Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
SC35-8-10 Remington Industries	LUG TERMINALS, 2 AWG GAUGE WIRE,	49
PV10-56RX-D Panduit Corporation	CONN RING CIRC 10-12AWG #5/16	800
P10-10R-L Panduit Corporation	CONN RING CIRC 10-14AWG #10	289110100
0190670028 Woodhead - Molex	CONN RING CIRC 8AWG #1/2 CRIMP	969
94749 3M	CONN RNG CIR 10-12AWG 5/16 1=1PC	1711
PN14-14R-C Panduit Corporation	CONN RING CIRC 14-16AWG #1/4	6334100
0192210598 Woodhead - Molex	CONN RING FLAT 2/0AWG #5/8 CRIMP	61
15-58-W 3M	CONN RING CIRC 6AWG #5/8 CRIMP	396
P14-56R-M Panduit Corporation	CONN RING CIRC 14-18AWG #5/16	4245
8-322454-2 TE Connectivity AMP Connectors	CONN RING CIRC 10-12AWG #8 CRIMP	500
42751-2 TE Connectivity AMP Connectors	CONN RING CIRC 14-16AWG CRIMP	2163
0190570060 Woodhead - Molex	CONN RING CIRC 14-16AWG #1/4	11
2-36932-2 TE Connectivity AMP Connectors	CONN RING CIRC 4/0AWG #1/4 CRIMP	262
0190840009 Woodhead - Molex	CONN RING CIRC 14-18AWG #10	6380
0190540075 Woodhead - Molex	CONN RING CIRC 14-16AWG #3/8	3521
0190690049 Woodhead - Molex	CONN RING CIRC 18-22AWG #3/8	972
0190750024 Woodhead - Molex	CONN RING CIRC 14-16AWG #10	1368
0191640004 Woodhead - Molex	CONN RING CIRC 18-22AWG #1/4	0
PV12-8HDR-L Panduit Corporation	CONN RING CIRC 12-16AWG #8 CRIMP	536
52045-1 TE Connectivity AMP Connectors	CONN RING CIRC 1/0AWG #5/16	2

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)