Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
MVU18-8R/LX-BOTTLE 3M	CONN RING CIRC 18-22AWG #8 100PC	2
0190730180 Woodhead - Molex	CONN RING CIRC 10-12AWG #10	5480
342143-1 TE Connectivity AMP Connectors	CONN RING CIRC 14-16AWG M4 CRIMP	12265
0190690055 Woodhead - Molex	CONN RING CIRC 18-22AWG #6 CRIMP	15030000
0190670037 Woodhead - Molex	CONN RING CIRC 8AWG #8 CRIMP	1058
1577636-1 TE Connectivity AMP Connectors	CONN RING CIRC 16-18AWG #3/8	363
P6-10RHT6-E Panduit Corporation	CONN RING D-SHAPE 6AWG #10 CRIMP	471220
94754 3M	CONN RING CIR 8AWG #1/4 1=1PC	120
132074-2 TE Connectivity AMP Connectors	CONN RING CIRC 2/0AWG M8 CRIMP	298
PN18-6R-3K Panduit Corporation	CONN RING CIRC 18-22AWG #6 CRIMP	2077
P22-8R-C Panduit Corporation	CONN RING CIRC 22-26AWG #8 CRIMP	0
696693-1 TE Connectivity AMP Connectors	CONN RING ANGLED 2AWG #3/8 CRIMP	100
5580506 Würth Elektronik Midcom	CONN RING CIRC M5 CRIMP	904
0190570022 Woodhead - Molex	CONN RING CIRC 18-22AWG #3/8	1578
R200-12 JST	CONN RING CRIMP 400 AWG #1/2	8
PNF14-10R-3K Panduit Corporation	CONN RING CIRC 14-16AWG #10	2382
31828 TE Connectivity AMP Connectors	CONN RING CIRC 10-12AWG #3/8	0
76-RT8-1/4L NTE Electronics, Inc.	NON INS RING TERM 8WG 50 BAG	25
329951 TE Connectivity AMP Connectors	CONN RING CIRC 22-26AWG #2 CRIMP	0
0191930209 Woodhead - Molex	CONN RING FLAT 6AWG #10 CRIMP	47

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)