Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
MU18-6RHT/SX-BOTTLE 3M	CONN RING CIRC 18-22AWG #6 100PC	22
94759 3M	CONN RING CIR 6AWG #3/8 1=1PC	240
MNG14-10R/LX-BOTTLE 3M	CONN RING CIRC 14-16AWG 10 100PC	1
15-38-W 3M	CONN RING CIRC 6AWG #3/8 CRIMP	800
94851 3M	CONN RING CIR 14-16AWG #10 1=1PC	0
94740 3M	CONN RING CIR 10-12AWG #10 1=1PC	725
MNG18-4R/SK 3M	CONN RING CIRC 18-22AWG #4 CRIMP	29419
MVU14-8R/SX-BOTTLE 3M	CONN RING CIRC 14-16AWG #8 100PC	0
MN8-10R/SK 3M	CONN RING CIRC 8AWG #10 CRIMP	86
13-56-W 3M	CONN RING CIRC 10-12AWG #5/16	0
MVU18-38RK 3M	CONN RING CIRC 18-22AWG #3/8	1004
MU10-8RK 3M	CONN RING CIRC 10-12AWG #8 CRIMP	984
M6-38RX-BOTTLE 3M	CONN RING CIRC 6AWG #3/8 10PC	8
94847 3M	CONN RING CIR 10-12AWG 1/4 1=1PC	0
M10-14R/SK 3M	CONN RING CIRC 10-12AWG #1/4	206
94751 3M	CONN RING CIR 10-12AWG #6 1=1PC	3163
MNG14-8RX-BOTTLE 3M	CONN RING CIRC 14-16AWG #8 100PC	1
94724 3M	CONN RING CIR 18-22AWG #6 1=1PC	7516
94747 3M	CONN RING CIR 10-12AWG 1/2 1=1PC	0
MV10-8RX-BOTTLE 3M	CONN RING CIRC 10-12AWG #8 50PC	3

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)