Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
94756 3M	CONN RING CIR 8AWG #1/2 1=1PC	0
13-56-P 3M	CONN RING CIRC 10-12AWG #5/16	0
11-4S 3M	CONN RING CIRC 18-22AWG #4 CRIMP	1162
MVU10-10RK 3M	CONN RING CIRC 10-12AWG #10	6063
MU14-6RHT/SX-BOTTLE 3M	CONN RING CIRC 14-16AWG #6 100PC	5
RV18-14Q 3M	CONN RING CIR 18-22AWG 1/4 1=1PC	250
M4-38RX-BOTTLE 3M	CONN RING CIRC 4AWG #3/8 10PC	4
94731 3M	CONN RING CIR 14-16AWG 1/4 1=1PC	563
MN24-6RK 3M	CONN RING CIRC 22-26AWG #6 CRIMP	993
MV14-8R/LX-BOTTLE 3M	CONN RING CIRC 14-16AWG #8 100PC	2
12-14S-W 3M	CONN RING CIRC 14-16AWG #1/4	0
MVU14-6R/SX 3M	CONNRING CIRC 14-16AWG 1=1BOTTLE	5
MH14-38RK 3M	CONN RING CIRC 14-16AWG #3/8	0
13-14-P 3M	CONN RING CIRC 10-12AWG #1/4	485
MVU14-8RK 3M	CONN RING CIRC 14-16AWG #8 CRIMP	696
94757 3M	CONN RING CIR 8AWG #5/16 1=1PC	333
MU14-10RX 3M	CONNRING CIRC 14-16AWG 1=1BOTTLE	3
94852 3M	CONN RING CIR 14-16AWG 1/4 1=1PC	286
MNG14-14R/SX-BOTTLE 3M	CONN RING CIRC 14-16AWG 100PC	1
MNG18-10R/LK 3M	CONN RING CIRC 18-22AWG #10	2141

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)