circuit identification

8. Industry Trends

Emerging developments include:

Miniaturization for EV battery management systems
Graphene-enhanced plating for corrosion resistance
Smart connectors with integrated current sensing
Lead-free manufacturing processes (RoHS compliance)